4 barrel conversion?
Moderators: notoptoy, S Allen, Solex68
4 barrel conversion?
Has anybody heard of a 4 barrel carb conversion for the U20? Kinda interested in seeing one. My dad said "back in the day" the guy he bought his SRL from had a few he raced and said one had the 4 barrel..... seems like if a set of solexs makes a difference and nice 4 barrel would too!
- spl310
- Roadster Guru
- Posts: 13241
- Joined: Sun Dec 29, 2002 10:38 pm
- Location: In front of this keyboard... in Jacksonville, Florida!
I have seen one. It was a manifold that bolted to the SU manifold. It gave a plenum which split to the front and rear with the 4bbl bolted to it. It was in a pile of parts and the SUs were on the car. Sort of speaks to the value of it in my mind. For the fuel to flow in that setup, it would have to go down, make a 90degree turn front or rear, make a 90degree turn towards the engine, about a 15 degree turn up and then back to level before it entered the SU manifold and then dealt with the bend going into the cylinder. That is a lot of twisting and turning to ask of a fuel mixture in my opinion. Solex carbs are not that tough to come by. I just sold a set...
"Wow, a Roadster!" Stuart Little
1967.5 2000
1967.5 2000
1964 1500
1964 1500
1967.5 1600
1968 chassis
2006 Acura MDX
2013 Volkswagen Jetta TDI wagon
1995 F350 Powerstroke!
More...
1967.5 2000
1967.5 2000
1964 1500
1964 1500
1967.5 1600
1968 chassis
2006 Acura MDX
2013 Volkswagen Jetta TDI wagon
1995 F350 Powerstroke!
More...
- dbrick
- Roadster Fanatic-Site Supporter
- Posts: 10084
- Joined: Thu Sep 09, 2004 11:05 pm
- Location: Kenilworth, New Jersey
Well, would a pair of progressive Weber 2 barrels count? http://www.311s.org/phpBB2/album_pic.php?pic_id=128
Let me know, they are for sale
Let me know, they are for sale

Dave Brisco
Take my advice, I'm not using it"
66 2000 The Bobster
64 1500 in pieces for sale
1980 Fiat X1/9
2009 Volvo C-70
08 Expedition EL, STUPID huge but comfy
1962 Thompson Sea Lancer, possible money pit
- FergO2k
- Roadster Fanatic-Site Supporter
- Posts: 1773
- Joined: Thu Apr 29, 2004 12:18 pm
- Location: SoCal
alternate carb installation
At Les's turfside show 4-5 years ago, there was a fellow with an orange 'work in progress', who had made his own intake manifold to graft a single Rochester (??) carb from a V6 mustang onto his R16. He was a vintage bike guy with the "anything can be made to fit anything" approach. HJe just wanted to get it running while he did other drivability/reliability work. (not a bad approach)
Not necessarily the ideal option, but he got in on the road!
Fergus O, 69 2L, HB, CA
Not necessarily the ideal option, but he got in on the road!
Fergus O, 69 2L, HB, CA
- shifty
- Roadster Enthusiast
- Posts: 1166
- Joined: Mon Dec 20, 2004 10:56 am
- Location: Portland, OR
- Contact:
I got my first roadster, a '70 1600 when I was a junior in high school. (That was a while ago - I went to my 20-year reunion this year!)
Leigh Brooks
http://www.shiftco.com - my blog about cars (and stuff)
Latest post: http://www.shiftco.com/radios/the-test-mule/
67.5 SRL-00139 sleeping
67.5 SPL-11481 suspended animation
67.5 SPL-12961 snoring
67.5 SPL-13622 - H20 PWR!
http://www.shiftco.com - my blog about cars (and stuff)
Latest post: http://www.shiftco.com/radios/the-test-mule/
67.5 SRL-00139 sleeping
67.5 SPL-11481 suspended animation
67.5 SPL-12961 snoring
67.5 SPL-13622 - H20 PWR!
- dbrick
- Roadster Fanatic-Site Supporter
- Posts: 10084
- Joined: Thu Sep 09, 2004 11:05 pm
- Location: Kenilworth, New Jersey
I got my first just after High School. The car was only 15 years old then.After a few hours crawling around under the car and bending over the hood, I wish I was 15 not 41. It's a terriblre thing when you finish fixing it, you can barley bend enough to get in and out of it to go for a ride.
Dave Brisco
Take my advice, I'm not using it"
66 2000 The Bobster
64 1500 in pieces for sale
1980 Fiat X1/9
2009 Volvo C-70
08 Expedition EL, STUPID huge but comfy
1962 Thompson Sea Lancer, possible money pit