Dr. Jeckel

iTrader: (12)

Here is the list of mods that will be going on:
-Racetronix Fuel Pump/Hotwire Kit
-Racetronix 38# Injectors
-Ported F.A.S.T. 90/PTM 90 Combo(TSP)
-SLP 85mm MAF(TSP)
-Powerbond Underdrive Pulley(TSP)
-TSP 5.3L Stage 2.5 Ported Heads
-TSP Ported Oil Pump
-LS2 Timing Chain(TSP)
-Cometics .045 Head Gaskets(TSP)
-GM Head Bolts
-Ram HD Clutch

The car should be right around 11.0 CR and 8.2 DCR.
I am thinking I should see 460-470rwhp and 410-420rwtq on the dyno with stock rear-end(3.42's) and current mods.
Anyone think these are unreasonable expectations?

Thanks for opinions or advice, James.

mr2guru

iTrader: (16)

with a torquer 2? 470? doubt it.

ls2 bait

iTrader: (11)

do u have valve reliefs? thats going to be tight with a t2 and a .045 cometic.

ls2 bait

iTrader: (11)

also dont forget all the gaskets and pushrods. id also think about having ur rockers rebuilt or buying some rollers. and id do arp head bolts as well. and i dont think 460-470 hp and 410-429 tq is a realistic goal.

https://ls1tech.com/forums/dynamometer-results-comparisons/664132-prc-stage-2-5-5-3-s-ms3-ewp-9090-bolt-ons-exhuast.html

MorePowerPlease

Yeah I would check with TSP on the piston to valve clearence.

If you are making 399whp now, the heads, intake and extra compression should net you between 50 to 70 whp so I think you are in the ball park.

Post results when you get a good tune on.

david vericker

iTrader: (1)

You not going to get those numbers on a Mustang Dyno,but who really cares about that anyways? It's what you do at the track that counts. There are all kinds of bogus dyno numbers floating around - the only one's that care are the dyno sheet bench racers.

Dr. Jeckel

iTrader: (12)

Well basically I was getting my numbers by figuring about 40-45rwhp for the heads then about 15-20rwhp for the F.A.S.T. and like 5-8rwhp for the pulley.
470 was an absolute max, but I figured I could probably hit 460rwhp.
The gaskets should be fine, I posted up about it a little bit ago, but your right I will ask TSP.
The rwtq is probably a little much but I figured with my little smaller cam and the raised compression, along with the F.A.S.T., would net about 10rwtq over a standard LS6 intake H/C setup.
LS2 bait, I read his post; he has 4:10 gears which rob about 10rwhp and his torque is even down from a typical H/C combo, then you also have John at TSP making 460rwhp on the same setup without the F.A.S.T. 90/90 combo.
I know I'm being generous and optimistic, but judging by other threads and gains, I thought this would be pretty close.

Lythropus

iTrader: (13)

There is also the internet phenomena, people who don't hit big numbers usually don't brag about them...

ls2 bait

iTrader: (11)

4.10's in a stock 10 bolt dont cost 10 rwhp. it might be a couple at best.

RoastEmSS

that goal is very attainable IMO. numbers in sig with torquer 2, PRC ls6 heads, non ported FAST, stock head gaskets

cantdrv65

iTrader: (3)

I agree. Im at 450rwhp with unmilled PRC LS6 heads and a smaller 228/228 XER cam....