Author
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Topic: Cleveland Help Part II
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orangemach1 Journeyman Posts: 46 From: Southgate, MI Registered: May 2003
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posted 07-17-2003 04:33 PM
Guys,Jetted down the carb to 77-84 (KidV Suggestion). Does run better, down low didn't perform as good but up higher definitely has more pep. Now the power went further up the band to 6000. BUT, as I bumped over 45-5000, the car's power has a surging effect. Power, then sluggish, Power, then Sluggish. During the sluggish timeit felt the old setting. Does this mean what some were saying about the fuel starvation issue? It does make sense now, smaller jets didn't run the bowl dry as quickly. My buddy, Xerox, thought the same thing. Just wanted to ask, What would be the method of attack? Check the fuel bowl level? Replace the feul pump with a higher volume one?? Do you think this is just a problem from the pump to the carb and float level or do I need to worry about the fuel line from the tank (DadV pointed out)?? Let me know what you guys would do to resolve. Thanks, Brian
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ukracer Gearhead Posts: 166 From: South Wales UK Registered: Apr 2003
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posted 07-17-2003 04:51 PM
First step is fit a fuel pressure gauge and make a pass, keeping an eye on the gauge. See what happens when the surging hits. This is a quick way to end the guessing. HTH Cheers, Martin.
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kid vishus Gearhead Posts: 6405 From: middle of NC Registered: Oct 2000
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posted 07-17-2003 05:03 PM
First thing I would do is check the float levels. If it is low that will help explain why it surges so badly. If they are set OK, then it will need a bigger fuel pump.
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orangemach1 Journeyman Posts: 46 From: Southgate, MI Registered: May 2003
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posted 07-18-2003 03:06 PM
Kid, Who makes a good mech fuel pump for a 351C? I can only find replacement, no higher flow. Only Holley and Mr. Gasket at 80gph.
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kid vishus Gearhead Posts: 6405 From: middle of NC Registered: Oct 2000
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posted 07-18-2003 05:07 PM
Those are the only 2 I know of. I'm not real sure anyone else makes one. About 8 years ago I looked for a hi flow pump for my street car, but couldn't find anything then except for the Holley and Mr G pumps.
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orangemach1 Journeyman Posts: 46 From: Southgate, MI Registered: May 2003
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posted 07-18-2003 05:23 PM
So should I run the electric pump or will I be OK with a replacement Holley? Should I just try the mallory eletric?? Don't I have to mount it lower than the tank?? It will hang down pretty low.
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Dad Vishus Gearhead Posts: 920 From: Moscow, Iowa, USA Registered: Dec 2001
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posted 07-19-2003 11:21 AM
If you are a gambler, replacing the mechanical might be the right move. If it doesn't work, you are out the price of the pump.You might want to check your fuel filter also. There are several issues with electric pumps. 1st of all, electrics may not be a good choice for much street driving. They run all the time, of course, and many of the higher end ones are not designed for long continous running. We ran Holley blues, among others, and they worked well for a couple of years but seemed to get tired after that. The last setup with blues we ran was with 2 of them going into one 1/2 inch line. If your gas tank is stock, you may have space problems. You should run a filter in between the pump and tank. A pump and filter and all the plumbing takes up some room. The filter will likely hang lower than the pump. The pump needs to be low enough to get gravity flow to it. K & N makes a really nice inline filter that comes in several sizes, but is quite pricey. If you go to an electric pump, be very careful to aviod running it dry. We wrecked a couple of pumps when we accidentally ran them dry. The last one was a Holley billet 350. Ouch! Good luck with your solutions. ------------------ 63 Falcon 377 Cleveland stroker Flying Toilet alchohol injection. 6.19 @ 110 MPH 1/8 mile 2002 Ranger FX4 daily driver 2000 F350 PSD Crew cab dually - Like commuting in a B52!! 98 US Cargo Phantom II 28'
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Dad Vishus Gearhead Posts: 920 From: Moscow, Iowa, USA Registered: Dec 2001
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posted 07-19-2003 11:43 AM
Just thought of another possible solution.You might consider a small electric to suppliment your mechanical. There are little electrics that I've always called "Bangers" due to the sound they make. They kindof bang when they run. They are pretty inxpensive and can be plumbed with hose fittings. Continuous running isn't a problem as they are designed for that. I used one on a 351W powered van for several years as the sole fuel pump. It worked fine for that. I mounted it on the frame toward the front of the van. Mounting position isn't so critical with these little pumps. The last time KV had his 70 running, he had a setup like that on it. I imagine its still on it and its being raced now. Hope all this helps. ------------------ 63 Falcon 377 Cleveland stroker Flying Toilet alchohol injection. 6.19 @ 110 MPH 1/8 mile 2002 Ranger FX4 daily driver 2000 F350 PSD Crew cab dually - Like commuting in a B52!! 98 US Cargo Phantom II 28'
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kid vishus Gearhead Posts: 6405 From: middle of NC Registered: Oct 2000
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posted 07-19-2003 11:53 AM
quote: Originally posted by Dad Vishus: [BThe last time KV had his 70 running, he had a setup like that on it. I imagine its still on it and its being raced now.[/B]
Nope, took it off.
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steve'66 Gearhead Posts: 9489 From: Sonoma,CA,USA Registered: Mar 2000
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posted 07-19-2003 04:53 PM
I got away with a Holley red pushing into a stock mechanical through 3/8" lines and running 10.62 in the 1/4 at 124 mph. Just add a little electric to feed the mechanical and Ill be you'll be good to low 10's. SteveW
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