well i went to the track friday night after installing 4.10s and truetrack from 3.23s and the best i got with the 3.23s was 15.6 and now with the 4.10s was a 15.5 is this right? and also when it hits 3rd at about 84mph it starts to vibirate whats going on?
2005 5.3 comp cam 220/220/581/581.lsa12...volant cai....3000 vigilante stall... 4.10s..Detroit truetrack lpp long tubes with ory to a flowmaster turndown 22"BOSS with 285/35s Nitto NT555s
Pinion angle might be off, or gears might set differently. Send me your 1/4 mile info and I will get you on the list
1951 3100
1984 C10
What are the 60' and 18th mile times?
hmmm... idk but i did a 15.6 with my stock gears and longtubes and tune....no stall or cam...im getting 4.10's next month... hope I see a little more than that.....Good luck on figuring it out!
Barks better than it bites......
Did you run the 15.6 in good weather? I have seen times drop by as much as a full second between the 105* Texas heat and a nice 50* night with low humidity.
The vibration thing is a huge issue. I know it killed me and my 60' times. I'm still chasing down a vibration in my driveline at about 5-10 mph. It has cost me some pretty good times. I'm trapping as high as 81.x but only cutting 2.15-2.20 60' times even with 26" ET Streets and a ss3600 torque converter.
Yeah, I would guess pinion angle. What was your trap speed?Originally Posted by duckysbht
EDIT: BTW the dubs arent helping you any. My 04 with a stock stall, 4.10's, headers, exhaust, and cam ran a 14.7 @ 97. So I would guess the wheels are killing you. And who tuned it?
ya this texas heat currently is killer... made a friends 400hp supra run 14.1's
my truck ran 15 flats when ive seen people with my setup run mid 14s or low 14s
02 Chevy EcSb Z71, 5.3, Helix Tb Spacer, AEM Brute Froce Intake, Msd 8.5 wires, NGKTR55 IX, B&M 25k Trans Cooler, Hypertech 160, Nelson Tune, Nelson Harness & Ls1 fans, Fully Built tranny, tb2600, 216/224 551/551 115LSA, yeller z06 springs, magnaflow, cut-out, hi-flow cats, etc...
OMG what was your trap speed and 60 ft?
my 60ft with 3.23s was 2.4 1/8 ET was 10.1 at 69mph 1/4 was 15.6 at 89mph and with the 4.10s my best was 60ft 2.3 1/8 9.9 at 70mph 1/4 15.5 at 86mph.both times its probly been in the uper 80's degrees. and as far as the vibirations is that because the driveshaft is spinning a lot faster then it used too? thanks for all the input so far.
2005 5.3 comp cam 220/220/581/581.lsa12...volant cai....3000 vigilante stall... 4.10s..Detroit truetrack lpp long tubes with ory to a flowmaster turndown 22"BOSS with 285/35s Nitto NT555s
60 ft is the main culprit, but you should be in the mid 90's mph for your 1/4.
The vibration is probably the pinion angle. When you installed the new gears maybe the pinion angle was off a bit. Or maybe the gears werent set up right. You need a live tune. And runs without dubs. that weather is not that bad.
next time you race, Brake stall at the line and spin the tires a tad when you take off. IMO its better to spin out of the hole than to bog. With the stock stall your bogging.
with your mods, your ET and MPH are off.
Who tuned the truck?
Last edited by ff_jeff; 08-17-2009 at 03:04 AM.
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