GM-boy#5

I have my eye set on the MS4 cam, I wnat to make around 450-470 hp on a stock bottom end without having to cut my pistions, I have a full exhaust system, and a performa built stage 3 transmission, and a 3600 stall, any ideas?

STLSleeper

You will definatly NOT make 450-470 with a cam/exhaust only set up.You would need to have a set of heads to help that cam breathe.

Latch

iTrader: (8)

Instead of a donkey dick cam and stock heads, why not go to a properly matched setup with a more mild cam and some good heads? You'll make better power and won't have to cut your pistons. The car will also be much more enjoyable on the street.

Jason 98 TA

iTrader: (4)

I do agree that those numbers in a automatic will be tough with any camshaft. I'm not sure exactly what latch is calling a "donkey dick cam", but the MS-4 is a proven performer with stock cylinder heads. I've personally made 3000+ dyno pulls on LS1 engines testing different combos....

I'll gladly put it against a "properly spec'd camshaft" any day. It's easy to say somethings going to work & not ever see it in action, it's a whole different deal when you have to spec something & put it side by side next to another camshaft on the same dyno same day.

GM-boy#5

I want to get a good set of heads to match, but I dont want to cut my pistions, I need help finding a good set of heads that will work with the MS4

VandykeT/A

I'm running a MS4 and a set of PRC 215s milled to 60cc with stock pistons. Give Texas Speed a call they'll take care of you.

GM-boy#5

Wit those heads wil that put me around 450-470hp rand with full bolt-ons

00pooterSS

iTrader: (40)

You will also need a 90mm or bigger FAST intake, really good headers and exhaust, and last but not least a bad *** tune.

And if you dyno your car with that setup and the converter in not locked you wont see near that much power to the ground, but that is because of the torque converter. BUT the car will haul ***!

VandykeT/A

I wouldn't think you'd fall short by much. The current stock bottom end h/c record is by texas speed with the PRC 215s and the ms4. So I guess if its possible to get it out of it then those heads would do it. Automatics aren't great for dyno numbers anyway. With a FAST intake I wouldnt question it making 450 though. I don't know much about the automatic world but I think you may need a bigger stall to get the full potential of that set up as well. My car is pretty soft down low but thats with the LS6 intake and a mail order and really seems to come alive around 4500 or so.

Latch

iTrader: (8)

The MS4 is one of the biggest cams you can cram in an LS1. If the OP doesn't want to flycut and wants to get heads down the road then he should probably look for a more mild cam.

Sometimes bigger isn't better BTW. Power under the curve is underrated. Peak HP and dyno numbers aren't everything.

GM-boy#5

what about my stall, will I need a 4000+, and would I need to change transmissions?

Nsty98LS1

iTrader: (11)

to the OP, even with the MS-4 & good heads 450-475rwhp might be a stretch through the automatic. what all supporting mods do you have? like already stated, good headers, FAST 90, fairly deep gears & a real good tune are a MUST.

i have the MS-4 in my car with stock 241 heads, but all the supporting mods to compliment the cam & i put down 424rwhp through a Moser 9 inch,4.30 gears & on 27x11.50-15 Hoosiers on 96 degree day. my car is also a six speed.

instead of worrying about dyno numbers, like a lot of people seem to do, worry more about how it performs at the track.

GM-boy#5

any suggestions on any h/c combos with full bolt-ons that will put me in the 450-470hp range?

GM-boy#5

I dont have much yet but so far I have a hooker long tube headers, full slp exhaust, and lid, LS6 intake, performa built stage 3 transmissiom, and was gonna order some 3.73 gears but I think 4.10 might be better.

Nsty98LS1

iTrader: (11)

150 shot will put you there! lol

Ehatcher

iTrader: (1)

I'm pretty sure Latch was referring to "donkey dick" cam as a cam that is huge... because well... Horses and donkeys are pretty well endowed... lol

I don't think he meant anything bad against the MS4

Nsty98LS1

iTrader: (11)

3600 stall probably isn't enough converter.

GM-boy#5

[QUOTE=Nsty98LS1;15141136]to the OP, even with the MS-4 & good heads 450-475rwhp might be a stretch through the automatic. what all supporting mods do you have? like already stated, good headers, FAST 90, fairly deep gears & a real good tune are a MUST.

i have the MS-4 in my car with stock 241 heads, but all the supporting mods to compliment the cam & i put down 424rwhp through a Moser 9 inch,4.30 gears & on 27x11.50-15 Hoosiers on 96 degree day. my car is also a six speed.

instead of worrying about dyno numbers, like a lot of people seem to do, worry more about how it performs at the track.[/QUOTE


I ran 13.14 at the track in the 1/4, I wnat to get to low 11s, high 10s if Im lucky with nitrous

VandykeT/A

I'm gonna say most of your heads and cam, auto set ups would run mid to low 11s. Espescially with spray. You could probably run a 150 shot through it now and hit high 11s with a good 60ft. You don't need alot of power to run good times. Its all about how the car is set up. What were your 60ft times. My camaro (M6) has basically the same exact mods as yours minus a LS6 intake. I'm still running the stock LS1 with only adding a set of radials I dropped .1 off my 60 ft time and it went from running 13.1s all day long to running 12.8 and the only thing different was the tires. I'd say your combo now has a lot left in it with traction. I would call TSP and tell them exactly what you want out of it and let them send you in the right direction. They have excellent customer service.

Latch

iTrader: (8)

Don't get too caught up in peak numbers. If I were you, I'd call TSP and have them spec you out exactly what you need. Don't be disappointed if it doesn't make 470 RWHP... that's not going to be easy with an auto and stock cubes.

13.14 was with full bolt-ons and a stall? I'm assuming traction was the limiting factor there.