MaxPower
Senior Member

Registered: May 2001
Location: STL
Posts: 1158


(see above for airport code)

 

Your speeds sound about right given the heat and humidity.

If you could run in 35 degree / dry air you'd crap your pants.

Rich

 

Rich!

I was thinking about emailing you. I may be going to REM in the weeks to come. I believe my fuel curve is okay, but my timing is conservative at 16 degrees, but that's also because I need to get off my butt and change the plugs to colder ones.

Anyway, so how much timing are you getting away with? And what brand/heat range plugs are you running?

Reason I ask is, your truck is flat out haulin' @ss.

 

The car is a 90 GT with a 306, edelbrock heads, f-303 cam, cobra intake, 1.72 rockers, 24ib inj., Pro-M maf, long tubes, stock throttle body ( I know, I know), built rear with 355's, and a tremec. The suspension is mostly stock though with lowering springs up front but it ran 106 with the original 150,000 mile 302 and stock cam. I can't imagine what is slowing this car down.

 

CONGRATS Blown347Hatch

106 IS NOT a bad MPH at all, and you ET is great for the conditions. Schitt I got faster 12.7's with less MPH that that.
YOU HAVE THE POWER
and you WILL run faster with that set up, CONGRATS AGAIN

 

Thanks Mr. "Timing!"

Speaking of timing, since I'm running 16 degrees (stock plugs still), I'm going to go 2 heat ranges colder and bump the timing up to 18 degrees. I'm hoping for no detonation.

 

Like everyone else has said you are pretty close to what you should be running.

Apten w/4# lower
JLP tuned predator @ 18 degrees timing
Denso IT22s
F1's

Ran this at LightningFest one night it was high 60's low 70's on the temp gauge:

60' - 1.997
1/8 - 8.356 @ 85.25
1/4 - 12.97 @ 106.76

I run the 18 degrees of timing on 93 pump gas all day. Not sure if your truck would be any different since I have a 4# lower and Denso plugs. Good luck

 

don't be disappointed, you are right on the money. 70 percent humidity will drop your mph.

With a 6lb lower, in good air, you should be around 108mph

 

Thanks for the info, nightcrawler!