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Chalkie

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Northamptonshire.

right I have an 850 engine

and i really don't think tis gonna be quick enough :)

will a 998 cam boost power and a hs4 carb? maybe a 998 head?

anything else?


wez

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Stoke on Trent

there's quite a few tips on 850s in both vizards books, the yellow one and the 'how to modify your mini' one as well.

one day boost will be mine!

On 10th Mar, 2012 Joe C said:
TBH peple stick it everywhere... and theres merits to each...


gr4h4m

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Chester

Didnt one of the mini mag have a an old race car 850 that hit 90bhp. I did think it was on the high side but something to aim for.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!


Chalkie

1909 Posts
Member #: 9764
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Northamptonshire.

Oo 90bhop thats nuts!! well ill look in viards book later and anyone know if a 998 cam would make it better?


theoneeyedlizard

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The Boom Boom speaker Police!

Essex

I personally wouldn't bother.

In the 13's at last!.. Just


Tom Fenton
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Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

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On 2nd Apr, 2012 theoneeyedlizard said:
I personally wouldn't bother.


Agree with this. You'll spend a fortune trying to get decent power out of an 850. If it was for specific race regs fair enough, but for a road car spend a lot less than you will on an 850 and go find a standardish 1275 and plonk it in.


On 29th Nov, 2016 madmk1 said:


On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else


Like fuel 😂😂


Chalkie

1909 Posts
Member #: 9764
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Northamptonshire.

Ill just stage one it and run it around then :) cause I'm saving the 1275 for a 16valve convertion


jlay

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essex

most things that work for 998 will work on an 850. be carfull about cam changes as the 850's dont have cam bearings.
Its worth doing whatever you fancy though clean up a 998cc head or even a 1098 head if you can get it skimmed to up the compression ratio and yeah a 1.5"carb will work. I personally wouldn't fit an lcb i would fit a 998 cooper freeflow 3-1 manifold. just have fun

My small bore turbo project http://www.turbominis.co.uk/forums/index.php?p=vt&tid=473901


Chalkie

1909 Posts
Member #: 9764
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Northamptonshire.

Its only properly for a year and don't have cam bearings :S WTF! on that one :/ may have to see if i can get some machined in and cooper system? can you expain haha :)?


jlay

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essex

Yep no cam bearings the cam runs straight in the block mad idea. you can have it machined alot of the racers did but this is quite a complicated thing and might be quite costly. not to say you cant change the cam though. with raised compression and worked head bit better fueling it could be more fun. I have an 850 auto engine at my lockup now that must have been scary to drive lol

My small bore turbo project http://www.turbominis.co.uk/forums/index.php?p=vt&tid=473901


Chalkie

1909 Posts
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Northamptonshire.

lmao! very nice :) well ill prime it all and fire it up out the car this week

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