Hello all.
Would like to have an 1100 built for my wife's Mini..

Have always been a fan of forced induction but not sure if it is going to break our budget. We're looking at about 4k to build an every dayer.
If all goes to plan.. this weekend should have a running 850 and a 998 in unknown condition. Also have a so called performance 12g202 head.

What are my options?

Stoke the 998 and fit the 12g202 head with low compression pistons to go supercharged (considered turbo but am concerned we may damage the driveline, even though we love our Mini and take care of her).

Or forget the forced induction and run high compression on a stroked 998.
Obviously want to run on unleaded and happy to assemble the motor but don't have the equipment or experience to machine or bore.

Sorry if this has been asked a million times before

Look forward to your advice.


Cheers,
Steve

if its an everyday drive....

go N/A with a mild cam and some nice compression.

the 12g202 is a standard 1098cc head so will need some work.

theres nothing easy about boosting an a-series and reliability is an issue with turbo or supercharging equally, especially on a smallblock.

Easiest for cheap cruising IMO is a well built lazy 1275. Nothing fancy, but the extra cc's make up for the lack of 'performance' parts. And there's no need to rev it out etc.

A Rover 1.3i is probably a good bet, no race car, but decent performance, reliability (I would expect so at least) and can be bought as a front cut with disc brakes.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T

I considered these but thought that the front cuts cost about 5K.. which is a bit exie to me. If I have something built, I at least know whats been done to it compared to a possibly thrashed out Rover.



Spaceboy, What do you consider "nice compression" for a NA?

What stage is a RE13 Camshaft?
(Sorry but my daily drive is powered by a RE 13BT.. so don't know much about cams and valves)

Looking forward to putting this Mini on the road.. probably more than the 2 and a bit years its taken me to get my RX going and its still having constant improvements.

Guess its not about the speed.. but more the feel.

_________________
To have a true objective opinion on all things motoring, one must experience a variety of configerations and combinations on a regular basis in an effort to not form an excessive attachment... Oh who am I kidding...

i would say for a 998 / 1100 go for a 28/62 grind cam a good set of extracters and a 40 webber / 1.75in s.u.

and while your at it open the ports up a little and match port them to your manifolds/ carb

run about 9.5 - 10.5:1 comp

or for a 1275 run a 30/70 cam

both equally as much fun and not over the top a daily user.

nb : if you put the same cam in a smallbore eng. it will be the same as if you put a bigger cam in a big bore

hope this helps

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120bhp with 450kg just fun waiting to happen

We were prob. drunk when we set it up last and thought this will be a good idea

In my opinion, for a reliable daily go with a warmed up 998/1100. I run a 998 bored .040" with a Wade 104 cam, flat top pistons, a 12G295 head and twin 1 1/4" 's. Its a smooth motor with plenty of power to get around town. Should be nice and reliable for years to come.

With the parts you've got I'd be tempted to clean up the 998, stroke it if you want, a mild cam (wade 104), some flat top pistons, clean up the 202 head and some extra breathing (extractors and twin carbs).
Should run around 9.5 - 10.5 : 1 compression which is plenty without the risk of damaging anything.
Depending on the condition of the second hand motors you should get plenty of change from your 4 grand too!

Just my 2 cents anyways.

Cheers

_________________
Mister White Keys
"He who has the most toys, Wins"

1963 Austin Countryman Woody
1964 Morris 850 Van
1967 Austin Countryman
1975 Range Rover 2 Door
2004 Subaru Forester XT
2015 Potts Teardrop Camper
RIP 1990 Citroen BX 16Valve

no matter what engine you give new life too, make sure you give the gearbox the same attention Oh and dont bother fitting a new single pin in the diff carrier they are not up to the standard of the old ones best to fit a cross/4 pin (IMO)

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http://www.youtube.com/watch?v=nDMkVq1jRGU

Give Graham Russell (Russell Engineering) a ring. He knows exactly what mods work best together and how much power/driveability you can expect from different combinations. He won't push you towards an expensive solution and his machining is first rate too. You can get good power from an 1100 these days.

Pete

Thanks Pete but I've already purchased a Jap import 1275 from Brickworx thats going in.

Just gotta finish spraying the engine bay.. then in she goes!

_________________
To have a true objective opinion on all things motoring, one must experience a variety of configerations and combinations on a regular basis in an effort to not form an excessive attachment... Oh who am I kidding...

_________________
To have a true objective opinion on all things motoring, one must experience a variety of configerations and combinations on a regular basis in an effort to not form an excessive attachment... Oh who am I kidding...