1275 cam options

Common upgrades - A-Series mods, brakes,wheels, handling, interior.

1275 cam options

Postby jackmansell » Wed Mar 30, 2016 7:18 pm

hi all, after taking Borris out to Curborough this weekend and taking part in the Easter Bunny Autotest it appears ive worn a lobe out on his cam. im wondering what cam i should replace it with. at the moment its running a standard cam, but my engine has a lightly ported big valve head, stainless LCB exhaust and HIF44 carb on an alloy inlet. obviously, a more sporty cam would be best but i hear mixed reviews about the quality of kent/piper cams etc. im looking for a fast road type really, dont want it lumpy as nans porridge in lower revs, cheers! :D
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Re: 1275 cam options

Postby Custard » Wed Mar 30, 2016 10:22 pm

I put the Swiftune SW5 in mine and I am happy with it, standard 1275 Midget, with a single HIF.

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Re: 1275 cam options

Postby Panky » Wed Mar 30, 2016 10:43 pm

Hi Jack and welcome :)
I've got a 1275 Cooper and fitted it with a stage 3 head and a Piper 285, goes like absolute stink 8) When it's actually on the road that is :roll:
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Re: 1275 cam options

Postby Plin » Wed Mar 30, 2016 10:46 pm

I haven't got a clue about your query! But welcome to the forum Jack :D
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Re: 1275 cam options

Postby jackmansell » Thu Mar 31, 2016 7:14 pm

oh yea forgot this was my first post! ive been on the mmoc forum a while and have joined htis one some time last year but never posted, so hello all!! thanks for the replies, the swiftune stuff sure does look nice, i hear theres a man called AC Dodd who makes cams, any idea of his prices?
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Re: 1275 cam options

Postby bmcecosse » Tue Apr 05, 2016 6:37 pm

I agree about mixed reviews with the Cos you suggest. A C Dodd gets great Mini reviews - especially for his RS cam. That's where i would be going. But an odd thing to wear a lobe on a cam - how do you know this has happened? He may not take it in exchange - so you should look for a 'cheapy' standard cam to exchange with him.
 









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Re: 1275 cam options

Postby jackmansell » Thu Apr 07, 2016 7:50 pm

ah upon further inspection its actually my carb thats worn out, i assumed it was my cam cos the heads been newly done and i thought my carb was in decent condition, apparently not. its drives rough and is a little low on power, never stripped a HIF 44 before but i assume theres some form of diaphragm/ gasket under the float chamber in the square part?
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Re: 1275 cam options

Postby bmcecosse » Sat Apr 16, 2016 7:40 pm

That sounds a lot more reasonable ! Seems you are just shooting into the dark Jack! Unusual for these carbs to give trouble - what exactly are the symptoms?
 









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Re: 1275 cam options

Postby jackmansell » Sun Apr 17, 2016 6:04 pm

thats exactly what i was doing haha. well, its not the easiest to start at the minute, whereas before this issue it would fire right up first time. it kind of skips a beat or feels like its hitting flat spots as you accelerate and idling is a little rough, sometimes dying for no reason but not often. then ill be driving it and itll be just fine! dad reckons its just dirt build up and i did use one of those carb/injector cleaner aerosols which made it run sweet for about a day. ive ordered a rebuild kit and a BDL needle as i know my current one isnt correct. hoping that when i strip it down, clean everything and set it up correctly (found a link for the right way to do it) itll run okay again. then at some point im putting a Crane VPC3 cam in it and getting an uprated clutch with hydraulic operating system.
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Re: 1275 cam options

Postby bmcecosse » Mon Apr 18, 2016 1:23 pm

Well -'Crane' may have a reputation with big American engines - but I've never heard of them being recommended for A series engines. But it's your choice - I've already told you where I would be going for a camshaft... great feedback and excellent reputation. You do know it's an engine-out job to change a 1275 camshaft..... ? To clear any 'dirt' from an SU carb - rev it up and clamp your hand over the carb intake - it will suck up anything lying in the float chamber.
 









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