Could be your tuner not knowing how to setup the wg tables in the tune for that turbo. He has proven time and time again now that he has no idea how to setup the wg duty cycle and pressure vs rpm among other things.

 

Best advice = find a new tuner.

 

It could be, but for now he has proven otherwise with my past set-ups. I won't say it's the tuning until I get this boost leak fixed. There is a major problem and I don't think tuning is it. I'll see what happens in the next 2 weeks. I have set something up with my mechanic and another guy on here that is willing to help me out if my mechanic can't do it. This will be up and running before July. The only problem is that I only have one day off a week and it's on a Saturday.


One question though, why think it's the tuning when James has had this on his car working properly?

 

You have not seen the "beware of James rakes tuning" thread yet have you? If your wg tables are anything like the others I have seen especially the zfr tune I am fixing right now it would explain the issue even if you fix the leak if you have one you will still have bad driveability and poor boost response.

 

James is the man!

 

damn cant believe im just finding this thread

 

Yea I saw that thread. It really doesnt mean anything. I would go canyoning and everything was perfect. The response the ramp and power was smooth. I know youre a good tuner as well. I pm'd you as well last year about the zfr. I dont knoe if you recall, in the end Iw went with James. I dont regret it at all. For now though, let me make sure i fix that leak. This whole ordeal has not been easy for me.

 

Haven't updated in a while... Tomorrow I'm going to go and do the charge pipe work myself. My buddy Alerosaint is helping me out and hooking me up with the lift. Hopefully this fixes the issue or at least we can figure it out etc.

Anyways... you know you're addicted to modding when you buy another mod even though your car isn't fixed yet LOL. I bought some used cams with the large fuel lobe. Next is some valvesprings, rods and pistons. 600whp maybe?

 

Hey fastgti69,

I put down 472 whp at 27 psi on tuesday, my dyno crap is up in the dyno thread. Glad to see you making some progress even if its not fixed yet.

 

Holy crap, I'm going to check that out right now LOL. Thanks buddy, I'm hoping tomorrow it will be finished and I can begin tuning.

 

Seeing stuff like this REALLY makes me miss the options that port injected engines have.

:::::::sigh::::::: I hate you.. lol

 

thanks, lol, I think... the SS/TC needs someone to step in and make an upgrade for that system other than a fifth injector.

 

Truth here. Me and term ran into an issue on 93 on my car when tuning it. With full bolt ons, Zfr, and him tuning there was serious issue with the injectors causing a misfire. They are limited severely. The car can be a complete monster torque and HP wise but the injectors can't keep up at all. Its probably the reason why no one has made huge powers on the Zfr.

 

LNF EFR and huge power...

 

That's also with cams, valve springs, and fifth injecter and on E. There's a difference when still stock head and running 93.

 

yeah, just saying they can get that guy tuned up with all that extra stuff... I am just suprised that a 5th injector is the only thing that has been done since the car came out 5 years ago.

 

I think bottom line cost and end user cost has a lot to do with that honestly. The cost of developing and or modding an existing intake mani, injectors, fuel rail, modding existing fuel delivery system, standalone system and juest getting a standalone system to work in conjunction with the stock ecm all in one sellable package would probably be quite the pretty penny. At that point, the more important question becomes.... is it worth it and who will actually buy it at the expected price tag?

 

Yeah injection window is short on GDI vs SMPEFI cars (about half as long to be precise so your LNFs 122 lb/hr injectors are really close to 60s at stock fuel pressure LOL) and being that the HPFP is cam driven in the lower RPMs at times it takes a bit to build full pressure and full flow. Luckily we do have the ability to advance injection angle quite a bit which effectively increases the injection times allowed before injection window runs out. Then we can raise fuel pressure which up until a point as long as the car holds rail pressure shortens injector pulse width which shortens the injection time.

 

AFAIK, HPFPupgrade is working on injectors for our cars. I don't mind to be a ginnea pig for them

BTW, the leak was from the MAF sensor. Alerosaint and I pulled out the charge pipe and pulled all the sensors. We literally went crazy with black silicone. No **** around, I'm not trying to waste time. We did it legit. I haven't built any boost yet as I'm letting it cure. Most likely Sunday I'll give it a go and hopefully that solves all my problems and I can begin real tuning. If this doesn't work, I think I'm going to give up LMAO.

 

hope it works out for you man, i struggled for months to find my boost leak. Ended up being a stupid cracked weld, I am sure I probably already shared that, but good luck, that frankenturbo is going to be awesome especially on E47 if you go that route.

 

Thanks bro. We sprayed soap water amd actually a little spot where the bov weld is a little leak. But its tiny and negligable. So i hope this will work out for me. And yessir. 91 octane. Full e85. And 110/e85 mix. I will tune for all three but thats when i get the cams installed. For now 91 and a dyno tp see where im at for a dd and 21 psi.

 

That better fix your problem. I'm tired of hearing about your damn problems! Its getting old. Haha.

Sent from my Samsung Galaxy S4 using CobaltSS

 

No boost till monday!!! lol

I hope that really fixed it

On the injectors, I really hope the C7 has larger compatible injectors we could use, if it do it would definitely would be an lnf game changer.

 

YUP!! Now that the GM V8 world is rolling over into DI this could be HUGE for the lnf world. No one could give 2 ***** about a little DI cobalt engine having fuel limitations, but now that the new LT engine series will be DI I'm sure corvette owners will be screaming for a solution. Assuming parts could be interchanged of course. That's really the game changer for us.

 

Yea man, I'm hoping this is it. No boost though, not yet.

I know man, I'm controlling myself haha. No boost till tomorrow!

True, I totally agree that new injectors for the c7 might be interchangeable. If it is still a bosch injector and ecu etc. AFAIK, they might stay the same and use the same injectors. There is no reason not to for the v8, they have 8 injectors so their fueling for the power wouldn't be limited with 8 injectors. Who knows though, it all depends on bosch. For now we have the most flowing DI injectors from bosch.