heads/cam + 150 n20

QCKZ28
04-04-2004, 04:08 AM
ok, i contemplating buying a wet NOS kit and spraying 100-150 shot. i have a walbro 255lph pump already, would this be adequate? what else would i need?
it has a WOT switch, i will get a Fuel pressure switch, and a window switch to only spray from 3400 to 6000 (i shift at 6500)

i also dont plan to spray in 1st gear, my stock 10 bolt would explode :)

any tips or suggestions?

jesse

Derrick Redd
04-05-2004, 08:03 AM
I'm running heads, cam, 175 shot. :D I've had no fuel issues with the 255lph intank at this power level. I also spray it out the hole for maximum ET gain. I've only broken one set of gears in 3 years. :cool:

andy katzelis
04-05-2004, 01:40 PM
I don't have the heads and cam, but I do have a stock fuel pump, and I dry spray 150 with slicks on an all stock TH350 94 bird. I went 11.52 @ 115.98 with a 1.55 60'. The stock pump appears to be at its limit. Don't try this without editing the PCM.

Another car I tuned has a hot cam, stock pump, and a stock rear end, with a 100 shot and nittos, it went 11.70 @ 116mph.

The stock stuff is tougher than you think.

bigdreamZ
04-05-2004, 01:42 PM
Derrick what are the specs on the cam you are running?

Also was that 11.03 run on the 175 shot?

Bersaglieri
04-05-2004, 03:36 PM
Originally posted by Derrick Redd
I'm running heads, cam, 175 shot. :D I've had no fuel issues with the 255lph intank at this power level. I also spray it out the hole for maximum ET gain. I've only broken one set of gears in 3 years. :cool:

Impressive, I can only hope I could get away with that.

-Dustin-

Derrick Redd
04-07-2004, 08:42 AM
Thanks Dustin. :cool: It's a single pattern, so not optimal for nitrous. 232/232 .560/.560 on a 113 lsa. I did run the 175 shot on the 11.03 run. With traction problems, upper 80 degree temps, 17" wheels on the front, and a 3650 raceweight, I'd say it did pretty good. :D Looking for some solid 10's and 127+ traps with new slicks, good weather, and the 15x3.5's I have now. :thumb:

andy katzelis
04-07-2004, 08:56 AM
Derrick, looks like 447 flywheel hp on motor and 625 hp on dope. Net gain of 178 hp, pretty cool. And, not bad for a single pattern cam.

Based on what we've seen around here you can easily support the 10 second run when you hook. The new slicks will get you there. Excellent.

I can't wait to see you make the 10s pass. Awsome car, excellent effort.

HungryT/A
04-07-2004, 08:58 AM
Originally posted by Derrick Redd
Thanks Dustin. :cool: It's a single pattern, so not optimal for nitrous. 232/232 .560/.560 on a 113 lsa. I did run the 175 shot on the 11.03 run. With traction problems, upper 80 degree temps, 17" wheels on the front, and a 3650 raceweight, I'd say it did pretty good. :D Looking for some solid 10's and 127+ traps with new slicks, good weather, and the 15x3.5's I have now. :thumb:
Jeez, Derrick, I'm shocked to hear that thing is still holding on! :eek: If my calculations are right, you are throwing about 600fwhp at the stock rods... What are your shift points with that cam? How much timing are you running approx. ?
TIA,

Derrick Redd
04-07-2004, 09:36 AM
I'm running full timing. I do have a dyno tune and run Sunoco 104 unleaded on the dope. I shift around 6,300 on the dope and 6,600 NA. The cam pulled to 6,900 on the dyno, but for longevity I don't rev that high..................too often. ;)

HungryT/A
04-07-2004, 09:54 AM
That' insane :)
Thanks again!