Finally got the STS tuned in!!!
Finally got the STS tuned in!!! After many months of reinstalling, and fixing screw-ups the first installer made, we finally got the car running pretty damn good.
Stock bottem end, straight TR224, put down 469/431 on a Mustang Dyno through a TH-400 @ 8lbs. REAL NICE torque curve too! It was pushing through the junk convertor a bit up top, and I think I could see another 20rwhp with a true turbo-cam. All-in-all, I am pretty happy with those numbers considering no real work has been done to increase airflow (i.e.; no headwork on stock 5.7's) Made a 1/4 mile pull on the dyno too!
60-ft: 1.78@38.08
330': 4.76@82.09
1/8th: 7.15@103.91
1000': 9.22@118.66
1/4: 10.98@129.03
I'm really happy with the MPH. Mid 10-sec mph. The 60-ft leaves something to be desired, although that 60-ft works great on the street. Minimal wheel spin. The car doesn't make any boost until around 5800 in 1st (makes about 2-3 lbs). As soon as I go to second, it jumps to 8 and stays there and DAMN does it pull. It really is one hell of a street setup. I do see a forged 8.5:1 370 iron-block in my future though
I don't see the stock bottom end living very long.
Stock bottem end, straight TR224, put down 469/431 on a Mustang Dyno through a TH-400 @ 8lbs. REAL NICE torque curve too! It was pushing through the junk convertor a bit up top, and I think I could see another 20rwhp with a true turbo-cam. All-in-all, I am pretty happy with those numbers considering no real work has been done to increase airflow (i.e.; no headwork on stock 5.7's) Made a 1/4 mile pull on the dyno too!
60-ft: 1.78@38.08
330': 4.76@82.09
1/8th: 7.15@103.91
1000': 9.22@118.66
1/4: 10.98@129.03
I'm really happy with the MPH. Mid 10-sec mph. The 60-ft leaves something to be desired, although that 60-ft works great on the street. Minimal wheel spin. The car doesn't make any boost until around 5800 in 1st (makes about 2-3 lbs). As soon as I go to second, it jumps to 8 and stays there and DAMN does it pull. It really is one hell of a street setup. I do see a forged 8.5:1 370 iron-block in my future though
I don't see the stock bottom end living very long. Take Bobs advice... keep her Fat.
Those numbers dont jive for real to me... (The est 1/4 mile). I dont think you will see 10's with those #'s. Good luck though... I hope that you do!
Those numbers dont jive for real to me... (The est 1/4 mile). I dont think you will see 10's with those #'s. Good luck though... I hope that you do!
Originally Posted by Exotic Performance Plus
Great numbers! If your engine is tuned fat, in the range of 11.2 to 11.5/1 at wide open throttle, it should survive. Bob
Originally Posted by clemsondave
How accurate are 1/4 mile runs on a dyno? I thought it took 600+rwhp to get in the 10s.
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Originally Posted by jleews6
That power through a T400 should get you in the tens. Good job
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Originally Posted by fastlt1
Do you have a stall convertor? Would preloading build boost quicker?
Originally Posted by longrange4u
Take Bobs advice... keep her Fat.
Those numbers dont jive for real to me... (The est 1/4 mile). I dont think you will see 10's with those #'s. Good luck though... I hope that you do!
Those numbers dont jive for real to me... (The est 1/4 mile). I dont think you will see 10's with those #'s. Good luck though... I hope that you do!
to him 
Originally Posted by kjmdrumz3
Yes, but it should be a little tighter I think. On the street/track, I can usually stall it to around 3000 and build about a pound. Couldn't take it near that high on the dyno with out spinning the roller.
Originally Posted by ls1charged
Its called a TH400 and a stall....and traction.you dont need a ton of hp to get into the 10's.Your a M6,its totally different.He's where he should be, to him
to him
Originally Posted by Zombie
What rear end gears are you running?
Originally Posted by RedHardSupra
why so little boost in 1st? not enough load from the dyno, or is that how you have it tuned with a boost controller? what boost controller are you using?
Originally Posted by kjmdrumz3
The car used to be an M6, went with a 4L60 (which lasted a week with the turbo), then the TH-400. Kept the .42's in the rear. We actually put a 6-speed console back in the car and made an adapter for the 6 speed **** to fit the auto stick! Oh yeah, trans temp gauge in the ashtray. Pretty pimp ****, I'll post pics.
It feels ok in 1st, pretty good in 2nd, but 3rd is like holy ****. It feels like grabbing a 100 shot when I click into 3rd. I am able to make 11psi in all gears too.
How many pounds, or horsepower can you run on a stock bottom end? I've heard 5, 7, 8, 9, 10, etc. My guess is that I am on borrowed time running 8lbs, and roughly 600 crank hp. Would a 50/50 mix of meth and water help the bottom end live any? I have to get a good converter in there or I'm going to end up losing the motor and trans. I may go ahead and do a turbo cam while I'm at it. So, I will be looking at an easy 500rwhp real soon. The converter will just make more efficient use of the power already being made by the motor, but will the hp increase by swapping cams hurt it anymore or would it help to bleed off some pressure by running what it should be running?
depends how well tuned it is, cylinder pressures can go nuts very easily with a turbo, so unless you know what to do with AFR/timing you can hose it really easy. care to share your tune? i've been working on a slightly smaller STS system myself lately, so i'd love to discuss some finer points.
Originally Posted by RedHardSupra
depends how well tuned it is, cylinder pressures can go nuts very easily with a turbo, so unless you know what to do with AFR/timing you can hose it really easy. care to share your tune? i've been working on a slightly smaller STS system myself lately, so i'd love to discuss some finer points.
