Can't reply to the other thread on this Q, it locks me out....

Try either CP4 needles, or #6. We're using the 6s on my wife's car now, which is very similar specs-
1293cc, twin HS4s, Tighe 104 cam, Corolla rockers, rimflow valves, Perry 3-1 freeflow exhaust, Lukey muffler. C/R is about 9.4:1.
Air filters are Ramflos, with UniFilter oiled foam pads.

A/F ratio is spot on all the way up.

<edit> it was too rich just coming off idle, so we put ATF in the dampers and it's OK.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Thanks,
I will give that a go and see how it goes when i get it dynoed.
Any ideas on the dash pot springs?

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76 1275 Leyland S

I'm running what was in there, they are blue or red, I can't tell which... colour has gone....

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

What jap car had twin SUs...Datto SSS ..... signed Mental Block

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"Show me the Mini!"

I think so but they were Hitachi SUs.. not identical to the real deal.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

[quote="drmini in aust"][quote="9YaTaH"]What jap car had twin SUs...Datto SSS ..... signed Mental Block [/quote]
I think so but they were Hitachi SUs.. not identical to the real deal.[/quote]

Yeahbut....Ronnimac....are you saying you got twin SUs off a jap car or they were twin SUs fitted to a Jap car as standard equipment

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"Show me the Mini!"

They were from a 260Z and are ISO brand.
They look very similar except they have four bolts to hold the Dash Pot down and four bolts on the top of the float bowl.
I have had to modify them by fitting 3 screw dash pots from a genuine SU as original ones were pitted on the piston and shaft. I did this by using one of the existing threads and tapping 2 new ones. Also the float bowls have rubber mounts around the shaft that holds them onto the carby to stop some of the shock from traveling into the bowl.

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76 1275 Leyland S

[quote="ronniemac"]They were from a 260Z and are ISO brand.
They look very similar except they have four bolts to hold the Dash Pot down and four bolts on the top of the float bowl.
I have had to modify them by fitting 3 screw dash pots from a genuine SU as original ones were pitted on the piston and shaft. I did this by using one of the existing threads and tapping 2 new ones. Also the float bowls have rubber mounts around the shaft that holds them onto the carby to stop some of the shock from traveling into the bowl.[/quote]

Sometimes.....Ya learn something everyday.....thanks

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"Show me the Mini!"