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Old 03-15-2006   #1 (permalink)
YoshiBluedevil is offline Made Member


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Default Am I running out of fuel, air, or neither?

hey guys
what does this duno look like to u up top? are the injectors running out, or is it runnin out of air around 4500 rpm where the HP levels off and the tq starts to dive

Attachment 15034

any suggestions would help, and no i dont have a graph of the AFR thru the curve
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342, AFR185s, TKO500, TFS2 cam, 30# inj, 75mm TB, 77mm Pro-M, twEECer R/T, Typhoon Upper, tmoss ported lower, 3/8" Spacer, Magnaflow Exhaust w/ Bassani Catted-X and BBK UnEq Shorties, 3.73's, MSD 6AL, FRPP 9mm wires, 200A alt, U/L CA's, Eibach/UPR springs, Koni Yellow Adj Shocks, Bilstien Struts, ZOOM clutch, 94 cobra cluster, 94 export tail lights, 5 gauges, and more (too much to list)
396.7rwhp/450rwtq
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Old 03-15-2006   #2 (permalink)
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Need A/F to be able to tell.
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Old 03-16-2006   #3 (permalink)
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ok, well i dont have a wideband, but i have 2 summit racing $30 gauges with a color meter, and when i go WOT, it runs up to rich from thru the entire RPM range
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342, AFR185s, TKO500, TFS2 cam, 30# inj, 75mm TB, 77mm Pro-M, twEECer R/T, Typhoon Upper, tmoss ported lower, 3/8" Spacer, Magnaflow Exhaust w/ Bassani Catted-X and BBK UnEq Shorties, 3.73's, MSD 6AL, FRPP 9mm wires, 200A alt, U/L CA's, Eibach/UPR springs, Koni Yellow Adj Shocks, Bilstien Struts, ZOOM clutch, 94 cobra cluster, 94 export tail lights, 5 gauges, and more (too much to list)
396.7rwhp/450rwtq
http://www.cardomain.com/ride/546774
Eat Rice, Dont Drive It
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Old 03-17-2006   #4 (permalink)
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summit racing told me i just need a tune. the SCT tune i have now is from when i had a 76mm C&L, and an FRPP e-cam. now i have a 77mm Pro-M and a Trick Flow Stage 2 cam. i am with them, i bet the tune is off, so thats y the numbers level out so much. even the shitty AFR gauges i have would show if it was getting lean, and i never feel fuel cut or anything, so im betting its the tune, and maybe running out of air with the 70mm TB and crappy manifold with the high-flowing AFR185 heads
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342, AFR185s, TKO500, TFS2 cam, 30# inj, 75mm TB, 77mm Pro-M, twEECer R/T, Typhoon Upper, tmoss ported lower, 3/8" Spacer, Magnaflow Exhaust w/ Bassani Catted-X and BBK UnEq Shorties, 3.73's, MSD 6AL, FRPP 9mm wires, 200A alt, U/L CA's, Eibach/UPR springs, Koni Yellow Adj Shocks, Bilstien Struts, ZOOM clutch, 94 cobra cluster, 94 export tail lights, 5 gauges, and more (too much to list)
396.7rwhp/450rwtq
http://www.cardomain.com/ride/546774
Eat Rice, Dont Drive It
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Old 03-17-2006   #5 (permalink)
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YoshiBluedevil

I can't tel without a A/F graph.
If you can do data logging, and zoom into a 5-15 sec. 1500-6000 RPM pull, we can discuss the A/F ratio.

A safe method would just be to have SCT re-tune your (programmer) or the chip. That way your ECU is up to date and calculates for your mods.
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