What injector and pump are you on and whats max hp/tq you put down on e85. I wanna know if ID1000s and a dw300 will get me over 600whp on e85

 

It sucks there's not an LSJ-T thread you could post this in

 

hahaha ^^ this ....

I say ID 2000's

 

What pump can I use to support them tho?

 

there is most certainly an official lsj-t thread you could post in and i bet your question is already answered in there ten times over

https://www.cobaltss.net/forums/2-0l...thread-258476/

 

Ohhh shoot! Would you looky there! There IS an lsjT thing! Thank god rice burner saved the day!!

 

Seeing as C130 is running 80's and hit 470hp and iirc his injectors MAY have been around 50%idc get 1000's you should be good

 

Thanks for the reference. IDC was 60 percent at 55psi fuel pressure at WOT at 13 AFR's from 5500-7000. There is a lot to consider besides the injector. I would say if you are aiming for 12 afr's on E the stock pump will do about 440whp, if you dont mind leaning out to 13's occasionally you can make 470 whp with no knock on the stock pump. E is some crazy stuff. There are tons of threads about this all over google. A 300 series pump and 1000's will do the trick if your looking for 600.

 

no way

 

map only goes to to 254 on this scan (22ish psi) but the car was boosting to 27 down to 24 on the dyno graph for that run. Notice that is 105 mph in 3rd gear.



This run. The graph at the end has the AFR (error little less than a point at the tail pipe) and the boost is shown 27-24psi.

 

Here is another look at the same scan above but shown in "table" mode in HPT.

almost 11000 hz MAF, MAP craps out on our cars at 254 BUT look at my commanded AFR. 6.7, to get around the crappy MAF and out of range code on the MAF, you command more fuel in PE.

 

the only thing I cant prove is the 55 psi. The cars brfps will get to 70 psi upon reaching max boost but then quickly falls to 55 MRB. The stock pump just looses gusto but does not die after 23-24 psi, the injectors had lots left in them, the stock pump was still 55 psi all the way to 7000.

Sorry for all the posts.

 

Running ur car that lean will result in burnt valves. Unless u upgraded to some supertechs or at least LNF valves.

The way around the problem of maxing the MAF is to increase the MAF housing. Im sure if u went up to the next pipe size u wont max it again. Otherwise ur shooting in the dark with just increasing the PE. I think anyways.

 

So ur 472HP run was in 3rd gear???

 

Im over 90%idc with my 80s and on e85. My 255walbro holds fuel pressure solid at 60psi full boost 21lbs. But the pump has been makib strange noises when priming and randomly stutters when on even the smallest of curves/turns under half a tank of gas

 

I am running stainless ferrea valves.

 

Yeah, we don't have a true 1:1 gear. All my runs past and present on the dyno are in 3rd. When we calibrated the dyno we matched the car rpm to the dyno before the pull. That's how it knows the correct ratio. You probably knew that.

 

you don't think we haven't known he stock pumps limits for a while I knew you were going to run out of pump but what im saying is there is no way you can 60%idc with a 13afr running out of fuel



it doesn't matter about the valves your running hey will melt and burn it just a little longer

 

True That.

Hmm ive always used 4th. Its like 0.89:1 which is closer to 1:1 than 3rd 1.18:1 or something.

 

Then what is going on with the scans I posted? How do I have 60idc and 13 afrs from 5500-7000? I am not trying to be a know all, just trying to figure what happened on these runs?

yes I know, we are running the car at 12's afr and got the car to the 430-440whp and left it there.

 

ok, I am home now, typing on my phone is a pain. So my guess is that although the IDC was 60 percent and holding 13 AFR it didnt have the pressure to get back into the 12's as we adjusted the BRFPS pull after pull on the dyno.

I know you know the stock pump is limited mrb, I have been reading about it for some time. Wasnt trying to act like it was new to everyone but its one thing to read about it and another to experience it on your own car. So i was excited to see what you all had said originally. The stock pump didnt flow enough to go over 440 whp and when we tried to make it do more work even with the BRFPS raising pressure its quickly dropped off; however, it didnt just die and give up on me like I thought. It was able to maintain 55 psi. The injectors duty cycle wasnt going into the 100's because the brfps was still trying to compensate for the boost it was referencing. I think... Could be completely wrong but I cant explain why my IDC on my 420whp run 4 months ago were 110 percent. Now they are only 60 percent with nothing more than a brfps as a modification since then.