I used fic low z 850s for 400hp/400tq and still had duty cycle left on e85. Depends what you can get a deal on really imo. And yea if you want to get a larger then stock turbo I would go larger.

 

What was your IDC? That's a lot of power, on e85, for 850s.

 

i have the same problem with IDC 90sum% @25psi was using a wally 450

 

Where I live E85 cost 90 bucks for 5 gal and Q16 cost 110.00.

I see no benefit on having to change my fuel system to dual pumper and upgrade injectors.


1200cc and 450 walbro will do 600 whp

vs

expesive ID1700 and Dual 255 doing 600 whp

If I lived in a place where E85 was cheap I would do E85 but here we can only buy ignite and VP C85.

 

Q16 100%.
E85 gets 25% less mileage and burns 30% more, so you need 6.25 to 6.5 gallons to be equal to Q16.

 

Did you rewire fuel pump for 14V?