InsaneDomestics

iTrader: (28)

Any updates?

speedtigger

iTrader: (16)

Waiting for my carb to come back from Pro-Systems. I need to get the car back on track for the big Heads up Madness race at Sunshine Dragstrip next Saturday. I will be running the 7.50 index class. So, the week after next will be the soonest.

ZONES89RS

iTrader: (25)

Good luck man.

3pedals

iTrader: (3)

I did welll at my local track's heads up street car shootout, was running 11.5x's on the 11.50 index......frickin took myself out with a redlight, lol, dont do that!
Good luck

speedtigger

iTrader: (16)

The Victor Jr. is on. It only needed the idle screws opened a little bit and drives exactly the same around town. But, it is a full point leaner at WOT (13.4 - 13.6:1). I am going to go up 2 jet sizes all the way around and then give it a try again. It will likely be Thursday before I have time to change the jets and test it out.

speedtigger

iTrader: (16)

I created some time this afternoon to re-jet the carb and take the car for a ride. To my surprise, it was even more lean with the 77/89 jets than it was with the 75/87 jets. So, I hooked up the fuel pressure gauge and took it for a ride. As the RPMs climbed the fuel pressure dropped down to 3 1/2 pounds and she started detonation clicking. I guess I will check the fuel filters and look over the pump. I am not sure if I finally just exceeded my fuel pumps capacity or if it was just coincidentally the same time something is going goofy in my fuel system.

LS1MCSS

iTrader: (18)

What kind of pump do you have?

speedtigger

iTrader: (16)

It is an Edelbrock 1791. It appears it was just a coincidence, but the pump is giving up. It can barely keep 6 pounds at an idle now. I checked the rotor vanes, the filters, regulator and the bypass. It all looks good, the pump is just loosing it somewhere. So, time for a new pump.

I am considering a few different models:
Aeromotive 11106 (Tsunami)
Aeromotive Street Strip 11213

I heard a lot of good things about the Mallory 140, but it is too tall to fit my application.

speedtigger

iTrader: (16)

Sometimes fortune smiles on you. Before I ordered a fuel pump from Summit, I found a brand new, never installed Aeromotive Street Strip 11213 fuel pump on Craig's list for $75. What are the odds?

So, the pump is in, the carb is jetted up 2 and I bumped the squirters from 35s to 37s to quench a slight hesitation. She is ready for prime time with the Victor Jr. Unfortunately, it has been raining all day, so no road test.

We shall see if I can get to the track Wednesday or Friday to see how the intakes measure up.

billyflantos

iTrader: (6)

not to hack your thread but i already tested the two intakes a while back...granted i have a looser converter and a lighter car but......

speedtigger

iTrader: (16)

I think your info would be a great addition to this thread. This comparison will be relevant to a car of 3500 lbs with a 3000 stall and a 22x cam. It would be valuable to see your results with a different set up. Let's hear it!

billyflantos

iTrader: (6)

i'll tell mine after you tell yours...lol

2efnfast

iTrader: (2)

Those Aeromotive SS pumps are junk - I went through 3 in 5 miles. Basically, on a cold-start if temps were around 0-5*C, it would pour about 5-6oz of fuel out of the pump body before sealing. I did some searching and found dozens of people w/ the same issue with them.

I'm 110% convinced it has something to do with dissimilar metals (since when it would heat up it would stop leaking), but their stance is the pump i sonly designed to work in certain environments, lol.

In any event, it's either Weldon to if I don't need a return line, Holley BILLET pump (the billet pumps are solid, the red/blue are junk)

billyflantos

iTrader: (6)

i like my hp150 holley...

thirdgenbum

iTrader: (17)

i've had the aeromotive ss pump with no issues, and now running the tsunami, also with no issues.

speedtigger

iTrader: (16)

I had my eye on the Tsunami pump, but this SS pump came along at a great bargain.

1970camaroRS

iTrader: (8)

First I've ever heard of this. Mine doesn't leak at all and works much better than the Mallory 140 that has destroyed itself 3 times in the past 10 years. Then again, I don't run my car around here when there's ice on the roads...

2efnfast

iTrader: (2)

If you google around (at least a few years ago anyways) I found several people with similar issues - "cold" weather, pump leaks massive amounts of fuel on startup. Like I said, I went through 3 pumps in a matter of days - each time I couldn't believe the pump was pouring fuel out of the body and kept thinking it has to be how I set it up, but it wasn't.

THe really weird thing (or maybe not, given one is probably just a re-branded pump) is that when I broadened my search I found the generic summit pump (which is a virtual clone of the aeromotive ss pump) did the same exact thing.

ZONES89RS

iTrader: (25)

I have been using the aeromotive street/strip pump on the RS, works the same as the Holley blue pump i have used in the past, but i am sure the pressure is more consistent and is a return style unlike the blue i used to use.

speedtigger

iTrader: (16)

The new pump is holding pressure no problem but damn is this motor thirsty with the new carburetor. I have 77/89 jets in this 750HP and is still between 13.2 to 13.5.. It also rattled at that AFR which it never did with the dual plane. So, I will go 2 more jet sizes and see where we land.