slowgsr
15+ Year Contributor
- 862
- 9
- Dec 17, 2007
-
hamilton,
ON_Canada
Hi, my setup is in my profile.
Anyways, my car has such horrible lag.. In 1st gear i can only make 1.15bar and in 2nd i only make 1.22ish bar, this is pulling to 7200.
In 3rd and 4th i hit full boost of 1.5bar around 5000rpm, which seems very late for the size of turbo im using.
So im thinking i have a boost leak? The spool time was around the same on the dyno as well in 3rd & 4th.
Everything is tbolts and 4plys silicone couplers all new, the charge piping system is new and fits very well, but i must have a leak.
So what do you all think? Is a boost leak probably the issue here? Im using a tial 50mm bov as well.
When i do a boost leak test, do i need to remove the charge piping from the TB, and cap it there, then pull it off the turbo and apply pressure and check? Or can i leave it connected to the intake manifold.. I thought it would leak out through the motor though.. (could be wrong)
Thanks! Hopefully its just a boost leak somewhere, the powerband of 2000ish rpm is horrible (only reving to 7k)
Just another Question, how high can i rev my stock 6 bolt? I have FP stage 2 cams and revised topline lifters, valves/retainers stock.
Thanks.. If i could go to 76-7700 that would help out with my powerband atleast.
Anyways, my car has such horrible lag.. In 1st gear i can only make 1.15bar and in 2nd i only make 1.22ish bar, this is pulling to 7200.
In 3rd and 4th i hit full boost of 1.5bar around 5000rpm, which seems very late for the size of turbo im using.
So im thinking i have a boost leak? The spool time was around the same on the dyno as well in 3rd & 4th.
Everything is tbolts and 4plys silicone couplers all new, the charge piping system is new and fits very well, but i must have a leak.
So what do you all think? Is a boost leak probably the issue here? Im using a tial 50mm bov as well.
When i do a boost leak test, do i need to remove the charge piping from the TB, and cap it there, then pull it off the turbo and apply pressure and check? Or can i leave it connected to the intake manifold.. I thought it would leak out through the motor though.. (could be wrong)
Thanks! Hopefully its just a boost leak somewhere, the powerband of 2000ish rpm is horrible (only reving to 7k)
Just another Question, how high can i rev my stock 6 bolt? I have FP stage 2 cams and revised topline lifters, valves/retainers stock.
Thanks.. If i could go to 76-7700 that would help out with my powerband atleast.