most boost with these upgrades

[s7mgte]

i got an 88 turbo supra and so far i have brian crower cams upgrade t4 60-1 turbo. hks intake, 3in downpipe and exhaust, metal head gasket with apr studs,. i also have a lexus afm and safc2 and boost controller that are not hooked up. how much boost could i run on the stock 440's with a good tune on the safc2 with these parts. ?

 

[87mgte]

i got an 88 turbo supra and so far i have brian crower cams upgrade t4 60-1 turbo. hks intake, 3in downpipe and exhaust, metal head gasket with apr studs,. i also have a lexus afm and safc2 and boost controller that are not hooked up. how much boost could i run on the stock 440's with a good tune on the safc2 with these parts. ?

with stock injectors and fuel pump you'll probably hit FC at like 10 psi on a 60-1 with all those mods.

 

[OneJoeZee]

with stock injectors and fuel pump you'll probably hit FC at like 10 psi on a 60-1 with all those mods.

Are you implying he would be able to defeat fuel cut with larger injectors and pump?

 

[Big Wang Bandit]

With all the money put into the engine itself, why not invest in some sort of engine management, specifically to rid of the AFM

 

[starscream5000]

I'd say you could boost until you've reached the maximum output of the turbocharger, or you have blown the engine, whichever comes first .

 

[s7mgte]

With all the money put into the engine itself, why not invest in some sort of engine management, specifically to rid of the AFM

i have an apexi safc2. im not sure if that eliminates fuel cut or not. with the tuning of that what am i looking at for bosot before fuel cut.. and if i get rid of fuel cut.. how much could i boost on stock fuel system before it becomes lean?

 

[Big Wang Bandit]

The SAFC is a tuning device, not engine management. I guess they do tie in with eachother tho.

 

[s7mgte]

The SAFC is a tuning device, not engine management. I guess they do tie in with eachother tho.

yeaa i wasn't sure.. how much hp do you guys think id be pushing with fmic, 3in dp and cat back, BC 264 cams, t4 60-1 , hks intake on 10 or 11 psi?

 

[starscream5000]

Do you even have the cams installed and running? I was under the impression that there was some problems with the BC cams...

 

[bowsercake]

generally people do more fuel mods and get tuned when upgrading.

With all supporting mods I believe I've heard of people running 16-18psi on an upgraded ct26.

Here's a post from the dyno sheet thread.

Here's mine from the Tampa meet last weekend @ 12psi on a 60 trim CT26.

 

[mhopemk3]

i got an 88 turbo supra and so far i have brian crower cams upgrade t4 60-1 turbo. hks intake, 3in downpipe and exhaust, metal head gasket with apr studs,. i also have a lexus afm and safc2 and boost controller that are not hooked up. how much boost could i run on the stock 440's with a good tune on the safc2 with these parts. ?

I would think the duty cycle of the stockers would be like 90% @15psi or so. Correct AFR's of course.

My dyno sheet that bowser posted was with the below mods. The Turbo has now been changed to a 60 trim without the BB..

 

[87mgte]

Are you implying he would be able to defeat fuel cut with larger injectors and pump?

haha no, not at all. i don't know anything about fuel cut. all i know is that he's flowing a bunch of air with that 60-1 and full turbo-back which backs the fuel cut down a few psi from what i've read in other posts. people say if you just up the boost on the stock turbo, it's 13.7 psi or somethin, so i figure if he's flowing a lot more air with a few supporting mods, it's probably like 10 or 11 psi for him in particular. if i'm wrong then sorry, that's just what i've been reading in a few other posts i've seen around SM.