Re: Converting SPi engine back to carb and electronic dizzy

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Re: Converting SPi engine back to carb and electronic dizzy

Taffy

26 Sep 2006 14:13

> Hi....
> I have installed an unleaded 1275 A series in my Mini and am having
[quoted text clipped - 14 lines]
>
> Dave

Well Dave the best way to get it all set up right would be to put it on
the rollers at a good engine tuner, that way they can find the perfect
needle and sort out your dizzy advance too.

Still a 2" exhaust is a tad too big for a standard engine and i've
heard 1"3/4 or no more than 1"7/8 would have been more suitable
perhaps? But I doubt the exhaust would affect the maximum speed
though?

Taffy

Dave Bullock

26 Sep 2006 12:10

Hi....
I have installed an unleaded 1275 A series in my Mini and am having
'funnies' with getting the power across the whole rev, range.
I have a HIF44 carb with LCB and 2" exhaust system to a DTM twin tailpipe
box.
I have a dizzy with electronic amplifier block from a Metro.
Whilst the car has plenty of 'grunt' at low speeds it is 'breathless' at
high speed only managing 70mph or 80 downhill, so is useless when
overtaking!
The mixture looks OK as far as MOT goes and the exhaust is slate grey, the
plugs light sand colour.
What I am wondering is if the dizzy has the wrong advance curve or the
needle the wrong profile.
Has anyone successfully done this retro conversion and how.

Thanks in anticipation...

Dave

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