[G2K]

Hey guys im trying to find a pulley combo that would help me get to 10PSI.
Currently the car is at 8psi and havent been tuned for e85 yet but will very soon before doing so I would like to raise the boost a bit... I know that with a 2.5" I can probably reach this psi but I cant find anyone sellinga zPE pulley in this size... Maybe the experts here can advise on how I can achieve this PSI? Maybe by adding a lower pulley, if so? which one (%) can I get?

Current mods:
2019 ZL1 LT4 blower 2.75" ZPE griptec pulley
LT4 HPFP
LT4 Inyectors
1 7/8 Headers
3" exhaust
Roto-fab CAI
Might Mouse catch can
E85 Flex fuel sensor
Edelbrock exp. tank

Any help appreciated

[KingLT1]

http://www.z-industries.com/lt4-z06-...2-pulley-only/

[G2K]

Originally Posted by KingLT1

http://www.z-industries.com/lt4-z06-...2-pulley-only/

Z06 pulleys would work on ZL1? I thought there was some slight changes?

Is not, this would definetly bring me up to 10PSI you think? I have stock ZL1 lower crank pulley

[KingLT1]

I am not 100% but I believe the hub is different between platforms but the pulley is the same. Either way if it doesn't fit, next option would be calling ADM performance. They specialize in LT4 swaps.

[G2K]

Originally Posted by KingLT1

I am not 100% but I believe the hub is different between platforms but the pulley is the same. Either way if it doesn't fit, next option would be calling ADM performance. They specialize in LT4 swaps.

If thats the case I should be golden... Asking around I was able to get one local funny what shows up when you just ask :P....

Thanks again KingLT1.

[Eldi Z]

Originally Posted by G2K

Hey guys im trying to find a pulley combo that would help me get to 10PSI.
Currently the car is at 8psi and havent been tuned for e85 yet but will very soon before doing so I would like to raise the boost a bit... I know that with a 2.5" I can probably reach this psi but I cant find anyone sellinga zPE pulley in this size... Maybe the experts here can advise on how I can achieve this PSI? Maybe by adding a lower pulley, if so? which one (%) can I get?

Current mods:
2019 ZL1 LT4 blower 2.75" ZPE griptec pulley
LT4 HPFP
LT4 Inyectors
1 7/8 Headers
3" exhaust
Roto-fab CAI
Might Mouse catch can
E85 Flex fuel sensor
Edelbrock exp. tank

Any help appreciated

What kind of WHP levels do you typically see on 93 straight?
Who did the tuning?
Did you replace pistons? Adjusted the stock ring gaps?

[G2K]

Originally Posted by Eldi Z

What kind of WHP levels do you typically see on 93 straight?
Who did the tuning?
Did you replace pistons? Adjusted the stock ring gaps?

I havent been to the dyno, just put the blower on the car... Will be tuned remotely, stock pistons.

[Markoz28]

pretty sure Weapon X can hook you up with a Griptech 2.5 pulley.

By chance did you use the 95mm TB on the LT4 blower?

[Eldi Z]

Originally Posted by G2K

I havent been to the dyno, just put the blower on the car... Will be tuned remotely, stock pistons.

Good luck with the tune.
Who is your remote tuner?
I shall follow your build, since the LT4 SC setup is also my future plan.

[G2K]

Originally Posted by Eldi Z

Good luck with the tune.
Who is your remote tuner?
I shall follow your build, since the LT4 SC setup is also my future plan.

Pray Performance

[Drsagacity]

I think you could check the ATI balancer/hub/lower supercharger pulley and that might be a really easy way to go. Pretty sure if you change the lower pulley to 10% overdrive you will pick up a couple pounds of boost.

[G2K]

Originally Posted by Markoz28

pretty sure Weapon X can hook you up with a Griptech 2.5 pulley.

By chance did you use the 95mm TB on the LT4 blower?

Stupid me I sold it as Im not going to port the blower and didnt find any data using the adapter plates that are out there. So I just went back to a Ported 87mm

Originally Posted by Drsagacity

I think you could check the ATI balancer/hub/lower supercharger pulley and that might be a really easy way to go. Pretty sure if you change the lower pulley to 10% overdrive you will pick up a couple pounds of boost.

Yeah my thoughts too, Anyway I was able to find an 2.5 griptec pulley. So thanks to all for your inputs.