NHRA Expands Factory Stock Showdown

[Bobby DiDomenico]

Originally Posted by Ed Wright

Tuning the computer on a normally aspirated EFI engine is NOTHING like adjusting the boost on a turbo. How in the world did you come up with that?
You can only adjust spark advance and air/fuel ratio. Like altering the advance curve in a distributor (something we have been doing for over 50 years) and changing carburetor jets and air bleeds, again something we have been doing for over 50 years. Biggest difference is the air/fuel ratio can be adjusted every 500 RPM or so. That, and no dirty hands. There is no magic there. I've been in business since Feb 1972, other than the incremental fueling adjustments, and incremental timing adjustments (very little-to-zero gains there if everything else is right) there is no power advantage to EFI computers.
The newest stuff is just crazy under-rated.

Ed,
Can the computers on these cars be adjusted cylinder by cylinder for things like retarding timing providing a better launch where a carb/distributor combination cannot?

[boster]

Bobby , FAST and Big Stuff 3 allow you to control timing at the launch, so you could retard your timing say 6 degree's and ramp it back in over a 2 or 3 seconds . Some system's you can control A/F for individual cylinders however most cars are not doing that yet but some are . These are all legal as all the newer 2008 -2013 cars came with computers and can make these adjustments

[KRatcliff]

Originally Posted by Bobby DiDomenico

Ed,
Can the computers on these cars be adjusted cylinder by cylinder for things like retarding timing providing a better launch where a carb/distributor combination cannot?

Not Ed, but a carb car can do all these same adjustments through the MSD either with an 8979 box, MSD digital, or the MSD Grid.

[Ed Wright]

Sorry, Ed was buried in work today. :-) Just got loose. What Kyle ^ said.
People do it all the time.
Never needed to pull timing back to launch. Something wrong there.

[boster]

Ed , have you ever ran a 1000hp supercharged CJ ? if so and that track is bad you pull timing to get it off the line . I would agree with Kyle dot files work the same way with MSD . Nothing wrong with the cars just a lot of power

[Ed Wright]

Never had to deal with 1000 hp on 9" tires. LOL

[KRatcliff]

Actually, the MSD set up to adjust the timing events is far better than what the FI cars can do with the ECUs such as the FAST XFI. The MSD can adjust the timing at far more events like each gear for example.

[Ed Wright]

Originally Posted by KRatcliff

Actually, the MSD set up to adjust the timing events is far better than what the FI cars can do with the ECUs such as the FAST XFI. The MSD can adjust the timing at far more events like each gear for example.

I know. Edwards was pulling 1/2 degree on each gear change. Enter how many RPM drop to pull timing, and how much. Can't wire them to the tranny or shifter, so they use RPM drop to identify shift points. I worked with that some a few years ago.

[Ed Carpenter]

Originally Posted by Ed Wright

Never had to deal with 1000 hp on 9" tires. LOL

Still waiting for you to hit the powerball Ed!

[Ed Wright]

Originally Posted by deuces wild

Still waiting for you to hit the powerball Ed!

:-)