Its a 305 .030 over
416 heads fully ported by me with stock valves, probably between 8.8 and 9:1 compression
214/224 .474 .498 cam
crankshaft oil wiper
edelbrock Torker II single plane
Edelbrock 600 cfm chokeless carb
edelbrock headers and full exhaust with no cat
T5 tranny
solid mounted torque arm
lca loweringbrackets
3.42 gears
Powertrax locker
no front sway bar, relocated battery, no AC, no rear seats or spare.. probably around 3100 pounds total or less
7747 ecm running the spark
firestone firehawks


Just got it running decently really... traction is still a major issue im fairly certain the lca bushings are toast, still wheelhopping but not as bad as it did before the lca brackets or torque arm mod that i did not mention

Was overseas but I had some goodies waiting for me, one of them was the new gtech competition, supposedly its far more accurate and it does have a bunch more features. Its a bitchin little gadget. The track is 150 miles from here and would require something like 3 hours of driving through blistering heat to get possibly 3 maybe more like 2 runs in between all the imports puking oil on the pad. They talk a good talk on their webpage about the improved accuracy, I buy it.
I was planning on Gteching it at night when it got cool. Well i got impatient and I decided to gtech it in the middle of the hot florida sun.. probably upper 80s outside

I got two runs in, back to back with zero preparation, windows open and everything. No inflation changes, and wheel hop prevalent, car is a 5 speed and i havent driven it in over two years save for a week or two about a year and a half ago

I will let them speak for themselves

This is to all of the haters out there

First run
60' 2.380
330' 6.189
1/8 9.293 @ 80.84
1000' 11.944
1/4 14.170@101.92
Second run immediately after first, not even a minute to cool off (car got hot)
60' 2.356
330'6.145
1/8 9.228 at 81.47
1000' 11.864
14.080 at 102.33

this thing also reads rpm and calculates hp, i put the weight of the car with me in it as 3270 , its a light car

I think the hp calc is a little off or something (i need to read the manual) it gives two numbers in one screen it said 180 and in the other (hp vs Time) it gave 230
anyhow peak hp was at 5519 rpm and peak torque was at 4569 rpm

and everyone said my combo was flawed! AHahhahahahaah with a good hook this thing with NO FANCY poopie at all should hit 13.5's! its still wheel hopping too, i need new bushings


Im still looking to find out whether or not the new gtech measures mph like the old one.. my educated guess is that it does not since ive driven my buddies 95 cobra to a 14.4 at 104 mph with a good launch (the car was basically stock) on the older style gtech

also Gtechs webpage only states the gtech pro measures mph higher than the track and does not mention anything about the gtech competition model having a similar feature (problem?)

another thing, a guy that used to be around here had a very similar combo to mine ran a 14.0 at 101 before with IIRC a 2.0 60 foot

Time to really dial it in now 13s with the 305 here i come

Pablo

 

The new g-techs are pretty darn accurate according to my friends definately worth the cash. The only thing that I don't like about them is that they calculate mph differently than a track does ...

 

the new ones calculate mph differently? where did you get that info because ive been searching all over for it i havent seen it in the manual

 

*shrug* it's still a G tech time. I believe in them almost as much as I believe in Desktop Dyno.

 

haha Denial is not just a river in egypt....





Stay tuned for 13 second runs holley boy

 

btw thats GtechPro - Competition (tm)

www.gtechpro.com

 

The G-Tech measures your speed at the 1/4 mile mark whereas the track measures your speed by timing the last 60' and determines the mph for how long it took you to go that 60'.

 

again to reiterate, show me where you found that because I'd like to know for certain.

I have a feeling though that you are getting confused with the original GtechPro which I do not have. I have the expensive badboy that senses RPMs, gives graphed hp curves, and links up to a computer

Ive looked all over their website and in the manual, and the only mention of the mph being different than the track is for the old Gtech. Ill find out for certain today.

 

I found it somewhere online in a forum discussing the new ones. I could have sworn G-tech had it on their site though. If you find out for sure, let us know. I was going to buy one earlier this year, but decided to wait until this spring to get it.

 

I should email them but I think i have it figured out and it looks like it determines your trap speed like the old one does andgives you your actual speed

I figured this out by doing a little math and figuring where I was at the 100mph speed mark which was about 56 feet from the finish line. The average for the last 100 feet on my run which is as I understand it how the track does it is a little over 100 mph

 

From http://www.nhra.com/basics/basics.html :

"Speed is measured in a 66-foot "speed trap" that ends at the finish line."

 

Sorry, I was off by 6 feet... I knew it was somewhere around there though....

 

in that case my trap speed is probably closer to a little over 101

 

I don't really trust the G-Tech to give me a dead-on accurate time/MPH. HOWEVER........ using it to compare improvement from mod-to-mod it is an excellent tool. I've borrowed them from time to time and their repeatability on identical runs on the same stretch of road is very reassuring.

 

A question was asked recently on the racing forum that required research for the exact answer. That's why it was fresh in my mind - otherwise, I wouldn't have had a clue which was right.

Assuming constant acceleration across the trap, the time slip is actually giving you your speed something a little more than 33' from the finish line.