fazm

here in phoenix, most stock gt's i see are running 14.0 or so with a good driver, and plenty in the 14.5-15.0 area. i ieven did a heads up race against my tuner (has an 05 gt auto with exhaust cutouts and a tune) and beat him. modded gt's here are pulling mid 13s, to about 14.0. and the f/i'ed gts here are running between 12.4 and 13.0

I was just messin around with density altitude correctiono factors this morning, and my 14.50 run is about a 14.01 with a DA of 400 (what most places see on a cold night).

Puerto Rico 4.6

I agree with fazm .......that is what i see at my track also on 05 GTs . Denny i dynoed 201 hp and 216 tq with cai, exhaust and an 89 tune...those numbers were good for a 14.63 at 92. You are on the right track ...just keep at it. Good Luck.

fallfast90

You can beat 04's and down, they run low to mid 14's, as fazm has done with bolt-ons. Thats if those gt's are stock and dont have such a good driver. It does take some work though and you have to be a fairly decent driver aswell.

imyy4u

i ran a 13.498 in the 1/4 bone stock to the stock airbox/filter and tires. not even synthetic oil or premium gas was used.

i guess i'm the exception, huh? about 750ft elevation, too...

in CHICAGO at least, doodad and i are putting down 13.4's bone stock. you must have the ****tiest GT drivers EVER in your area.

boss 244

You can get where you want, it just takes money. I just installed the powerhouse driveshaft and wow, what a difference. My local track closed so I can't get back to see how much of a difference, but it 'feels' like more of an improvement than any other mod aside from the right tune. I am running 14.32 without the new driveshaft or upper link. I don't have a problem with anything but cobras (no contest) and better driven GT's

fazm

just for a comparison, chicago's DA 2 weeks ago at track time (lookin up the weather report) was about 1430DA, while here in phoenix it was 3600DA.

ricklmesa@cox.net

Its real challenging to race out here in Pheonix at Firebird! lol My best is a 14.31 at 99mph Im hoping to get some more runs in this winter. Its starting to get cold over here in AZ finally!!! Boost is great.

rygenstormlocke

Well, 99MPH is a 13.6 or 13.7 run. I ran 13.6@99MPH on street tires when I was on 100 shot of nitrous.

imyy4u

sorry for my ignorance...but what is DA?

fazm

DA is short for density altitude.

its a a # reached by factoring in altitude, temp, humidity, and barometric pressure.

its the only true equalizing thing, since altitude is only one factor. Temp makes a huge difference as well, it and altitude are probably the biggest factors of what ET you will achieve.