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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 11-15-2010, 09:57 AM   #1
IBM
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Supercharger/Turbo kits?

I've been searching the web and a few forum sites but can not find the answer I'm looking for. Is there any company that sells a turbo/supercharger kit for a 2004 325xi? Most of things things I've seen discussed or on websites have been for the ci ... etc etc. Any guidance would be greatly appreciated.

Last edited by IBM; 11-15-2010 at 09:58 AM.
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Old 11-15-2010, 10:51 AM   #2
kawracerx
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Aa makes a supercharger kit for the xi at 8psi I believe, don't quote me but think you gain 75hp.and offer automatic trans tune to help hold the power better by increasing fluid pressure and other small things.no turbo kits unless you fab up yourself and will cost lots and lots of money, and not worth it for xi because it can only handle so much power due to transfer case.hope that helped,i want the supercharger for myself but just expensive.

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Old 11-15-2010, 12:34 PM   #3
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The transfer case will be fine. It's a constant meshed planetary gear system, I'm sure it can handle the load from a supercharger. The rumored (or whatever) spec limit on the transfer case is very close to the output of the 3.0L 330xi engine which seems like a dumb move on BMW's part, you don't make a part that walks that close to the line for failure hence why I don't think it's true.

I would be more concerned with the transmission, clutch, differential, brakes, suspension, tires, cooling, belts, and all that stuff before the transfer case...

Lastly, don't waste your money on supercharging your 325xi IMO. If you want power, sell it and get an M3. It's designed for that power from the get go and you don't have to mess around with changing/maintaining it.
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Old 11-15-2010, 02:55 PM   #4
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my friendly BMW Dealer Parts Guy, told me that he heard the S/C's don't work good in the winter. I don't know if it's true for all S/C kits or just some though... (I had a supercharged big block a few years ago, and it ran fine in the winter)
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Old 11-15-2010, 03:25 PM   #5
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I dunno why it wouldn't run well in the winter... I know turbos don't run so well in the winter when they are still cold, but they're ok when they come up to temp. maybe the same when it comes to superchargers?
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Old 11-16-2010, 12:32 PM   #6
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Originally Posted by theviking View Post
my friendly BMW Dealer Parts Guy, told me that he heard the S/C's don't work good in the winter. I don't know if it's true for all S/C kits or just some though... (I had a supercharged big block a few years ago, and it ran fine in the winter)
I have ehard from numerous persons that they so not work wel in cold enviornments either...fluid circulation problems....
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Old 11-16-2010, 01:37 PM   #7
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Old 11-16-2010, 02:32 PM   #8
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It's the front diff/axles you should be worried about with the F/I. Dumping the clutch from 4.5k (slipping it a little to keep the revs up) will destroy your front drive train. You will need an upgraded clutch to be able to slip it off the launches so you don't bog. That is how my xi ended up RWD. I ruined my front diff and got sick of tearing the front end out of the car to fix stuff. The T case will be fine, the front/rear half shafts will be fine. But that front diff being up against the block gets way too hot. Going F/I is one thing, driving the car the way it should be driven without breaking stuff is another. GL with whatever you decide to do.
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Old 12-05-2010, 12:54 AM   #9
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Originally Posted by theviking View Post
my friendly BMW Dealer Parts Guy, told me that he heard the S/C's don't work good in the winter. I don't know if it's true for all S/C kits or just some though... (I had a supercharged big block a few years ago, and it ran fine in the winter)
Hey that's me...what's up Gunnar? Anyway, had a buddy with a FI'd lexus and another with a FI'd E36 M3, both running vortechs. Both were warned about running in cold weather and Vortech even has listed in their limited warranty as one of the requirements as to not void the warranty, Subjecting any Vortech supercharger to a "cold start-up" condition (below 25° F) without the
use of an engine block heater/aftermarket engine blanket


Centrifugal blowers need to be heated up so the blower gets properly lubed up otherwise it will/can freeze. There are other blowers that have their own oil supply in which cold weather probably won't be such an issue.(roots style)

I wouldn't personally even bother with going FI in an iX.
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Old 12-06-2010, 07:06 PM   #10
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Hi Ed,

I can't believe you spelled it iX, but I will have to forgive you, since you hook me up all the time when it comes to parts...

(FYI Fanatics; Ed is a customer oriented parts guy, the kind that makes me call the dealership first, when I need parts! If you are not too far from Grand Blanc Motorcars in MI, def. give him a call if you need OEM parts...)

Anyway, I'm still tempted to get the OEM cam kit. Looks like the general consensus is that the supercharger has too many potential issues, for a winter driven AWD car.

(Or maybe I need to figure out how to not spend all my money on sailing, so I can get a Lotus for the summerfun... )

/



Quote:
Originally Posted by egk2 View Post
Hey that's me...what's up Gunnar? Anyway, had a buddy with a FI'd lexus and another with a FI'd E36 M3, both running vortechs. Both were warned about running in cold weather and Vortech even has listed in their limited warranty as one of the requirements as to not void the warranty, Subjecting any Vortech supercharger to a “cold start-up” condition (below 25° F) without the
use of an engine block heater/aftermarket engine blanket


Centrifugal blowers need to be heated up so the blower gets properly lubed up otherwise it will/can freeze. There are other blowers that have their own oil supply in which cold weather probably won't be such an issue.(roots style)

I wouldn't personally even bother with going FI in an iX.
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Old 12-06-2010, 10:19 PM   #11
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Hi Ed,

I can't believe you spelled it iX, but I will have to forgive you, since you hook me up all the time when it comes to parts...

(FYI Fanatics; Ed is a customer oriented parts guy, the kind that makes me call the dealership first, when I need parts! If you are not too far from Grand Blanc Motorcars in MI, def. give him a call if you need OEM parts...)

Anyway, I'm still tempted to get the OEM cam kit. Looks like the general consensus is that the supercharger has too many potential issues, for a winter driven AWD car.

(Or maybe I need to figure out how to not spend all my money on sailing, so I can get a Lotus for the summerfun... )

/

sorry bout the iX thing, comes from my e30 days...let me know if you need anything...
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Old 11-15-2010, 03:27 PM   #12
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Old 11-15-2010, 04:04 PM   #13
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Old 11-15-2010, 05:43 PM   #14
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hey; I'm just commenting on anything halfway interesting, to get my thread count up, so I can be as awesome as ........ my car!

but, you're right! S/C's have been covered, this post got me interested, and I just searched a bit...

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Old 11-16-2010, 12:14 PM   #15
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do not go supercharger on and Xi! the car is not designed to handle that kind of Hp or torque! especially the transmission...the planetary gears wil strip, the differtential will strip. The entire drivetrain is NOT designed to handle that kind of power. I have a close freind here in NOLA, this gentleman is aged beyond me( i am 38) and has been racing since he was 18. He is from Bavaria...has owned a repair shop here for 20+ yrs, -is german and is a plethura of information! He also was a Formula One mechanic for quite sometime, started racing in Germany when he was 18, worked in a high performance auto shop in Miami during the 1980-(near thunder alley) This guy knows BMW, Audi, VW and Mercedes,Porsche like no other!!!!!. I asked him about a Super Chrger for my Xi and he looked at me with the most sarcastic respnses I ever heard! LOL.." zee xi is for AWD! not vor 2wd..racing!!!!"
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Old 12-05-2010, 02:24 AM   #16
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do not go supercharger on and Xi! the car is not designed to handle that kind of Hp or torque! especially the transmission...the planetary gears wil strip, the differtential will strip. The entire drivetrain is NOT designed to handle that kind of power. I have a close freind here in NOLA, this gentleman is aged beyond me( i am 38) and has been racing since he was 18. He is from Bavaria...has owned a repair shop here for 20+ yrs, -is german and is a plethura of information! He also was a Formula One mechanic for quite sometime, started racing in Germany when he was 18, worked in a high performance auto shop in Miami during the 1980-(near thunder alley) This guy knows BMW, Audi, VW and Mercedes,Porsche like no other!!!!!. I asked him about a Super Chrger for my Xi and he looked at me with the most sarcastic respnses I ever heard! LOL.." zee xi is for AWD! not vor 2wd..racing!!!!"
lol cool story bro. wow i actually took the time to read the whole story.
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Old 11-20-2012, 08:38 PM   #17
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Originally Posted by SILVRRONIN View Post
do not go supercharger on and Xi! the car is not designed to handle that kind of Hp or torque! especially the transmission...the planetary gears wil strip, the differtential will strip. The entire drivetrain is NOT designed to handle that kind of power. I have a close freind here in NOLA, this gentleman is aged beyond me( i am 38) and has been racing since he was 18. He is from Bavaria...has owned a repair shop here for 20+ yrs, -is german and is a plethura of information! He also was a Formula One mechanic for quite sometime, started racing in Germany when he was 18, worked in a high performance auto shop in Miami during the 1980-(near thunder alley) This guy knows BMW, Audi, VW and Mercedes,Porsche like no other!!!!!. I asked him about a Super Chrger for my Xi and he looked at me with the most sarcastic respnses I ever heard! LOL.." zee xi is for AWD! not vor 2wd..racing!!!!"
no.



I ran a 9 psi supercharger with water meth on my xi, did not like it, however car had no issues handling the power. I would recommend some headers with sport cats as a nice power mod.
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Old 11-16-2010, 12:28 PM   #18
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He then went on a verbal tangient with me for twenty minutes as to why the automobile needs a proper foundation of equiptment-sensitivity-that is prepared to handle the HP...and he made alot of sense. he said " all dezz kids-ripping out exhausts-bigger vheeeels-intakes!" thats why they have zsssoooooooo many problems! bigger vheeels cause ball joint problems,control arm problems,bushings wear out faster!!! 22" rims on a car designed for 16' or 17'' rims! not omly do sheyy loook stupid... the transmissions vill vhere away! You strip the gears, the larger the diameter the more power it takes to rotate the rim around!!! you wil eventually tear apart the CV joints...everything ruined....the improper balancing, steering units will fail! control arms will need be replaced too, alignments,........ intakes will in time sandblast the MAFS and you wil buy a new one for $300+!!! you can upgrade but not contradict the engineering design of the automobile! Now you say a supercharger???? imagine what the transmission wil look like after 5000 miles with the constant reving of rpms for a car that comes stock to handle 185 HP! He went on and i listened...he was 100% right. Want to have HP? purchase a car that is desined to handle and deliver it...a M3! or purchase the proper equiptment to do it!!! lotsa $$$$$.
If you want to play...... you GOTTA PAY!
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Old 12-05-2010, 02:15 AM   #19
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He then went on a verbal tangient with me for twenty minutes as to why the automobile needs a proper foundation of equiptment-sensitivity-that is prepared to handle the HP...and he made alot of sense. he said " all dezz kids-ripping out exhausts-bigger vheeeels-intakes!" thats why they have zsssoooooooo many problems! bigger vheeels cause ball joint problems,control arm problems,bushings wear out faster!!! 22" rims on a car designed for 16' or 17'' rims! not omly do sheyy loook stupid... the transmissions vill vhere away! You strip the gears, the larger the diameter the more power it takes to rotate the rim around!!! you wil eventually tear apart the CV joints...everything ruined....the improper balancing, steering units will fail! control arms will need be replaced too, alignments,........ intakes will in time sandblast the MAFS and you wil buy a new one for $300+!!! you can upgrade but not contradict the engineering design of the automobile! Now you say a supercharger???? imagine what the transmission wil look like after 5000 miles with the constant reving of rpms for a car that comes stock to handle 185 HP! He went on and i listened...he was 100% right. Want to have HP? purchase a car that is desined to handle and deliver it...a M3! or purchase the proper equiptment to do it!!! lotsa $$$$$.
If you want to play...... you GOTTA PAY!
This is an informative rant. Interesting comment about the CV joints.
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Old 11-21-2012, 12:22 AM   #20
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He then went on a verbal tangient with me for twenty minutes as to why the automobile needs a proper foundation of equiptment-sensitivity-that is prepared to handle the HP...and he made alot of sense. he said " all dezz kids-ripping out exhausts-bigger vheeeels-intakes!" thats why they have zsssoooooooo many problems! bigger vheeels cause ball joint problems,control arm problems,bushings wear out faster!!! 22" rims on a car designed for 16' or 17'' rims! not omly do sheyy loook stupid... the transmissions vill vhere away! You strip the gears, the larger the diameter the more power it takes to rotate the rim around!!! you wil eventually tear apart the CV joints...everything ruined....the improper balancing, steering units will fail! control arms will need be replaced too, alignments,........ intakes will in time sandblast the MAFS and you wil buy a new one for $300+!!! you can upgrade but not contradict the engineering design of the automobile! Now you say a supercharger???? imagine what the transmission wil look like after 5000 miles with the constant reving of rpms for a car that comes stock to handle 185 HP! He went on and i listened...he was 100% right. Want to have HP? purchase a car that is desined to handle and deliver it...a M3! or purchase the proper equiptment to do it!!! lotsa $$$$$.
If you want to play...... you GOTTA PAY!
I definitely want to meet this man.
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