Supercharger & automatic TRANSMISSION!

[Kwanghyun Chi]

Hi, I just want to ask if any of u guys are suffering from the same kind of issue. :hi:

I have supercharger kit, and my car is automatic. My car is 2003 3series.

Here is the problem.

1) Doesn't shift smoothly. (Pause 1-2 seconds, then it shifts)
2) Sometimes, I saw check engine signal. (I must turn off the engine, and restart. Then, check engine signal is gone.)

Btw, when I saw the check engine signal, car doesn't roll like before when it is without check engine signal.

Above all, it happens when I keep pushing pedal without foot driven shifting.

Most importantly, when my car is in manual mode, this problem appears quite more often. (In fact, almost always from 3-->4th gear shift)

Do u think it's just because of increased power and torque?

:mad:

Do I really have to alway shift manually? I just don't want to be conscious of shifting. I want to just push hard, and drive fast.

Any PM regarding this issue will be also appreciated!

[Bimmer Dude Xi]

Interesting, I was think of going FI. I wonder how this will turn out

[mcr_driver]

have you had the code's run yet to see why the CEL came on?? it could be the early signs of tranny failure but i wanna see what code's they are first before i give a dead tranny diagnosis.

[MachRc]

is this your level 10 tranny thats giving you this issue? did you go level ten becasue your old tranny blew up?? did it feel better with the stock tranny? maybe its the AWD?

[Kwanghyun Chi]

is this your level 10 tranny thats giving you this issue? did you go level ten becasue your old tranny blew up?? did it feel better with the stock tranny? maybe its the AWD?

Before I set up level 10, I had seen the same kind of problem.

It has happened since I installed VF supercharger kit. (Since my first test drive after the installation of supercharger kit)

It just hasn't gone away till now~


At that time, error code indicated "Rev limit exceed".

Maybe, auto tranny can't quickly shift because of huge torque increase. (And, it automatically shut-off the engine to save the engine!!)
--> With the warning signal, car doens't accelerate as usual unless I restart engine.

Ok, if this is a problem, I want to solve this.
--> Make it shift super quicker!! HAHA^^

Does anybody know how?

Three places couldn't solve this problem.

Any advice will be really appreciated!

Maybe, I know the answer already, if my comments above are true.

[Kwanghyun Chi]

Created by mistake!

Please refer to the above post!!

[Bimmer Dude Xi]

Any tranny software installed after supercharger install?

[Dhohn]

If you are thinking about going to a upgraded tranny DONT go with the company leve 10. If I were you I would be going with IPT transmissions.

You should look at doing a software upgrade though first before upgrading the transmission. With that said though there isnt a best solution, there are a number of companies that have the upgraded transmission software, personally I would go with ess tuning, im pretty sure that they had their supercharger kit in mind when changing the software for our auto transmission.

[TrippinBimmer]

Ok...going to give this a shot...

The reason why our car slip so much is for a smooth ride and that is how it is setup from the factory. This put more wear and tear on our transmission. If you are able to change the hydro flow of the valve body from adding a shift kit or software. Then you can fix your slipping/shift late. I am positive that the software will do it. If they are able to control the Hydro Pressure.

Isn't there a shift kit for this transmission? On GM Transmission on my 4l60e, I got Jim Performance to tuned up my transmission for tighter shifted for off road. I wonder does Dinan and ESS Transmission software does this? If so, this would be so cheap alternative instead of a shift kit.

If that isn't possible get a IPT Transmission and Some Transmission Software. I will be following this cause I will be doing HPF Turbo with a stout Auto Transmission...

[jmctype4]

:popcorn:

Subscribed.

[Bimmer Dude Xi]

:popcorn:

Subscribed.

:popcorn: Yea me too

[Dhohn]

ITP transmission, sells a reworked valve body for our cars. I wanna say its 700.00.

[TrippinBimmer]

ITP transmission, sells a reworked valve body for our cars. I wanna say its 700.00.

This is correct and so does Level 10. They modified the components on the Valve Body to introduce more flow and pressure. I'm still think that it is able to control most of this stuff on a Software for the transmission. If you do that to your transmission might as well go with the Red bands, HD Reverse Coupling and etc...I will be rebuilding my Transmission with the rebuild kit from ITP...When it comes time.

Edit:

Quoted from Ess Tuning Website...

"E46 MS43 330 Steptronic Transmission Software (101-47)

Optimized steptronic transmission software, recommended for both for NA and Supercharged applications. Increases shift firmness under heavy acceleration and increases the transmissions capability to hold power during shifts. The software also converts the operation to work similar to SMG''s, meaning it will not upshift in manual mode until you shift. Also increases the shift RPM point under automatic mode to 6600.

When you order this product, you will receive information on how to remove your transmission control unit for shipment to a ESS reprogramming center near you."

From this quote. This is telling me that ESS Tuning is able to increase pressure and raise the shift patterns of the transmission. I wonder can they raise the RPM shift point to 7k...uhmm

ESS Tuning if you can Chime in would be GREAT!

[Kwanghyun Chi]

This is correct and so does Level 10. They modified the components on the Valve Body to introduce more flow and pressure. I'm still think that it is able to control most of this stuff on a Software for the transmission. If you do that to your transmission might as well go with the Red bands, HD Reverse Coupling and etc...I will be rebuilding my Transmission with the rebuild kit from ITP...When it comes time.

Edit:

Quoted from Ess Tuning Website...

"E46 MS43 330 Steptronic Transmission Software (101-47)

Optimized steptronic transmission software, recommended for both for NA and Supercharged applications. Increases shift firmness under heavy acceleration and increases the transmissions capability to hold power during shifts. The software also converts the operation to work similar to SMG''s, meaning it will not upshift in manual mode until you shift. Also increases the shift RPM point under automatic mode to 6600.

When you order this product, you will receive information on how to remove your transmission control unit for shipment to a ESS reprogramming center near you."

From this quote. This is telling me that ESS Tuning is able to increase pressure and raise the shift patterns of the transmission. I wonder can they raise the RPM shift point to 7k...uhmm

ESS Tuning if you can Chime in would be GREAT!

Actually, I already tried ESS software about two yrs ago. (Btw, I had VF stage I supercharger kit, then)

You know what happened?

It just starts from 3rd gear when it is at idle. That is to say, "fuxxed up" as my mechanics said.

So, I returned the kit to ESS, and got refunded.

After removing ESS kit, it return to normal condition except for the same issue I had mentioned before.

Now, it still doens't shift well. NONO it shifts well, but engine becomes wierd especially when it comes to shift from 3rd to 4th gear.

Recently, it also happened when I shift from 2nd to 3rd gear. (Especially, when the weather becomes cold!)

However, if I shift manually, it has no no problem. But, do u think it's easy to shift manually with automatic transmission? Whenever I missed shift point, car goes crazy. It's really almost impossible to shift on time unless u give up having some fun. Moreover, it's annoying!

So, what I am going to do is to try DINAN software. But, my previous experience with ESS makes me a bit skeptical on this new trial.

And, I will also talk about this issue with VF.

Still, I want to hear any opinions regarding this issue from you guys~

Thanks

[Bimmer Dude Xi]

Actually, I already tried ESS software about two yrs ago. (Btw, I had VF stage I supercharger kit, then)

You know what happened?

It just starts from 3rd gear when it is at idle. That is to say, "fuxxed up" as my mechanics said.

So, I returned the kit to ESS, and got refunded.

After removing ESS kit, it return to normal condition except for the same issue I had mentioned before.

Now, it still doens't shift well. NONO it shifts well, but engine becomes wierd especially when it comes to shift from 3rd to 4th gear.

Recently, it also happened when I shift from 2nd to 3rd gear. (Especially, when the weather becomes cold!)

However, if I shift manually, it has no no problem. But, do u think it's easy to shift manually with automatic transmission? Whenever I missed shift point, car goes crazy. It's really almost impossible to shift on time unless u give up having some fun. Moreover, it's annoying!

So, what I am going to do is to try DINAN software. But, my previous experience with ESS makes me a bit skeptical on this new trial.

And, I will also talk about this issue with VF.

Still, I want to hear any opinions regarding this issue from you guys~

Thanks

AS far as shifting manually, you need to be carefully because the ESS software remove the factory feature of automatically shifting up in manual mode.

It's not really impossible to shift on time, you just have to know your car well. We both have the same car, when I use manual mode I rarely look at the cluster and I don't have any problems shifting at the right shift point. Since you have the supercharger kit, top end comes sooner. You just have to adapt to it.

I wanna say valve bodies might your problem but you said it shifts fine in manual mode.

I'm still thinking its software. What do you think TrippinBimmer? :hmm:

[TrippinBimmer]

The factory software is not design for the add hp or torque. Since its tune for smooth shifting points. But slipping at 3-4 at shift doesnt make sense to me cause the torque is not as much shifting to a higher gear. When you had the ESS Program. Did the Clear your adaptive logic logs? It was probably an error on there part when that reprogram it. So far Dinan and Ess is the only 2 program that has this Step Program. I will talk to ESS and see if yall can give this another shot.

[wasp9166]

so your saying the ess soft made your car start in 3rd car from idle? i dont see how this is possible

[TrippinBimmer]

so your saying the ess soft made your car start in 3rd car from idle? i dont see how this is possible

It is Possible. Since, I am a Computer Science Major. This happen all the time in the programing world over some small mistype peice of code. A Fellow Friend of mine had a problem with the Factory ZHP Step Program. That when he shift out of 1st it will skip second and go to 3rd gear. He had to get his adaptive logic logs and other stuff reprogram to perform correctly.

Edit:

I just contacted Dinan and ask them a few questions about the Tranny Software. The Hydro Pressure in the Valve Body is increase for Firmer Shifts. The Shift Points have been raised. The Redline Shift is 240 before the engine redline on the new DME Software from Dinan. Has the full function of a manual shift step. I also asked them about using it with a turbo setup and they asked me why didn't the Turbo Manufacture didn't write a program for the auto. If they are saying its a Complete System. Why did they leave off the Tranny. For ESS Tuning not working with your setup can be that very reason. Design to use with ESS S/C. This is a Reason why if u go S/C. I would have Gone Ess Tuning T/S S/C. Due to the fact that it was fully thought through for the auto guys and manuals. But I highly doubt it and should be compatible with others. The Dinan Tech said there will be an improvement over the factory software but not guaranteed to be highly efficient since it was design to use with here stage 1-3 engine software.

ESS Tuning talked to Todd and he was very informative about this software and IMHO...This is the way to go. Does everything that the Dinan Software but its tuned for Boost...

[Kwanghyun Chi]

Edit:

I just contacted Dinan and ask them a few questions about the Tranny Software. The Hydro Pressure in the Valve Body is increase for Firmer Shifts. The Shift Points have been raised. The Redline Shift is 240 before the engine redline on the new DME Software from Dinan. Has the full function of a manual shift step. I also asked them about using it with a turbo setup and they asked me why didn't the Turbo Manufacture didn't write a program for the auto. If they are saying its a Complete System. Why did they leave off the Tranny. For ESS Tuning not working with your setup can be that very reason. Design to use with ESS S/C. This is a Reason why if u go S/C. I would have Gone Ess Tuning T/S S/C. Due to the fact that it was fully thought through for the auto guys and manuals. But I highly doubt it and should be compatible with others. The Dinan Tech said there will be an improvement over the factory software but not guaranteed to be highly efficient since it was design to use with here stage 1-3 engine software.

ESS Tuning talked to Todd and he was very informative about this software and IMHO...This is the way to go. Does everything that the Dinan Software but its tuned for Boost...


VF told me if any software increases shifting point, it will cause another problem as my engine & tranny should handle extra more power and torque. That also makes sense!

Btw, all of the problem I mentioned above happen when I am in manual or sports mode. If it's in automatic mode, it's ok most of time! However, I may see engine light at any time.

Am I supposed to shift gear on time? My car is automatic. I really can't understand why it doens't shift automatically without any problems.

EX)

1gear --->2 gear almost always ok

2gear --->3 gear sometimes engine signal, now a lot of time (manual> Sd>>> auto)

3gear --> 4th gear many of time, engine signal (Manual>SD>>>>>>>>>auto)

4th gear--->5th gear didn't experience any problem, but it's really scary if I keep pushing my gas pedal


One noticeable fact...

It really happens when I open full throttle when my guage is already pointing toward high rpms..Do u know what I am talking about?


So, if u read my complaints, u should guess it's because of huge increase of torque and horsepower due to supercharger kit!!

For reference, my car now has aftermarket exhaust, and headers!
Anyway, when I install my supercharger kit, there was no aftermarket performance header. Only Rogue engineering exhaust!

One funny thing is the same problem keeps happenining since the first day of supercharger kit on my car. :thumbdwn:

[TrippinBimmer]

^^^ What other problem does VF said it will cause? If they can provide an answer. Why don't they write a program to help out with this problem with there product? Sounds like it wasn't a fully thought out S/C unit. Anyways, I am not surprised it happen in Manual and Sport mode due to that is where VF S/C makes all the power at High RPM range. Reason why your automatic cant shift on time is cause of the program that the BMW has written for it. Not made for boosted Vehicles. You need more Hydraulic Pressure in your Valve Body to put more pressure on the Clutches for a tighter engagement. BTW How much HP are you pushing? Anything more 310-340 on an automatic will cause the clutches to burn up on our transmission from my research. Unless the Transmission is built.

[tblue3cibm]

why do u guys advise against level 10?

[TrippinBimmer]

Anyone else would like to put some of there input on this subject......

[tblue3cibm]

does itp fully rebuild and fortify trannies?

[Bimmer Dude Xi]

does itp fully rebuild and fortify trannies?

Yes they do. They built my tranny for my Eclipse GSX. Notice a huge difference between stock and they're upgrade.

I highly recommend them.

They have a 9 sec Talon TSI AWD doing 9 seconds all day on the same tranny.

[Bimmer Dude Xi]

Anyone else would like to put some of there input on this subject......

So based on everything mentioned, it sounds like a software and mechanical problem.

[eurotekm3]

Supercharger & automatic TRANSMISSION = waste of money

[TrippinBimmer]

So based on everything mentioned, it sounds like a software and mechanical problem.

Well, Its mostly Software. It can be improve and correct his problem. Mechanical problem if he goes over the HP range i told him...

Supercharger & automatic TRANSMISSION = waste of money

:slap: I'm tired of arguing with ignorant people...

[tblue3cibm]

Supercharger & automatic TRANSMISSION = waste of money

:slap:

[Dhohn]

Check my threads about auto tranny re builds, there were 2 people if memory serves right that had level 10 build their bmw tranny's and I wanna say they both didnt hold up very well.

[Yellowmann]

I have AA SC with my Steptronic and it shifts great so far. I use both S and M mode and if I forget to shift in M mode it does it for me like the factory. The only problem so far is the SES code I get since my install and I think its software related. Still working with AA to figure this out.

http://forum.e46fanatics.com/showthread.php?t=538657

I did have some hesitation issues and I just installed new Intake cam sensor and hope it fix the problem. Does VF have software with that kit? Also do you think your XI has to do with the shifting points since its all wheel? Hope you get it fix, I know how frustrating it can get.....

Charlie

[diablorojo]

I have a ESS TS2 kit, also a 2003 330i. I have no major transmission issues and have never thrown a code (except o2 from no cat). I even run nitrous....

[Kwanghyun Chi]

A few months ago, I changed my MAF, cuz my car was out of order apparently.

Then, my ride went back to normal condition except for this issue that I keep mentioning.

Btw, I have no vacumm leak issue, o2 sensor issue. Actually, there may be o2 sensor issue now, but it's more related with my header system. - I admit I have limited knowledge of car engineering. HAHA^^

Anyway, the only way to escape this engine warning code with some sort of fun is..........

1st-2st In manual mode
2st-3rd In manual mode(nowadays depending on my intuition on a particular day especially in this zone!!) or automatic mode
3rd-4th In automatic mode
4th-5th In manual mode

HAHA~

*Facts
In automatic mode, my ride becomes way slower than sports mode.

In sports mode, shifting gear is not smooth, but it works most of time except for 3rd to 4th gear shift. Sometimes, I can see the same problem when I shift from 2nd to 3rd gear.

In manual mode, I have to be carefull especially during 3rd and 4th gear shift. Now, I also have to worry about 2nd to 3rd gear shift when I am in manual mode.

This will be very interesting to hear. For example, let's say I will shift gear from 2nd to 3rd gear. I am now riding in 55mph in 4th gear. Suddenly, I dropped my gear to 2nd gear. The rpm guage will indicate very close to red zone already. When it is time to shift 2nd to 3rd gear, my engine suddenly loose power with wierd sound & engine warning signal. I have to stop my car, and restart my engine. Then, the engine warning signal will be gone, and I will be able to boost up the engine power and go.

---> So, u may think it's because my ride style is wrong. Yeah~ I think it may be. However, don't forget my car is automatic. Why can't it shift automatically? Really due to lack of pressure? Do I need to do something that can upgrade shifting speed? If so, I think I already upgraded my transmission.


The other possible reason might be because of other set-up such as header, cat converter, and high flow exahust. You know what? It had happened even before I installed header and cat converter.

However, when I install my VF supercharger kit, I already had my rogue engineering high flow muffler.


Finally, some might say what about shifting ur gear with my pedal when u open full throttle. HAHA~ I don't usually shift gear with my pedal. I just keep pushing hard even when my gear is shifting. Don't forget again that my car is automatic!! Of course, I tried to shift with my pedal shifting, but it's still not safe!

*What VF guys told me*
1. It's natural thing. You should shift your gear with ur foot.
&
2. No..it should shift smoothly. What u have as ur problem is not common. Something must be wrong. Go to repair shop, and get the error code.
---> I did it. No conclusion yet!


*My purpose of this thread*
I want to equip with a variety of information and knowledge regarding this issue before I visit my local mechanics. Simply, I will drop my car, and ask to fix it. I may have to do something with my transmission. Hm..if that is true, I think it's impossible to resolve this problem based on my previous & the most recent experience at my previous visits.

*Closing statement*

You guys know what?

It's really fun, though! :excited:

With supercharger kit, high RPM 4th gear acceleration is amazing!

From 1st to 4th gear, my ride just go forward like crazy~

And, if my problem can be resolved somehow, I believe people will no longer use manual transmission. That's why people use manual transmission. HAHAHA&&

I am just doing my best to get the most out of it!! It's really fun! I am about to install supercharger camshaft, but I doubt if it will be ok. Hew~I think my ride has at least 310HP with 100 octane. :pimpin:

Any opinion will be appreciated! :thumbsup:

[bmwstephen]

good luck an xi auto transmission can only handle 280lb of torque. I'm surprised its not shitting out metal

[SC98MaximaSE]

superchargers eat auto trannies faster than a kid with bag of oreo. specially if you have a heavy foot !

usually the first thing that goes is the torque convertor as it cant handle the extra torque. the samething happened to me within 10,000 miles of going supercharged. the car would stay in "neutral" for 2-3 seconds before shifting to the higher gear. I admit i had a heavy foot on it too. Eventually 1st and 2nd gear gave out followed by reverse. It will only get worse untill it just gives up on you and doesnt shift into gears at all. All i can tell you is to get a high stall torque convertor or just swap it out to a manual tranny, which is what i did :) dont even bother with softwares or other types of "cures", its not magic, its mechanics.

[mcr_driver]

superchargers eat auto trannies faster than a kid with bag of oreo. specially if you have a heavy foot !

usually the first thing that goes is the torque convertor as it cant handle the extra torque. the samething happened to me within 10,000 miles of going supercharged. the car would stay in "neutral" for 2-3 seconds before shifting to the higher gear. I admit i had a heavy foot on it too. Eventually 1st and 2nd gear gave out followed by reverse. It will only get worse untill it just gives up on you and doesnt shift into gears at all. All i can tell you is to get a high stall torque convertor or just swap it out to a manual tranny, which is what i did :) dont even bother with softwares or other types of "cures", its not magic, its mechanics.

+1 know the limits of your tranny and either A don't push them mechanically or B get a new tranny that can handle the power you wanna put down. be it 2 pedals or 3 :thumbsup:

[Sean@VF-Engineering]

^^^ What other problem does VF said it will cause? If they can provide an answer. Why don't they write a program to help out with this problem with there product? Sounds like it wasn't a fully thought out S/C unit. Anyways, I am not surprised it happen in Manual and Sport mode due to that is where VF S/C makes all the power at High RPM range.

Because our SuperCharger systems do not involve the transmission ECU, we would have no explanation of why your transmission does not shift as desired.

Luckily it sounds as if the product itself is working to spec and maybe the transmission might be on it's last leg.

These systems as fully engineered to provide excellent power and reliability, if you think other wise, you would be Trippin!

Thanks!
-Sean

[TrippinBimmer]

Because our SuperCharger systems do not involve the transmission ECU, we would have no explanation of why your transmission does not shift as desired.

Luckily it sounds as if the product itself is working to spec and maybe the transmission might be on it's last leg.

These systems as fully engineered to provide excellent power and reliability, if you think other wise, you would be Trippin!

Thanks!
-Sean

Edit:...The SuperCharger System does involve the Transmission to put down the new HP/Tq to the ground. If the Transmission is involved so is the Brain of the Transmission.


Hey, if it was fully engineered (for the auto guys) we wouldn't have this problem. Knowning the limits of the drivetrain with max performance would have been greatly appreciated. What do you expect with a stage 1 kit. Stage 1 usually is a plug and play Without drivetrain problems. But people are having problem with the Tranny after they install the S/C.. Then have to spend more money to upgrade/fix the tranny. All I am saying more thought should have gone into the Auto Drivetrain and working with it's ECU for the Fine Tuning and etc...

Thanks and have a nice day
Anthony

[SC98MaximaSE]

Edit:...The SuperCharger System does involve the Transmission to put down the new HP/Tq to the ground. If the Transmission is involved so is the Brain of the Transmission.


Hey, if it was fully engineered (for the auto guys) we wouldn't have this problem. Knowning the limits of the drivetrain with max performance would have been greatly appreciated. What do you expect with a stage 1 kit. Stage 1 usually is a plug and play Without drivetrain problems. But people are having problem with the Tranny after they install the S/C.. Then have to spend more money to upgrade/fix the tranny. All I am saying more thought should have gone into the Auto Drivetrain and working with it's ECU for the Fine Tuning and etc...

Thanks and have a nice day
Anthony


No offense but what you're saying makes no sense. Typical auto trannies are not meant for perfomance. Any time you add more power to an engine, you put more stress on the drivetrain, regardless if its 20hp or a stage 1 kit. The number one killer of an auto tranny is HEAT followed by excessive downshifting, those are your two limits right there. Even a bone stock vehicle needs a tranny rebuild after a certain amount of miles, let alone a boosted. No offense but in defense of VF Engineering, i have said this many times and will say this again; FI is NOT a bolt on CAI, anyone that choses to go FI (specially one with an auto tranny) must be very well aware of the consequnes and take full responsibility for whatever happens.

[TrippinBimmer]

No offense but what you're saying makes no sense. Typical auto trannies are not meant for perfomance. Any time you add more power to an engine, you put more stress on the drivetrain, regardless if its 20hp or a stage 1 kit. The number one killer of an auto tranny is HEAT followed by excessive downshifting, those are your two limits right there. Even a bone stock vehicle needs a tranny rebuild after a certain amount of miles, let alone a boosted. No offense but in defense of VF Engineering, i have said this many times and will say this again; FI is NOT a bolt on CAI, anyone that choses to go FI (specially one with an auto tranny) must be very well aware of the consequnes and take full responsibility for whatever happens.

I know what you are saying...My point is that they should have thought something about the auto tranny...Maybe bigger Cooler for the Tranny? Software? etc...I know that Auto have there limits but most of the time the auto can stand up to F/I in stock form...

[SC98MaximaSE]

Softwares and tranny coolers dont cheat physics, they just slow down the abuse/stress process in SOME cases. Auto can only stand up to F/I for so long before it gives out. It 100% depends on driving style of the person. VF seems to be using centrifugal type S/C's, so if you ask me, as long as you keep it under 2.5k RPM, you would HARDLY put any extra stress on the drivetrain over a stock engine.

[TrippinBimmer]

Softwares and tranny coolers dont cheat physics, they just slow down the abuse/stress process in SOME cases. Auto can only stand up to F/I for so long before it gives out. It 100% depends on driving style of the person. VF seems to be using centrifugal type S/C's, so if you ask me, as long as you keep it under 2.5k RPM, you would HARDLY put any extra stress on the drivetrain over a stock engine.

Yes, and the s/c unit will probably do nothing at all...so then its worthless to have a s/c. Yes, I know it cheats physics but its worth it...I had a Jeep Wrangler with a 2.5L with an auto. It had 37" tires and 4.88. After boosting it at 8lbs of boost I was getting 215 WHP...How I was driving it was stupid. All it had is ATF +4 and Cooler. When RockKrawling, Drag Strip and Punching it all the time. Then the motor blew up... The tranny was in top notch. It's a 30 RH. Not one of those trannys you would like boosted or have big tires.

[SC98MaximaSE]

Yes, and the s/c unit will probably do nothing at all...so then its worthless to have a s/c.

my point exactly, some people just like the title of being Supercharged, this is a good remedy for them :str8pimpi

my rule of thumb is, if you're auto, be prepared to do tranny work if you want to go boosted. if you're stick, you have plenty of room after a clutch upgrade :)

[TrippinBimmer]

my point exactly, some people just like the title of being Supercharged, this is a good remedy for them :str8pimpi

my rule of thumb is, if you're auto, be prepared to do tranny work if you want to go boosted. if you're stick, you have plenty of room after a clutch upgrade :)

Haha...I'm glad we agree on something..hehe

Yes, I will agree with your last statement...I just wish the S/C company have options on upgrading your Tranny or what ever it needs to run properly. Instead of selling you a product and don't worry about the rest of the drivetrain. Like HPF, They thought of almost everything you can do to the Drivetrain, Traction Control, Clutch and etc...This is one many reason I will be going with them. Cause it is full thought out and don't leave you hanging guessing what is the problem.

[idcp]

Haha...I'm glad we agree on something..hehe

Yes, I will agree with your last statement...I just wish the S/C company have options on upgrading your Tranny or what ever it needs to run properly. Instead of selling you a product and don't worry about the rest of the drivetrain. Like HPF, They thought of almost everything you can do to the Drivetrain, Traction Control, Clutch and etc...This is one many reason I will be going with them. Cause it is full thought out and don't leave you hanging guessing what is the problem.

building a good automatic transmission to fit our cars would be costly and would probably take a complete redesign. it would be hard to fit all the components into the stock case also. if they could find a way to fit a m5 tranny or a new m3 tranny in a e46 then it would work just fine, cause the cars are made for 400 whp. and so are the trannies

[benjamin1]

what