Hey guys,
I have a 97 SS w/ built 350 8:1 compression and 12# of boost. I have a MSD 6al with the Boost timing master ad-on box... When I run the motor up it misses at about 5300rpm.. I was told the MSD 6al output was causing the Opti to miss a rotation of the motor... The Opti and motor are Brand new.. less then 50 miles on them... What timing retard box can I use that doesn't amp the signal like the MSD 6al or 6btm? Anyone have a problem like this? Thanks for the help!

-Jay

 

What plugs/gap are you running? Are you sure it's not fuel related. I have a 6AL and works fine to 6200.

J

 

I'm running NGK TR60 gapped at .35... Fuel seems fine it misses at 5300rpms and is fine at about 5400... on the Dyno graph there is a gap between 5100 or 5200 and 5400rpms. It looses the Ignition signal.

Thanks,
Jay

 

also... The Dyno graph looks really rough when I have the MSD hooked up (ie. /\/\/\/\/\/\)... then when I unplug the MSD the graph smooths out (ie.__________).

Thanks,
Jay

 

I have no idea if the timing reatrd box has anything to do with your problem, but as far as I am concerned the best method for controlling timing is through the PCM. Just adjust to the desired advance in the 95 and 100kPa area.

Rich