1948 F1
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1948 F1
Help---- I have a 1946 straight 6 in my 48 truck and am looking to change the carbs as a first step to increasing performance but first I need to change the inlet manifold.
Any advice is welcome???
Any advice is welcome???
Believe Nothing
Joined: Jun 2004
Posts: 7,514
Likes: 398
From: W. Central FL.
Welcome to the forum. Not to rain on your parade but that truck, that engine will never be a performer, able to run with current vehicles. The only way you will get any performance out of that truck is to re-power and re-gear.
Logistics Pro
Joined: Nov 2011
Posts: 4,685
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From: Northville, MI
Too much carburetor is BAD - Holley
I have a flatty 8 and there are a lot of old (and new) performance parts for sale. But I like how easy it is to start and the sound is classic.
Enjoy!
Fleet Mechanic
Joined: Aug 2010
Posts: 1,994
Likes: 3
From: Morgan Hill, CA
Haha....that is pretty cool truck...and your girlfriend/wife wants to know "who would watch it?"....
I'll bet that you get a few views today!!!
Dan
I'll bet that you get a few views today!!!
Dan
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Logistics Pro
Joined: May 2010
Posts: 3,793
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From: Austin
Hey Andy,
Welcome aboard! I've got a 1950 F1 - nice to have some of the original F1's on here! Your wife is a good sport on the video - she doesn't seem to be frightened for her life - that's nice. I see you passing a Sainsbury's there - where are you guys in England? Looks familiar - I can feel the rain & cold from here (I spent a lot of time in Bracknell outside of Reading).
It runs great - I like the bed & the little American flag in the window.
Where did you get it from?
Ben in Texas
Welcome aboard! I've got a 1950 F1 - nice to have some of the original F1's on here! Your wife is a good sport on the video - she doesn't seem to be frightened for her life - that's nice. I see you passing a Sainsbury's there - where are you guys in England? Looks familiar - I can feel the rain & cold from here (I spent a lot of time in Bracknell outside of Reading).
It runs great - I like the bed & the little American flag in the window.
Where did you get it from?
Ben in Texas
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Fleet Owner
Joined: Jul 2004
Posts: 27,294
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From: NM
Dual carbs on a straight six does really wake them up more than you'd think, especially if you replace the crappy log manifold. The end cylinders don't see much gas and the center cylinders get too much. It will never be a barn-burner but if you put the right carbs on it, not big ones, and spend some time dialing them in, you can get noticeably better mid-range power. You'd be limited by the intake passages in the block, but I wouldn't say it's a waste of time. My experience is limited to OHV 6's but they all suffer from a cheap intake design, the only exception being the Chrysler Slant 6's which put out very good power for their size. The Ford 170/200 ci 6's were the absolute worst IMO. They couldn't have spent 15 minutes designing that intake. BTW I've seen Brits who drilled into the side of the stock manifolds and put sidedraft SU's on them, which wouldn't be my first thought but it apparently works pretty good, and on the 170/200's you don't have many choices.
A nice set of 3-into-2 headers will make it sound better too.
A nice set of 3-into-2 headers will make it sound better too.
Junior User
Joined: Nov 2010
Posts: 52
Likes: 0
From: Pinedale, Az
Welcome to FTE! 
Very nice truck. Love that old flattie sound! I've got the 49 F-1 with a V8, going completely stock. The poor guy has been sitting in the garage very patiently for a year now waiting for me to get my chassis done. Sweet truck you have there, very impressive.
Very nice truck. Love that old flattie sound! I've got the 49 F-1 with a V8, going completely stock. The poor guy has been sitting in the garage very patiently for a year now waiting for me to get my chassis done. Sweet truck you have there, very impressive.
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Dual carbs on a straight six does really wake them up more than you'd think, especially if you replace the crappy log manifold. The end cylinders don't see much gas and the center cylinders get too much. It will never be a barn-burner but if you put the right carbs on it, not big ones, and spend some time dialing them in, you can get noticeably better mid-range power. You'd be limited by the intake passages in the block, but I wouldn't say it's a waste of time. My experience is limited to OHV 6's but they all suffer from a cheap intake design, the only exception being the Chrysler Slant 6's which put out very good power for their size. The Ford 170/200 ci 6's were the absolute worst IMO. They couldn't have spent 15 minutes designing that intake. BTW I've seen Brits who drilled into the side of the stock manifolds and put sidedraft SU's on them, which wouldn't be my first thought but it apparently works pretty good, and on the 170/200's you don't have many choices.
A nice set of 3-into-2 headers will make it sound better too.
A nice set of 3-into-2 headers will make it sound better too.
Andy
Thread Starter
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New User
Joined: Dec 2011
Posts: 14
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Hey Andy,
Welcome aboard! I've got a 1950 F1 - nice to have some of the original F1's on here! Your wife is a good sport on the video - she doesn't seem to be frightened for her life - that's nice. I see you passing a Sainsbury's there - where are you guys in England? Looks familiar - I can feel the rain & cold from here (I spent a lot of time in Bracknell outside of Reading).
It runs great - I like the bed & the little American flag in the window.
Where did you get it from?
Ben in Texas
Welcome aboard! I've got a 1950 F1 - nice to have some of the original F1's on here! Your wife is a good sport on the video - she doesn't seem to be frightened for her life - that's nice. I see you passing a Sainsbury's there - where are you guys in England? Looks familiar - I can feel the rain & cold from here (I spent a lot of time in Bracknell outside of Reading).
It runs great - I like the bed & the little American flag in the window.
Where did you get it from?
Ben in Texas
I would imagine I will need lots of help and advice from across the water so thanks for the reply.
Andy
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Cheers
Andy
Fleet Owner
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From: NM
Or you could cut into the side of the stock manifold and put two S&S Harley carbs (side-draft), make a cable throttle system, blank off the stock carb hole... Have some fun with it!
Fleet Mechanic
Joined: Aug 2010
Posts: 1,994
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From: Morgan Hill, CA
I think that might work!!