Spec me a cam for a high compression 347
Don't trust your nose (or a tuner's) to dial in your A/F ratio. I understand widebands being out of service, so this is in no way a shot at your tuner BTW. But we hear it all the time that a car smells rich and a customer wants a re-tune. I assume you're running off-road pipes. It's going to smell gaseous with the overlap you're running and no cats!
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COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
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POWERBOND - ASP - AND MORE!
Don't trust your nose (or a tuner's) to dial in your A/F ratio. I understand widebands being out of service, so this is in no way a shot at your tuner BTW. But we hear it all the time that a car smells rich and a customer wants a re-tune. I assume you're running off-road pipes. It's going to smell gaseous with the overlap you're running and no cats!
I didn't pay full price due to the a/f being out, but I definately want it re-tuned with a working wideband, and I am going to change plugs before I get it done, we'll see where it stands after that.
It might be a few weeks, finals week is coming up and I've got a ton of work to do.
Fuel probably has a lot to do with it. Take it over to LMR for the tune. They did a good job on my car, and it's a 98... I plan on taking it back with the new setup I'm building. I've heard their dyno reads a little lower than some in the area, but it works very well for tuning.
Fuel probably has a lot to do with it. Take it over to LMR for the tune. They did a good job on my car, and it's a 98... I plan on taking it back with the new setup I'm building. I've heard their dyno reads a little lower than some in the area, but it works very well for tuning.
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The cam is probably not the problem unless it's at some funky intake centerline. I'd highly recommend taking your car to a reputable tuner, one who has a load-bearing chassis dyno and make sure you put the wide-band O2 sensor in a bung just after your headers vs in the tailpipe. You'll get a much more reliable reading. I've seen some really jacked up tunes coming out of Houston that had terrible air/fuel ratios.
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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.
Sadly there's only a few shops that have good tuners in the Houston area. For me personally I feel that I don't really have any other options than learning to do it myself.
No, I didn't have to sign any waiver. The guy who tuned my car has tuned it 3 or 4 times before and I have had zero issues. The air fuel reading was not working on the dyno that we used, and he would gladly redo the tune for me on a dyno where everything is working correctly.
I doubt it is a dead coil. I would think that would be pretty easy to hear that something was wrong.
I've had a car on the dyno before making close to 600 then dropped a coil lost 80rwhp instantly. Should no signs in the data logs and you can not hear anything. Car still ran and idled - a little rough but wasn't blatantly obvious that a coil failed.
Wow, what a mature post.
No, I didn't have to sign any waiver. The guy who tuned my car has tuned it 3 or 4 times before and I have had zero issues. The air fuel reading was not working on the dyno that we used, and he would gladly redo the tune for me on a dyno where everything is working correctly.
I doubt it is a dead coil. I would think that would be pretty easy to hear that something was wrong.
No, I didn't have to sign any waiver. The guy who tuned my car has tuned it 3 or 4 times before and I have had zero issues. The air fuel reading was not working on the dyno that we used, and he would gladly redo the tune for me on a dyno where everything is working correctly.
I doubt it is a dead coil. I would think that would be pretty easy to hear that something was wrong.
TECH Regular
Joined: Jan 2008
Posts: 458
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From: Bellaire, TX
very clean car though.
