T76 to T88 spool difference with an auto?
Originally Posted by Zombie
I am trying to max out this turbo but am running into issues getting it to go over 17psi consistantly. I have been able to hit 20psi in 3rd gear once, but I didn't feel any difference and my IATs went up. Does anyone know roughly the max boost for a T76 on a 370 cube motor?
My turbo also uses the Innovative R wheel which has a trim of 1.00 and Jose tells me it's quite heavy. I'm at a big disadvantage with having the turbo all the way at the back, but I'm trying to make up some of that difference by insulating my exhaust. I am either going to wrap it or just get it ceramic coated and be done with it. Luckily we have a coater here in town.
JZ 97 SS 1500, since you are in here and know about my setup, do you think it would be a worth while switch to go to an 88mm based unit or would it be too much for my setup to spool. A friend of mine who likes to fabricate have been considering doing a variable a/r experiment with a divided housing so that is the other idea that I have... more plumbing LOL
I've been going against the grain a bit since starting this project (back in the days when a rear mounted turbo couldn't possibly make boost). I'm kinda curious as to how far I can take it now. My goal with this setup is mid 10's and a 130mph trap speed. I should be getting really close to that next week. The car is an absolute blast to drive, especially from a highway roll with my gears.
I could always start spraying it I guess, that guarantees the same drivability and fun factor it is now.
My turbo also uses the Innovative R wheel which has a trim of 1.00 and Jose tells me it's quite heavy. I'm at a big disadvantage with having the turbo all the way at the back, but I'm trying to make up some of that difference by insulating my exhaust. I am either going to wrap it or just get it ceramic coated and be done with it. Luckily we have a coater here in town.
JZ 97 SS 1500, since you are in here and know about my setup, do you think it would be a worth while switch to go to an 88mm based unit or would it be too much for my setup to spool. A friend of mine who likes to fabricate have been considering doing a variable a/r experiment with a divided housing so that is the other idea that I have... more plumbing LOL
I've been going against the grain a bit since starting this project (back in the days when a rear mounted turbo couldn't possibly make boost). I'm kinda curious as to how far I can take it now. My goal with this setup is mid 10's and a 130mph trap speed. I should be getting really close to that next week. The car is an absolute blast to drive, especially from a highway roll with my gears.
I could always start spraying it I guess, that guarantees the same drivability and fun factor it is now.
Zombie,
T4 flange correct....... with my 370 and my GT42-76mm turbo on a T6 flange i was maxed out at like 14-15 psi and my intake temps were over 200+ degree's...... back pressure was huge....
Swapped to the S88 and picked up 9mph at the same boost level at the track.........intake temps dropped dramatically..
Kyle
Originally Posted by Zombie
Does anyone know roughly the max boost for a T76 on a 370 cube motor?
My turbo also uses the Innovative R wheel which has a trim of 1.00 and Jose tells me it's quite heavy. I'm at a big disadvantage with having the turbo all the way at the back, but I'm trying to make up some of that difference by insulating my exhaust.
My turbo also uses the Innovative R wheel which has a trim of 1.00 and Jose tells me it's quite heavy. I'm at a big disadvantage with having the turbo all the way at the back, but I'm trying to make up some of that difference by insulating my exhaust.
