One thing after another, car stumbles in the 2-3 shift.
06-02-2010, 10:18 AM
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One thing after another, car stumbles in the 2-3 shift.
After switching from the 3.12 pulley to the 2.87 pulley, my car hesitates in the 2-3 shift and then continues as if nothing happened. By hesitate, I mean that it literally feels like it cuts all power and then goes back to normal in a split second....almost feels like the rev limiter but I have mine set to 7300rpm yet shift at 6500-6800. The only way it doesn't happen is if I short shift at about 5800-6000rpm, there it won't do it.
What could it be? The 1-2 shift is fine and the 3-4 shift is fine as well...it's just the 2-3 shift. It's not slipping or anything, it just hits a blank spot and then goes on.
What could it be? The 1-2 shift is fine and the 3-4 shift is fine as well...it's just the 2-3 shift. It's not slipping or anything, it just hits a blank spot and then goes on.
06-02-2010, 12:26 PM
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Hahaha....my injector duty cycle is over 100%!! Do you guys think that could be the problem...lol. I'm going to have to drop down to the 3.12" pulley.
I'm running 600cc injectors on the oem returnless system. Should it already be running out of fuel?
I'm running 600cc injectors on the oem returnless system. Should it already be running out of fuel?
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06-02-2010, 01:29 PM
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600 Inj and 2.87 i made up to 399whp on dyno dynamic in TX summer, no problem.
Sounds like tunning issue? Jared@uprev tuned my car at last, did put down 420whp with added stage 0 RFS. But jared mention i don't need it at my power level but if i have it's good.
Sounds like tunning issue? Jared@uprev tuned my car at last, did put down 420whp with added stage 0 RFS. But jared mention i don't need it at my power level but if i have it's good.
Last edited by Chef-J; 06-02-2010 at 01:32 PM.
06-02-2010, 01:31 PM
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I didn't log IPW with the 2.87 pulley but I have a log with the 3.12" pulley and when I calculated the IPW it came out to 93% on the 3.12"....I can only assume the 2.87 will be 100%.
Keep in mind I have no fuel return system...just the stock setup with a walbro and 600cc injectors. I checked out a fuel injector calculator and it seems to add up.
Anyone have 600cc or smaller injectors with no fuel return pushing 400+whp?
I didn't exactly put 400whp but after installing the cutout my car does seem to feel a lot better with it open then it closed ( I dynoed 360whp with it closed ).
Keep in mind I have no fuel return system...just the stock setup with a walbro and 600cc injectors. I checked out a fuel injector calculator and it seems to add up.
Anyone have 600cc or smaller injectors with no fuel return pushing 400+whp?
I didn't exactly put 400whp but after installing the cutout my car does seem to feel a lot better with it open then it closed ( I dynoed 360whp with it closed ).
