Found this:
http://www.ka-t.org/forums/viewtopic.php?t=1595

Interesting concept. More useful for turbo and strip applications though.

 

Vishnu makes a kit for the Evo's like this. This way is probably way cheaper though.

 

Seems so complex. Why not just tune the car to run on 93 or add a couple gallons of 100+ every tank or something?

 

nice find

Only issue I'd have is weight... but if you run the 93 down enough, it won't matter

 

Here is my setup.

 

nice setup Jim. Is the A/B line separated by a ball joint or what?

 

Your setup works for a returnless setup, however if you "Open B..Close A" on a return setup, you'd be pumping race fuel to the stock tank and prematurely kill your stock fuel pump by having the stock system deadheaded with no FPR.

A FPR before A and a valve post fuel rail should work similar, right?

 

That should work, I never really though too much about it when I used it on the 4th Gen because I just had it setup for nitrous on race gas only.

Never thought a returnless system would make some things easier. Its just a way to build a fuel system cheaper, certainly not better. I don't like the idea of the fuel sitting there allowing the engine to heat it up.

 

Yeah, your FPR is on the pumps housing, so it just dumps fuel when A is closed. However, on the return setup, the safety bypass valve will be open and overheating the pump. Not sure how long that takes to kill a pump though.

 

Yup thats why I don't worry about it, it can bypass to its hearts content. Actually when the car is idling its almost %99.9 bypass anyway.

I have tried using straight 114 and setting up the a/f for it but it didn't really gain me anything N/A of course, but its nice to have the option.

What I was thinking though is just put 94 in the cell and pump out the stock tank at the track to save weight. However, I am a bracket racer and with 20 races coming this season I want to be consistent more than try and gain a 1/10 or two so its not really important.

Right now I am running in the 13.6 range with full interior and all I change when I go to the track is the 2 front wheels, 10 mins and I'm ready.

Here is a pic of the front line of IHRA mod class I am running in, (35 in the class) check out their dial on the windows. Mostly 10 and 11 sec v8 cars, super consistent and years of experience racing, however its a challenge. Most of these guys have r/t's in the teens so its not like racing against the imports.

 

That is f'ing awesome Jime. You running in a class like that. LOL.

 

I'll let you know if I ever win an event, only got to second round on sunday. Payout is $600 for win $300 for second, $100 for semi's and $50 for 1/4 finals. The street cars this year is only trophies so I need a challenge.

Here is the point standing from one race so far. Only 1 point but its better than most of the others.

http://www.torontomotorsportspark.co...ntstanding.htm

 

funny pic, Wheres Waldo? ...its awesome that you are running with them though