Achieving 300whp with a 323?

[Rayce185]

So since there is a 500whp thread for M3's, I was wondering if there was any possibility to get 300whp for our smallest 6bangers.
I was planning to go with the TS2 and the ESS cams, I already have a full catback and and intake (probably irrelevant after SC'ing). The TS2 should do 315hp at the crank, so how much would that be to the wheels? And what mods could I do to get the magical number?

I guess this thread would be interesting for any 323 owner, so let's hear it!

[4ngie]

http://www.autospies.com/images/users/MookGmbH/e46m3engine.jpg

[win-by-miles]

http://www.autospies.com/images/users/MookGmbH/e46m3engine.jpg

i love you

[Penguin Koolaid]

So since there is a 500whp thread for M3's, I was wondering if there was any possibility to get 300whp for our smallest 6bangers.
I was planning to go with the TS2 and the ESS cams, I already have a full catback and and intake (probably irrelevant after SC'ing). The TS2 should do 315hp at the crank, so how much would that be to the wheels? And what mods could I do to get the magical number?

I guess this thread would be interesting for any 323 owner, so let's hear it!
315 @ crank is roughly 275 @ wheels.

[Rayce185]

315 @ crank is roughly 275 @ wheels.So I'd guess with cams and maybe a .5 higher boost it would be 300whp then?

[Penguin Koolaid]

So I'd guess with cams and maybe a .5 higher boost it would be 300whp then?
I dont' know a lot about forced induction other than how it works. For better answers, you might conisder having this thread moved to the FI section. There are some pretty knowledgeable people there.

[Rayce185]

No mods online :(

[dmoeller17]

So since there is a 500whp thread for M3's, I was wondering if there was any possibility to get 300whp for our smallest 6bangers.
I was planning to go with the TS2 and the ESS cams, I already have a full catback and and intake (probably irrelevant after SC'ing). The TS2 should do 315hp at the crank, so how much would that be to the wheels? And what mods could I do to get the magical number?

I guess this thread would be interesting for any 323 owner, so let's hear it!

your doubling the hp of the of the stock motor. i would be worried about the bottom end, transmission, rear-end, etc...

i've broken the stock rearend and axle's on my fox body with the new motor and sticky tires. then broke the trans, fried the clutch, and twisted the driveshaft... i'd be very careful

[Jeuprx-8]

I have 206.7 whp out of my 325ci NA on a dynojet. I figure after a supercharger, I can easily be at 360 bhp or about 310 whp.:idea:... and that is at about 7 to 8 PSI.

[bimmerboy7]

if you're trying to get that much power...look into a turbocharger...but like mention above pursue with caution. though you are in an "ultimate driving machine", the car was not designed for that much power through its stock drivetrain. that's why they made the m3, to be able to withstand all that power. personally i've had a change of heart with mods, i'm more interested in the handling of the car rather than the amount of power i can lay down w/o blowing my motor. that being said, i do have some mods to my engine but don't see the real purpose trying to push my car to the point where it's going to start costing a lot (repairing broken parts). just my .02

[Rayce185]

Having to replace drivetrain parts is obviously also part of the procedure, but doesn't really have anything to do with getting more HP to the wheels, it just prevents anything to break :rofl:

Jeuprx-8... You get 206whp just from Intake, headers and pulleys? because those are the only things I see engine related in your sig...

[CJPatel]

It would funny to be walked by a 323ci, in my M.

I have always wondered if a 323-330 could be boosted or FI'ed enough to beat M3s.

[malina]

Option 1. SC boosting atleast 8PSI+Headers+FI Cams should make your 323 achieve a 300WHP goal.
Option 2. ESS TS3

[Jeuprx-8]

Having to replace drivetrain parts is obviously also part of the procedure, but doesn't really have anything to do with getting more HP to the wheels, it just prevents anything to break :rofl:

Jeuprx-8... You get 206whp just from Intake, headers and pulleys? because those are the only things I see engine related in your sig...

intake
headers
no cats
pullies
lightweight flywheel/clutch
tse3 exhaust
AA software

Thats it... I baselined at 162 or so whp stock, which is higher than average... our Z4 was only at 150 whp and it has the same engine. I was at 189 on a mustang dyno, but those read low. The car only has 25k miles on it, but that doesn't really make a differance.

[bjstclair]

i wouldn't buy a new intake without reinforcing the subframe first....

[Boosted_ZHP]

It would funny to be walked by a 323ci, in my M.

I have always wondered if a 323-330 could be boosted or FI'ed enough to beat M3s.


I used to walk m3s with my ZHP. It had an AA c-38 stg1, AA Headers, AA exhaust and 3.64 gearing.

Any TS 330 will do it, and a c38 stg 2 also.

328's could do it but would need a little more power.

[4ngie]

i love you
:luv:

[Rayce185]

Since I can forget about getting new exhaust headers (due to legal restrictions) I am planning to go along with this:

-ESS TS2 with .5psi boost increase
-ESS FI cams
-catback exhaust (already installed)
-Sinter metal clutch
-aluminium flighwheel


I'd guess I'd get 10-15bhp more through the higher boost and around 15-20bhp from the cams?

[kevinterkelsen]

Hi,

just had ESS do their magic on my e39 523i - probably close to your 323/325i setup. The tranny, rear dif, driveshaf, etc can handle the 300whp. I'm running 11,5 psi and have app. 355 hp at the wheel and app. 420 at the crank - no problems at all.

However, I got the pistons from the TS 3 kit to handle the extra boost - maybe that could be aviable route for you as well?

[2000_328CI]

i just don't see a reason to throw tons of cash to get a little more power... if i ever REALLLLLY wanted to go faster, I would sell the 328 and step up to an m... would be far cheaper than trying to get my 328 to keep up with an m in the long run (and would cause far fewer headaches)

[Rayce185]

i just don't see a reason to throw tons of cash to get a little more power... if i ever REALLLLLY wanted to go faster, I would sell the 328 and step up to an m... would be far cheaper than trying to get my 328 to keep up with an m in the long run (and would cause far fewer headaches)Erm... you do know that a 323 has 170bhp stock, and that "only" 5k more will give you 315 with the TS2? That is about a 85-90% increase for a third of the cars price. I don't see that being unreasonable.

Plus: M3's are horrendous in insurance and tax fees here, so just modding a 323 is really the way to go. And they are cheaper to mod ;)

[Rayce185]

Hi,

just had ESS do their magic on my e39 523i - probably close to your 323/325i setup. The tranny, rear dif, driveshaf, etc can handle the 300whp. I'm running 11,5 psi and have app. 355 hp at the wheel and app. 420 at the crank - no problems at all.

However, I got the pistons from the TS 3 kit to handle the extra boost - maybe that could be aviable route for you as well?Wow that's really a lot!
I was planning to get a new flywheel anyways, since I want the car to rev faster, so I might aswell get a sinter metal clutch while I'm at it. I heard organic/carbon clutches are not as reliable.

BTW I forgot to add that I might get pulleys too, that should give a few more hp to the bundle...?

[malina]

New pulleys should be included in your SC kit. Upgrade a flywheel with a clutch at the same time and save on labor.
Erm... you do know that a 323 has 170bhp stock, and that "only" 5k more will give you 315 with the TS2? That is about a 85-90% increase for a third of the cars price. I don't see that being unreasonable.

EDIT: 5k EUR or 7k USD

[Rayce185]

New pulleys should be included in your SC kit. Upgrade a flywheel with a clutch at the same time and save on labor.

EDIT: 5k EUR or 7k USDFor a comparison: I just saw an S54 on ebay with 70000km for over 5300EUR... And I'd have to get a new trans, drivetrain, brakes etc...

[russ330]

i just don't see a reason to throw tons of cash to get a little more power... if i ever REALLLLLY wanted to go faster, I would sell the 328 and step up to an m... would be far cheaper than trying to get my 328 to keep up with an m in the long run (and would cause far fewer headaches)

Different strokes for different folks, some could say that they don't understand adding aggressive aesthetic mods, but not having the power to back it up. :dunno:<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
<o:p></o:p>

Really slapping on a supercharger to a 330 will get you close to M3 speed (and some kits faster than I'm sure) and allow a person to keep a car that they may have already invested thousands of dollars in mods in.<o:p></o:p>
<o:p></o:p>

As for the OP I would contact ESS directly to see what they can do. I know one of their higher end TS kits basically converts the 2.5L engines into 3.0L engines and then adds the TS to it. That thing would have to be faster than an M3.

[Rayce185]

Different strokes for different folks, some could say that they don't understand adding aggressive aesthetic mods, but not having the power to back it up. :dunno:<o:p></o:p>
<o:p></o:p>

Really slapping on a supercharger to a 330 will get you close to M3 speed (and some kits faster than I'm sure) and allow a person to keep a car that they may have already invested thousands of dollars in mods in.<o:p></o:p>
<o:p></o:p>

As for the OP I would contact ESS directly to see what they can do. I know one of their higher end TS kits basically converts the 2.5L engines into 3.0L engines and then adds the TS to it. That thing would have to be faster than an M3.I don't really want to compare myself to an M3 since I see it as a different class of car (quality and technologically), but I have set myself to achieve the magical 300whp benchmark with my current ride. Of course this is to be achieved with the smallest expense as possible, so I'd guess increasing the stroke to get 3.0L would be a bit more pricey aswell. Problem is that we have pretty tight restrictions over here that I have to cope with, or find the proper people to get everything registered with :4ngie:

[Dirtboy]

Since I can forget about getting new exhaust headers (due to legal restrictions) I am planning to go along with this:

-ESS TS2 with .5psi boost increase
-ESS FI cams
-catback exhaust (already installed)
-Sinter metal clutch
-aluminium flighwheel


I'd guess I'd get 10-15bhp more through the higher boost and around 15-20bhp from the cams?


Legal restrictions? You have to go through TÜV? Aren't there any TÜV approved headers out there?




BTW I forgot to add that I might get pulleys too, that should give a few more hp to the bundle...?

You'll have to be careful with the pulleys. When I installed my TS2+, my UUC pulleys wouldn't fit with the idler pulley bracket that came with my TS2+.

[Rayce185]

Legal restrictions? You have to go through TÜV? Aren't there any TÜV approved headers out there?





You'll have to be careful with the pulleys. When I installed my TS2+, my UUC pulleys wouldn't fit with the idler pulley bracket that came with my TS2+.
If you can find me a good set of headers with sport cats that are actually street legal, that'd be pretty sweet :D
Wie hast du das TS2+ zugelassen bekommen? Einzelabnahme? Und wie teuer?


Don't ESS have their own pulleys?

[2000_328CI]

some could say that they don't understand adding aggressive aesthetic mods, but not having the power to back it up. :dunno:

ZIIIIIINNNGERRRRRR :bawling:

yeah i fully agree bud. I am not against doing it, I just see the cost and could never justify it to myself. So, instead of just admitting that I'm a cheap-o, i would rather say that i see it as a silly investment :rofl:

I'm such a bastard:P

[Rayce185]

ZIIIIIINNNGERRRRRR :bawling:

yeah i fully agree bud. I am not against doing it, I just see the cost and could never justify it to myself. So, instead of just admitting that I'm a cheap-o, i would rather say that i see it as a silly investment :rofl:

I'm such a bastard:PBut selling your current car and buying an M isn't much cheaper... especially the running costs would be an overkill :dunno:

[Dirtboy]

If you can find me a good set of headers with sport cats that are actually street legal, that'd be pretty sweet :D
Wie hast du das TS2+ zugelassen bekommen? Einzelabnahme? Und wie teuer?


Don't ESS have their own pulleys?

I thought the SuperSprint stuff has TÜV approval? I might be wrong. I have the Technik gen2 headers, which are definatley not TÜV approved, but I also don't have to go through the TÜV inspection. I also have the SuperSprint race cats, I thought those were legal over here...:hmm:

I don't think ESS has pulleys. But I also saw that they changed the idler pulley bracket on the newer kits, maybe pulleys will fit on those..

[2000_328CI]

But selling your current car and buying an M isn't much cheaper... especially the running costs would be an overkill :dunno:
running costs of a boosted 323 will far exceed that of an M if you ask me... boosting a 323 to the extent you are considering will require a whole lot of TLC

[Rayce185]

I thought the SuperSprint stuff has TÜV approval? I might be wrong. I have the Technik gen2 headers, which are definatley not TÜV approved, but I also don't have to go through the TÜV inspection. I also have the SuperSprint race cats, I thought those were legal over here...:hmm:

I don't think ESS has pulleys. But I also saw that they changed the idler pulley bracket on the newer kits, maybe pulleys will fit on those..I didn't know SuperSprint made headers, only catbacks etc :dunno: I'll check into that. Why don't you have to go to TÜV? Do you have a "friend" that does the approval for you? ;)

How about the TSS Kit? Did you get any TÜV certificate for that?

running costs of a boosted 323 will far exceed that of an M if you ask me... boosting a 323 to the extent you are considering will require a whole lot of TLCNot sure. Of course wear and tear will increase, but that is normal...

[AntB]

Why not stroke the engine to 3.0 first and then get FI later? You'd be better off in the end I think...

/don't shoot me

[malina]

I'd like to know opinions of those who achieved a 300WHP goal in 323/325.

[Rayce185]

Why not stroke the engine to 3.0 first and then get FI later? You'd be better off in the end I think...

/don't shoot meWhat would have to be changed? How much would that cost?

[Rayce185]

Oh and the Supersprint headers are not for street use: http://www.supersprint.info/englisch/homeuk.htm

Correct reading of symbols: http://www.supersprint.info/englisch/images/quagia.gif - For racing use only

[Dirtboy]

I didn't know SuperSprint made headers, only catbacks etc :dunno: I'll check into that. Why don't you have to go to TÜV? Do you have a "friend" that does the approval for you? ;)

How about the TSS Kit? Did you get any TÜV certificate for that?


My car is US spec so I don't have to go through TÜV. I do have to have an inspection every year, but it's not as strict as TÜV. But they still check the exhaust for how loud it is. No louder than 95db.:eeps:


ESS has said that they were trying to get TÜV approval for their TS kits. I guess it takes a long time...:rolleyes:


Oh and the Supersprint headers are not for street use: http://www.supersprint.info/englisch/homeuk.htm

Crap. I didn't see that, sorry.:bawling:

[AntB]

My car is US spec so I don't have to go through TÜV. I do have to have an inspection every year, but it's not as strict as TÜV. But they still check the exhaust for how loud it is. No louder than 95db.:eeps:


Hamaan sells stroker kits, I am not aware of the price. Please contact them...
http://www.hamann-motorsport.de/

[Morten M]

I am considering the twinscrew kit from ESS as well and I have a 323 ci.

It would cost me about 110k USD for a 2001 M3 but in the end it would
probably be the right thing to do.. :P

[beanfree]

It would funny to be walked by a 323ci, in my M.

I have always wondered if a 323-330 could be boosted or FI'ed enough to beat M3s.

My car is faster than a M with exhaust, intake and chip. I am putting out 308 hp, 249 tq to the wheels on a mustang though (M3's with exhaust, intake and chip put out about 282 hp, 225 tq on same dyno) and have a whole heap of weight reducing and power mods.

[e popa]

It would funny to be walked by a 323ci, in my M.

I have always wondered if a 323-330 could be boosted or FI'ed enough to beat M3s.

Maybe you already have and just didnt know it.:eeps:

[rg1bmw]

A 323 can easily go over 300HP. My 323 last year was in that range. :str8pimpi

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Wish I had never sold it now.

But I am now at 400HP and going to 500HP on my Jag S-type R

This car stock will take current stock BMW M3's! :str8pimpi
Need the Stage 3 upgrade to 500HP to run with the 2008 M3 :bow:

[rg1bmw]

A 323 can easily go over 300HP. My 323 last year was in that range. :str8pimpi

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Wish I had never sold it now.

But I am now at 400HP and going to 500HP on my Jag S-type R

This car stock will take current stock BMW M3's! :str8pimpi
Need the Stage 3 upgrade to 500HP to run with the 2008 M3 :bow:

[Rayce185]

A 323 can easily go over 300HP. My 323 last year was in that range. :str8pimpi


Wish I had never sold it now.

But I am now at 400HP and going to 500HP on my Jag S-type R

This car stock will take current stock BMW M3's! :str8pimpi
Need the Stage 3 upgrade to 500HP to run with the 2008 M3 :bow:


Are you sure you mean whp and not bhp? 300bhp is easy, but depending on the drivetrain you will have a considerable power loss at the wheels, hence the lower whp... And if you do mean whp, please state how this is easily possible while still having a long lasting car...

[m3mobbin]

MLS headgasket, custom Garret GT30R or GT35R DBB turbo setup, and an AEM Standalone would have much more potential for horsepower and torque available at a lower RPM range. And looking at the prices for the ESS stage 2 and 3, the pricing would be around the same, but the turbo'd car would capable of being A LOT faster. If you are planning on dropping that much money into your car with an TS2+ or TS3 kit it's definitely worth looking in to.

[Activ3]

MLS headgasket, custom Garret GT30R or GT35R DBB turbo setup, and an AEM Standalone would have much more potential for horsepower and torque available at a lower RPM range. And looking at the prices for the ESS stage 2 and 3, the pricing would be around the same, but the turbo'd car would capable of being A LOT faster. If you are planning on dropping that much money into your car with an TS2+ or TS3 kit it's definitely worth looking in to.
On the e46, when using a standalone, don't you lose the functions of the factory cluster?

[russ330]

MLS headgasket, custom Garret GT30R or GT35R DBB turbo setup, and an AEM Standalone would have much more potential for horsepower and torque available at a lower RPM range. And looking at the prices for the ESS stage 2 and 3, the pricing would be around the same, but the turbo'd car would capable of being A LOT faster. If you are planning on dropping that much money into your car with an TS2+ or TS3 kit it's definitely worth looking in to.

I wonder why there's such few turbo'd non-M E46s if it's that cheap and easy. :hmm:

[m3mobbin]

I doubt it, my friend is running a AEM standalone on his e36 M3 and he didn't loose any functions except for the CEL.
On the e46, when using a standalone, don't you lose the functions of the factory cluster?

It's definitely not cheap to build a reliable turbo'd car, but neither is $13,790 for a TS3 kit from ESS. That isn't even including labor which will be at least another 2-3 grand. The TS3 is an awesome kit, but a bit pricey IMO. 369 whp on pump gas is great, but for that kind of money a lot more power can be made with a turbo setup.

For 15k a pretty insane turbo system could be put together, with all the necessary supporting mods and a built bottom end. 500 whp would be easy with that kind of money spent.

I really don't know why many e46 owner's have gone the turbo route, unlike all the turbo'd e36's on bimmerforums. I could guess that most e46 owners have bigger pockets but less time for DIY work and putting together their own turbo kit is too time consuming and there is too much research required, making an off the shelf SC kit an easier option.
I wonder why there's such few turbo'd non-M E46s if it's that cheap and easy. :hmm:

[Rayce185]

Erm... 300whp is enough for me, and I don't want to spend 13K on a TS3 :eek:

As far as I've read here it is very possible to achieve 300whp with a TS2 and a few extra mods, that shouldn't cost 10k.

[malina]

I really don't know why many e46 owner's have gone the turbo route, unlike all the turbo'd e36's on bimmerforums. I could guess that most e46 owners have bigger pockets but less time for DIY work and putting together their own turbo kit is too time consuming and there is too much research required, making an off the shelf SC kit an easier option.

Edit: Supercharger

You don't see that many turboed e46 because there's no off the shelf turbo kit for that car. E36 owners are more lucky in regards to having more FI options from some well-known tuners. Back to the topic: what improvements/mods are required for a SCed 323/325 to reach 300WHP?

[Lucino305]

custom swap a M5 motor in that biotch. ive seen it in a e46 m3. :excited:

[Rayce185]

Edit: Supercharger

You don't see that many turboed e46 because there's no off the shelf turbo kit for that car. E36 owners are more lucky in regards to having more FI options from some well-known tuners. Back to the topic: what improvements/mods are required for a SCed 323/325 to reach 300WHP?I think he was talking about custom turbos. But yes, there are no Turbo kits for non-M's, but sometime back I remember HPF mentioning they were intending to make a kit sometime.

IMO not very useful. Turbos have their biggest boost at high RPM's, and non-M's don't rev as high as M's...

custom swap a M5 motor in that biotch. ive seen it in a e46 m3. :excited:That's 400+ bhp, and the engine is WAY too heavy and will unbalance the whole car, next to the fact that it's much too expensive to do the whole process. No thanks. The E46 you saw was the Hartge ;)

[malina]

I remember HPF mentioning they were intending to make a kit sometime.

Summer 2008? And it's only for 330i/ci.

Turbos have their biggest boost at high RPM's, and non-M's don't rev as high as M's...


You mixed it with Superchargers. Turbos usually reach full boost @3500RPM, SCs @ redline.

[Asbjorn@ESS]

A TS2 with cams/headers and a slight overboost will make 300rwhp. You can order custom ESS TS pulleys from us to get whatever boost you want up to 15-16PSI.

A centrifugal SC will typically reach peak boost at redline, a TS SC will make it at low revs and carry it all the way to redline.

[Rayce185]

A TS2 with cams/headers and a slight overboost will make 300rwhp. You can order custom ESS TS pulleys from us to get whatever boost you want up to 15-16PSI.

A centrifugal SC will typically reach peak boost at redline, a TS SC will make it at low revs and carry it all the way to redline.Unfortunately there are no street legal exhaust headers available that are legal on German roads, So I will have to find another way...

How about increasing the stroke and a minimal increase in boost? Would there have to be any significant changes in the TS2 or it's software when doing both at once? Do you offer something like this for 323's?

And (unfortunately) the most important question: How about ESS and TÜV?

[Activ3]

The only stroke upgrade would be the S52/M54B30 crank, which would require you to also change your pistons. If you were going to do this, might as well just build your motor and boost 20lbs :4ngie

[Rayce185]

The only stroke upgrade would be the S52/M54B30 crank, which would require you to also change your pistons. If you were going to do this, might as well just build your motor and boost 20lbs :4ngieHamann has a kit for this that increases the displacement to 3.2L and increasing the power to ~270bhp. Depending on the price, this may be very interesting...

[malina]

A centrifugal SC will typically reach peak boost at redline, a TS SC will make it at low revs and carry it all the way to redline.

Thanks for correction Asbjorn, this fact slipped out of my mind for some reason. TS is a great alternative to turbo for M54 engines. I'd get one.

Hamann has a kit for this that increases the displacement to 3.2L and increasing the power to ~270bhp. Depending on the price, this may be very interesting...

This may be very expensive, aka TS3 price range, and it's going to be only ~270 BHP :tsk:
And going FI root after Hamann kit installation will be more difficult and more expensive, as you'll have to look for custom setups.

[stang65]

intake
headers
no cats
pullies
lightweight flywheel/clutch
tse3 exhaust
AA software

Thats it... I baselined at 162 or so whp stock, which is higher than average... our Z4 was only at 150 whp and it has the same engine. I was at 189 on a mustang dyno, but those read low. The car only has 25k miles on it, but that doesn't really make a differance.

so you got over 200 hp with only that very nice. I have those same mods with out headers and I have the conforti software. but I have had the head reworked, coils, intake. you think I might be close?

[stang65]

I also will be buying a TS2 next year. I already have a new trans and a new 3.46 diff. so about the only thing that I will have to get is wider rear tires to keep traction

[Allure]

How about you just put an S54, should be cheaper than 5k.

[Rayce185]

and buying a good S54, installing all the extras? Check out what MITE46 had to do additionally to his car when he installed the S54. I bet it would've exceeded the cost of a real M3...

[ewok]

My last dyno was at 290whp. Thats with Techniks St. 3 kit, Headers, and FI cams. I"m only boosting 8lbs. With a smaller pulley and a tune I could hit that 300whp mark. I've been meaning to do this for along time now. Samir knows! But all my cash goes to baby diapers and my wife:) Sooner or later I'll get around to it. Or maybe I'll get those Pistons from ESS and a 330 crank and race every M3 I see till my sub frame rips to shreds!:4ngie:

[malina]

Do you mean that you can't keep up with stock M3 with all your performance mods? Have you got auto or manual tranny?

[Rayce185]

What gas are you running ewok? I will be using Europe's 98 Super plus, and when tracking maybe V-Power 100. I do not know how to convert that to your octane numbers, since you use other calculations, but I fill my car with normal 95 Super here.

It's not about competing to M3's (at least not for me), but to have the number "300whp" to settle my mind :eeps:
If it can be achieved without a TS3, but with a TS2 and some nice mods, then I'm all ears for it.

And what I can summarize from this thread, you will need:
-ESS TS2 @ 8.5psi
-FI Cams
-Headers
-FI pulleys

A new diff (or even LSD) are out of my budget for this year, but I will definately be going with a lighter flywheel. Any ideas what manufacturer to take?

[beanfree]

Do you mean that you can't keep up with stock M3 with all your performance mods? Have you got auto or manual tranny?

M3's are very fast. I don't think the averaged supercharged car has a chance against M3's (unless they have a 3.46 diff.). I have a 3.07 lsd, 390 whp, 310 wtq, 3218 lbs and am very slightly quicker than a lightly modded M3 (exhaust, intake, chip).

[malina]

Wow, with a 100 WHP advantage and over 40TQ your car is just slightly faster??? I guess, FI root for non-M e46 is not that better and cheaper than simply switching to M3. :dunno:

[beanfree]

I am sorry. The whp and wtq figures are a typo. That is supposed to be chp and ctq. But I do have 60 chp and 45 ctq over an M3. 200 lbs weight savings and am barely faster.