waiting

 

yea e85 is like 105.......but I like that its about 1/5 the cost...granted you have to run more.

i'll be doin a e85 tune next season fo sho...

Nice numbers

tom

 

I didnt think I was that far off base. No VTC would make a big difference in the powerband. But run those puppies up to 23-24 psi on some E85 when you get your injectors sorted. Sam's DJ #s are close to what you made. But, theres a ton left in those turbos!!

the 3082s are renamed GT3040's and guys running just ONE! of those are making almost 500 hp.

 

You have to remember that this isn't a full 3082, it still has a t25 exhaust housing and cast log manifolds. The backpressure between the turbo and manifold is probably killing the hp numbers

I hope hal will chime in with his opinion

 

I would love to have an E85 tune. Big HP, safe and cheap.

Unfortunately, there are no stations anywhere near me. Closest station is about 50 miles away.

 

+1

I Would really sort out the variable valve timing issue first

Sam

 

The whether the vtc was on or off it made the same peak hp. The vtc was on 9 out of 10 times so I know that isnt affectin power

 

Well, on my build one time we accidentally connected a wire to the cam phasing control wire (on the ECU harness) for the passenger side, which screwed up the cam phasing on that side. I lost at least 40-50 hp (confirmed on the dyno). Once we found and moved the wire to its appropriate location, the hp came right back.

 

The intake cam solenoids are powered off the same 12V supply line that feeds the coils. Your misfire and this VTC issue are likely related. Before you go to the trouble of replacing the wiring, I would replace the intake cam solenoids on both banks and see if it solves your issues.

 

Sucks then. bc that is not much power for such big turbos. The additional lag wouldnt be worth the price of admission.

Hopefully, Hal can resolve it and give ya the 200 more HP that kit is well capable of producing.

 

awsome, i'm pumped to see this car.

are you planning on taking it to the tuesday night ORP open nights before the season is over? if not then i'll have to wait until spring to see this car.

 

Welcome to the 600whp club

In looking at the comparison dyno, I am suprised that you didn't get more out of the APS Extreme kit. Did you make other significant changes in the build when you swapped kits?

 

I was only on a single walbro and pump gas

For this build I added a cosworth manifold and twin walbros

 

how much boost ???

19 psi ?

 

yep, some times it gets stuck.

 

I put all that work into the T25 analysis, and you guys didn't follow that thread, did you?

Just kidding.

It's not the T25 flange itself. You can cut off the T25 flange and throw a T3 or T4 flange onto a log style manifold and its performance will not change. The bottlenecks are the log style manifold itself and the turbine inlet, not the flange.

I have not found the GT3082 turbine housing dimensions on the Garrett website, but I'm assuming that it has a turbine inlet that is smaller than the GT3582 turbine inlet. The GT3582 (0.76 A/R) turbine inlet is 1117 sq. mm. The T25 flange is 1735 sq. mm. So, the T25 flange is already 60% larger than the turbine inlet. You can double the size of the flange and it will not matter.

Think of it like a garden hose with a spray nozzle on the end. The size of the hose doesn't much matter when you have the spray nozzle partially closed. Now, in the middle of the hose you can cut out a 5 ft section and replace that section with a fire hose, but it will not change the flow comming through the nozzle, nor change the back pressure...

Guys running T25 flanges and smaller have laid down alot of power. Heck, XKR got over 800 whp with his last setup. This time, he should even higher. Hopefully his HP numbers are posted in the next couple of days or so.

 

That's was 800whp on a dynojet and with race gas though right?

 

Dyno Dynamics I beleive. I'm not sure whether he had race gas or meth injection. Hopefully he will see this thread and let us know.

But E85 is 105 octane. Not quite C16, but it is about 1/2 way there, and should be better than 100 octane gas.

EDIT: Also re-read post #19. Running race gas is not going to make your turbos perform better. Running race gas inhibits the onset of detonation and pre-ignition, thus allowing you to run more boost and/or more advanced timing before the engine goes boom. The turbos that are capable of providing a particular level of boost on race gas also can provide that same level of boost on pump gas, it's just that you won't be able to use the boost. More simply, people on pump gas run lower boost because they don't want detonation, not because the turbos won't provide the boost. When the use race gas, the onset of detonation is delayed, so the boost can be cranked up.

 

As others have said, once you get the electrical issues solved, everything should fall into place (assuming no other problems pop up). The electrical problems that you are having are probably having more of an adverse impact than you think...

 

Maybe i missed it, How much boost pressure are you running ?

Sam