E46 M3 forced induction

dallasbboy · #1 (**permalink**) 07-08-2002, 09:45 AM

Has anyone heard of anyone doing this? I'm curious as to how much boost can safely be delivered to the engine.

Brian

SC5-Charles · #2 (**permalink**) 07-08-2002, 01:02 PM

I'm just speculating but high compression (11.3?) with the combination of high rate of failure plus having to retune not one but 2 ecu's (what Karl tells me)... will make this a difficult task. I don't doubt that you can put some boost on it perhaps 5-6psi but I don't think we'll be seeing big turbos or S/C's on these cars.

Charles

///MCubed · #3 (**permalink**) 07-08-2002, 03:14 PM

G-Power has a SC for the E46 M3, but with all the engine failures recently, I would be very worried about installing any type of FI on that engine.

TKM3 · #4 (**permalink**) 07-08-2002, 03:37 PM

Quote:

Originally posted by ///MCubed
G-Power has a SC for the E46 M3, but with all the engine failures recently, I would be very worried about installing any type of FI on that engine.

Are you psychic or what? this venzuelan thing similarity is starting
to freaking creeping the shit out of me...

2002 turbo · #5 (**permalink**) 07-09-2002, 12:24 AM

You'll see forced induction on these cars if people have the imagination to pull their motors down and fit forged low compression pistons and make proper mods to the ECU and fuel system too!

Anyone who boosts a motor with that much compression and thinks it will work deserves a blown and very dead engine in my opinion!

BLOWN3 · #6 (**permalink**) 07-09-2002, 07:58 AM

After all - he drives a BMW 2002 with 400HP and his dad drives a 2002 with 700+ horsepower... both are 2.0L turbos. Thanks for turbocharging my car too

psk145 · #7 (**permalink**) 07-09-2002, 08:25 AM

a 2002 with 700 HP? Good lord!! Please put some pictures up!!!

dallasbboy · #8 (**permalink**) 07-09-2002, 09:41 AM

Quote:

Originally posted by BLOWN3
After all - he drives a BMW 2002 with 400HP and his dad drives a 2002 with 700+ horsepower... both are 2.0L turbos. Thanks for turbocharging my car too

400 HP !!!
AND
700+ HP!!!!!!!!!!!!!

Woah can you give us the details (and pics) on the boost setup you got runnin on these cars?

Brian

BLOWN3 · #9 (**permalink**) 07-09-2002, 09:41 PM

Well actually they are here. Details of the 400HP 2002 aren't up but the 700+hp 2002 are easy to find. I remember at one dyno run, it was making 400bhp on 4psi (not a typo).

"2002 turbo" owns the ~400hp 2002 and he's currently redoing all the electrical wiring, gauges, etc and air filter setup so he'll prolly do a dyno run after everything is ready and then it'll be on the website. He took me for a drive in it before and I almost shat myself

Almost 400hp in a car weighing around a tonne!

S50 · #10 (**permalink**) 07-11-2002, 05:07 PM

[quote]Originally posted by BLOWN3
[b]Well actually they are here. Details of the 400HP 2002 aren't up but the 700+hp 2002 are easy to find. I remember at one dyno run, it was making 400bhp on 4psi (not a typo).QUOTE]

Unfortunately he doesn't mention just how big the turbo is, nor what CR and fuel he's running on the '02 racecar.

I'd be interested to know these items as 650+hp is a ton from that small of a motor.

BLOWN3 · #11 (**permalink**) 07-12-2002, 12:06 AM

Quote:

Unfortunately he doesn't mention just how big the turbo is, nor what CR and fuel he's running on the '02 racecar.

I'd be interested to know these items as 650+hp is a ton from that small of a motor. [/b]

Trade secret I guess - but it's a huge ball bearing item - that's all i know. It would swallow my turbo for breakfast.

Gotta remember it's a race car and so not driveable with low revs... I remember him saying anything less than 5000rpm and it's not going anywhere. It revs up to around 9000rpm.

CR = no idea!

Fuel = AVGAS

RacingDynamcs · #12 (**permalink**) 07-13-2002, 06:49 AM

KS made a supercharger for the e46 M3 goes from 333hp tooo... 525HP totaly insane...

Josh · #13 (**permalink**) 07-13-2002, 08:01 AM

Quote:

Originally posted by dallasbboy
Has anyone heard of anyone doing this? I'm curious as to how much boost can safely be delivered to the engine.

Brian

A very bad idea in my opinion. As what was said earlier, you would need to rebuild that motor for lower compression. And at that, even BMW is not able to perfect this engine yet, let alone running a few lbs of boost through it. Not to mention the fact that you would lose your warranty on it, and this is NOT an engine you would want to have without a warranty.
If you really want forced induction I would recommend doing it on a different car.

BLOWN3 · #14 (**permalink**) 07-13-2002, 09:07 PM

Quote:

Originally posted by Josh

A very bad idea in my opinion. As what was said earlier, you would need to rebuild that motor for lower compression. And at that, even BMW is not able to perfect this engine yet, let alone running a few lbs of boost through it. Not to mention the fact that you would lose your warranty on it, and this is NOT an engine you would want to have without a warranty.
If you really want forced induction I would recommend doing it on a different car.

I agree

btw - you got a mad car Josh! I'm getting a Riger front lip spoiler like yours but it isn't adjustable

where did you get yours from?

Josh · #15 (**permalink**) 07-13-2002, 09:27 PM

Quote:

Originally posted by BLOWN3

I agree

btw - you got a mad car Josh! I'm getting a Riger front lip spoiler like yours but it isn't adjustable where did you get yours from?

Thanks. It is the BMW LTW/GT front splitter. I got mine from www.motorsportimports.com