MTI STG 2e & G1 Cam LOW DYNO NUMBERS, why???
10-07-2005, 08:06 AM
#21
The dyno line looks smooth enough. Are you averse to leaning the AFRs out to say 13.2 in the high rpms and 13.8-14 in the low rpms, transitioning in gradient steps? This will get you a little more HP.
10-07-2005, 07:26 PM
#22
Maybe a few more but it's down at least 20 HP & TQ across the board.
N/A you want 12.7 - 12.8 on the dyno any higher than you take a chance of getting knock. I have seen this many times on the dyno.
On the street you will be about .2 - .3 leaner, a dyno just can't load a car like the real world does.
N/A you want 12.7 - 12.8 on the dyno any higher than you take a chance of getting knock. I have seen this many times on the dyno.
On the street you will be about .2 - .3 leaner, a dyno just can't load a car like the real world does.
10-07-2005, 10:24 PM
#23
I am running 13.6-13.8 all day long (through the summer, 4 months). The most KR I have ever recorded was .5 and I cannot get it to repeat with any significance. I am also running 26-28 degrees of timing in the high-rpms, a little more in the lower rpms. I have a DynoJet WB installed and I never see more then .2 difference (if that) in my dyno AFRs and street AFRs.
10-08-2005, 09:20 AM
#24
Often, sticking the Dynojet sampling tube up the tailpipe of a car gives a leaner reading than what's actually taking place. Sometimes as much as a full point lean. So if you target a 12.7 A/R ratio on the dyno, you may actually be giving the car 11.7 A/F ratio.
Try giving the car what it likes and see where you are. You may find that leaning the car will pick up some extra power.
Try giving the car what it likes and see where you are. You may find that leaning the car will pick up some extra power.
__________________
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.
10-11-2005, 03:17 PM
#26
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I have the G1 and AFR's, I'll post numbers once I get it tuned, I had one trip to the track since installation and it sucked. I hope this cam is not a flop! I swapped from the X1 for it, the X1 had too much lift for my milled AFR's.
Geeze, I hope I don't have to swap cams again.....
Anyone else have disapoionting numbers with this cam?
Geeze, I hope I don't have to swap cams again.....
Anyone else have disapoionting numbers with this cam?
10-12-2005, 08:14 PM
#27
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Originally Posted by 1BadMoFo
I stand corrected 
Please post your full list of mods, great numbers through cats, and especially if you don't have other things, such as a pulley...
Please post your full list of mods, great numbers through cats, and especially if you don't have other things, such as a pulley...
