Posts: 350
Joined: 3/8/2003 From: United States Status: offline
With the kind of power you are making that might be the problem. You could try a cheap upgrade on the pump. Moroso makes an aftermarket fuel pump spring: Part Number: 65770 that brings the pump pressure from 12 to 19 pounds and increases overall flow. I think the price is about $7.50. One other thing to look at is the wiring to the pump. Are you running the pump through a relay? If the gauge is not big enough, and it is a long run, the pump will run slower and not deliver the fuel needed. I had that problem for a when the battery kept going down between rounds. Took me a while to figure out why the car kept going slower as the day went on... As the car is moving forward it wants to push the fuel back, so you need good pressre and volume.
Posts: 2045
Joined: 12/18/2003 From: United States Status: offline
tthats correct also pulling a g or 1,5 gs will lose pressure to the reg a couple of pounds ,,bg 400s are the **** dude ,,the money they cost its worth it ,,more motors are blowed up due to lack of fuel ,,cant skimp there,,
Posts: 2045
Joined: 12/18/2003 From: United States Status: offline
im running the mallory 140 dose just fine ,,got holley blue pump just for my nos ,,but my tannk to carb line is 3/8 in..line made new pickup tube out of 3/8 brake tubing it past houses ,,the stock line i have ruuning on the holley blue to the nos plate,,i dont like the holley red pumps...the blue arent really enoght either for carb,,thats why i got the mall 140.. the bgs are bad i seen them flow a gallon of gas in less than 10 seconds were my 140 pump is flowing a gallon in 28 secounds..holley blue in 45 secounds ,,
Posts: 350
Joined: 3/8/2003 From: United States Status: offline
Listen to hotrodman...BG400 is the way to go. I run BG400 for both sides. N2O and carb. off the same pump. When you look at the specs on pumps, you are looking at free flow. Things change when it is in the car. I had a Holley Blue for my N2O side a few years ago. It went "belly up" and I lost the motor. One positive comment on Holley..they chipped in some $$$ when I proved it was their pump.
Posts: 350
Joined: 3/8/2003 From: United States Status: offline
Yep. Spray out of the gate. I have a transbrake and an RTD box. I stage the car, push the T/B button. It pulls 12V away from the solenoids. I purge the system with my left thumb, hold the T/B with the right thumb. I wait for the other guys stage light to come on, and plant my foot to the floor. It brings it up to 5200 RPM on a rev limiter. I release the button on the top yellow, and the RTD box counts it down. When the T/B releases, it puts 12V back on the soleniods and N2O is flowing. It flashes to 5800 RPM, shifts at 7800 RPM on a Shifnoid.
Posts: 350
Joined: 3/8/2003 From: United States Status: offline
I run 10.5 x 28 x 15 MT slicks, about 10 pounds of pressure, with rim screws. Looking back over my time slips your 60 foot would have to be a low, low 1.40 or quicker.
Ron
Hee is one of the slips..car 373..that was a really good race BTW. Good reaction times and door to door all the way.
< Message edited by red347 -- 3/6/2004 12:39:47 AM >
Hotrodman...those are some awesome mods, & times! Now, I see why you don't need 4.10's, but MAN...you are 1 of the few car guys in here w/their cars pumpin out numbers like that! Congrats on the times, & I'm sure you'll hit your goal.
Posts: 2045
Joined: 12/18/2003 From: United States Status: offline
quote:
ORIGINAL: GSXRIntensity
Hotrodman...those are some awesome mods, & times! Now, I see why you don't need 4.10's, but MAN...you are 1 of the few car guys in here w/their cars pumpin out numbers like that! Congrats on the times, & I'm sure you'll hit your goal.
thanks GSXR IM GOING FOR THE GLORY FIRST TIME OUT,,IM NOT A WAITING PERSON,,WILL GET TIMES SLIPS AND VIDEO..HOWS THAT ,,I GOT SOME OLD VID FROM THAT TIME SLIP ,,BUT NEED VIDEO CABLE SOMETHING FOR MY COMPUTER,,IT DON;T HAVE OR SOMETHING.. LET YOU KNOW ,,AS SOON AS I KNOW
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RE: hot rod man all motor time slip...351w - 
your 60 ft times are great
