Injector tuning with a manifold vacuum regulator...
07-02-2004, 08:02 PM
#1
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Injector tuning with a manifold vacuum regulator... Car- 99 WS6 A4
Couple of questions....(i know i know do a search)
1: I will be running 42lb injectors. How do I go about adjusting for this? Assume:
42lb (rated at 43.5psi) running at 58psi equates to((42x58)/43.5 = 56lb) on our fuel pressure. So assuming 56lb is 115% larger than stock 26lb injectors would I multiply the IFR table by 2.15 ??
2: I will be running a turbo with and will have a Boost Referenced fuel pressure regulator. How can I go about setting up the IFR table for a vaccum regulated fuel pressure regulator since the stock LS1 settings are setup for the engine to rev with vacuum chaning but maintaining a stable 58psi fuel rail pressure.
Thanks.
-Sly
Couple of questions....(i know i know do a search)
1: I will be running 42lb injectors. How do I go about adjusting for this? Assume:
42lb (rated at 43.5psi) running at 58psi equates to((42x58)/43.5 = 56lb) on our fuel pressure. So assuming 56lb is 115% larger than stock 26lb injectors would I multiply the IFR table by 2.15 ??
2: I will be running a turbo with and will have a Boost Referenced fuel pressure regulator. How can I go about setting up the IFR table for a vaccum regulated fuel pressure regulator since the stock LS1 settings are setup for the engine to rev with vacuum chaning but maintaining a stable 58psi fuel rail pressure.
Thanks.
-Sly
07-02-2004, 08:14 PM
#2
FormerVendor
Try 6.0 across the board. It will be close, but check your fuel trims and adjust as necessary.
When using a vacuum referenced regulator, use one number across the entire IFR table.
When using a vacuum referenced regulator, use one number across the entire IFR table.
