I've recently done a vr4 conversion again after my previous got defected I've got everything plated. Though its not running no way near as good as it was previously.
Atm it's got no power kicking in till late revs (4500-5000) I hear the spooling at 2500 but its keeps spooling and holds then once at those late revs in just kicks - epic lag
Mods I've got running are
vr4 motor
Full 3" mandrel exhaust with high flow cat and magnaflow muffler, along with driven performance manifold and 38mm tial external wastgate.
HKS SSQV bov
Evo 7 560cc injectors
Eprom chip for fuel/boost cut, 560cc injectors, 055 maf etc
14b turbo
055 maf with pod
2.5' IC piping with evo 6 cooler.
60mm TB
sard regulator
walbaro fuel pump
I've swap the eprom to different setup to suit smaller injectors 450cc and swap the injectors to stock - They worked fine on the car. Eventually I did swaps and trials between the 2 eproms with difference size injectors (450 & 560) regardless to what they were suited to.
The out come was:
450cc eprom with 450cc - work
560cc eprom with 560cc - don't work
560cc eprom with 450cc - work
Obviously the 450cc work better with suited eprom. As results showed I made the assumption it was the 560cc injectors (yet I did get them flush, did not fix the problem) and bought another set. They did not fix the problem its just spools noise but doesn't move till late revs.
Any suggestions?
Atm it's got no power kicking in till late revs (4500-5000) I hear the spooling at 2500 but its keeps spooling and holds then once at those late revs in just kicks - epic lag
Mods I've got running are
vr4 motor
Full 3" mandrel exhaust with high flow cat and magnaflow muffler, along with driven performance manifold and 38mm tial external wastgate.
HKS SSQV bov
Evo 7 560cc injectors
Eprom chip for fuel/boost cut, 560cc injectors, 055 maf etc
14b turbo
055 maf with pod
2.5' IC piping with evo 6 cooler.
60mm TB
sard regulator
walbaro fuel pump
I've swap the eprom to different setup to suit smaller injectors 450cc and swap the injectors to stock - They worked fine on the car. Eventually I did swaps and trials between the 2 eproms with difference size injectors (450 & 560) regardless to what they were suited to.
The out come was:
450cc eprom with 450cc - work
560cc eprom with 560cc - don't work
560cc eprom with 450cc - work
Obviously the 450cc work better with suited eprom. As results showed I made the assumption it was the 560cc injectors (yet I did get them flush, did not fix the problem) and bought another set. They did not fix the problem its just spools noise but doesn't move till late revs.
Any suggestions?
