Highest HP 4g63 engine (from 2007)
Newbie
Joined: Jan 2011
Posts: 8
Likes: 0
From: greek
Last edited by dytis; May 27, 2011 at 04:33 AM.
Newbie
Joined: Jan 2011
Posts: 8
Likes: 0
From: greek
Thread Starter
Former Sponsor
Joined: Apr 2008
Posts: 282
Likes: 0
From: Athens, Greece
As somebody mention for this subaru,
We test a new project subaru 2004 sti to the 1/4mile, with only 36.7psi boost.
Its a full true street car full interior 3260lbs weight with driver and 1225hp (1000whp). Its first time we test it. we made 3 passes total 9.7 then 9.4 then 9.2 with 160mph with terrible 1.58-1.6 60''. If we had another 1 or 2 passes we could brake the 9. This full street car is capable for 8.8 passes easy. This car is daily driven, i will post pics of it soon. We have tune it with simple VP import race fuel, we are planning to upgrade it to methanol when brakes the 8.8 that we are waiting with Vp fuel.
We also finishing the other subaru project for low 8s.
Something more important is that we dont have good tracks to test all these cars. After 20meters we dont have glue at the dragstrip as its common airport and we loose traction when we add power.
Spyros
We test a new project subaru 2004 sti to the 1/4mile, with only 36.7psi boost.
Its a full true street car full interior 3260lbs weight with driver and 1225hp (1000whp). Its first time we test it. we made 3 passes total 9.7 then 9.4 then 9.2 with 160mph with terrible 1.58-1.6 60''. If we had another 1 or 2 passes we could brake the 9. This full street car is capable for 8.8 passes easy. This car is daily driven, i will post pics of it soon. We have tune it with simple VP import race fuel, we are planning to upgrade it to methanol when brakes the 8.8 that we are waiting with Vp fuel.
We also finishing the other subaru project for low 8s.
Something more important is that we dont have good tracks to test all these cars. After 20meters we dont have glue at the dragstrip as its common airport and we loose traction when we add power.
Spyros
Thread Starter
Former Sponsor
Joined: Apr 2008
Posts: 282
Likes: 0
From: Athens, Greece
We did some more tests for our custom racing profiles.
Some of u asks me further details for our custom racing profiles, certainly stage 2 and stage 3cams to see them in action. Stage 2 we wanted to see to the limit. So we place them to our test car with the 13cr race engine to see how they perform.
The tests made to 1bar (15psi) so as to not have restriction from the turbo and have a clear result.
We made these tests to stock fuel so as to be close to what u get.
We were expecting 15-20 more hp but we had intake temperature 138F so we are close to our calculations. We stay at 11.000rpms as the power falls over 10.800rpms.
These profiles are made using the Intake-exhaust velocity 90%-95%. Stage 2-3-4 are calculated based our race engine Mech. efficiency.
Even stage 1 from our tests outflows most known profiles. We had test stage 1 at 76psi boost and more than 380hp per 15psi boost. Stage 2 and above requiers special cylinder head preparation.
Stage 3 we expecting more than 920hp at 15psi and stage 4 1060hp.
We prepare a new engine to test stage 3 and stage 4 as will be able to push it to more rpms safe.
Enjoy
http://www.youtube.com/watch?v=mKlpyliFYMA
Billet driled, and titanium option are available also.
Coming with stage 3 and 4.
Spyros
Some of u asks me further details for our custom racing profiles, certainly stage 2 and stage 3cams to see them in action. Stage 2 we wanted to see to the limit. So we place them to our test car with the 13cr race engine to see how they perform.
The tests made to 1bar (15psi) so as to not have restriction from the turbo and have a clear result.
We made these tests to stock fuel so as to be close to what u get.
We were expecting 15-20 more hp but we had intake temperature 138F so we are close to our calculations. We stay at 11.000rpms as the power falls over 10.800rpms.
These profiles are made using the Intake-exhaust velocity 90%-95%. Stage 2-3-4 are calculated based our race engine Mech. efficiency.
Even stage 1 from our tests outflows most known profiles. We had test stage 1 at 76psi boost and more than 380hp per 15psi boost. Stage 2 and above requiers special cylinder head preparation.
Stage 3 we expecting more than 920hp at 15psi and stage 4 1060hp.
We prepare a new engine to test stage 3 and stage 4 as will be able to push it to more rpms safe.
Enjoy
http://www.youtube.com/watch?v=mKlpyliFYMA
Billet driled, and titanium option are available also.
Coming with stage 3 and 4.
Spyros
Last edited by Extreme Tuners; Jun 13, 2011 at 11:59 AM.
