GtoSpd

iTrader: (2)

Last time out I was able to hit a 12.2 at 114 on a 1.87 60'. Density altitude was -500'. Gotta love good air! Today the DA was at 1535', and the best I could do was a couple 12.5s at 112 MPH and two 12.4s at 112 mph. All 60' times were in the high 1.9s. My car is full exhaust, tune, lid with FRA, and 3.73s. Still running the stock stall converter and street tires. I gotta get a bigger stall in this thing. A cam would be nice too.

TravisMcGill2000

iTrader: (2)

Great times. Get ya some sticky tires and let it eat.

moge11

so what was your 1/8 on these runs???.. thats some good info though... I know i ran at 1422' when i ran my 8.37... just curious as to what i can reallyy expect in some good air

GtoSpd

iTrader: (2)

All 8.0 at 88 MPH and one 8.1 at 87.8 MPH. Good DA makes a huge difference, but my 1/8th mile runs at -500' were only a hair quicker at 7.89-7.98 at 88-89 MPH. Looks like it suffers a lot more on the big end from the DA change.

One other detail. I was pinging over 5500 RPM, had to get gas at an unfamiliar station....not sure how much if at all that effected anything.

JWStevens

iTrader: (1)

As much as I don't feel like it I need to start keeping track of the DA! My car fell off .2 in a week and I don't really know why because I never keep track of it.

thunderstruck507

iTrader: (18)

Most likely it affects the top end more because the hot air reduces the gains from the ram air setup.

I'm starting to think that's a big reason my car looks lazy on the top end: no cool/ram air

JWStevens

iTrader: (1)

Its just amazing to me that it actually hurts cars as slow as mine. We have a weather station in the race car trailer but I didn't figure I would need it to just go play with this LS1 car.

thunderstruck507

iTrader: (18)

IIRC a slower car should be even more affected than a real race car. Maybe not as a percentage but in the sheer ET/MPH numbers.

JWStevens

iTrader: (1)

I'm def starting to believe it.

GtoSpd

iTrader: (2)

DA is truth. My car at 6,000' would do good to run mid 14s.

JWStevens

iTrader: (1)

Well, I think I'm gonna just start lying about the DA on my time slips instead of the times....lol! GtoSpd where do you live?

GtoSpd

iTrader: (2)

Raleigh, NC, but I run about an hour away at fayetteville Motorsports Park.

JWStevens

iTrader: (1)

Its pretty humid there huh?

GtoSpd

iTrader: (2)

It gets very humid during the summer, usually 90-100%. Yesterday was 80 some percent humidity. Hate that kind of heat man....sweat standing in the shade, lol.

JWStevens

iTrader: (1)

Same here! Nobody wants to race until it gets dark.