Ok, mods list is

full exhaust
fp hta green turbo
fp 4r cams/beehive springs
stock ecu
aem fuel rail/true boost gauges/boost control solenoid
ID 1000's
walboro 255
hks ssq bov
bigger fmic/new intercooler piping
meagan 02 housing/downpipe
gasket ported stock manifold
E85 tune

Ok, took the car down to Evolution Dynamics to get tuned last weekend, awesome guys down there btw!!! Anyway, Kevin got the car ideling and running fine, but when he started to tune at WOT, it wasn't getting enough fuel?? It was maxing out the injectors and running at 100% duty cycle?? We changed out the walboro for a new one, changed the injectors to blue max 1050's, ran a wire directly from the battery to the pump, ran a -6an line directly from the rail to the pump, and swapped out the stock fpr for another stocker. We did all these things one after the other as a process of elimination. Nothing worked!! Car was still leaning way out at WOT on only 24 pounds!!!

To remedy the problem we put in a double pumper and it fixed it, but even that is running around 80-85%. That just seems high to me. I've read a couple other posts of people having similar, if not the same, set up as i do and everything was fine with one pump.

If you have any suggestions or answers please let me know. Everyone, including myself is baffled!!!

Thanks

-Josh

I'm running an FP Black on Pump gas and I'm around 80% duty cycle. So it's quite possible. I know a local guy running a green and needed to upgrade to a double pumper for e85.

I can believe that you need a double pumper to run E85 with an HTA Green.

I find this plausible. I ran a double pumper with 1450s and I was maxing those out on e85 with a 6262(i know larger turbo) on 27psi. you could calculate the CFM difference between the turbos and the percentage of flow between the injectors.

Also, you said you're on a stock FPR? i'd crank that base pressure up with and adjustable. those ID injectors can handle 90psi+ base pressure....except your walboro cant.

The car no longer has the ID 1000's in it. It has the Blue max 1050's in it now, with the double pumper. Since the double pumper fixed the problem, Kevin cranked the boost up to 30 pounds. So, at that the duty cycle is around 80-85% is what he said. I just didn't think that I would need a double pumper on this set up, thats all. neither did the tuner or anyone at the shop for that matter.

from what i read concerning e85, i always see peoples set ups having bigger injectors, 1050cc still might not be big enough, i see e85 guys generally running 1450cc-2150cc in general, also not sure if a fpr might be in order, 42.5psi on a 3bar map with lets say 1850cc will run at that but from paper work i read in my fic 1850cc with a 5bar map the duty cycle would run at 55psi equating the 1850cc to actually flow at 2000cc, if i'm incorrect someone let me know, if im right hopefully this helped you out.

Not really surprised, you can get away with running without a double pumper but you arent really going to get anywhere without it.

What were your numbers or did you not dyno...?

Well, I'm really not for sure... Tuning is really not my thing, most of what you said might as well be in Arabic to me lol. The tune is on SD... I have an Omni 4 bar map sensor.. but like I said, the reason people are running these bigger injectors most of the time is because they have a bigger turbo right?? I know you need about 30% more flow when running E85 compared to gasoline, but to totally max out 1000 cc injectors or a walboro 255 on a green???? Does that just seem weird to anyone??? Once again, I'm only basing this opion off of other threads I've read here on EvoM

Car was street tuned, didn't put it on a dyno, but he said it was proly somewhere near 450 whp/400 something torque...

I think that sounds a bit high, but not sure. I am on 93 with 1000cc and single pump thats running at like 70%. I put down 450 with a 2.4/black build.

^ definitely not high for running E85, look at my sig, I put these numbers down without a tb, head work, and no ported manifold best part of all I am still on STOCK CAMS!!!

E85 is magical lol!!!

OP - I run 2150's in my car with a double pumper for what its worth... If you are running SD with all those mods you should be making much more power and I think that your injectors still are too small, the HTA Green is also what I run and it can take alot of injector...

At what power did you guys max the injectors?

One of our installers was able to get around 620awhp out of our new in-tank pump and 1500cc injectors on E85 in a 4G63 DSM.

Maybe something to do with SD??

Curious...why did you decide on runnin SD? I would think that on a small turbo like a green, stock maf would be fine.

FWIW, I ran FIC 1050's on 93 pump gas with my FP Black, single walbro, an Aeromotive FPR and my injectors were at 68% duty cycle.

With e85 it definitely seems possible to be that high. With e85 you need roughly 30% more injector than you would with normal pump gas.


-Bink

^this

You can get away with the MAF for sure but when you start scaling up the injectors it gets hairy, my 2150's are huge and run pretty well but they do fluctuate just a touch, switching to SD not only gives your more power but cleans up the idle issues that you would have with the MAF even after lots of fine tuning.