Guys,
I have posted several times before I have a twin turbo (PT52) SBC that makes over 1000HP at WOT. It uses the FAST Sequential Fuel w/Individual Cylinder Control. We are trying to tune the car for driveability. The Manual T56 transmission seems to make the car surge/miss at mid RPM more so that the automatic used too. As you might expect the car has huge 84LB injectors in it to satisfy the WOT HP. We have tried several things to tune the miss out of the car. Nothing seems to help with the fuel injection.
The manifold is a converted Vic JR EFI setup (Short Runners) so on a whim we unhooked the fuel injectors and put a 850 carburator on the car. The miss at MID rpm went away along with the richness at idle. The car will fog the shop in nothing flat if we are not careful.
So my question is am I going to have to give up some HP and go with smaller injectors to get this more streetable/driveable or can I tune this out of the car.
With indivdual cylinder control it seems to help to take some fuel out of #3 and #5.
Any thoughts!
Doug
I have posted several times before I have a twin turbo (PT52) SBC that makes over 1000HP at WOT. It uses the FAST Sequential Fuel w/Individual Cylinder Control. We are trying to tune the car for driveability. The Manual T56 transmission seems to make the car surge/miss at mid RPM more so that the automatic used too. As you might expect the car has huge 84LB injectors in it to satisfy the WOT HP. We have tried several things to tune the miss out of the car. Nothing seems to help with the fuel injection.
The manifold is a converted Vic JR EFI setup (Short Runners) so on a whim we unhooked the fuel injectors and put a 850 carburator on the car. The miss at MID rpm went away along with the richness at idle. The car will fog the shop in nothing flat if we are not careful.
So my question is am I going to have to give up some HP and go with smaller injectors to get this more streetable/driveable or can I tune this out of the car.
With indivdual cylinder control it seems to help to take some fuel out of #3 and #5.
Any thoughts!
Doug