If you are going well beyond what a single in-tank can handle, maybe not...

We did have it in a AWD DSM and it put down 620awhp on E85 with 1 DW pump and our 1500cc Hz injectors @ 50psi base + 30psi boost.

 

wow,, nice power... I wish I could hav made 500 on my red when I got tuned ther.. Maybe my rc 1000 were holding me back,,

 

How much did you make? Was the injector size the only difference?

 

I made 460.. 29psi
06_9_GSR On E85
MOD'S
84mm FP RED.TURBO
ARP STUDS
1000cc_RC
255 WALBRO
HKS 272 SPRINGS.RETAINERS
Ebay INTERCOOLER NISEI LOWER
HALLMAN MBC
INJEN UICP/INJEN INTAKE WITH HKS OPEN FILTER
3"DP/3"E_BAY CATBACK/TEST PIPE

 

nice numbers!

 

Starting to think after researching and seeing this that the 02 dump might be worth it.

 

Hmmm that is interesting. Im going to be building a shortblock over the winter. I'll deff keep this in mind. I don't want to go through the hassle of a double pumper or a sump setup.

Scott said that the external dump deff helps with it. We basically have the same things. How many miles are on the motor? Do you have good compression? Also. I would for sure get wayyyyyy bigger injectors. That might be why.

 

I always hear that the BR double pumper is really easy drop in install, so I dont think it is a hassle although it is expensive.

 

I want fp red on e85 so bad! How much of difference does pump map feel compared to the e85?

 

The difference is definitely noticeable on the e85. Even though the boost difference isn't much on boost. Deff makes you get a little whiplash. Lol took the wife out for a ride and it scared the crap out of her.