Horsepowerfreak recenttly announced the completion of their Turbo Kit. Sounds very promising. Will this have any chance against the big boys 996TT?

 

I am an E46 guy but I don'n own an M3. However over on e46fanatics HPF is claiming to be running 8psi (a little more than .5bar) and getting like 530RWHP with a 8000 RPM redline and stock internals. They are now planning on seeing how far the stock internals will go before needing new gaskets, pistons, and rods. They are planning on testing 15 psi (a little more than 1bar) and also testing 20psi with a BB terbo. here is the link
http://forum.e46fanatics.com/showthread.php?t=414872
put is this way, if you hear a PSSS sound coming from an e46 M3, run an hide unless your name is Craig, VRalexander, or Mariski. And they need to be careful with anything running 15psi and a built motor.

 

thats great they are pushing the limit, but personally coming from a turbo car (sti) I wanted something with a nice smooth high revving n/a powerband and thus chose the m3. I wouldnt toy with this motor at all given the history of the early m3's. The stock power really is plenty for most DE stuff and sitting in SF traffic lol...If I opted to go FI at some point in the future, id probly go with an s/c setup.

 

They are actually claiming 533 rwhp at 8 psi, which is almost double the M3's stock HP at only 8 psi. I, as well as others on M3forum, have asked them how this is possible...since I thought in order to double the power of an engine..you needed double the air intake. Which would mean 14.7 psi or so (100% of atmosphere). I realize the car has high compression..but it still doesn't seem possible to nearly double it's power at only 8 psi (54% of atmosphere).

We asked the question a few days ago, and they have not responded as of yet.

 

I think it would take away from the car's true soul..and yes...it has a soul...

 

I'm not scared of it...bring it on!

 

M3 with 15 PSI on stock internals =

 

If you think that is impossible Scott, you should hear his plans that he has been exchanging back and forth with me on e46 via pm's, insanity. I was thinking about doing it, then i realized, our platform is FAR superior and i would be an idiot to take a step back, although i want another m3 badly as a daily, not as a project/FI car, it will have power, but SEVERE issues with traction and in every other category!

 

I have had a few e46 m3's- great cars..

Are these guys dropping the compression on these engines, running sodium filled valves for heat? Or is this a bolt on kit.........?
Thats a ton of HORSEPOWER to make with only 8psi of boost.

They may make 500+ rwhp but for how long?

Dont get me wrong the m3 is great car - But I have yet to see someone make a real reliable kit.. It would be really nice if this is the first one..
Time will tell..

 

Im with you... Bring it......................

 

Nothing but a bolt on kit, 530rwhp/650 crank isnt where he is stopping for stg 1 and on stock bottom end too, hes going higher, way higher before offering the stg 2 which is with a build!

 

Had an E46 M3 - girl in the Avatar has one now - great cars -

Bring it on - I would love to race 'em at Sebring in my tt.

 

Reliability will always be what needs to be in the forefront so it would be interesting if any issues are encountered. Also, when and where on the graph is the HP/TQ coming in and is it flat or very peaky? I'm sure a 600HP turbo M3 can be developed, but if it can't keep up with a 500HP car in the real world, what's the point (unless only dyno numbers are important)?

By the way, I don't get these dyno videos...it shows a car standing still with no meters, etc.

 

You have to remember that the M3 has a 8000 RPM redline which some even raise as high as 9000. There is alot of room to work with when you can rev that high. Even with a big turbo you still have plenty of time before you have to shift. Like I sais and Martin (illm3) will agree, the stage two with a built motor and 15psi will be sick and dangerous for TT's. He also has plans of going even higher, till the motor busts probably.

 

Who's the "Protomotive" of the M3 world that can build the motor and slap on the Turbos?