ok now on my del sol i have an idea and i really dont know to much about fuel cells but what i want to do is something like this.....................im going to be running a high boost/low boost setup....and on low boost i wanna run 10-14psi (daily driven) and high boost 22+ psi...and with the fuel what i want to do is use t fittings to the motor...one line for the stock tank ...one line for the fuel cell....and hook up 2 switches, one for the stock tank fuel pump and one for the fuel cell fuel pump.....and when i switch to high boost i want to be able to switch to race gas in the fuel cell with the flip of the switch....i just need someone to steer me on how to get started....

 

You can eliminate all the hassle by installing a alcohol kit. I just tuned a friend of mines evo running 27 psi on a gt35r with 93oct and straight methanol. The car runs awsome and a gallon of alky lasts quite a while depending on how much you get on it.

 

i would be more concerned about the mechanisms necessary to swtich over from your normal tank to your race tank... just food for thought

 

well how does the alcohol kit work?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hotimportcrx &raquo;</TD></TR><TR><TD CLASS="quote">well how does the alcohol kit work?</TD></TR></TABLE>

As good as c16 would in his car, because it still has a stock bottom end. There have been guys running 30-31psi on 93+alky on built motors. 35-40psi would be normal for a built motor and c16 and 21-22psi would be the limit on straight 93oct for the evos.

 

how does the alcohol kit work...does it mix with 93 pump gas?....can i turn it on by a switch? and what do i need really to get it done

 

also doensn't alky cool the fuel a lot too? so a pro is that less chance of detonation

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hotimportcrx &raquo;</TD></TR><TR><TD CLASS="quote">ok now on my del sol i have an idea and i really dont know to much about fuel cells but what i want to do is something like this.....................im going to be running a high boost/low boost setup....and on low boost i wanna run 10-14psi (daily driven) and high boost 22+ psi...and with the fuel what i want to do is use t fittings to the motor...one line for the stock tank ...one line for the fuel cell....and hook up 2 switches, one for the stock tank fuel pump and one for the fuel cell fuel pump.....and when i switch to high boost i want to be able to switch to race gas in the fuel cell with the flip of the switch....i just need someone to steer me on how to get started....</TD></TR></TABLE>
Cool idea.

I have an idea as to how it could work but it's just a theory that I made up...

Ok, so you have two fuel tanks in the rear. One with 93, and one with race fuel. They each have their separate feeder line that runs to a special Fuel Pressure Regulator that has an inlet for both feeder lines, one main line to the fuel rail and one return line that returns to the 93 octane tank. Since each tank has their own feeder line to the motor, they each have their own fuel pump that are hooked up to two separate switches near the driver.

Now, the FPR is special. It is electronic and has the ability to open and close a feeder line with a butterfly like mechanism in the FPR inlet. So when you're driving normally, the feeder line from the 93 tank is open and the race fuel line is closed. When you want to switch, you first hit the switch that primes the race fuel pump, then hit the switch that closes the 93 butterfly and opens the race fuel butterfly on the FPR. After that, you turn off the 93 octane fuel pump. Fuel pressure is maintained throughout this transition because of the FPR.

Make sense?

If no one has invented this magical FPR you'd basically need to make a butterfly or cutout system in each feeder line. I guess look into how electronic exhaust cutouts are designed and copy that.

GO GO GO!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by litterbox &raquo;</TD></TR><TR><TD CLASS="quote">I have an idea as to how it could work but it's just a theory that I made up...</TD></TR></TABLE>


not only is it possible, it ia reality. a friend of mine has two 5 gallon tanks in his car with separate pumps etc. he has a switch that swaps power from one to the other.

 

But he doesn't have my magical FPR

How does he switch back and forth? Just power one fuel pump and turn the other one off? Where do the two lines connect?

 

off the top of my head, he has the lines T off at the 2 tanks. the switch turns off one pump, and turns the other on. this is on a street driven D modified car.

 

The fpr is a great idea...but i dont no of anyone who makes one....i was thinking more or less running like a t off the 2 tanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hotimportcrx &raquo;</TD></TR><TR><TD CLASS="quote">how does the alcohol kit work...does it mix with 93 pump gas?....can i turn it on by a switch? and what do i need really to get it done</TD></TR></TABLE>

My bad, I thought you were asking how well does it work. Basically you have a separate container, like 1 or 2 gallons, and a controller. The kits are normally set up to turn on at like say 5psi and ramp up as the boost goes up. The car will run exactly like normal on regular pump gas then whenever you hit boost the alky kicks in allowing you to run near racegas tune and boost levels. Racegas when you need it at a pumpgas price.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by litterbox &raquo;</TD></TR><TR><TD CLASS="quote">But he doesn't have my magical FPR

How does he switch back and forth? Just power one fuel pump and turn the other one off? Where do the two lines connect?</TD></TR></TABLE>

OOOOOORRRRRR He could get an intake manifold with 2 rows of injectors, run one set on the 93 tank and the other on the race fuel tank.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC4life 96 &raquo;</TD></TR><TR><TD CLASS="quote">

OOOOOORRRRRR He could get an intake manifold with 2 rows of injectors, run one set on the 93 tank and the other on the race fuel tank. </TD></TR></TABLE>HAHAHHA

 

Dude, before you decide to do the alcohol injection, take into consideration that alcohol is very corrosive. I don't know much about alcohol, but I do know it is corrosive and I just thought that I would throw that out there because I didn't see anyone else bring it up.

-Red

 

Alky is corrosive if you had large amount of it pooling in the engine. However there is such a small amount being injected into the engine and the fact it is only injected under boost it would never be a problem.

 

bump for more info!