down on power after headers
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From: Jefferson, Ga
down on power after headers I installed Pacesetter and 3" duals, no cats with o2 sims. The car runs smooth but at WOT it is almost flat but intermittently it will pull hard. The random misfire code comes on occasionally. I have changed the front o2 sensors with bosch no change. I dynoed the car Sat 346hp/359tq but it seemed flat. Is it pulling timing out or something? I have not had the car tuned b/c I am doing heads/cam later. Are the numbers about right?
Any help???
Any help???
Last edited by Pooter 00 WS6; May 31, 2005 at 12:56 PM.
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Random misfire code, on stock cam, after header swap.
Check and double check all of your wires/plugs. Then check them again. Make sure you get TWO clicks when plugging the spark plug wire into the coil packs and one solid click over the plugs. Also make sure every plug is in well while you are at it.
Check and double check all of your wires/plugs. Then check them again. Make sure you get TWO clicks when plugging the spark plug wire into the coil packs and one solid click over the plugs. Also make sure every plug is in well while you are at it.
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From: Jefferson, Ga
Originally Posted by blkZ28spt
Random misfire code, on stock cam, after header swap.
Check and double check all of your wires/plugs. Then check them again. Make sure you get TWO clicks when plugging the spark plug wire into the coil packs and one solid click over the plugs. Also make sure every plug is in well while you are at it.
Check and double check all of your wires/plugs. Then check them again. Make sure you get TWO clicks when plugging the spark plug wire into the coil packs and one solid click over the plugs. Also make sure every plug is in well while you are at it.
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From: Jefferson, Ga
Originally Posted by blkbird
Y pipr banging? Timing can be it if it is. My car felt the same way till i rigged it not to bang at WOT.
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Did you disconnect the battery during the install? Do you have a ported MAF? If so, your car will run very lean until you get at least 50 miles on it (to give your L-Trims time to relearn). This will make your power seem flat.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.