e_kobz's FP 71HTA stock block/head/cam Evo IX - 450/400 on E85 @ 31psi
Jan 7, 2015, 07:45 PM
#61
I see your point but with the 33% more fuel required for E85 I found my 1100 cc didn't cut the mustard
They were injector dynamics injectors I doubt they were bad but I'd definitely ditch the walbro for a Bosch 044 I tried the big holley e85 pump and it failed after a week of use currently running 2 Bosch 044 second one after the surge tank since my ****ty evo tank used to run outta fuel when you cornered hard
They were injector dynamics injectors I doubt they were bad but I'd definitely ditch the walbro for a Bosch 044 I tried the big holley e85 pump and it failed after a week of use currently running 2 Bosch 044 second one after the surge tank since my ****ty evo tank used to run outta fuel when you cornered hard
Jan 7, 2015, 08:10 PM
#62
OK I'll try make it nice and easy go to injector-rehab.com there's a calculator
For 500 HP on E85
Brake specific fuel consumption (BSFC) on an evo is 0.65
# inj is 4 of course
Injector duty cycle 80% is ideal so 0.8
That = 1066.4 cc
Now ×1.4 for e85
=1492.96cc required
Good luck with it all
Oh and BTW I don't think the walbro will handle 1500cc injectors but I love to be proven wrong so. You can try it
For 500 HP on E85
Brake specific fuel consumption (BSFC) on an evo is 0.65
# inj is 4 of course
Injector duty cycle 80% is ideal so 0.8
That = 1066.4 cc
Now ×1.4 for e85
=1492.96cc required
Good luck with it all
Oh and BTW I don't think the walbro will handle 1500cc injectors but I love to be proven wrong so. You can try it
Last edited by loweyz; Jan 7, 2015 at 08:18 PM. Reason: added more
Jan 7, 2015, 08:47 PM
#63
OK I'll try make it nice and easy go to injector-rehab.com there's a calculator
For 500 HP on E85
Brake specific fuel consumption (BSFC) on an evo is 0.65
# inj is 4 of course
Injector duty cycle 80% is ideal so 0.8
That = 1066.4 cc
Now ×1.4 for e85
=1492.96cc required
Good luck with it all
Oh and BTW I don't think the walbro will handle 1500cc injectors but I love to be proven wrong so. You can try it
For 500 HP on E85
Brake specific fuel consumption (BSFC) on an evo is 0.65
# inj is 4 of course
Injector duty cycle 80% is ideal so 0.8
That = 1066.4 cc
Now ×1.4 for e85
=1492.96cc required
Good luck with it all
Oh and BTW I don't think the walbro will handle 1500cc injectors but I love to be proven wrong so. You can try it
Jan 7, 2015, 08:54 PM
#64
People routinely push past 80% IDC in the Evo community. It's really not a problem to push up to 95% (assuming there are no other issues with the fuel system). FIC rates their injector flow rates conservatively while ID tends to overrate their flow rates. The FIC900 high-Z is the same Bosch injector as the ID1000. So I think his injectors are fine for up to 475 whp as long as the pump can supply enough fuel. 044 is ok, but much easier to drop in a Walbro 416 on stock wiring. Perfect for his power level.
Jan 7, 2015, 11:52 PM
#68
EvoM Guru
iTrader: (1)
your injectors are pushing it, and so is your fuel pump..
Jan 8, 2015, 12:23 AM
#69
Evolving Member
I agree with mrfred, drop in a Walbro 400 and do the pressure release mod for extra flow and you will be right on the money. I took his advice and went with this pump and have nothing but good things to say. It requires a little custom work to fit but nothing you or a shop can handle easily. My 400 is hardwired and my rail pressure is at 60psi while the FPR is set to 50psi. I am on FIC 1100 high z and the car drives and idles like stock. My mileage is good too but I don't have empirical data to show for it. Haven't finished tuning yet as I haven't had time but a partial pull with rich afrs in the mid 10s to 6k @30psi tapering to 28 showed very good idc that I'm not worried at all about fuel. Take his advice and try that pump first. Only other thing to note is to do the siphon modification to releave pressure as the pump is a beast and will likely overwhelm the return.
Jan 8, 2015, 05:07 AM
#70
People routinely push past 80% IDC in the Evo community. It's really not a problem to push up to 95% (assuming there are no other issues with the fuel system). FIC rates their injector flow rates conservatively while ID tends to overrate their flow rates. The FIC900 high-Z is the same Bosch injector as the ID1000. So I think his injectors are fine for up to 475 whp as long as the pump can supply enough fuel. 044 is ok, but much easier to drop in a Walbro 416 on stock wiring. Perfect for his power level.
I don't unfortunately. All I own is Macs and to my knowledge evoscan and ecuflash still don't work on them.
ACT HDSS
I'm aware
trouble shooting the problem after this weekends NASA event
Last edited by e_kobz; Jan 8, 2015 at 05:09 AM.
Jan 8, 2015, 09:36 AM
#73
EvoM Guru
iTrader: (1)
The Walbro 416 E85 would be a good choice. My tuner has some AEM E85 320lph fuel pumps he's willing to let me try.
I don't unfortunately. All I own is Macs and to my knowledge evoscan and ecuflash still don't work on them.
ACT HDSS
I'm aware trouble shooting the problem after this weekends NASA event
I don't unfortunately. All I own is Macs and to my knowledge evoscan and ecuflash still don't work on them.
ACT HDSS
I'm aware
trouble shooting the problem after this weekends NASA eventThere isn't a problem, you're just at the limit of them lol. Toss in a walboro 450 and some ID1300's or FIC1650's with some GSC S2's and you'll really be able wake up the top end..
Jan 8, 2015, 12:18 PM
#74
Evolving Member
The pump basket/housing requires some modification in order for it to fit. There is no definitive solution although some users like mrfred have made write ups. My guess is because it's not "drop in" people tend to look past.
Jan 8, 2015, 04:29 PM
#75
As I mentioned before, ID tends to overrate the flow of their products. I bought and flow tested a set of ID1300s back to back against my FIC1100s at a local injector characterization shop. Was rather surprised to find that the ID1300 flow rate was only 5-7% higher. I was surprised enough to have the back-to-back done at a more well known facility - RC Engineering, and again came up with the same result. Just trying to save the OP from making the same mistake I did in assuming the ID1300s flow any useful amount higher than FIC1100s or FIC1120s.