E85 and 800cc injectors and 19 psi = .........
09-20-2008, 01:51 AM
#1
1.0 BAR
Thread Starter
Join Date: Dec 2005
Posts: 397
E85 and 800cc injectors and 19 psi = .........
Well I found out how much 800cc injectors and E85 makes….
Not much.
The motor made a max of 288 whp/330ish torque @ 21 psi and ran out of injector @ 6000 rpm.
Turning the boost down to 19 psi was 265 whp with a moderately safe tune. But the MAF was hitting 5 volts with the piggyback adding in voltage up top….
This was done @ PRE in Gresham Oregon on a DynoDynamics dyno. Sorry, neglected to get a dyno sheet. The torqe and power curves were good up until 5000-5500 rpm when I would start to degrade a bit. I was having some missing issues (we were pretty sure it wasnt det), and this could have been old sparkplugs. The AFR line was pretty damn ugly. "Safe" but ugly. The Walbro 255 just wasnt able to pump enough down low 4000-5000 rpm, then the fuel pressure would ramp up some due to the boost level, then the MAF would run out.
Since it may be awhile before I find (if ever) 1200cc sidefeeds, I am switching back to gas, as I have made 100+ more hp with the same setup.
Ah well, I just wanted to see what the injectors and E85 was good for, and now I know.
Not much.
The motor made a max of 288 whp/330ish torque @ 21 psi and ran out of injector @ 6000 rpm.
Turning the boost down to 19 psi was 265 whp with a moderately safe tune. But the MAF was hitting 5 volts with the piggyback adding in voltage up top….
This was done @ PRE in Gresham Oregon on a DynoDynamics dyno. Sorry, neglected to get a dyno sheet. The torqe and power curves were good up until 5000-5500 rpm when I would start to degrade a bit. I was having some missing issues (we were pretty sure it wasnt det), and this could have been old sparkplugs. The AFR line was pretty damn ugly. "Safe" but ugly. The Walbro 255 just wasnt able to pump enough down low 4000-5000 rpm, then the fuel pressure would ramp up some due to the boost level, then the MAF would run out.
Since it may be awhile before I find (if ever) 1200cc sidefeeds, I am switching back to gas, as I have made 100+ more hp with the same setup.
Ah well, I just wanted to see what the injectors and E85 was good for, and now I know.
09-20-2008, 02:16 PM
#7
1.5 BAR
Join Date: Oct 2006
Posts: 964
Re: E85 and 800cc injectors and 19 psi = .........
Originally Posted by jarebear667
is this the turbo and supercharged suby? thats kinda weird that you didnt have luck with it.. whats the reason you think?
09-20-2008, 05:53 PM
#10
1.0 BAR
Join Date: May 2008
Posts: 211
Re: E85 and 800cc injectors and 19 psi = .........
my buddy keeps his AFRs right around 12:1-13:1, and when he had 1000ccs and a 255 he put down over 500 on 14psi. now he has 1600ccs and an a1000, and puts down 532 on 15psi.
i would think you should be able to get more power out of your set up, but who knows. also, i was told they tuned his on lambda. dont know if that changes anything for you.
i would think you should be able to get more power out of your set up, but who knows. also, i was told they tuned his on lambda. dont know if that changes anything for you.
