Currently have a Walbro 255 and 750cc RC injectors on a RevHard turbo kit (log mani) with a Garrett GT3076R turbo (stock HG).

Would would I need to upgrade in order to use E85 on my current setup and make somewhere between 400-500whp.

From what I've researched it seems like all I would need would be to upgrade to larger injectors (maybe like 1000cc or 1200cc?) and turn up the boost and tune for it and I should be well within that range. Does that sound right? Or will I need more injector or more fuel pump or what?

 

Gonna need at least 1000cc's and another walbro. Maybe a FPR to up the fuel pressure for more headroom.

But, you can make that on 93 so why do e85?

 

You can make 450whp with walbro, stock fuel pressure and 1000IDs. If you want close to 500whp I would upgrade to an aeromotive 340lph pump for more room but your going to start to max out your injectors unless you up the base pressure. For cost reasons I would look at the DW 1300cc injectors and get the aeromotive pump and 500 is safely in your grasp.

 

safer on E85? less chance of detonation

 

Safer? Maybe. Necessary? I don't think so. Haven't had any problems out of my setup and I'm at the power level on straight 93

 

Hes on a revhard mani though, gonna need a lot more boost to hit same #'s as your mase kit

 

We made over 400whp on E85 and one Walbro yesterday (customer car), only 630cc (x5) injectors and that´s pretty close to your 750cc (x4).
The big difference is that we used rising rate FPR and pretty high fuel pressure at full boost.

Anyone here running higher fuel pressure and smaller injectors? Can´t hurt to run 60psi or a bit more?

 

Bumping this back up.

Would ID1000s and my Walbro be enough to hit 450-500 on E85? What about 400, could I at least break into the low 400s? Or will I need more fuel pump? From the previous responses it seems like a lot of disagreeing answers. From the numbers I've seen it seems like I should be able to get there but I'm not an expert...

I don't mind upping the fuel pressure some as long as its safe. I just don't want to be maxing the injectors completely out to get there.

 

PM PowerofDRM, he recently got tuned on E85 with basically the same setup as you have & made 460whp IIRC

 

Didn't see any users with that name? Link?