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-   -   advise on lowering track times. (https://www.gtcarz.com/chevy-gmc-70/advise-lowering-track-times-99143/)

aarontracy 07-25-2005 01:17 PM

advise on lowering track times.
 
the other night i took my Z to the 1/8th mile track and the best i could get was a 9.5 , i know the car is capable of a 8.9 but i couldnt hook up in 1st and 2nd gear. im just looking for a way to lower my track times and get me in the 8's. i was thinking about purchasing a 160 degree thermostat and a set of pullies for the car in hopes to get a small gain. i also think my airflow is a problem since i am running the stock intake and exhaust setup i dont think im getting enough air in or getting it out quick enough. i just bought a set of used drag radials off my friend which i hope will get me into the low 9's but like i said.. i want 8's.

i just wanted to know some brands and get some input on the things ive listed. im not sure if a 160 thermostat would start effecting other parts or w/e. any input will help.. thanks!

archemedes 07-25-2005 01:38 PM

more power won't help if you can't get traction, a 160 tstat won't do squat for times except maybe the first run, and that's if you start cold, not to mention the damage done from washing the cylinder in gas (it keeps the engine in cold start mode basically flooding it) change your intake, and exhaust you have to get air in and out more efficiently.Change your gear to a real steep one 1/8th mile is tough to get good times (and the numbers rarely translate to 1/4 from numbers I see on other sites)

FORCE_FED_Z 07-25-2005 06:11 PM


Originally Posted by archemedes
more power won't help if you can't get traction, a 160 tstat won't do squat for times except maybe the first run, and that's if you start cold, not to mention the damage done from washing the cylinder in gas (it keeps the engine in cold start mode basically flooding it) change your intake, and exhaust you have to get air in and out more efficiently.Change your gear to a real steep one 1/8th mile is tough to get good times (and the numbers rarely translate to 1/4 from numbers I see on other sites)

Actually a 160 t-stat will help with power if you get the fans temps lowered. I can get you dyno sheets that will prove that a motor that is upwards of 240 makes less power than one that is runnin around 195. But the 160 is useless without changin the temps your fans come on at.

For lowering your track times I would suggest upgrading your suspension to gain the addition traction.

p.s.- here's a nice little free mod for more traction at the track- disconnect your sway bar endlinks and you will gain more weight transfer which will equal more traction which should equal lower times..

Also- I would be content with a 9 sec time slip...except mine would be in the 1/4..

RFF 07-25-2005 10:20 PM

Slicks.:D

aarontracy 07-26-2005 01:13 AM

got drag radials for 25 bucks.... ill let you all know some times fri night or saturday.

archemedes 07-26-2005 10:09 AM


Originally Posted by FORCE_FED_Z
Actually a 160 t-stat will help with power if you get the fans temps lowered. I can get you dyno sheets that will prove that a motor that is upwards of 240 makes less power than one that is runnin around 195. But the 160 is useless without changin the temps your fans come on at.

For lowering your track times I would suggest upgrading your suspension to gain the addition traction.

p.s.- here's a nice little free mod for more traction at the track- disconnect your sway bar endlinks and you will gain more weight transfer which will equal more traction which should equal lower times..

Also- I would be content with a 9 sec time slip...except mine would be in the 1/4..

195 yes, my 350 runs at 200 at the end of a run with a 185 t stat I tried the 160 and it ran 180 by the end of the first run, and if I didn't do a full cool down was at 200 by the second run, my times were slower by about 4 tenths at the lower temps, now fuel injection it dumps more gas

97z2801ss 07-26-2005 01:51 PM

Why have more power if u cant hook up? Id get Intake / exhaust and a few suspension mods Tq arm, LCAs...


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