brick1234

OK here is the current specs on my setup on my 73 resto mod, how much power due you think it is making going off specs below. Only a few things to due before its done

Ls1
Pro stage 1.5 Ls6 heads ported
Ls7 lifters
Eps 236/248 617/617 110lsa can
Victor jr intake
Street demon 750
Reverse manual body turbo 400
3600 stall
3.36 rear end gears

Jebbysan

What size is it sir?

Jebby

brick1234

5.7 very low miles

Jebbysan

I would say about 500...or so.
A FAST intake will yield another 30...or so....
The best GM intake..believe it or not....is the Trailblazer SS unit for overall power....but they are ugly.


Jebby

cv67

What is a stage 1.5

Guy named headbytes by chance?

Need more gear imo

all the LSx are butt ugly, good thing they run well and dont leak easy. Carbed LSx have some eye appeal

brick1234

Auto correct when typing prc stage 1.5

cv67

Have no clue what 1.5 is

Link?

CA_WxMan

"PRC Stage 1.5 LS6 Heads" should be a set of nicely ported 243 casting heads. PRC is the company that did the work.

With that set-up I'd guess somewhere around 525 at the crank.

I'm glad to see you have a decent stall in there, but I think your rear gear (3.36) is a little too tall for that cam and intake combo, unless you're running a transmission with a very low 1st gear.

Good Luck with your build.
Chris

Jebbysan

I forgot that you were speaking of carbed....but no matter...
It does not change much at this power level....
I would clean up and port match the intake....
You may find the 750 a bit small...but it will be responsive.

Jebby

ajrothm

If you are talking about rear wheel HP, I'd guess about 370-390 rwhp through a T400 and unlocked(obviously) "3600" converter.

I wouldnt put too much stock in the chasis dyno numbers going through a T400 and IRS.

Just take it to the track, run 11.50s and drive it home.

mikem350

With a BIG smile...(assuming you get it to hook)

cv67

Skip the dyno # get to the track youll never have more fun for the money
Timeslips the real deal>dyno sheet

You can always (for fun) pipe in on threads with your "Low rwhp" car and good time slip starts plenty of fun debates lol.

brick1234

Biggest thing getting use to is the full manual Reserve pattern 400, pulls hard from 1st to 3rd

brick1234

Finally brought it to the track, had an issue with traction on the street tires but even with a 2.3 to 2.9 60ft was still trapping 103.4 to 107 mph. Was going to take the 275 60 15 nittros of my other car but figured it would slow me down or break something. My 1st run was my best 60ft of 1.95 but I let off half way down and after that couldn't even come close the next 5 runs. Plus I knew I couldn't come close to the hellcat that was with me every run. I was suppose to pick up a set of 4.11 and some other goodies for it but with two of my other cars broken right now can't due it unless I get a killer deal on a diff with 4.11s. Been a bad 3 months one tranny and one engine, but I think the 411s with those nittros would be a descent combo. Will be a while though

cv67

Guessing 13s then? Not so horrible with that gear thats not cam friendly
What size converter are you running?

Get everything right once your savings is back on its feet youll be much happier. Not everyone gets it right their first try takes time...and $

brick1234

Wasn't disappointed figured won't due well with the gears and tires. I bet on that first run of I didn't let off I would of been high 12s low 13s. 14.3@ 99
I was running high 13s on high 2s 60ft

fishslayer143

I don t see 525 HP there ... you'll know it and feel it, when you cross the 500 HP threshold

BKbroiler

You're asking for an estimate of your HP? Well, track results are much more significant than looking at a list of specs. With a best mph of 107, I'd estimate 375 HP. Gearing and traction don't have too much effect on your mph, but your actual horsepower does.

brick1234

Yes but gearing with intake and cam does if it's not going into where it makes its power (powerband) both intake and cam are for 3500-7500 . I'm not pushing it hard to begin with, it being a manual body I usually shift around 4500 to 5500 on the street when I push it hard but since my other two are down I have been only shifting in the 3K to about 4k on the street and this track run . Can't afford to fix 3 of them at once, already have to rebuild/buy a stout 700r4 for one if I don't sell it and other one needs an engine rebuild now so I'm very cautious with anything I due. Either way it was just a fun night as I just happened to be near Jackson and had to leave to go to Atlanta at 10. Was not trying to break something then pay for a tow 35 minutes to my storage before it closes. Last time I was at track I broke my 79 within the 2nd run and never really got down the track.
1st went sideways and then stopped
Pulled up to line leaking aintfreeze radiator hose came off fixed and added antifreeze
2nd launch hard flew past a built foxbody that jumped and ended up destroying trans half way down track

ajrothm

I wouldn't worry about changing the rear gears...I'd be more concerned with getting it to hook and getting it tuned right... You should EASILY go in the 11s with what you have there.

Most head/cam LS1 Camaros/Trans Ams will run 11.60-11.80s with a decent converter and 3.23/3.42 gears.

IF you are blowing the tires off bad enough to go 2.9 60's, it is not going to mph well. Your converter will do all of the work for you once you get it to hook.

FWIW, 107 mph is stock LS1 mph. You should EASILY be going 115 mph unless you are running in really bad air.