NEW Garrett GBC22-300/350: Ultra-high response S15 turbo killer?

[tuzzio]

Originally Posted by AMD 240

You would most likely get rid of boost creep and gain a bit more up top with a proper exhaust manifold.

I think SR's can just outflow most internal wastegate designs. Jimmy Oakes had quite a few creep issues with internal gates.

[brndck]

Originally Posted by tuzzio

I think SR's can just outflow most internal wastegate designs. Jimmy Oakes had quite a few creep issues with internal gates.

he's also running a DE engine (higher compression than DET) and E85.
E85, as we all know, allows you to run a hell of a lot more aggressive timing compared to pump gas, and while i don't have hard data to back this up, i feel that its contributing to overwhelming the IWG.

Having said that, i just finished installing a GBC22-350 on a customers car (unopened sr20det, ISR FMIC, R35 maf, walbro fuel pump, brand new Nismo 740cc injectors, powerFC, stock manifold, ISR elbow and downpipe, idk what exhaust it is but its 3") and have dyno time scheduled this week with Koji Arai, so we'll see if we run into similar issues. We'll also be on pump gas, and just the 1bar IWG spring, no boost controller yet.

[Krusty_s13]

Originally Posted by brndck

he's also running a DE engine (higher compression than DET) and E85.
E85, as we all know, allows you to run a hell of a lot more aggressive timing compared to pump gas, and while i don't have hard data to back this up, i feel that its contributing to overwhelming the IWG.

Having said that, i just finished installing a GBC22-350 on a customers car (unopened sr20det, ISR FMIC, R35 maf, walbro fuel pump, brand new Nismo 740cc injectors, powerFC, stock manifold, ISR elbow and downpipe, idk what exhaust it is but its 3") and have dyno time scheduled this week with Koji Arai, so we'll see if we run into similar issues. We'll also be on pump gas, and just the 1bar IWG spring, no boost controller yet.

Hell yeah! hoping it goes well for you, excited to see what it makes!

I'm sure the comp ratio, cams, and e85/timing didn't help me with the creep. The response on the turbo is fantastic, had a track day this past saturday and it did very good. No need to clutch kick, and if i fall out of boost a bit i roll into the throttle and it lights back up. I'm happy with it.

[slider2828]

Originally Posted by brndck

he's also running a DE engine (higher compression than DET) and E85.
E85, as we all know, allows you to run a hell of a lot more aggressive timing compared to pump gas, and while i don't have hard data to back this up, i feel that its contributing to overwhelming the IWG.

Having said that, i just finished installing a GBC22-350 on a customers car (unopened sr20det, ISR FMIC, R35 maf, walbro fuel pump, brand new Nismo 740cc injectors, powerFC, stock manifold, ISR elbow and downpipe, idk what exhaust it is but its 3") and have dyno time scheduled this week with Koji Arai, so we'll see if we run into similar issues. We'll also be on pump gas, and just the 1bar IWG spring, no boost controller yet.

Thats awesome, I haven't heard of Koji Arai in a long time.... Where does he work out of now? I wish there was some sort of dynapak vs. dyno dynamics vs. mustang dyno differences.

On my GT2871R .86 ar with HKS Step 1 cams, I barely made 330WHP on a dynodynamics....

What WHP do we thinking on a mustang or dyndynamics dyno on this turbo?

[brndck]

Originally Posted by slider2828

Thats awesome, I haven't heard of Koji Arai in a long time.... Where does he work out of now?

he never really went away, he's been at a shop called autotalent for years and years and years, but their clientele is more Lambo/Bmw/Exotics, not the same as when he was at driftspeed. Fortunately for me, AutoTalent is only like 2.5 miles from MY shop.

[inopsey]

Originally Posted by slider2828

Thats awesome, I haven't heard of Koji Arai in a long time.... Where does he work out of now? I wish there was some sort of dynapak vs. dyno dynamics vs. mustang dyno differences.

On my GT2871R .86 ar with HKS Step 1 cams, I barely made 330WHP on a dynodynamics....

What WHP do we thinking on a mustang or dyndynamics dyno on this turbo?

tough call but probaby about 280ish at that boost on dynodynamics

[tuzzio]

Originally Posted by slider2828

I wish there was some sort of dynapak vs. dyno dynamics vs. mustang dyno differences.

Not to take away from Marks thread but, THIS is exactly why my car didn't go on a dyno for a long, long time. Number is irrelevant. Graph is all that matters.

I saw the video Mark put on fb last night of the car on the dyno. I bet its a fucking hoot.

[slider2828]

Originally Posted by tuzzio

Not to take away from Marks thread but, THIS is exactly why my car didn't go on a dyno for a long, long time. Number is irrelevant. Graph is all that matters.

I saw the video Mark put on fb last night of the car on the dyno. I bet its a fucking hoot.

I agree, but depends what you are doing. Not always the efficiency chart is the same as real world correlations. There are certain goals I want, but also how the power comes on... is just as important. Also numbers do dictate what components you put in the car on the project