Spec me a cam for a high compression 347
12-01-2008, 01:49 PM
#21
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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12-01-2008, 01:55 PM
#22
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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.
12-15-2008, 09:17 AM
#25
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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.
12-15-2008, 09:42 AM
#26
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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.
12-15-2008, 03:07 PM
#29
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.
12-15-2008, 04:19 PM
#31
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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.
12-15-2008, 09:50 PM
#33
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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.
12-15-2008, 11:39 PM
#34
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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.
12-16-2008, 09:53 PM
#37
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.
04-16-2009, 05:33 PM
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very clean car though.
