V2 370CC Injector z32 MAF problem
Whats up org? I have a problem with my set up here
v2 2.87 6:1 fmu Walbro 255 Stllen Charge Pipe Stillen BOV 370 cc injectors z32 MAF Sard FPR At about 75% throttle it misses really badly in 1st 2nd and 3rd in 4th and 5th its fine. also it misses when I come on the throttle after up shift. I'm new to the and I dont have a clue so your help would be much appreciated. Thanks. |
Originally Posted by Solicitous
(Post 7750698)
Whats up org? I have a problem with my set up here
v2 2.87 6:1 fmu Walbro 255 Stllen Charge Pipe Stillen BOV 370 cc injectors z32 MAF Sard FPR At about 75% throttle it misses really badly in 1st 2nd and 3rd in 4th and 5th its fine. also it misses when I come on the throttle after up shift. I'm new to the and I dont have a clue so your help would be much appreciated. Thanks. |
whats your a/f and what spark plug gap are you running
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Did you changed to 2 step colder plugs and run a smaller gap?
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Is your car tuned? Lack of tune or your ignition is breaking up. whats your a/f and what spark plug gap are you running Did you changed to 2 step colder plugs and run a smaller gap? |
either get on the dyno, or get a wideband O2 set up. You are just shooting in the dark until you know your a/f
My car ran similar to what you are describing before I tuned it. |
OP,
No need for 2 step colder plugs. Get some 1 step colder copper plugs, and gap them at .034 |
+1 with the statement above
If this does not work I would switch to a 4/1 disk cause it sounds like your running super rich. BTW, please get a WB02 |
So lets get this straight go from step 2 to step 1 since i have them already what about just regaping them to .034??
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well that could be. it ran fine with the stock injectors till about 5k with stock injectors thats why i swithched
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Originally Posted by Solicitous
(Post 7752530)
So lets get this straight go from step 2 to step 1 since i have them already what about just regaping them to .034??
Also someone with a supercharger setup will know better but to me the car sounds like it's soo rich that it's bogging. With a wb02 or dyno you can confirm this but a walbro 255, 370cc and a 6-1 fmu in my mind equals too much fuel. I would just run 370cc inj, walbro 255, afpr at a 1-1 raise rate and at the least a safc2 and ditch the fmu or switch to a 4-1 disk |
Originally Posted by Solicitous
(Post 7752534)
well that could be. it ran fine with the stock injectors till about 5k with stock injectors thats why i swithched
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Thanks guys! The 4:1 did wonders!
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Do you know base fuel pressure and a/f ratio through the whole rpm range?
But good job setting it up. Should be much faster than before! |
You don't really need a fmu with those 370cc unless you are maxing them out.
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