Cool! I did not know that there was still a place in Damascus that had it. I will get some. ---------- Post added at 11:36 AM ---------- Previous post was at 11:25 AM ---------- No it does not. TA Performance said under 600hp. It was not needed.And for sure at 650hp. Not sure where I am yet but under that. They do a lot of motors and this should be around 550-580 They helped with the whole set up.
I'm running probably 675 on my GS with no girdle, stock rods, hydraulic cam. Just a short fill of Hardblock that Dave Dresser did. Motor has so many passes I've lost track......only 6500 rpm, though.
Ya we talked about your motor and what was needed and done. He had no worries about it and neither did TA. I am shifting at 5,800-6,000 area should be fine.
Chris, I mean exactly what I said. I never run my car at the track without some race gas in it. I think it is foolish not to do so, new, old, set up, I don't care. Just my opinion that's all. I'm glad I had 112 in my car when I was at Cecil County.
Larry, my engine has 13.2:1 it needs C12 to run safe so now I have to run rocket fuel in case my fuel system packs it in ou: ditch the sucker system and put a real fuel system in your car and you won't have to have a emergency/back up plan/band aid :bla: Now thats foolish right there. That is like saying you should have a extra pair of brake pads in the car when you make a pass at the track just in case your brakes fail.
Chris, Everyone has their priorities. My car is 99% street driven. The pump I have on the engine now is capable of 90 gallons per minute, not hour, minute. That is way more than I need. Another thing, if I was going to go through the trouble of sumping the tank, and having to hang an electric pump under my rear bumper (I really hate that look), I'd just go with an EZ EFI system, and put the pump inside the tank where it belongs. I'll probably do that anyway, but down the road. BTW, since when are electric pumps full proof? I know guys who carry a spare electric pump in their trunk because theirs have suddenly quit in the past. This mechanical I have is fully rebuild able, and easy to take apart.:bla:
I've replaced mine on the side of the road and at the track because it took a dump twice. I got so tired of worrying about it that I converted to mechanical. And it wasn't easy as my car came from the factory with an in-tank electric pump.
Wow, dats quite a pump Larry! 90 gallons a minute??!!:eek2: 5,400 gallons per hour! Should support about 10,000 hp!:Brow:
I agree Bruce, but that's what it says... unless GPM stands for something else.. http://www.cvproducts.com/ProdDet.aspx?PN=SPIN-MP-2509 This basic pump design will support 800HP on methanol.. which is of course twice the volume required vs gasoline. This pump was developed for exactly the application Larry has. About 15 years ago, I developed a very clean and trick electric fuel pump mounting and electrical system, since at that time, no mechanical fuel pump existed for a BBB that could feed over 450 HP reliably. Problem was, virtually all aftermarket external mount electric fuel pumps are not rated for continuous duty. Like a lot of guys, I had Mallory 140 and 250 Pumps on my race cars for years, never a bit of a problem. But in 3 cars, I went thru 5 Mallory and Holley Fuel pumps in 3 years. First I thought it was simply dumb luck, faulty pump at install.. then after the second one failed, I thought they must be overheating, so I re-designed the fuel system on all 3 cars (at great expense because I had to fly all over the country to the owners homes to update the systems) to allow for a return line, with a return style regulator. That helped, but after 2 more pumps failed in the next couple years, I gave up on external electric pumps for street cars. Those three cars got the first batch of my Billet pump, never had a problem again, still running to this day. Many more cars have left the shop here with that pump since then, or have been sent out of here for the owners to install. Larry's incident was just a factory screw-up, to be avoided in the future by me taking the bottom off the pump, and making sure the gasket is on correctly. As far as the OP with 12.24 to one compression, a chill ran up my spine when he says he runs it on pump gas. And you don't get any extra credit for running pump fuel at the track. No reason to do it, splash in a little race fuel.. cheap insurance. JW
Maybe it's gallons per mile.:laugh: No it's likely GPH. Other similar drag and circle track pumps are 90 GPH.
That CV pump will supply 100GPH @ 8000 RPM and 6PSI Of coarse you only spin your engine to 6000RPM ish so it would be less then 100GPH. No sump required, you can't here it running with key on engine off, 340GPH, will support up to 1000hp, I am sure both you and Jim will both like this system. http://www.jegs.com/p/Aeromotive/Aeromotive-Phantom-Stealth-Fuel-System/2433963/10002/-1
Ya, that sounds right, I never stopped to think about it really.. I just know the pump I tested years ago only dropped about 1psi at 600 HP. That was the earlier incarnation with the 11psi spring in it... I like this one better, I am sure we could run a TQ on it now, we used to have issues with the higher pressure ones. 850HP requires about 60GPH at pressure, so that would be about 90- free flow, where most pumps are rated. JW
Yup, sounded a bit much to me also. I'm not worried about the ability of this pump to supply all the fuel I need. I'm really liking what I read about the EZ _EFI 2.0. Sounds like the Aeromotive in tank pump and the EFI is the way to go. Might make a good Winter project for me. http://www.fastmanefi.com/EZ-EFI_2_0.htm
Chris, There sure are a lot of options out there these days. I am pretty sure I would get the Spectra FI fuel tank, with an upgraded pump. Very clean, factory type install. Although I will say, an electric fuel pump is the only real disadvantage of FI that I see. Personally, I still like the Billet mechanical pump. Flipped over gaskets not withstanding, it's pretty simple and fool-proof. Less expensive option for any car on the street up to 850HP, and if a car is beyond that, I sure hope there would not be a stock gas tank in it.. JW
The pump does fit there without a problem, Dave Mongeon put one in his dads GS. Don't get me wrong Jim, that CV pump is a nice pump but I personally don't care for sucker pumps. If you get a leak and suck air your done, a pusher pump gets a leak some where in the line chances are you will smell it or see gas on the ground but either way the engine will not be getting fed air. I have seen a 1 week old just over 600hp sbc chev poop the bed because it sucked air from a poor connection at a fitting. Under vacuum fuel wants to vaporize. Aeromotive sells the best electric fuel pumps out there. I might have some interesting info next week from testing on the dyno. The info I posted above on the CV pump was from the CV tech guy.
Chris, That is why I have a dedicated fuel pressure gauge inside the car now, and I watch it. I'm sure you have lots more open room up there, but down in the NYC area, it's really tough to nail a BBB for any appreciable amount of time, and not run out of room REAL FAST:grin: Most of my driving is just taking the car to cruise meets, and I can get on it a little and still get a thrill. I don't street race, mainly because I really like my life the way it is, and it just isn't worth it. When the weather gets nice, every other day, you see some horrific crashes where some moron (usually some young ricer) wrapped his car around a pole or killed someone in another car. Just yesterday, there was a 3 car accident and it was bad. No one died, but one car was split in half on one of our smaller bridges. 600 HP street cars aren't that uncommon with the aftermarket supercharger kits out there. When I do get to the track, I put in a lot of race gas. If I get a little aggressive with the timing (unlikely), or I lean out (less likely with the gauge), the Race Gas can be the difference. Yes, it slows me down, but I don't care. You want me to worry about my push lok Aeroquip lines sucking air?:grin: They are brand new, but I inspect them regularly when I'm under the car, and like I said, I watch the fuel pressure gauge now. Anything that is mechanical, something can go wrong with it. With the sucker pumps, it's also possible for the diaphragm to rupture and fill the crank case with gasoline. Sure it's possible, but how often does it really happen, especially with a new pump? As long as we are talking about Murphy's Law:grin:, let's talk about pusher pumps. That same leak in a line can spray hot fuel onto a hot exhaust, and continue to do so in an accident or roll over. Knowing the experienced guy that you are, I'm sure you wire in a cut off to the pump through an oil pressure sensor, so that the pump stops when the engine quits. I'm not worried about my fuel system. Like I said, eventually, I'd like fuel injection, and my pusher pump will be in the tank.
You shouldn't run your fuel line next to the exhaust eh! p Hobs switch shuts the fuel off when you are up side down. If your street car is slow enough you have time to watch your gauges send it back to Jim and ask for more power or put the wiz machine on a diet :laugh: How do these ricer race hurt them selves with 78 hp:spank: Have you looked at the F.A.S.T multi port injection like what I had from Kerry?
It doesn't need to be near exhaust:grin: Fuel can spray everywhere. You don't need to watch the gauges all the time. You know where they are supposed to be. When you see a reading you know isn't right, you stop and investigate. That's what happened at Cecil. Lost my fan belt, saw 200*, knew it never ran that hot, and shut it down before I hurt anything. I'm a light weight. The car is fast enough to scare me, it doesn't need to be any faster:laugh: Ricers have no experience, and youngsters think they are immortal. 78 HP is plenty to hurt people. Very nice port fuel injection. How much does that cost? Is it as versatile as the EZ EFI systems? Does it fit under a stock hood? Hey, this is like our GV discussion. You want to keep going round and round?:laugh:
Cost? A lot. Versatile? Very. Does it fit under stock hood? Yes, after you sawzall hole for new stage 2 scoop:laugh::grin: Gear Vendors are for retired cracker eating drag racers :laugh::beer
