Tokez420

went to the 1/8th track best time was:
R/T 1.045
60' 2.373
330 6.751
1/8 10.377
MPH 68.48

what do people think i would run in the 1/4??

02 silverado ext cab 3.73 gears
50 series flowmaster
UPD
descreened MAF

KeukaZ71

your 60' times aren't bad for a EC. your 1/8 mile is a little slower than it could be at. your truck would pull alot harder in 2nd gear for ya if you programmed the shift points. keeping it in 2nd gear longer should improve your 1/8 and 1/4. i have a 4x4 EC and my 1/8 is around 10.2 at 73.8 mph. my quarter usually comes out to be 15.6 at 91 mph. so you might be in the high 15's

graygmc

a good rule is to muliply your 1/8th mile time by 1.56. so your 10.377 will be about a 16.18.

Tokez420

i guess a Hpp3 would be a good next mod for the shift points? are they and good for more power or just for the shifts points?

KeukaZ71

for me it was hard to tell if there was more power or was i just feeling what should of been there by adjusting the shift points. for the most part i guess you can feel a slight power gain due to the tuning and timing adjustments. it is real fun stomping on the throttle at about 50-60 mph, bcause you'll hit 85-90 mph in no time flat in 2nd gear. some will probably have a different opinion than mine. and i have a feeling that they will suggest getting a different programmer (more $$$$) since you will be able to go a long way with it and do many more mods. i guess it depends on how far you want to go modding your truck. if you plan on having mods like mine (exhaust and filter kit) you can save money by getting the HPP3.

Tokez420

oh i forgot to say its a 4.8L i would rather have the diablo but its almost double the price and i have to use high octane, and with gas prices in cali right now ill just buy the Hpp3 and then sell it if i wanna upgrade later

MarineBlue03GMC

I would save your cash for a Diablo. I just got one for my 03 and so far I am very impressed. I live in cali too and know how the gas prices are, BUT its worth it!

The Diablo is worth the price just to remove the dreaded torque management which it really does. The raised revlimit, top speeds, real time diagnostics/data, code scanning abilities, and more are all REALLY worth the cash.

Im going to Palmdale LACR FOR SURE this Friday night to see if I get some lower quarter times with the Diablo.