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Author Topic: powerlimit with E85 and stock injectors??  (Read 2815 times)

Offline roadrunnerdk

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powerlimit with E85 and stock injectors??
« on: November 16, 2013, 08:18:58 AM »
hi

i am Building a gen2 with a 86mm bigblock mild portjob and cams and i would like to run on E85
is this possible with the stock injectors?i have a bosch 0-580-254-910 external fuel pump and fuelpressure regulator
any input is welcome

thanks for reading

lars

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Re: powerlimit with E85 and stock injectors??
« Reply #1 on: November 16, 2013, 08:42:02 AM »
They should support around 240-250hp or so if you change the injector balance in the ECU to provide pulsewidth to each set of injectors.

Turbocharged gasoline applications have been over 350 with the stock injectors.
Any day on a motorcycle like this that ends just needing parts and labor is a good day.
4.82, 158.67mph 1/8th mile 7.350, 200.32mph 1/4 mile Riding

4.392, 176.79mph 1/8th mile  6.610, 228.15mph 1/4 mile Tuning

Offline Rocketgeezer

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Re: powerlimit with E85 and stock injectors??
« Reply #2 on: November 16, 2013, 01:02:41 PM »
hi

i am Building a gen2 with a 86mm bigblock mild portjob and cams and i would like to run on E85
is this possible with the stock injectors?i have a bosch 0-580-254-910 external fuel pump and fuelpressure regulator
any input is welcome

thanks for reading

lars
Its possible with stock injectors, but having to push the volume nessessary with E-85 they are going to be at or close to there limit, your motor would be happier with something larger at least in the secondarys, and I'm sure you would get more out of the tune up (fuel map)
The older you get do you notice you start chickening out way before the bike does


Offline roadrunnerdk

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Re: powerlimit with E85 and stock injectors??
« Reply #3 on: November 16, 2013, 01:23:07 PM »
thanks for the info everybody

so if i balance the injectors 50/50 i shoulb be able to run my 1507 on E85 with stock injectors
but the safest thng would be to change the secondary injectors (what size should i change them to)

thanks again
lars

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Re: powerlimit with E85 and stock injectors??
« Reply #4 on: November 16, 2013, 01:50:51 PM »
thanks for the info everybody

so if i balance the injectors 50/50 i shoulb be able to run my 1507 on E85 with stock injectors
but the safest thng would be to change the secondary injectors (what size should i change them to)

thanks again
lars

How much power do you expect to get from the engine?
Any day on a motorcycle like this that ends just needing parts and labor is a good day.
4.82, 158.67mph 1/8th mile 7.350, 200.32mph 1/4 mile Riding

4.392, 176.79mph 1/8th mile  6.610, 228.15mph 1/4 mile Tuning

Offline roadrunnerdk

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Re: powerlimit with E85 and stock injectors??
« Reply #5 on: November 16, 2013, 02:45:51 PM »
thanks for the info everybody

so if i balance the injectors 50/50 i shoulb be able to run my 1507 on E85 with stock injectors
but the safest thng would be to change the secondary injectors (what size should i change them to)

thanks again
lars

How much power do you expect to get from the engine?

i dont really know about the power. the only reason im going 1507 is that my stock engine dropped a valve on the dyno right after it made 192rwhp the head was bashed and it dented the piston and the top of the cylinder
the bigblock was on my shelf allready and cash is low so i will be doing a hand cleanup of my new head and use some cams that i have here allready too 350/375(what cams would you suggest) they may be to small for a 1507 but Money is tight.
when that is all said my bike is stock wheelbase, so as long as it makes more than the 192 it made before i think i will still have fun at the track