I guess this is mainly for TTA89 & cool84.
I was helping Sharif tune his 85GN. He had the wastegate tightnened all the way down. With a hypertech chip, the factory boost gauge was saying 13psi with pretty lazy spool up. We switched back to the factory chip and it was down to 9 psi. He was convinced that his boost gauge was worthless, but he had plenty of threads, so I convinced him to try and cut 1/4in off the end. We did, guessed at where the rod should be, and test drove. 0 deg Knock @8psi, so two turns on the rod, and test again. O deg knock, two more turns on the rod, no knock. We kept going back and forth - shortening, testing, shortening, testing, until we had maxed the rod out again at @ 14psi. O2 @ .95-1.02mV. Soon, Sharif will thread the rod out some more so he can get some more turns on it. Not to mention that spool up is a lot quicker.
Anyway, we ran a little bit on the highway when it was finally time for me to go home. He was in front, so he turned onto the highway first ahead of me. I think he waited until I was fully on the highway to go WOT, but I pretty much did the same at the same time. I pretty much went by relatively easy from @ 1.5 lengths behind him to maybe 1 length ahead. Not exactly flyin by, but not too hard either.
This is on mostly stock cars, and with more boost, the 85 should run faster. Just thought I'd share anyway.
I was helping Sharif tune his 85GN. He had the wastegate tightnened all the way down. With a hypertech chip, the factory boost gauge was saying 13psi with pretty lazy spool up. We switched back to the factory chip and it was down to 9 psi. He was convinced that his boost gauge was worthless, but he had plenty of threads, so I convinced him to try and cut 1/4in off the end. We did, guessed at where the rod should be, and test drove. 0 deg Knock @8psi, so two turns on the rod, and test again. O deg knock, two more turns on the rod, no knock. We kept going back and forth - shortening, testing, shortening, testing, until we had maxed the rod out again at @ 14psi. O2 @ .95-1.02mV. Soon, Sharif will thread the rod out some more so he can get some more turns on it. Not to mention that spool up is a lot quicker.
Anyway, we ran a little bit on the highway when it was finally time for me to go home. He was in front, so he turned onto the highway first ahead of me. I think he waited until I was fully on the highway to go WOT, but I pretty much did the same at the same time. I pretty much went by relatively easy from @ 1.5 lengths behind him to maybe 1 length ahead. Not exactly flyin by, but not too hard either.
This is on mostly stock cars, and with more boost, the 85 should run faster. Just thought I'd share anyway.
Sounds about right to me. It took a chip, K&N, and 18psi until I could beat a bone stock IC car and I'm talking barely pulling away. The car went high 13s at 101.7mph like that but mine always seemed to run better than most with the same mods for some reason. Funny thing is, around here (2 TTAs, 3 87 GNs, 1 86 GN, 2 84 GNs, and 1 84 T-type) my car is the second fastest next to my dad's stage II car. And yes, I've done a little work and gotten it tuned since I ran the time in my sig. The advantage to owning a hotair is I've always got the excuse that mine is the slowest year of the GN and I tell them my dad's is an 87 (I don't mention the stage II part or that it started life as a hotair) which is the fastest year and see if they want to race a fast one. The reaction is usually pretty funny.
