78gts vs pt88 log comparisson
08-15-2012, 11:54 AM
#22
149 @ 12psi boost and 3050lbs
i am sure it would much faster if i pushed it on the turbo, but it was 100 out and i was not going to bump the boost when i couldnt hook anyway
the motor likes this one much better, very easy to feel
no back pressure data, but loosing boost is obviously coming from a bad intake to exhaust pressure bias
remember this is a 370" 10:1 engine with 360/250cfm heads and a 232/242-113 cam, u can tell the engine likes it above 6k but the turbo did not
and the the gts is a 75/82mm turbine, the pt88 is a 84/93mm turbine
i am sure it would much faster if i pushed it on the turbo, but it was 100 out and i was not going to bump the boost when i couldnt hook anyway
the motor likes this one much better, very easy to feel
no back pressure data, but loosing boost is obviously coming from a bad intake to exhaust pressure bias
remember this is a 370" 10:1 engine with 360/250cfm heads and a 232/242-113 cam, u can tell the engine likes it above 6k but the turbo did not
and the the gts is a 75/82mm turbine, the pt88 is a 84/93mm turbine
08-15-2012, 06:27 PM
#24
oh yeah it will rip no doubt about it, i still have a smile from last night on 15psi
the regular pt88 is a 11 blade turbine so you cant just slap a caliper on it and get the exact amount, but it is close to 84mm exducer and 93mm inducer
the regular pt88 is a 11 blade turbine so you cant just slap a caliper on it and get the exact amount, but it is close to 84mm exducer and 93mm inducer
09-10-2012, 08:28 AM
#25
i just wanted to share the pt88 did make a very nice difference at the track
it now backhalves correctly, you can just feel it is strong out the back and doesnt lay over
this was 14.5psi of boost since i am limited by the 2bar right now
next pass was a 8.91@158
before it would only pick up 28-29mph and def no where near that trap
yes my 60s suck
it now backhalves correctly, you can just feel it is strong out the back and doesnt lay over
this was 14.5psi of boost since i am limited by the 2bar right now
next pass was a 8.91@158
before it would only pick up 28-29mph and def no where near that trap
yes my 60s suck
gittin' it done 
09-11-2012, 08:30 AM
#34
thanks guys, it was a great feeling, and a big surprise when i got back to the tower
i need to work with the suspension so i can get my 60ft in line now, then it would really go
it is funny because right now it comes out 20ft soft and then it moves out
i cant get it to take an initial hit of power without spinning, but once out a couple feet the little tires will hold all i can throw at it, i have full boost ramped in .5 seconds after i release the T brake
and here is one it was close to taking a hard initial hit but no go..... doe it seem like it is hitting the tires too hard or not hard enough on that hit? cant really tell if i need to drive the tires into the pavement harder initially or not so much
i need to work with the suspension so i can get my 60ft in line now, then it would really go
it is funny because right now it comes out 20ft soft and then it moves out
i cant get it to take an initial hit of power without spinning, but once out a couple feet the little tires will hold all i can throw at it, i have full boost ramped in .5 seconds after i release the T brake
and here is one it was close to taking a hard initial hit but no go..... doe it seem like it is hitting the tires too hard or not hard enough on that hit? cant really tell if i need to drive the tires into the pavement harder initially or not so much
09-11-2012, 03:43 PM
#37
Those are regular slicks. 26x9
And I agree after watching the vids about the anti squat. You can see watching frame by frame it doesn't drive the tire down on the hit and just trys to turn the tire. Thanks for the input on that
I am rather spoiled on the boost controller, I have an Ams 1000
That was the first I used it on the track I always was just a manual controller before.
That thing is so awesome, should of got one way sooner.
Once I get the chassis sorted out some it should be stout and consistent with the AMS
Works awesome on the street too, just save a different config for track and street, one second to change from one to the other
And I agree after watching the vids about the anti squat. You can see watching frame by frame it doesn't drive the tire down on the hit and just trys to turn the tire. Thanks for the input on that
I am rather spoiled on the boost controller, I have an Ams 1000
That was the first I used it on the track I always was just a manual controller before.
That thing is so awesome, should of got one way sooner.
Once I get the chassis sorted out some it should be stout and consistent with the AMS
Works awesome on the street too, just save a different config for track and street, one second to change from one to the other
