InchUp

iTrader: (2)

I'm loosely parts collecting for what I'd like to call "Build # next". I have a wager with a friend's dad to beat his 88 Monte Carlo in the 1/4 mile that has consistent times between 10.36 and 10.45 @ 128-131mph. His best is 10.36 @ 131mph. I've helped build this Monte Carlo's motor which is a budget 454ci big block, Edelbrock RPM heads/cam/intake package with an 850 CFM carb, Edelbrock nitrous system, 31x11.50 MT D/R's and built TH400.

I'm trying to beat him with a newer body 4wd RCSB S10, 4.3L 5-Speed with some serious weight reduction, and obviously after a new V8 and transmission transplant. Estimated race weight with me in it is 3175lbs. I have been piecing together the parts I'd need to make the S10 not only match the Monte, but also beat it. I do not wish to pass into the 9's though because I'd still like to race more than once without being called out on NHRA safety requirements, needed with a sub-10 second vehicle.

This is what I think will do the trick, let me know what you think HP will be off the bottle.

Motor:
- Aluminum block LS1 5.7L
- Lunati stroker kit, bored to 3.903" and stroked to 4" = 6.3L 383ci
- 4340 forged steel crankshaft w/ ARP main cap bolts
- 4340E billet steel rods w/ ARP rod bolts
- -8cc forged flat top aluminum pistons
- 243 heads milled to 60cc for approximately 11:1 compression w/ 91octane
- CompCams XR275 high lift, 222/224 .566/.568 on a 112LSA 110ICL "should be" a 1600-6300 rpm camshaft
- Patriot Dual springs
- Truck intake manifold, K&N intake
- F-body exhaust manifolds, 18" Dual in/out 2.5" Magnaflow w/ internal x-pipe
- No cats
- Tuned by yours truly

Transmission & transfer case
- 4L80E w/ NP233 adapter housing
- NP233 2HI/4HI/4LO transfer case w/30 spline input shaft conversion
- Yank 258mm converter, 3200 stall speed, 2.10 stall torque ratio

Rear end/gears/differentials
- Loc-rite mini spool up front, stock 3.42 ring and pinion gears
- Dana 44 rear end, narrowed and disc brakes w/ 3.42 gears
- Yukon Power-Lok limited slip rear differential

Tires/wheels
- 255/50R17 Nitto INVO's in all four corners, no D/R's
- 17x8.5 ZR1 Corvette wheels

I'm hoping that the 4wd launches will assist in lower 60' times to be on par with the 31x11.50" D/R's of the Monte Carlo, despite the "street" tires. Traction aid also comes from Cal-Tracs, and near 50/50 weight distribution. I'm shooting for 390-410rwhp N/A out of this 383. If you think I'm underestimating the 383, what's your guess? How much nitrous will be needed to punch a hole deep into the 10.1's-10.2's?

ZO6Ted

Sounds like you've got your work cut out for you. I would guess around 250 give or take 50. Good luck.

BlackGMC

iTrader: (31)

Will the 80E w/ Tcase fit in your truck? Just wondering cause your truck is kinda small the the tranny is kinda big isn't it?

InchUp

iTrader: (2)

What I'm having trouble finding are actual dyno runs of the 383ci before AND after bolted to a 4L80E. In my calculations, I've been assuming a 20% parasitic loss coming from the 80E. I have found numerous accounts of before and after dyno runs of flywheel horsepower and rear wheel horsepower with the 60E, which comes out to 14.5-15%, so I know the 80E will take more. How much exactly? I donno.

LOL, it fits.

rgvsierra

iTrader: (7)

i've always wondered why you do such tame setups.

95 bright teal

a flt 65e should hold up to that power and weight just fine!
throw a nice stall in there and your set

InchUp

iTrader: (2)

A 2wd V6 Sonoma lifted 15" taller than stock, converted to 4wd with a V8 swap is tame? A lowered 4x4 mini truck with a V8, converted to from manual to auto and racing in the 10's is tame?

Regardless, I build for practicality and function which means nothing I build becomes a trailer queen with poor daily driver manners.

InchUp

iTrader: (2)

I've rebuilt a handful of tough 60E's in my time and know their relative strength. However I've never built one for hard 4wd launches from a stand still like this S10 will be doing off the line. I noticed many of the Syclone guys are swapping to 80E's because of the hard launches they are capable of with the AWD and turbo V6. I love the 60/65E transmission and prefer it over the 80E in most scenarios, but my lack of experience in powerful 4wd/AWD launches led me overbuild the transmission. On top of that, I can get an 80E for less than a 60E. Though I do it for family and close friends, I hate rebuilding transmissions, so I only wanted to build one and never look back.

You still think a 60/65E will be strong enough? I will be spraying off the line if traction permits.

95 bright teal

yes bills till recently has made many 1/4 passes at 12s and faster in a truck that weighs 2000lbs more than what your putting together.

but if you can do an 80e for cheaper i would do it, but you will need gear and stall to get that thing out of the hole

95 bright teal

oh and blackx is running 9.8s on a flt 65e!