Inconsistent Runs [Archive] - GrandAmGT.com Forum

PDA

View Full Version : Inconsistent Runs


xxbackhillxx
11-15-2004, 07:08 PM
can anyone make sense of how i pull a 2.1 60 foot, 90.20 mph trap, and only pulled 15.445. yet on a seperate run i do 2.3 60 foot, 90.87 trap and run 15.327? could it be the bricks i have as wheels?

2002GT
11-15-2004, 07:11 PM
9.3 is nice...

my friend ran a 9.4 in his gtp and ended up running a 14.5 in the 1/4

H.O. Driver
11-15-2004, 08:57 PM
Where did you run at? Is that all you have is CAI, 180 t-stat, and exhuast? That 9.3 1/8th mile is pretty insane if its right!

kubiache
11-15-2004, 09:02 PM
The 18s aren't helping, that's a start.

EDIT: If that 9.3 1/8 is correct, food for thought: My best was a 9.645 on my 14.8 run.

MetaGTP1
11-15-2004, 09:35 PM
can anyone make sense of how i pull a 2.1 60 foot, 90.20 mph trap, and only pulled 15.445. yet on a seperate run i do 2.3 60 foot, 90.87 trap and run 15.327? could it be the bricks i have as wheels?Your 1/8 speed is great, but the top end is weak. You should be at about 14.7 1/4. Heavy wheels could knock a couple of tenths off of your ET.

xxbackhillxx
11-16-2004, 04:35 AM
^ my bad that 9.3 time is really 9.932, sorry. got dyslexic (sp?) for a while and put the 9 in the wrong spot. none-the-less, idk how i bust a 2.1 60 foot and go slower than my 2.3 60 footer, and the trap speeds were about .6 mph apart.

edit: i was told at the track by some people that with a 90 mph trap i should be hitting 15.0 flat, so is my top end just dying? went to lapeer dragway btw.

also, shout-out to nikki, new best et. 14.6 woo woo.

MetaGTP1
11-16-2004, 07:05 AM
^ my bad that 9.3 time is really 9.932, sorry. got dyslexic (sp?) for a while and put the 9 in the wrong spot. none-the-less, idk how i bust a 2.1 60 foot and go slower than my 2.3 60 footer, and the trap speeds were about .6 mph apart.

edit: i was told at the track by some people that with a 90 mph trap i should be hitting 15.0 flat, so is my top end just dying? went to lapeer dragway btw.

also, shout-out to nikki, new best et. 14.6 woo woo.Yes, a 90 mph trap speed should yield about a 15.0 1/4 time. I think your problem is the top end. All GA's have a dead spot near the top end. A DHP PCM would take care of the shifting and power lulls. :)

Nikki
11-16-2004, 07:22 AM
also, shout-out to nikki, new best et. 14.6 woo woo.


woot thanks Tom!!
Yeah I had some messed up times myself...my car won't take off...my 60fts SUCK! I ran that 14.6 at 101 mph...if I had my 60fts down I should be at low 14s.

atc3434
11-16-2004, 07:53 AM
Yes, a 90 mph trap speed should yield about a 15.0 1/4 time. I think your problem is the top end. Al GA's have a dead spot near the top end. A DHP PCM would take care of the shifting and power lulls. :)

I dunno if you've tried, but you can wrangle about 5-7 more mph out of second before letting it go to third if you manuel shift. If you notice, third usually comes at 5500rpm, but if you manuel shift at say 5800, you can pull a little more out of it, and be a little farther up in the power in third. GA's come out of the hole pretty good, but the long gears really hurt them.