BBC 540 timing
#1
Junior Member
APPRENTICE
Thread Starter
Join Date: Jul 2007
Posts: 21
BBC 540 timing
Hello to all , I have a 540 bbc in a 67 camaro that will be used for street and strip, The car is all steel with inner fender wellsand a glass hoodcar is tubbed with a 4 link dana60 with 4;10 gearing ,31x 16.5 tire. the engine is 9;6.1 comp . heads are brodix bb-2 plus ported and flowed at .700lift 377 on int. 276 on exh. intake is brodix hv2000 with a quickfuel 950 p series carb. cam is a solid roller isky 276@050 ,.313 dur., .730 lift .110 centerline cam is degreed in at 106.375 of a degree.with.097 '' valve to piston clearance ignition is msd 6-al ,distibutor msd mech it is locked out and timing is at 34 degrees. trans is 400 turbo manual coan 3800 stall custom race convetorevry thing is brand new just got the car together.What is the best way to find the right amont of timing for this engine combo? thankyou for your time
#2
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Posts: 4,137
The best way is to tune it on a dyno. The poor man's way is to take it to the track and find the spot it works best at.
I have a 13 to 1 540 with -2x heads and I run mine at 38 deg locked. It's Never been onn a dyno just where it seems to run good.
I have a 13 to 1 540 with -2x heads and I run mine at 38 deg locked. It's Never been onn a dyno just where it seems to run good.
#3
Senior Member
MASTER BUILDER
Join Date: Apr 2009
Location: B.C. Canada
Posts: 145
I was just down at the local dyno asking the same question for my 496, I'm on a budjet and cant afford a day on the dyno, so the owner and I looked over all of his bbc dyno sheets. most made best power at 38. What was interesting was the difference from 35-38 on most 700hp big blocks was only 2-4 hp. I've locked mine at 36.
cam67152
cam67152
#10
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
Originally Posted by russ67chevelle
any time u make changes a dyno is only a tuning aid!!!
take the car down to the track, search for best mph!!!
take the car down to the track, search for best mph!!!