Twin SU Carbs - Hif 44 1 3/4"

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DKWW2000
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Location: English Riviera - South Devon

Re: Twin SU Carbs - Hif 44 1 3/4"

Post by DKWW2000 » Wed Oct 11, 2017 7:09 pm

ian65 wrote:
if you can get a spare engine loom to dissect it's easy.... these are the connections at the plug on the inner wing... water temp 2 is the water temp sensor on the back of the water pump housing which controls the choke magnet.
.
Thanks Ian, that is a great help, I do have a few old looms, but worse case I could always make up a new one 0-0
RX7 FB S3 - RX7 FC TII Vert
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander

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DKWW2000
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Re: Twin SU Carbs - Hif 44 1 3/4"

Post by DKWW2000 » Fri Oct 20, 2017 5:29 pm

I have now replaced the wiring loom with a thinned down version & removed the "Rats Nest":-

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QUESTION? On the inlet I have only 1 connection point for the Advance/Retard Vac. I tried just connecting it to the Leading Vac & also both by using a Y connector & have not noticed any difference.................is there a best option?

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The open space in the bay is now growing on me & having driven over 200 miles with them I do like the power delivery from low revs, the smooth acceleration/slowing down. Engine braking is non existent though.
RX7 FB S3 - RX7 FC TII Vert
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander

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ian65
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Re: Twin SU Carbs - Hif 44 1 3/4"

Post by ian65 » Fri Oct 20, 2017 6:24 pm

I think that looks really great Pete.... I much prefer the clean look. My Elford also only has the one vac connection into the SU like yours which then splits with a Y coupler to each pot on the dizzy and mine works ok.

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Rexi84
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Re: Twin SU Carbs - Hif 44 1 3/4"

Post by Rexi84 » Fri Oct 20, 2017 9:07 pm

Wow like the look of this setup a lot! th:
'Dont fear the rotor'

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MelloYello
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Re: Twin SU Carbs - Hif 44 1 3/4"

Post by MelloYello » Sat Oct 21, 2017 9:20 pm

Engine bay goals right there.

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myatt1972
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Re: Twin SU Carbs - Hif 44 1 3/4"

Post by myatt1972 » Sat Oct 21, 2017 11:31 pm

That looks great Pete s(c)
My vac lines aren't even connected so don't worry too much.
Keith...

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spirit r
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Re: Twin SU Carbs - Hif 44 1 3/4"

Post by spirit r » Sun Oct 22, 2017 7:15 am

I like your functional detail work Pete. Never saw twin SU carb feeding an 12a rotary. Your outstanding car will be more and more exotic and in perfect condition.(c)
"Das hast du gut gemacht Peter" th:

KiwiDave
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Re: Twin SU Carbs - Hif 44 1 3/4"

Post by KiwiDave » Mon Oct 23, 2017 4:23 pm

Never thought I'd actually want a SU setup on anything. Nice th:
1985 Sunrise Red S3 TWR
2003 Mercedes E320 CDI Estate AMG

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