Does any1 know what my timing should be set at i do know i should retard a bit but how much? my set up is trickflow street upper/lower stock cam 98 gt-40p heads stock fuel injectors 255l pump vortech fmu and 9 lb powerdyne. Also should i change my timing even if i dont have boost because its new motor I want to run for a while without belt on powerdyne? the car is 94 gt!
gt-40p boost on 306
- Thread starter 94blownsaleen
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No need to cut timing when your not producing boost.
When you do run boost ---The GT40P has 58cc combustion chambers which will give you a higher compression ratio. If your running the chip that Powerdyne supplies the with the 9 psi kit you'll be alright with the base timing set at -10. If you don't have the chip you should get a MSD boost timing retard and start with a 1 degree retard starting at 4 psi. Another option is to install a methanol / water injection system and you won't need to cut any timing and have more power.
When you do run boost ---The GT40P has 58cc combustion chambers which will give you a higher compression ratio. If your running the chip that Powerdyne supplies the with the 9 psi kit you'll be alright with the base timing set at -10. If you don't have the chip you should get a MSD boost timing retard and start with a 1 degree retard starting at 4 psi. Another option is to install a methanol / water injection system and you won't need to cut any timing and have more power.
