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S U Carbs

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Old Oct 27, 2002 | 10:06 AM
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S U Carbs

Need help finding a rebuild kit and or any information on these carbs. i don't know what model they are, also need help to identify that.
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Old Oct 27, 2002 | 10:12 AM
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what in the world are you doing with those? actually you could pick worse carbs, su's are easy. www.mossmotors.com i dont know what the model is, but they have all the parts and manuals

mike
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Old Oct 27, 2002 | 01:43 PM
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They look like something that came off a old british sports car.
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Old Oct 27, 2002 | 03:27 PM
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Funny you should say that. British MG's use them! It is actually a very good carb but tuning isn't the most friendly since there are literally hundreds of different fuel needles. Hurley in England uses them on rotaries.

Victoria British in Kansas City sells rebuild kits for them. They deal with RX-7's (mostly older ones), MG's and Sprite's. Not sure on pricing though but I know they'll have it.
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Old Oct 28, 2002 | 12:16 AM
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Garfinkle has rebuilt many they are easy ,he has used then on harley davidson motor cycles sense the late 60s. 1-1/4 inch on 45 ci 3 wheelers, 1-3/4 and 2 inch on the big motors.
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Old Oct 28, 2002 | 07:44 AM
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I will try to help here.

The picture gives me the impression that they are HIF series carbs. They came on '72 and later cars. Mostly MG, Triumph, and some other Brit cars.

Series 8 carbs were 2"
Series 6 were 1 3/4"
Series 4 were 1 1/2"

and so on.

If you want to use SU carbs, I would suggest the HS model. They are much more plentiful, common, and are easier to work on. The Hitachi carbs on the early Datsun Z cars were copies of the SU HS6 and work very well.

I have the Hitachi carbs on the 240Z and 260Z, HD8 carbs on the AH 3000, and HS4 carbs on the MG's. I have rebuilt most all of them and find it not difficult.

Hope this helps.

db
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Old Oct 28, 2002 | 10:02 AM
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Thanks for all of your help.

So, I know know that I have series 8 2" carbs. I'm going to rebuild them this winter. I will post pictures and results in the spring.
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Old Oct 29, 2002 | 06:29 AM
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Originally posted by DaveB
I will try to help here.

The picture gives me the impression that they are HIF series carbs. They came on '72 and later cars. Mostly MG, Triumph, and some other Brit cars.

Series 8 carbs were 2"
Series 6 were 1 3/4"
Series 4 were 1 1/2"

and so on.

If you want to use SU carbs, I would suggest the HS model. They are much more plentiful, common, and are easier to work on. The Hitachi carbs on the early Datsun Z cars were copies of the SU HS6 and work very well.

I have the Hitachi carbs on the 240Z and 260Z, HD8 carbs on the AH 3000, and HS4 carbs on the MG's. I have rebuilt most all of them and find it not difficult.

Hope this helps.

db
The HIF carbs are much better than the older HS carbs ... the Integral float ones flow much more air (nearly double!) than the older ones do

Last edited by MikeLMR; Oct 29, 2002 at 06:39 AM.
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Old Oct 29, 2002 | 06:35 AM
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Very interesting!

Thank you MikeLMR for the information. I wasn't aware that the HIF carbs were that much better than the HS. I will hang on to the ones I have and see if I can put them to better use in the future.

I'm always happy to learn something new in the hobby! Now I must figure how to adapt them to the Z cars.

db
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Old Nov 2, 2002 | 06:51 AM
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Hehe.... I had the same SU carbs on my '68 MGB (with a '73 engine iirc). They were such a bitch to keep synched up! Just outta curiosity what are you useing them for?
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Old Nov 2, 2002 | 09:16 AM
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My RX7

12A 1985
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Old Sep 20, 2013 | 06:59 PM
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Exclamation Su carbs former hd8 twin tuner

Hi all, whatever happened to maggie jaffe: Did the f.b.i. Kill her yet? Why would a rolling stones band groupie write f.b.i. Correspondence? The poetry books the prisons and circle of fire are j. Edgar hoover quality? Recipie card cross-dresser; not for me!!!
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Old Sep 20, 2013 | 07:05 PM
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My 1967 jaguar 420 went very very fast for a $2,500 usd junk yard dog out of a $1,250 usd junk reciept: Including 2 hd8 carbs!!!
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