Speed Density and Timming?

Michael Smith · 06-14-2007, 07:38 AM

Car is an 88GT it has a GT40 intake, shorty equal length headers, 1.6 roller rockers, and a B-cam they are the only mods all the rest is stock. Any suggestions on how much timming to start bumping up with. At this point the timming is at 14 spout connector disconnected but realy how much timming do you think it can take before it losses power just looking for the range say 12-16? Thanks for any help.

USMC302 · 06-15-2007, 10:25 AM

Keep bumping it up until it pings, then back it off 2 degrees, that's about all your gonna get out of it with the current octane your running, if you step up to 93 ans stick with it, the timing will go higher until pinging....good luck.

tmoss · 06-17-2007, 09:10 AM

What idle do you have to set to get the SD to idle with the B cam?

06-14-2007, 07:38 AM	#1
Michael Smith Registered Member Join Date: Feb 2003 Location: Washington Posts: 33	Speed Density and Timming? Car is an 88GT it has a GT40 intake, shorty equal length headers, 1.6 roller rockers, and a B-cam they are the only mods all the rest is stock. Any suggestions on how much timming to start bumping up with. At this point the timming is at 14 spout connector disconnected but realy how much timming do you think it can take before it losses power just looking for the range say 12-16? Thanks for any help. __________________ New 302 block, Probe forged pistons,Moly rings,I-beam rods,Main girdle,Canton 7Qt pan,B-cam, Edelbrock 6037's ported/decked,Exploder upper/lower ported,#24 inj,190lph fuel pump,70mm tb,73mm maf,MSD dist/coil,6al box,3.73's,Steeda lca's,QA1 k-member,subs,strut tower brace.

06-15-2007, 10:25 AM	#2
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	Re: Speed Density and Timming? Keep bumping it up until it pings, then back it off 2 degrees, that's about all your gonna get out of it with the current octane your running, if you step up to 93 ans stick with it, the timing will go higher until pinging....good luck. __________________

06-17-2007, 09:10 AM	#3
tmoss Registered Member Join Date: Mar 2003 Location: Saint Louis, MO Posts: 634	Re: Speed Density and Timming? What idle do you have to set to get the SD to idle with the B cam? __________________ Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/

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