M3 Turbo Hope

[PicknCrew]

Making a turbo for BMWs has been a challenge because of BMW's drive-by-wire, engine mgmt and vanos systems. Nobody is making an aftermarket turbo kit, even though S/C kits are out there. Heck, even the factory is just now putting in their first stock turbo (TT) in the new 335i series. Well, first one in many many years. Supposedly Active Autowerkes is in development on a turbo kit and others have tried and failed, but Horse Power Freaks (HPF) are real close to being the first to market for the '01-'06 M3. There are a lot of M3'ers out there watching this closely, including myself of course. You know you'll have to sell your first born to get one though ...expected $8 - 10k.

HPF are still tweaking and tuning, but initial results over the stock ~263 rwhp are very impressive:

518rwhp - 400ft-lbs at 7psi :eek:

This is very good news....I want one! :D

http://forums.bimmerforums.com/forum/showthread.php?t=481320

[SOUTHPAW]

518rwhp - 400ft-lbs at 7psi :eek:

Holy Crap! I am assuming this is a single turbo setup...? If the price is $8-10k installed, it is well worth it. Hell add $2k for install and it's still worth it! I heard my buddy say he saw a customer at the dealership pay $15k to install a supercharger on his 540i and it was still slower than his stock M5!? :eek:

How is the motor expected to hold up with boost...?

[Rokkit]

If im not mistaken... arnt those engines high compression already? like 11:1 or something?

I think you need change out the pistons to make them 8-8.5:1 to support a lot of boost, but then again.... 7psi? i donno Beemers...

I do know however, those motors are forged, totally...

[SOUTHPAW]

Well, my motor is 10.9:1 and it's safe to run 10-11 psi... then again, the M# motors probably rev a lot higher...?

[Stew]

The E46 M3 runs a 11.5:1 compression ratio, which is why they can squeak 518 RWHP out of 7 psi. Running more boost would require lower compression, but a thicker head gasket would probably get them enough room to run into the teens for boost and touch the 600 whp mark. Anything stoopid for boost would most likely require lower compression pistons, and I can only imagine the price tag on that for a M3.

[SOUTHPAW]

What Stew said...

I had plans to lower my compression to 9.5:1, with some forged pistons, rods, head work, studs, seals and gaskets, etc. to run about 18 psi and make around 800 whp... but the fact that I may be buying a new car for a daily driver kills that idea. :( Looks like it's just suspension/clutch/tires for me, 10's will have to do...

[Stew]

10's will have to do...

...for now :tongue:

Atleast wait to you can get to the track and make it official before you opt for 9's :cool:

[scorpbia]

You know you'll have to sell your first born to get one though ...expected $8 - 10k.


...thanks Steve!! :squint:

[PicknCrew]

Opps.......... Sorry Scorpbia! :D

[PicknCrew]

I don't think these guys put on a thicker head gasket for the Stage I to bring compression down, but maybe. They are still tuning and testing different variations but are blown away with the results they are getting - way above expectations. The 518rwhp was with a single PT61 turbo but they are now looking at the PT67. :D They feel confident that when the Stage I kit comes to market it will make over 500rwhp on pump gas, with stock internals. It looks like the stock plastic intake will have to go as it can't handle the pressure. The M3 S54 engine is a strong engine with a cast iron block, though the rod bearings are touchy and pistons are lightweight. Who knows how long it will last though? They don't know the upper limit on this engine until they start blowing them up, which they plan on doing. They are also developing a Stage II kit (700rwhp?) which of course will require a reworked head and stronger pistons. This is breathing new life into the M3's which have been short on HP and especially TQ. It will be interesting how this all pans out.... the $8-10k maybe more like $10-12k and that does NOT include installation. :(

[SOUTHPAW]

Must be nice to have unlimited resources and blow up engines in search of power limits... :cool:

[PicknCrew]

New dyno pulls wtih PT67 turbo, stock internals:

557rwhp at 8.7psi

576rwhp at 10psi / 422 rwtq

603rwhp at 11psi with a slipping clutch

video:

http://www.horsepowerfreaks.com/videos/m3turbokit/HPFM3_576rwhp.wmv


"The M3 motor will handle 500rwhp at 6psi all day long with our tune. Barring no oil pressure or bad oil, the most likely way to blow up a motor is to run it lean or run too much timing. I've blown up several Supra motors over the years both stock and built. I switched back to running stock motors because if I blow them up, they're cheap. I am now making 900rwhp through a TH400 which is roughly 1250bhp on a stock motor. I know the Supra and M3 motors are different, however, the M3 motor makes 500rwhp with way less cylinder pressure than the Supra. It is hands down a better motor for many reasons. There will be a limit to the stock M3 motor and I think it will fall somewhere between 750-1000rwhp even with a good tune. But we won't really know that figure until someone pushes it that far, and we will be pushing it."

HPF

[SOUTHPAW]

Those guys are fcukin nuts! :eek:

[PicknCrew]

Horse Power Freaks just released the long-awaited pricing and availability (Mar'07) for the first turbo kit to come out for the M3: - :D

$16k - :mad:

500rwhp @6 psi or 600 rwhp@11 psi with stock internals, stock exhaust - :eek:

(reliability tests are pending)

Per HPF-

"We decided to release our turbo kit with an earth shattering 750bhp (600rwhp) instead of the proposed 625bhp (500rwhp). The reason being that a simple fuel pump was all that was needed to get to make another 125bhp so we merged the stages together. Our turbo kit will easily make even more power than this but that will require stage 2 "HPF 1000" which includes built internals.

With that said, the price for the complete bolt up kit will be $16K. With a 420bhp increase in power, that works out to be $38/bhp which is far cheaper than any other power adder for the E46 M3 on the market today."


http://www.horsepowerfreaks.com/price/BMW/M3/HorsepowerFreaks/Turbos/Turbo_Kits


Very cool, but I think I'll be sticking with the basic air intake upgrade for now! Like anything I'm sure costs will come down after a while.

[Zazza CEO]

16k, f that! that is retarded...

[Juice33]

For the incredible amount of power to be gained, I guess it isn't that bad of a deal, really.

[PicknCrew]

New M3 Turbo numbers, 667rwhp - stock internals! - :D

HPF Update:

We got our new fuel system installed and our new clutch so we could turn the boost up a bit more. Last time we made 603rwhp SAE at 11.5psi. This time we maxed out the T67 turbo at 667rwhp at 13.5psi (Uncorrected - which is what the car actually put down). The SAE correction put it at 634rwhp because it is so cold today. These numbers are all on the stock engine and stock exhaust. No modifications whatsoever have been done to either. We could have made more power, but that was all the boost the turbo had. This shows that the stock M3 engine is stronger than many people give it credit for. We did nearly 100 dyno pulls today many of them over 600rwhp. The lower dyno number in the graph, 263rwhp was of the "same" car right before we put the turbo kit on it.

(street video is not too exciting, "holy hell" lol )
http://www.youtube.com/watch?v=TS-aGJGsFhU

[Juice33]

***** I may have to buy an M3 and a turbo kit. This is looking like an insane kit.