Nevermind about fuel leak. All is oky doky.

Oh and 13psi.... we made 66x hp and 63x tq to the rear wheels. 15psi would have made damn near 700. Will upload all stuff tomorrow and dyno vids

 

Well, after a year and a half from the original build coming back home to daddy, I finally had time after work to go and get tuned up & dyno.




More and more tweaking of the fuel yielded more and more power on the same boost same timing. We still have a little more work to do but it was WAY exceeding my expectations...


I'm losing about 4psi through all of my tubing and the intercooler. So I believe I'm going to go manual boost controller and set it and forget it. I may buy the GReddy controller but haven't decided yet.

 

did they have the ability to load the dyno while testing/tuning???
if not it will likely be pretty different once on the road so don't get too aggressive with the tune.
always enjoy following your thread, you and your dad have done a great job with the car / kit.

 

well if youtube would work with my file i guess everyone could enjoy the video... trying this again

Video link again...
http://www.youtube.com/watch?v=yVuEMXPCpuI

SO... temperature outside was 91 degrees, intake temps were 110~120 and holding, boost was 13psi. Some fueling tweaks could still be done and it would easily make 700. We are keeping it safe and sound at 660 & 640 max now. Original goal was 550~580HP...so I reckon we are set.


It also made 500RWHP and 530RWTQ at 7.5psi

 

Ok. Did some logging and my 11.7 LB spring (Wastegate) is giving me 9.3psi roughly. So I'm only losing ~2psi through my tubing and intercooler.

We then dyno'd at 12psi (184.6kpa) and made the 650 and 670.

 

nice!!

 

the problem now is, yes it is a rear mount and my goal was a fun street car. that is what I have. I had an interest in the rear mount setup and I have built it and love it with all the blood sweat and tears put into it.

this thing is a supra... low power down low, but when the rpms kick in and the turbo spools its on. Installing a boost controller (electronic) to help slightly and control my loss up high of ~2.5psi

It is going to be interesting trying the drag strip with sticky tires (MT Drag Radials 295/45 17") and no boost down low. I would love to swap in a built automatic transmission and tranny brake and see a 10.8 @ 13x mph run but this is my fun reliable street car that I can shift gears and enjoy driving and get 27 mpg on the highway.

I'm not expecting much at the drag strip, but we will see. heading to get some practice at Mooresville Drag strip Thursday (weather permitting) and then Zmax the following Wednesday. hopefully this spec stage 2 holds after a few passes and dumps through the gears.

wish me luck....driver mod...lol.

 

car is sexyyy dude. should i be expecting the same psi loss with my rear mount t72?

im running on a 5lb spring but i got a manual controller and i hoped i could turn it up to about 7 or 8 after the loss with piping and intercooler and all

 

Make sure you reference off of the manifold and run a line back to your wastegate and you'll have no problems. 7-8 psi will not be a problem for ya.

 

ZL1Killa...PM Sent

Thank you to everyone for their posts.

I am nearing the end of my rebuild. I am hoping to get my car running before winter hits...and then sort out the remainder of the issues next year.

ZL1Killa...your ride sounded awesome on the dyno by the way!

 

wait till you hear the track run...

also was at ZMax yesterday (Wed 7-6-11) and there was a Camaro SS 2010 or so with a complete STS kit. I believe it was a 67mm or 70mm (at the most) sized turbo. His car sounded good, I don't know his boost that he was running and he ran on street tires. I think his best was a 12.97 ET. Looked awesome though. I would have hoped it would be a 70mm at least, as that 6.2 liter engine can move quite a bit more air than mine...the stamp on the turbo said STS stage 3.

 

I love this build!

 

http://www.youtube.com/watch?v=9Obt7gTrHBE


I honestly hope to head back to they dyno when it gets cooler (however still take & accept SAE standard numbers) but this will allow for the car to cool quicker, and do some further tweaking.

I will upload my times from the track tomorrow. best mph was 124 and best ET was 12.2 so far. If i can get my 60 foot down, but still have a little bit of tire spin to keep it from bogging down, I foresee 11.8 or so around 12x

 

Just thought I'd share this. Was looking for a diagram for a 2000 LS1 ecu and I ran across a PDF file for the STS turbo system install.

http://i.b5z.net/i/u/1473169/i/New__...amaro_Rev4.pdf

 

look'n good

 

yeh well.... #7 let go. everything looked good after we got the motor apart, no detonation..fueling looked good...but

#7 piston at the valve relief towards the edge of the piston...there is a piece missing...part 1 of my problem. Going to take all the way apart to investigate how or why it happend...
Part #2 will be why cylinders 1,3,5 are low on compression...

hopefully will be coming apart all the way this weekend pistons out and all to see the rings and cylinder walls and pistons to see what might be the problem

should have pictures later by this weekend

 

What pistons did you have?

 

manley forged -4cc valve relief. just got to say it, lets not start a "bad" posts after this.

Manufacturing is interesting...thats all I have to say. We will investigate and see what is the problem with 1 , 3 , 5 and investigate more on what we know about #7. Not saying it is the problem as of right now, but I've had my fair share of completely ludicrous crap happen...such as my miss-machined axle & hub

 

I remember that.

 

somethings not quite right....and pretty well explains #7 bad compression

UPDATE:

problem was not rings or pistons. At some point exceeded 15psi, and the last table value in the tune was not sufficient for anything above 15psi. I likely had my boost controller set too aggressive and it spiked above 15psi for a second or so causing a lean condition. Also didn't help running on 93 octane and 130+ intake temps