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Old 02-22-2012, 06:02 PM   #8
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Join Date: May 2006
Location: Midwest
Posts: 539
My Ride: M3
Originally Posted by 02PRUV View Post
For a custom setup why bother buying an ECU from HPF? Your better of running a Vipec so you can control everything and program it yourself.

A 0.68A/R rear is too small for an S54. I ran an 0.82A/R on a GT35 and that was still too small. If you bring boost on too soon you will break ring lands with more than 10 psi in a short time period. If you look at all the HPF cars with stock engines boost comes on after 5000rpm. That's how they keep them living. Would feel lazy though.

Just buy a HPF plenum. They are well made, fit well and work. Don't even bother with trying to use the stock plenum.

Don't look at the power American cars make on US dynos. You won't make anything near what they make. Aim for around the 400rwhp and you will have it last a while with boost coming on early. If you want to run more boost make sure it only starts coming on boost after 5000rpm which to do you will need a big A/R rear maybe a 1.00A/R or bigger. Or go a bigger turbo around a 800hp rated turbo with a 0.96A/R rear. Then you will most likely see it living with 450+rwhp but it will be lazy coming on boost more like a supercharger.
There is HPF kits in Turkey,Sweden,Germany and UK now.They make same power on European dynos or even more than US cars here.

He made 500 rwhp on stage 1,thats even more than HPF is claiming and he is in Europe? Maybe you meant dont look at anybody's dyno but only AUS one?

Sorry for OT

09 SL63 AMG Designo,pano and whole nine yards lol
07 S550 P2 4matic-gone
03-M3-6766 DBB..Tubular manifold...
95-M3 SC stage 2-Widebody...
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