venom ws7

iTrader: (13)

I want 900rwhp after I install the heads for now I'd be happy with 750rwhp on pump gas and low boost

Grr

iTrader: (2)

I was making at least high 6xxwhp with a stock 6.0L, stock heads, just a cam and rod bolts. Using a SW S475 at 16psi, 3760 raceweight and trapping 130-135.

maxgee

iTrader: (5)

What happened, motor let go?

Grr

iTrader: (2)

sold it
word I got after was it had a braked th400 put in and a 75 shot added and went 9s. It has since been parted out then stolen

dreamls1

iTrader: (25)

We made 690whp on a mustang dyno.. Stock ls1, stock heads, stock intake, stock tb. Tc76

10sec_rx7

i ran 9.2@149 at 3400lb with stock IRS rear end on a 3.905 bore and stock block..

just had probe pistons and scat rods.. nothing special at all

CarsandWomen

iTrader: (19)

DTR bro, not a bad find.

maxgee

iTrader: (5)

How much boost and did you have stock ls1 valve springs?

1badWS6

iTrader: (32)

Also dream, what trans?

Photochop

iTrader: (74)

Yeah please tell us more about this. How much boost, what casting heads, what trans and what rearend?

dreamls1

iTrader: (25)

I dont know the casting on the heads, they are stock 99 TA heads. i upgraded the valvetrain, pushrods, springs, patriot golds. We where running 12psi with a T56 and a midwest 9". When we went up to 15psi and th400 (almost 900hp) i cracked a piston. New ERL block coming soon

trnsfmr99

iTrader: (1)

Man, love your signature!!!

overhere

iTrader: (2)

i have a cam only lq9 142mph at 3000lbs, calculators put that at 670rwhp. tc78 93octane

ran 137mph with d1sc

LS1LT1CAM

1142 rwhp 1147 rwtq budget 347 w/ GT-88 check it out on this site

Adam86

iTrader: (10)

Is there a general rule of thumb for a compression/boost ratio on these motors? I am in the middle of building my 347 back up and with the parts I have, I estimate it will be at 9.1-9.3:1 compression at 9-10psi for the time being. Is there any danger to having "too low" compression on boost? I realize I may lose some power but I feel like the motor will be bombproof at that CR and boost.

Adam86

iTrader: (10)

10-22

1badWS6

iTrader: (32)

I'm going with the mpt70 here soon with all stock block for now. Going to keep it at about 8 psi for now as well. Well see how long the motor lasts. Shooting for 500 so I think I'll be safe.

vogun16

iTrader: (7)

1badws6 thats what im running, mpt70 with a stock engine running 9#s been 2 and a half years and still running strong. i ended up with 475 rwhp and 509 rwt on a mustang dyno

1badWS6

iTrader: (32)

You have a PM.

WS6HUMMER

iTrader: (19)

I think I'm a little shy of 700 but very close, I'm still running stock bottom including the timing chain, oil pump, crank, rods,rod bolts, block,pistons,&,rings. I have untouched 317 heads for lower compression,GM MLS head gaskets, & ARP head studs (just because I changed the heads). I know there has been quite a few that pushed this little, much more but I'm still working on a single didget slip with what I have at almost 3800#'s.