How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**PICKMUP** · 11-01-2007, 10:45 PM

I just bought this nice little 71 swb 4x4 pu: 350/350, QJET, 3:07s, skinny tires, dual exh and runs great...but, it wouldn't go over 65 mph-top speed.
It was not driven much so:
1. I changed the carb filter (lots of rust & dirt). That didn't do it.

2. I checked the lines into & the pickup tube size. Ah ha---small 5/16 six cyl lines had been used to change the tank...but wait, there's more!

3. Look at the filter added to the bottom of the pickup tube, inside the tank, where the sock would be. I am sure it seemed like a good idea to someone at one time...but, notice the size of the openings in & out on the filter. They are just UNDER 3/16"!!!! They didn't even trim the openings up to the next stepped size. That wouldn't feed a lawn mower.

I may try that filter idea if I can get one in 3/8".
You never know what the PO did and boy can it be a surprise...and I thought I had seen it all.

dave2953 · 11-01-2007, 11:30 PM

It takes all kinds! I'd never have thought of that as a filter location. Interesting.

matthufham · 11-01-2007, 11:30 PM

well, that's just stupid. if i were that desparate for a filter, i'd just not use one.

Gray Ghost · 11-01-2007, 11:43 PM

My friend's truck had 7 fuel filters between the tank and the carb....what'll they think of next?

BTW, when he removed all but one the truck got better mileage and ran like a scalded dog.

**special-K** · 11-02-2007, 05:32 AM

That truck forgot what it was like to swallow.Been sippin`for years,I bet.

Dirt can clog fuel lines.Filters prevent this...unless they are the clog!

I think dirt would have a hard time getting into that filter

65chevy4x4 · 11-02-2007, 07:30 AM

Hey that would be a great ideal to use a filter like that on a teenager car or truck.

jb4short · 11-02-2007, 07:55 AM

WOW...not everyone is meant to work on their own stuff

bad6772 · 11-02-2007, 08:17 PM

Quote:

Originally Posted by Tri-ProAutomotive

WOW...not everyone is meant to work on their own stuff

couldnt have said it better myself

ccd3 · 11-02-2007, 10:21 AM

Quote:

Originally Posted by 65chevy4x4

Hey that would be a great ideal to use a filter like that on a teenager car or truck.

I was thinking the same thing!!!!

dave3156 · 11-02-2007, 10:46 AM

Or even better, put one on the wife's car!

**Boog** · 11-02-2007, 07:29 PM

Wow. His intentions were good but he didn't know it could be starving the engine.
If one wants to put a limiter on how fast one runs, say for a kid driver all you have to do is install a thin plate under the carb with holes half the size of the carb. It's called a restrictor plate. It does work, look at Nascar. My dad once bought a stock Elcamino that wouldn't run more than 60 mph. The previous owner had a restrictor plate put under the carb for that very reason and it sure worked. A piece of thin sheetmetal is all it is.

PanelDeland · 11-02-2007, 07:37 PM

How does it run now? Bet it'll beat the 65 mph now.

11-01-2007, 10:45 PM	#1
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,148	How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! I just bought this nice little 71 swb 4x4 pu: 350/350, QJET, 3:07s, skinny tires, dual exh and runs great...but, it wouldn't go over 65 mph-top speed. It was not driven much so: 1. I changed the carb filter (lots of rust & dirt). That didn't do it. 2. I checked the lines into & the pickup tube size. Ah ha---small 5/16 six cyl lines had been used to change the tank...but wait, there's more! 3. Look at the filter added to the bottom of the pickup tube, inside the tank, where the sock would be. I am sure it seemed like a good idea to someone at one time...but, notice the size of the openings in & out on the filter. They are just UNDER 3/16"!!!! They didn't even trim the openings up to the next stepped size. That wouldn't feed a lawn mower. I may try that filter idea if I can get one in 3/8". You never know what the PO did and boy can it be a surprise...and I thought I had seen it all. Attached Images

11-01-2007, 11:30 PM	#2
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	Re: How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! It takes all kinds! I'd never have thought of that as a filter location. Interesting. __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250

11-01-2007, 11:30 PM	#3
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	Re: How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! well, that's just stupid. if i were that desparate for a filter, i'd just not use one.

11-01-2007, 11:43 PM	#4
Gray Ghost Senior Member Join Date: Sep 2004 Location: Terrell, TX Posts: 1,967	Re: How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! My friend's truck had 7 fuel filters between the tank and the carb....what'll they think of next? BTW, when he removed all but one the truck got better mileage and ran like a scalded dog. __________________ Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps.

11-02-2007, 05:32 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! That truck forgot what it was like to swallow.Been sippin`for years,I bet. Dirt can clog fuel lines.Filters prevent this...unless they are the clog!I think dirt would have a hard time getting into that filter __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

11-02-2007, 07:30 AM	#6
65chevy4x4 Registered User Join Date: Oct 2007 Location: ST. Joseph MO. Posts: 38	Re: How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! Hey that would be a great ideal to use a filter like that on a teenager car or truck.

11-02-2007, 07:55 AM	#7
jb4short Damn Yankee Join Date: Feb 2007 Location: Lynchburg, VA Posts: 2,261	Re: How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! WOW...not everyone is meant to work on their own stuff

11-02-2007, 10:46 AM	#10
dave3156 Registered User Join Date: Mar 2004 Location: St. Louis, MO Posts: 336	Re: How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! Or even better, put one on the wife's car!

11-02-2007, 07:29 PM	#11
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,459	Re: How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! Wow. His intentions were good but he didn't know it could be starving the engine. If one wants to put a limiter on how fast one runs, say for a kid driver all you have to do is install a thin plate under the carb with holes half the size of the carb. It's called a restrictor plate. It does work, look at Nascar. My dad once bought a stock Elcamino that wouldn't run more than 60 mph. The previous owner had a restrictor plate put under the carb for that very reason and it sure worked. A piece of thin sheetmetal is all it is. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

11-02-2007, 07:37 PM	#12
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: How I picked up 150 horsepower for $5...or the secret governor kids won't get!!! How does it run now? Bet it'll beat the 65 mph now. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"



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