English Racing takes its '04 SSL to 506whp on stock turbo, ECU

May 1, 2008

35R or noting for Evos. The stock turbo is amazing.

So if you do keep on my site you can tell my updating is always on the behind. My Evo went under the knife this year to try and make some record stock turbo # which we have done.

So after a killer day of tunning I tossed my car on the dyno at Bobs
(Drift Office). The day before I did the PS/AC delete mod which I can
revert back in less then a min since I have a electric water pump.
(change the belt) I also put 10/30 syn oil (had 20/50 dyno) and messed
with my stock WG some but it still tapered to 24psi by 6k.

I drove the car 3hr in the snow and rain to Seattle with 20gal of E85
in the trunk. The car has about 3k now on it at the 450whp + and the
stock turbo is still holding strong.

This also make me a firm believer in Dyno Jets. I picked up just what I
wanted from my small mods and dynoing on 2 different dyno jets and
getting the right # on both.

My goal of 10s and close to 130mph in a full weight SSL on Stock Turbo should happen by the end of the year.

The car is running a tad rich out the top. Have not had much tunning time with the 2nd pump and 1200s I put in last week.

Mods that are still left

  • AEM EMS
  • 5in Ram Air for the track
  • FP WG to try and see if we can get more boost out the top
  • Spark Tech COP
  • DI long runner intake


Mods to date that matter for power.


'04 SSL EVO full weight minus spare tire and Jack

  • IX Stock trubo
  • GSC S2 with Kiggly beehive valve springs
  • ETS 5in IC and 3in piping with ETS intake pipe
  • RC 1200s's
  • MAFT pro with 5bar AEM sensor
  • TiAL BOV
  • 255hp
  • Cust cold air intake
  • E90 fuel
  • spike 28psi hold 24psi to redline.
  • Flash tuning done buy me.
  • Stock WG actuater
  • O2 housing
  • BS remove
  • 10:1 alum rod motor
  • Electric water pump
  • light head port work
  • ported intake
  • intake spacer
  • Mil.Spec 65mm TB
  • -BR 3in TBE
  • -Exedy SR triple
  • -EnglishRacing built tranny with a IX taller 1st
  • -Small serp belt to by pass the PS/AC

Dyno Sheet of the 506whp as you can see it does taper hard but being over 400whp from 4.5k to 8k makes for one fun street car.

Photobucket