gtistile

Just curious if any of you here running the Whipple 2.9 have gone to a larger feed line on your fuel rails. I am not completely sure whether or not the -6an size with 94lb/hr injectors is going to flow the fuel necessary on my setup with E85. I plan on running the Aeromotive eliminator fuel cell/pump setup.

As usual, Whipple's response is always "it's never been tested, we don't know" Pretty fantastic how 'little they know' any time I have ever contacted them for any kind of support or suggestions on their products. If it's not setup exactly how their kit came out of the box they are no help. SO that's where you guys hopefully can chime in.

The setup is built/cammed LS7 with 2.9 whipple, now 10-ribbed (again, no help from whipple other than "call someone else" to make that happen) running 15-16psi. It laid down 800whp on 10psi and 93 octane, and will now be running E85 on 15-16psi.

Thanks in advance for any insight!

DEFYANT

I would do a -8an Feed and -6an return. The eliminator should do fine. Run good stainless filters as well.

gtistile

The rails are only -6 and they are built specificially to clear the blower. No upgraded rails are available. Pretty lame for a blower setup that's supposed
To be able to spin 25+ psi.

Anyone know of a company that will drill and thread these rails for the -8 feed like they should have come with in first place?

My only other option is to come -10 feed off the pump, split to (2) -8s to each rail and a -8 to -6 reducer on each rail. I dont know if that will suffice or not

JoeNova

I know of at least one person making 1500 to the wheels on a single -6 line on gas and meth. That should be around 1100 whp on E85 depending on tune. I don't know how much pressure he is running.

You might get to the point where you're pushing the limits of a single -6 AN feed depending on how much power you make. Why not run a single -8 AN line and Y it into two -6 AN lines into the rails? You're not going to flow enough fuel per rail to max out the -6 AN fittings.

Most people go insane overkill on fuel line size because they don't know any better. There are cars making ~3500 HP on -10 AN line.

gtistile

Only reason I'd do -10 y'd to -8s is because the feed off the pump is -10. I would individually feed the rails -8s but the rail size is only -6, so they would have -8 to -6 reducers on them.

According to what you're saying, I should be ok up to 1,000whp or more...?


As it was, this car put down 800whp on 93 octane with factory lines to the single fed rail and no return. I just wanna make sure I dont spend the $ on this fuel setup and STILL end up with a bottleneck that keeps me from flowing enough to support the power

gtistile

Anyone else think feeding both rails with -6 will support it?

DEFYANT

-8AN split into dual -6an.

Bondobird

If you run a -6 inlet to each rail instead of just one and crossing over, you'll be good for more hp than the blower can make

JoeNova

Im surprised he didn't pick up on that when I said there are people making 1500whp on a single -6 AN Feed...