two problems when street tuning..

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dirtydseries
Posts: 12
Joined: Wed Feb 28, 2007 9:25 pm

two problems when street tuning..

Post by dirtydseries »

ok here it goes

started street tuning d16z6 gt30 turbo 750cc injectors 3 bar map

while i datalog i seem to keep getting a map sensor cel code ever other minute..?? i dont know why just when i datalog..

the other is im only running 9psi at the moment..
my injector duty cycle at 9psi at 5500rpm is like 98% and afr is 11.8

why are the injectors maxing out.. they are good for like 600whp..

i used the same injectors and everything on crome pro and it worked fine.. anyone got any ideas?
dirtydseries
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Post by dirtydseries »

noone~!!?
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Spunkster
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Post by Spunkster »

Post your datalog and calibration
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Post by Spanky »

please post calibration. i would like to compare to my own d series settings. same as yours except i used a to4e 60 trim. and i ran 22 psi
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gSIr
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Post by gSIr »

did u make sure u adjusted for your injector size, also what fuel pressure are you running? Posting your calibration will help greatly
scttydb411
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Post by scttydb411 »

what fuel pump are you using? what fpr are you using? i would suspect your issue is pressure/flow.
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dirtydseries
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Post by dirtydseries »

i fixed it it waS MY MAP sensor settings i changed from msd 3 bar to motec and boom everyhting went rich as hell.. adjusted it now at 9psi im at 52% duty
dirtydseries
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Post by dirtydseries »

scttydb411 wrote:what fuel pump are you using? what fpr are you using? i would suspect your issue is pressure/flow.
walbro255 and stock fpr readiong 48psi fuel pressure drops to about 43 in boost imma get a aftermarketand bump it up a few psi like to 50
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Post by QUICKSILVER RACING »

dirtydseries wrote:
scttydb411 wrote:what fuel pump are you using? what fpr are you using? i would suspect your issue is pressure/flow.
walbro255 and stock fpr readiong 48psi fuel pressure drops to about 43 in boost imma get a aftermarketand bump it up a few psi like to 50
when in boost your fuel pressure should rise higher than 48 psi. at 45 psi static pressure and 15psi boost then the actual pressure should be around 60psi.

Check your fuel system.
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