MYSTIC-1SC

iTrader: (14)

nice results. Now get to the track and get some times.

gruntwork

iTrader: (2)

Really!? I was expecting 15 to 20 hp loss on my car but my tuner told me that it only lost 8 hp which suprised us both and he has no reason to lie.

I will be re dynoing for the hell of it some point and I will dyno locked vs unlocked to confirm.

gruntwork

iTrader: (2)

Sorry for being a little vague. Unlocked I made 414 and locked I made 422. I gained 8 hp from locking. This was on a mustang dyno.

JPH

iTrader: (2)

I think this car has to much convertor in it for one, and turning the thing 7000k doesn't seem needed?

Bill'sWS6

iTrader: (6)

What makes you say to much converter? I'm not saying I totally disagree with you. Since you said it, you must base your thoughts on something?

Why not turn it to 7,000? If it's making good power up there why not find out where it falls off? If we would have only taken the car to 6,600 rpms, we wouldn't really know what power the car makes. The first run we went to 6,800 and it was showing the power still climbing, so we took it to 7,000. I have the rev limiter set at 7,000, shift points at 6,700.

gruntwork

iTrader: (2)

For the purposes of performance I disagree. If it hooks up at the track then this convert will show the full potential of his setup. A 4400 stall is pretty much a max effort N/A stall for a 347 esp. for a heads/cam.

I say spin the motor til power drops off or for stock rod bolts set the limiter at 7000rpm. With a cam in the 232+ duration range I think it would almost be a sin to not spin to 7000rpm.

ExceSSive

iTrader: (13)

No it made 500 locked & 466 unlocked

JPH

iTrader: (2)

Not enough TIRE out back for one to use that stall, and your shift points in the 6500-6800k (experimenting) should be perfect. 7000k rev limiter I can deal with, but I don't think you need to turn it that hard when racing imo.

Bill'sWS6

iTrader: (6)

I agree with your statement about shift points. Why push it to the max RPM/Power to shift. Not much to be gained between 6,700 shift point and the 7,000 redline. In addition, need to take into account shift extension.

As far as the converter, I agree. It is a little to big based on my 10 bolt and the tires I have. Although, the 315s stick pretty good from a low mph roll. It is flashing the converter from a dead stop that they can't handle. 1st & 2nd go up in smoke if I hit it hard from a stop.

I was told and read so much about needing a big converter with the cam I was installing. I think I could back it down to about a 3,800 and a tighter STR. That would probably pick me up some HP and TQ.

Your thoughts?

Detroitmuscle

iTrader: (16)

torque seems awful low but probably just the converter, Phil sure knows his stuff. I wonder what my car would do on that dyno. Either way your gonna have a blast at the track with it

Bill'sWS6

iTrader: (6)

What is your setup?

It would be interesting to get a comparison of several cars on the same dyno. I know of one other car that went on the same dyno, similar setup to mine except they were running a smaller converter, a 3,400 and ran the car with the converter locked-up . That car put down 425/RWHP & 343/RWTQ.

So it may just be the dyno that reads a little on the low side.

Detroitmuscle

iTrader: (16)

LS2 shortblock, ETP 5.3 heads, Pat G cam, and SS4000 converter. If your interested I'm holding a dyno day August 7th at a place in Sterling Heights, send me a PM I guarantee you'll see better numbers on this dynojet.

stumprrp

iTrader: (2)

torque seems fine to me, hell my nearly 12:1 396 made 347 RWTQ and that was a 3000 vig flashing to 4800 haha 4.10 gear.

nice numbers dude.

Bill'sWS6

iTrader: (6)

Thanks, any track numbers out of your setup?

stumprrp

iTrader: (2)

unfortunately no, i have a crappy rear end and tracks too far. id estimate around 11.40 @ 120 MPH w/ 3650 race weight + 410 RWHP unlocked.

your car should come out of the hole nasty w that 4400 vig

Bill'sWS6

iTrader: (6)

Thanks... Or, my car will not come out at all because I snap the rearend if I hook to hard on the stock 10 bolt.

Not sure what happened with the rear gears but they were setup WAY to shallow and are ear piercingly loud.

I wish I had the money to put a 9" and some sticky tires on the car. I would love to see how it would leave on a full flash off the line dead hooking
Right now I have to preload the rear at the track and bring the car to about 2,000 and come off the line easy. On the street I make sure I am from a low roll if I am going to jump on it.

Dead Hook = Dead Rearend!!!

Detroitmuscle

iTrader: (16)

wow maybe mine is just a torque monster but mine made 408rwtq and 441rwhp locked. Does locked and unlocked affect torque much more?

twin74s

iTrader: (10)

My nova went 11.95@113 with that cam in a stock LS1 with a TH400, 3000 convertor, 3.25 gears and a 28" tire. i shifted at 6600.

JPH

iTrader: (2)

I would have choosen a SS3600 or a 3800, but for track only use, 4000max, but thats with a 4:10+ gear, 28" tall tire and a BADASS torque arm!

Bill'sWS6

iTrader: (6)

I am thinking of downsizing to a 3,800 converter with a medium STR. I should pick up some power since it would eliminate some of the slipping. The Tq numbers should also jump a bit.

I may toss the car on a dynojet just to see what the difference is before making any changes. I will also get it out to the track before the change is made. With this converter I think 1.4s would be possible with a sticky tire. The problem is would the 10 bolt last? I will take it easy at the track until the last couple runs of the night then drop the hammer & see if it holds. The only problem is I am going to the track on a private track rental day on 8/13 from 9am-3pm (Friday the 13th). I am a little superstitious so we will see what happens.

I shouldn't be so down on Friday the 13th since I was born on one