mini 1275 engine

Post by **bigjohn** » Thu Sep 03, 2009 1:06 pm

a mate as offered me a 1275 mini engine minus gearbox am i right in thinking you cant use the mini block and would need an ital/marina/miget block?
you advice would be much apreciated

Post by **bmcecosse** » Thu Sep 03, 2009 2:16 pm

No use i'm afraid - although the head make' s a great upgrade for a 1098 engine !

Post by **GAS** » Thu Sep 03, 2009 2:17 pm

you would need at least a midget crank,sump etc.
The rear oil seal is the tricky bit,i think

Post by **jonathon** » Thu Sep 03, 2009 2:41 pm

You can use the Mini engine, our engine builder has converted several to RWD using the Maestro crank seal and venting plate. Its not cheap to do but cures the problem of one ,finding a RWD 1275 and the crank oil seal, plus it offers added ventilation of the sump should you go for forced induction.

Post by **mike.perry** » Thu Sep 03, 2009 3:28 pm

A 1275 mini engine FWD would be a more interesting project.

Post by **ASL642** » Thu Sep 03, 2009 4:00 pm

It might prove easier/cheaper to find 1275 cc Ital/Marina

Post by **bmcecosse** » Thu Sep 03, 2009 4:18 pm

Still need to add a RWD type crankshaft Jono - as well as the seal parts, to the price list!

Post by **jonathon** » Thu Sep 03, 2009 4:53 pm

The Maestro crank is used to convert to RWD which comes with the seal. Yes its more expensive but it doesn't leak, breathes better and uses up 1275 Mini engines if one is unable to find a 1275 RWD unit. See pics (seen here with an original RWD unit)

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Post by **bmcecosse** » Thu Sep 03, 2009 5:07 pm

Great pics - but Maestro cranks aren't in great supply I suspect - unless you have a handy stock ??

Post by **jonathon** » Thu Sep 03, 2009 5:13 pm

That's why we are offering the service BM. I believe we have around 20 left.
Top pic shows bespoke flywheel machined for a Ford clutch if going the Type 9, 5 speed route.
Current engine development revolves around 1098's and 80tho overbore, MG metro heads and 1.5" carb. = big torque and 75-80 bhp.

Post by **bmcecosse** » Thu Sep 03, 2009 6:56 pm

Sounds good Jono - would be even better if you fitted MG Metro camshaft too! Well done 'cornering the market' in Maestro cranks !

linearaudio · Post by **linearaudio** » Thu Sep 03, 2009 8:20 pm

Jonathon, have you details of 80 over pistons for the 1098 please? Last time I was contemplating things like that I found the shallow crown height a problem, that was a few years back though!

Post by **bmcecosse** » Thu Sep 03, 2009 8:26 pm

They are available from Australia I believe - at a price! Unless of course J has sourced some pistons from another engine - that can be used ? Back in the day - Imp pistons used to be popular for Mini engines - possibly also suitable for the longer stroke 1098.

Post by **jonathon** » Thu Sep 03, 2009 9:29 pm

Correct BM, the pistons are from OZ. We have used the others for our 1360cc conversions and have found them to be excellent quality.
I do not have any tech details as we do not build the motors. If you are interested LA I can obtain details tomorrow.

Post by **bigjohn** » Fri Sep 04, 2009 11:57 am

so in the long run its worth keeping then?

Post by **bmcecosse** » Fri Sep 04, 2009 3:39 pm

Errr - NO! Keep the head - use it on a 1098 -flog the engine to a Mini person. I suspect Jono's conversion on the 1275 will be close to 4 figures. Of course - if that's what you want - contact him!

Post by **bigjohn** » Fri Sep 04, 2009 4:41 pm

head and carbs of course but is it worth keeping the pistons and rods?

Post by **bmcecosse** » Fri Sep 04, 2009 4:56 pm

I kept a set for over 20 years - and eventually used them in a Mini engine. Just flog the complete Mini engine - less head - there will be plenty of takers.

Post by **bigjohn** » Fri Sep 04, 2009 8:17 pm

okay doky will do

Post by **olly12383** » Wed Nov 04, 2009 7:41 pm

Do you also need to mod the oil pickup thread?

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