FAST Tuners, I need some tech help

[parsonsj]

Listen to Jody!

I learned my lesson on a MEFI car last year. Turn off all the compensatory tables, and get your hot start working, using the cranking fuel vs temperature table. Then get your cold start working, and set the idle speed with just a touch of IAC. Then bring in the timing tables, and last: bring in the CTS compensation. If you try to get it all working at the same time, you'll be in an endless tail-chasing game.

[67ragtp]

Thanks Jody, it looks like I have 42ms @ 73 deg f , its a normally asperated SB engine with a small hyd cam and big cubes 427 inch. Which direction Do you think I should go?

Thanks again Rich

[parsonsj]

Rich,

You didn't ask me... but I think 43ms is too high. What size injectors do you have on the car? Does your car seem "loaded" when it does start (lots of black smoke out the tailpipe)?

[67ragtp]

John, They are 42lbs injectors, cam duration 244/252 @ .050 and 112 lsa. Doesn't really seem like it fires black smoke.

[camcojb]

Originally Posted by 67ragtp

Thanks Jody, it looks like I have 42ms @ 73 deg f , its a normally asperated SB engine with a small hyd cam and big cubes 427 inch. Which direction Do you think I should go?

Thanks again Rich

Originally Posted by parsonsj

Rich,

You didn't ask me... but I think 43ms is too high. What size injectors do you have on the car? Does your car seem "loaded" when it does start (lots of black smoke out the tailpipe)?

yeah, looks way high to me. Does it start easier if you crack the throttle slightly? I'd start chopping it down a lot, mid 20's maybe to start.