I am going to convert to E-85 and just installed 1600cc DeatschWerks injectors. I was wondering if the Single Walbro I already have would supply enough fuel for the Gt3076, Or should I ditch the single and get a double pumper?

Current Power Mods are,
XS Engineering 272 cams
Walbro Fuel Pump
GT3076 Turbo
Agency Power Fuel Rail
Areomotive FPR
AEM EMS

ARP Headstuds
Stock valvespring/Retainers
Stock Block/Internals

Also, would an Injector driver box be a necessity with the DeatschWerks 1600cc injectors on the AEM?

 

Anyone?

 

single only good to 500-550whp

 

Well with the bottom end being stock I wouldn't want to push over 450whp. I was just wanting to know if a double pumper is absolutely needed to reach 450whp with my setup on E85

 

Single pump maxes out around 460-470whp on our mustang dyno on E85. So if your goal is 450whp, I would say you are good.

 

We hit 558whp today on my own stock bottom end before running out of fuel on a single walbro.

 

Its also relative to the air fuel ratio run on the fuel and fuel type also.

Leaded racefuel in the 600whp range.

Pumpgas, limited by octane.

Ethanol, relative to AFR as ethanol can be run at a broad AFR without detonation.

 

What turbo are you using?

 

hta86 35r

 

The title says E85 and in the OP's post that I was replying to and quoted, not leaded racefuel or pumpgas. On E85, at optimized AFR, a single pump runs out around the power I posted (460-470whp), on our Mustang dyno. It's not really open for debate, I wish it was, it would save a bunch of power hungry locals some money.

-Bryan

 

I can confirm GST's comments.

My car is a 2.3L, running a GT3076R on E85. My single unmodified Walbro was unable to supply enough fuel above 24 psi and about 430 whp via DLL. I modified the Walbro relief valve and was able to increase boost to 28 psi at which point I was fuel limited again. That netted 466 whp on DLL.

450 whp on a modified Walbro will be just near the limit - but should be OK.

 

Update: Ended up doing 480Whp at 26psi!! E-85 FTW!

 

Single pump or?

Congrats on the power.

 

Sry, it was on the single pump and had absolutely no issues!!

 

thought the walbro pump is good up to 700hp.