Fuel timmers

what would i take to run a Pneumatically Operated Valve on a big block chevy
http://www.wizardswarehouse.com/indx2.htm i would like to set it up as to cut back fuel at burn out and idle and turn it on when im staging? Also how do you hook it up to the fuel system

thankss

 

Timer

Try Calling Bob Ottow Or Spike Gorr Bob Is 530-308-4427 Gorr Is 949-859-2861

 

Instead of running a timer, you could run an electronic valve. I got some from Holbrooks, and you could run it off of a toggle switch, and then to a fuel valve. Another thing that you could try would be a manual valve, and then when you back up after the burnout have a crew guy shut the valve, but I think that the electric valve and the toggle switch would be better.

Brian

 

How would i hook the electronic vavle up to the fuel system do you have any pictures?

 

I believe that this is what you want:

 

You're right Mike, to regulate the amount of fuel you send back to the tank.

The darn thing kinda looks like a nitrous solenoid doesn't it...

 

rons sells one too, and i'll bet it's a little cheaper
frank

 

Would i run that on the main fuel line after the pump ? and run a T for a other line to the tank

 

I got some pictures where would i hook up that controler on the fuel system??

 

Are you running an automatic? If so, you could just lean the barrel valve, then if your leaving on the converter, you're wide open, so it's getting all the fuel at the launch
bryan brown

 

running a 2speed with converter but when i start it it throws fuel like crazie out of the zoomies and have to floor it to clean it out. I put a new metering vavle in the barrel vavle worked perfect lean it out a good bit but still have have trouble. so im looking to run that vavle to just turn it on after i do my burnout

 

Have you tried doing the burnout w/o the pump all the way on? Seems to me that as long as you kept an eye on the temps, that you could try only having the pump 3/4 of the way on, and see if that helps, just like the nitro guys.

As fas as the valves go, you could run a tee between the pump and the b/v. I would run a normally closed valve, and then it opens when switched on. I would start off with a small jet, say a .040 and see what happens. Just make sure that it gets turned off before the run.

Brian

 

I have a car very similiar to yours, BBC 871, glide. We put a 1qt tank and electric fuel pump, with a line running to another nozzle in the hat. We fill it with gas, and use it to fire the car. It fires much faster and easier. That could help your problem when firing. Also, how do you kill it? If your killing it by just grounding the mag, there could be fuel puddled in the cylinders the next time you start. After each run, you might want to crank the motor with the ignition off, and see how much fuel was left in the cylinders/manifold. That alone might help a little.

bryan brown

 

Capt Crash could you give me info on running the pump at 3/4 then back to full power for the run?

Im still stumped on the way for the vavle would somebody be able to draw a diagram

 

Greco400, are you saying that the engine blows raw fuel out when you start it, or when it is running and you begin your burnout?

Or is this happening when you let out at the end of a burnout?

Do you have a high-speed leanout?

Do you have a secondary bypass?

I assume you have the Enderle style barrel valve? Is it the square or K version?

You might want to check out www.hre.com they have a really good manual on setting up and running a CFI system. There is also a tech forum.

I am a memeber and I highly recommend it.

 

when its idling it throws raw fuel out and when im staging i have to rev it up to clean it out

I always wanted to run a highspeed bypass but no nothing about it
i have the square barrel vavle

I have a bbc iron block and iron heads running msd7al box with 8 58 hat jets 110a pump and running 10 71 blower Im running 7.09 198 mph but looking to upgrade to a promag and a new blower hat I know i got to get more fuel to the motor but would i deff need a highspeed lean out

also with you guys running over 2500 hp what kind of fuel system are you guys running? With controllers or ?

Sorry about all the questions

 

I am going to 2nd Eric's motion that you join the HRE fuel Injection site. Even though your engine is in the wrong place. {just joking with you} With the system you have on the car there is no reason to need a pinch valve to make it work at this time. In my opinion.

If it is blowing raw fuel out at idle it needs some attention to your idle by-pass pressure and barrel valve. Your 110 pump isn't so huge that you need to do a burnout with-out the lever all the way on when the system is set up properly. If you don't do that right, you will lean it out too far and burn it up.

You are asking a bunch of questions which is good. However you need some other things taken care of before you start leaning it out with the pinch valve or you will end up with a nice pile of aluminum parts that used to be pistons. The car is running fast enough so it isn't way off, just needs some tweaking to clean up the bottom end.

Rapid

 

Is it possible your barrel valve leakdown % is way rich or maybe the wrong spool in the BV ?. The best advice I can offer is to send your complete fuel system to Jim Oddy in New York . Nobody has built more blown chevy's than him and the service to flow and set up your system is not that much .

 

i put a new metering vavle in new seals and runs good not as much fuel comming out only 7 and 8 cylinder which is good will be go to the track in the next month.. But looking to build a motor for 6'40s while reliable and wondering what you guys ran as fuel system but thanks for all the help!! i guess the metering vavle was it