EFR Tune Problems

[L-N-F'n]

I had my car tuned by another tuner, Vince. He got me up to 25 PSI, 41LBS a minute, I dynoed 331 WHP, with very conservative timing. He says he can not increase the boost any more, because, the waste gate is maxed out. When I had the car dynoed, I took the heat shield off so I could watch the waste gate, it was clearly coming opening quiet a bit. I think the problem with the waste gate control is the fact that the EFR turbo has a much larger waste gate with a very short arm compared to stock, and the computer has no way of knowing this. I have a buddy with an HP Pro, we have been doing logs with different config. files, and none of the ones we have found so far show what the waste gate is doing. Also, since he has a Pro we could hook a lead right to the waste gate control solenoid, but, we don not know what values to expect, so, I do not know what use that would be. Does anybody have any Ideas, or, a config. file that would help us?

My list of modes are:
three inch catless exhaust, GMPP intake, Trifecta on top of GMPP tune, EFR 6758 turbo, Garrett manifold, Dejon intercooler and piping, AME water meth large nozzle.

[silverbullet08]

if its adjustable like the factory one then pull it back some to give it a little more leverage. You can monitor WG DC. How are you only making 331 at 25psi on a EFRturbo??????

[L-N-F'n]

if its adjustable like the factory one then pull it back some to give it a little more leverage. You can monitor WG DC. How are you only making 331 at 25psi on a EFRturbo??????

That's what's I would like to know! conservative timing?

[shabby]

Unless you post a log we can't see any problems with the tune.

[raver0789]

it's called running 4 degrees of timing lol

[cobaltssoverbooster]

the trifecta tune by vince sucks! vince is a dumbass in my opinion. the last 6 trifecta's i rewrote over all ran 6* timing and 11.8 afr. hes out destroying peoples stuff. IMO if this is a trifecta efr attempt you should get a complete retune by someone else.

plus vince has shitty customer service, people having missfire issues and he tells them its normal and telling them a change in boost pressure is normal say it ran 24psi one day and the next it ran 19psi ..... really guy....normal my ass. i hope he looses mass business to the great contributing tuners on this site that actually know stuff.

[L-N-F'n]

Here are the 2 log files. the 2k-7k file was from the run we did back on 8/2. The other file is what we just logged. This last log was a config file that Dave at Werks sent. He mentioned that he had custom PID that would log the boost up to 3 bar, but it seems like it is still capped at 22.5. Any one have a known good config file that logs above 22.5?

The 8/2 log shows very little KR, but the run we just did today shows quite a bit of KR. We've made no changes to the calibration...it is Vince's custom tune for my car.

apparently, this last log also shows commanded fuel pressure vs. actual, and there is a very noticeable dip at 5k, there is about a 600 psi difference, have you guys noticed this too?


Also any one else has a config file or know which PID can show wastegate opening %?

[gmtech16450yz]

Dude, that is the absolute worst log I have ever seen. Horrific actually. Please don't drive that car any more until you find someone that can tune it properly. The mixtures are insanely far off, the cam timing is a joke, the PE is even more of a joke (as in you must have raw fuel RUNNING out of your exhaust), your fuel pressure IS a HUGE problem, KR like crazy, etc. etc.
Yikes!

[L-N-F'n]

Okay I get it, I have the worst tune ever. Does anybody know a tuner in Northern California? I obviously have not had that much luck with E-Mail tunes, so, I would rather deal with somebody in person. I would also like to finish the tune on a dyno, or , who's E-Mail tunes would you guys recommend.gmtech16450yz P-M sent.

[cobaltssoverbooster]

if you have hpt i would hit up byt he has efr kits and tunres them as well they are great tunes. as far as tuners in north idk im socal
there are also about 4 or more other people on here that have large turbos as well they would most likely help as well

[jboogie67]

Is this typical of a his tune??!! Wonder if anyone has ever done an oil analysis on one of his tunes? gotta be fuel getting past the rings at that rate.

[silverbullet08]

Dude you floored it in third gear at 28mph....... AFRs are all over the place. It goes so far out the STs actually go static or just zero out... I guess he thought you owned a drift car and that was his reasoning for the massive amount of added fuel at redline. lol I add a little bit of fuel there just incase but not enough to catch the car behind me on fire if i hit revlimiter on accident lol

[gmtech16450yz]

Dude you floored it in third gear at 28mph....... AFRs are all over the place. It goes so far out the STs actually go static or just zero out... I guess he thought you owned a drift car and that was his reasoning for the massive amount of added fuel at redline. lol I add a little bit of fuel there just incase but not enough to catch the car behind me on fire if i hit revlimiter on accident lol

Ok that was one of the funniest posts I've seen in awhile!!!!!!!

Go look around on the Saturn Sky forum, there's a guy there that was proud of the flames shooting out of his exhaust, UNTIL RODS AND SHIT CAME OUT THE SIDE OF THE BLOCK! I tried to warn him and told him exactly what was going to happen, but he just said what a dick I was and that he was tuned to perfection by the best and flames are normal and blah blah blah...
I may be a dick but I know an unhappy motor when I see one. He's into his new motor about $7k, too bad he didn't believe what I was trying to tell him. Imagine how much he could have done to that car if he didn't have to put $7k in it just to get it running again.

[cobaltssoverbooster]

here at base im called the Equal Opportunity Asshole, i equally spread my hate and anger to everyone hahah..... the other forums just dont know anything about these cars and cant play the games or take the abuse i dish to them for doing stupid stuff. like i got a pm from a kid in texas who drilled a hole in his charge pipe and shoved a hose in it for boost reference and then wondered why it always flew out after pull....really....u deserved it

i mentioned on cobaltss.net the 5-6 retunes on 91 pump i redid down here in florida after seeing this thread and they were all jokes as well 12 afr and 10 * timing so stupid man. and all the cobaltss people said was stop bashing him gtfo! haha faggots i fucking give up over there im not trying to sell myself or business cause i dont have one. i only tune myself family and a select few friends who serve this country with me. they want that afr and timing they can have it ill save my rods and pistons thank you. 8D last time i give them helpfull advice....although i did tear up vince hard haha he deserved that after the logs i saw though so i refuse to take my word back....yep im still an asshole

[Dayhoff35]

anyone notice the huge fuel pressure drop?

[cobaltssoverbooster]

yes

[shabby]

anyone notice the huge fuel pressure drop?

We notice it, but Vince doesn't see it since his software can't read that pid...

[Dayhoff35]

i looked and i was like somethings not right when i looked at my graphs and then i was just like :0

[cobaltssoverbooster]

yea thats too bad

[L-N-F'n]

Now that you guys have had a chance to look at my two logs, does anybody have any idea you there is so much more knock in the second one? Could any of what you are seeing be cause by a mechanical problem of some sort.