Where to Set Timing for Max Power
10-04-2008, 10:05 AM
#1
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Where to Set Timing for Max Power I have a 2000 Camaro with Patriot LS6 heads,(224/224 .581 lift cam),3600 Stall,3.27 gear. 125 Wet Harris Plate Kit. My timing is set at 22 degrees right now.
I ran last night 10.90 in 1/4 mile,12.4 on motor...... 60 foot 1.65....
My old tune was set at 27 degrees and ran 11.7 on motor,never tested on nitrous..
My question is can I set the timing back to 27 degrees and be safe? maybe add racing gas?
Any suggestions?
I ran last night 10.90 in 1/4 mile,12.4 on motor...... 60 foot 1.65....
My old tune was set at 27 degrees and ran 11.7 on motor,never tested on nitrous..
My question is can I set the timing back to 27 degrees and be safe? maybe add racing gas?
Any suggestions?
10-04-2008, 11:39 AM
#2
Do not run 27 degrees of timing with nitrous unless you're running pure race gas. Nitrous burns the charge much quicker and you need to retard your timing so you still have peak cylinder pressure in the 13-15 degree ATDC range. If you don't retard, you risk having peak cylinder pressure close to when your piston is at top dead center. With the rod almost vertical, it will have no leverage on the crank and parts will begin to break.
High octane race gas will slow the burn somewhat, but it's still best to have timing retarded an appropriate amount.
High octane race gas will slow the burn somewhat, but it's still best to have timing retarded an appropriate amount.
__________________
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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
