So my setup was becoming obsolete....and we know how steep that slope is for changes....so it was my turn.

Well last year the clutch finally gave up on me so it was time to change it. That meant pulling motor (do to location of turbos, can't drop trans with motor in car.....ugh).

So since motor is out and turbos are off, might as well make changes right?

So the major changes are (And this could be the perfect street setup BTW):

-Precision Journal bearing 6031B turbos (same exhaust side as before modified intake side. Couldn't upgrade same turbos to billets due to different housings so this was best alternative to purchasing completely new turbos).
-BC Stage 3 (272) cams, and BC springs/retainers.
-Fluid Dampener (cracked a 2nd stock harmonic balancer)
-DXD Southbend Stage 5 Extreem 6puck clutch
-DXD Southbend Billet Flywheel
-Precision 1200cc injectors (up from 1000's...planning E85 here in the future).
-And exhaust was coated

Results:
edge of pump gas (19psi) made 655rwhp
22psi (110 octane) 706rwhp
Couldn't go above 22psi for now due to crankcase pressure. I still don't have a catch can which is requried at this point. So after that goes on the boost goes up.
For reference, on the old setup 25psi was 690rwhp, and 30psi was 769.

This one looks on track for 900rwhp on same 30psi as before!!!!

On street, still feels stock. This clutch is lighter/smoother than old. And it pulls like a raped ape, even on pump gas.

I'll get vids as soon as I can.

Here are the dyno's
They weren't picking up Tach signal so its just mph off dyno. I calculated rpm off that...not sure how close it is as larry showed me the rev limit is 7400rpm...so dunno whats up with that. When we turn boost up we'll get tach signal and TQ.

22psi


19psi


15psi


11psi and 22psi


old and new - This is the old setup with open downpipes vs the new setup through the muffler both at 11psi.


Tom

 

congrats Tom

around 40 whp with those cams

 

awsome results tom

so tell me about this catch can setup and crankcase pressure. this sounds like something i'm going to run into so i need to know what to do. I have drivers side with a filter on it and passenger side with an inline catch can.

 

sweet! its crazy how lazy my turbos are compared to yours and how much more boost I have to run to make those #s. I made 713DD on pump/meth but it was at 27psi.

wonder how much of that right shift is from the much larger turbos. Also, what did you do different at 22psi, no exhaust, different timing?

 

same tune as before...a/f in mid 11s i believe.

wonder what a exhaust cutout would do?

 

What I was getting at was the solid left shift in the power band between the 11psi and the 22psi pulls. Woulda thought it would follow the same curve til ~4500.

You should have SP, tune that 11psi map to have the same low end as your 22psi. Then you'd really be cooking!

 

Rich,
Basically the reason for that is this.....The pro-efi isn't doing anything until 15psi. After 15psi it starts playing with timing quite a bit (adding timing).
So maybe it would be better to do a 15.5psi vs 22psi...then the curves would have same shape.

Although, I never really run it below 15psi anymore .....usually run 17psi on pump.

Tom

 

That is because I had the boost controller off for that run which allows boost to get to the gate at all times. When the boost controller is on, it blocks any boost from getting to the gate until a preset pressure. When we fix the crank case pressure problem I will do more runs with the boost controller on at all times.

 

That looks like a fun ride!

 

Good deal, nice to see a graph showing spring vs BC.

 

yeah once that boost controller is in action it will move that curve over to the left a bit. Which one are you using by the way?

 

/\/\
AEM tru boost

 

Just awesome. I can't recall seeing any straight pump gas numbers that high. Can't wait to see the end results.

 

you should give the blitz or apexi bc a try

 

Awesome Thom!!! Congrats on the new numbers and I can't wait for the complete tune to get done. Keep us posted. Thanks.

 

thats not really that much of an upgrade haha....
IMO thom needs to have the EMS controll boost...




I though this was pretty amazing comment:
This clutch is lighter/smoother than old..and we are still talking aobut a 6-puck clutch... time will tell how much this one last, but thats awomse to hear! in case i refer to check this thom...what was the price on it btw.



BAD *** SETUP! (no 128 on upgrade list? have it controll bost)

 

The 48 pin can control boost just fine. No need for aftermarket BC.

 

Yea the clutch is very good so far. I still think there was something hokey with the old one, but it held up well.

All the BC is doing is holding boost down to redline (thanks to good flowing headers and turbos), not trying to keep it up to redline.

At some point we will have the Pro-efi control boost...probably when we finally due the flex fuel stuff.....but right now there are other purchases pressing (like a diamond ring.........EEEEKKKKK!!!!)

Tom

 

glwt =)

 

http://www.youtube.com/watch?v=kblsDBq7vUg