fuel pump
08-05-2010, 01:50 PM
#1
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fuel pump I need to order my fuel system today, what do you guys recomend? I've seen the MSD pump for like 100.. and a corvette filter.. I'm only planning on making around 400hp no more, basically stock 02 vette motor, I/H/E maybe a cam eventually. Ideas would be great...
08-06-2010, 07:11 PM
#4
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I have one of the MSD inline externally mounted pumps on my Chevy II. It works, but I don't really like it. It seems really loud and has acted up on several occassions, always at full throttle. The inside of the tank is spotless, so I don't think that it is debris. I have checked the voltage at the pump and that is not a problem(battery in trunk, three feet of 10 awg wire total between battery, relay and pump). I am also using the vette filter/regulator.
It is a stock LS1 with 6AN fuel lines. It does not do it all of the time, just every once in a while. Sometimes I can hear the pump noise change pitch, like the pump is bogging down, but I have watched the voltage with a digital meter when this happens and the voltage is steady.
Maybe I just got a bad one. Don't know, I'm just telling you my experiences with this pump. I will soon be putting a Walbro 255 in the tank, to fix this problem. Good luck!
It is a stock LS1 with 6AN fuel lines. It does not do it all of the time, just every once in a while. Sometimes I can hear the pump noise change pitch, like the pump is bogging down, but I have watched the voltage with a digital meter when this happens and the voltage is steady.
Maybe I just got a bad one. Don't know, I'm just telling you my experiences with this pump. I will soon be putting a Walbro 255 in the tank, to fix this problem. Good luck!
08-06-2010, 08:45 PM
#5
I had an MSD inline pump that had a hard time keeping up with a 125hp honda motor. And the God-Awful racket it made was enough to drive me insane.
Very unreliable...sometimes it would pump, sometimes it wouldn't. Most of the time it just made a ton of noise.
Of course, the biggest factor will be the feed line supplying the pump (as is the case with ANY inline pump). You're gonna want to mount it BELOW the the gas tank, and before you start the pump the first time use a siphon to get the feed line flowing into the inlet, and then install it on the pump. That way you know you already have a supply of gas resting at the inlet. They don't work very well "sucking" the gas out of the tank.
Taking all these considerations into account, it still didn't perform very well on my 1.6L honda motor.....I sure as heck wouldn't trust that crap on an LSx!
If you MUST use an inline, try a Bosch 44. Just make sure to feed it properly.
Very unreliable...sometimes it would pump, sometimes it wouldn't. Most of the time it just made a ton of noise.
Of course, the biggest factor will be the feed line supplying the pump (as is the case with ANY inline pump). You're gonna want to mount it BELOW the the gas tank, and before you start the pump the first time use a siphon to get the feed line flowing into the inlet, and then install it on the pump. That way you know you already have a supply of gas resting at the inlet. They don't work very well "sucking" the gas out of the tank.
Taking all these considerations into account, it still didn't perform very well on my 1.6L honda motor.....I sure as heck wouldn't trust that crap on an LSx!
If you MUST use an inline, try a Bosch 44. Just make sure to feed it properly.
08-06-2010, 09:44 PM
#7
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I had an MSD inline pump that had a hard time keeping up with a 125hp honda motor. And the God-Awful racket it made was enough to drive me insane.
Very unreliable...sometimes it would pump, sometimes it wouldn't. Most of the time it just made a ton of noise.
Of course, the biggest factor will be the feed line supplying the pump (as is the case with ANY inline pump). You're gonna want to mount it BELOW the the gas tank, and before you start the pump the first time use a siphon to get the feed line flowing into the inlet, and then install it on the pump. That way you know you already have a supply of gas resting at the inlet. They don't work very well "sucking" the gas out of the tank.
Taking all these considerations into account, it still didn't perform very well on my 1.6L honda motor.....I sure as heck wouldn't trust that crap on an LSx!
If you MUST use an inline, try a Bosch 44. Just make sure to feed it properly.
Very unreliable...sometimes it would pump, sometimes it wouldn't. Most of the time it just made a ton of noise.
Of course, the biggest factor will be the feed line supplying the pump (as is the case with ANY inline pump). You're gonna want to mount it BELOW the the gas tank, and before you start the pump the first time use a siphon to get the feed line flowing into the inlet, and then install it on the pump. That way you know you already have a supply of gas resting at the inlet. They don't work very well "sucking" the gas out of the tank.
Taking all these considerations into account, it still didn't perform very well on my 1.6L honda motor.....I sure as heck wouldn't trust that crap on an LSx!
If you MUST use an inline, try a Bosch 44. Just make sure to feed it properly.
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08-07-2010, 09:38 PM
#11
I've had the SAME MSD pump on my 67 pickup for 7 years now. From LT1 to 8100 Vortec, to 6.0L, to Tune Port, to 5.3L has worked great. It is a little noisy, however with the exhaust note can't really tell.
I've got a friend with the same MSD pump he's been using for 4 years no issues. I always put a small see through carb type filter on the INLET line to the MSD pump.
I just recently did a 5.3L into my 86 K5 Blazer, using the slightly cheaper summit inline pump for $75. So far works fine.
I've got a friend with the same MSD pump he's been using for 4 years no issues. I always put a small see through carb type filter on the INLET line to the MSD pump.
I just recently did a 5.3L into my 86 K5 Blazer, using the slightly cheaper summit inline pump for $75. So far works fine.
08-11-2010, 10:33 AM
#16
there are plenty of knockoff walbro being passed as the genuine stuff...spend a lil more from reputable vender or find out if that vender is authorized dealer...
compared to my stock intank pump...walbro is significantly louder...
compared to my stock intank pump...walbro is significantly louder...
08-11-2010, 10:43 AM
#17
[QUOTE=Yellowbrother;13719697]...spend a lil more from reputable vender or find out if that vender is authorized dealer...
QUOTE]
good idea
QUOTE]
good idea
