What sort of....
Turbo Mini Forums

...0-60 can I expect with a standard Metro Turbo engine in my Mini?

And what sort of CHEAP performance upgrades would you folks recommend without taking the poewr up to geabox-busting power!

Jim

I recall a 1984 MG metro turbo was at TRAX2003. It was std, except for the modulated boost being disconnected, running 7psi straight.

I'm sure this was only doing 10 seconds to 60. MiniWilliams and myself were doing 5.1 to 6.0 seconds on the same strip...

Ok. Here's another simple question then - what're the simple tuning steps to get closer to 130bhp?

I'm guessing camshaft (how much & what type?), decent air filter & exhaust, intercooler & boost raised - but what to & how?

Am looking for a budget ickle pocket rocket that'll at least hold it's own with the Saxo fraternity - how should I go about it and what will I have to spend??

Ooh - and what sort of 0-60 will 130 bhp get? Or to turn the question around, what do I need to do to dip my 0-60s into the 7 second area?

gearing is more important than pure power.

Everyone knows that instructions only have to be read if the thing doesn't work....

An intercooler install can be done for as little as twenty quid if you scrounge the small ads and aren't too concerned about appearance.
I'd list this as #1 priority given your next plans...

A decent unrestrictive (1 7/8" minimum) downpipe and exhaust should also be considered. A single box will be fine. You should also have a decent air filter, but considering the montego turbos used the same, the std plastic airbox and filter will be more than enough for 130hp with little or no restriction. #2 priority - at this stage a rolling road tune is essential. Scrounge the small ads and a single box exhaust and 2" downpipe will be yours for under ?75

A lower CR and boost upgrade (along with a rolling road tune) will do more than cams and rockers on their own...
I'd personally say bite the bullet and ask Mark to knock you up a head that'll fit your budget...
Port matching the exhaust manifold could be done at the same time for a little more i dare say. #3 priority i think...

This should easilly see you up 125hp with 14psi of boost on optimax - maybe a little more...

Of course, this is when things start getting very expensive - stuff starts breaking and wearing out, so you might want to locate a good gearbox to have in reserve...

Edited by turbodave16v on 29th Mar, 2004.

Dave, r u sure that metro turbo only ran 10 seconds ish to 60? Only my N/A MG Mini does it quicker than that.

Oh and while I'm posting, what final drive ratio does a 1988 metro turbo gearbox have as I have a turbo gearbox on my mini? I've been told it's a 2.9 final drive.

And I got my new turbo today, I'll post a pic when I have found somewhere to host it. I scrapped the T3 as it was knackered.

Here' here Mark, a 2.9 diff isn't a good drag diff LOL,

I remember a few years ago a 1275 cc N/A mini with 100 BHP did 0-60 in 5.5 sec, it was a rally type thing, but i think it had a 4.1 diff! so gearing is a lot like you say.


Metro turbos have a 3.2 diff.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

That turbo didn't dip under 10 seconds.... but i believe the std turbo won't quite do 60 in second (same with a nat asp) even on 13" wheels, so is always going to need shifting into third to get to sixty...

I always thought the era was quoted in the 8's or something?

Metro turbo around 10 i can believe, there is a fair bit of extra weight plus the 13's to contend with.

Figures for the ERA were well over exagerated.... It was amost exactly the same as the MG Metro, except the modulated boost rpm was alledged to be altered - by hardly a significant amount... The ERA's were't that light either...

These are the 'book figures for the original mk2 Mini Cooper S:

Top Speed 0-60 SQM MPG Engine Pwr
96mph 11.2s 18.4s 30mpg 76bhp @5800

If you have an MG engined mini that can do 60 in sub 10, then you have something very special or modified...

Edited by turbodave16v on 30th Mar, 2004.

My N/A is modified but not that much.
Basically a standard 1990 1275 MG Unleaded type with:
Custom Exhaust System (2 inch)
Weber 42 Twin Choke Carb on Maniflow 6" Steel Inlet and K&N
Cylinder Head has had the Valve Throats opened to the Max and valves recut with 3 angles, and skimmed, and has been ported and polished.
And 1988 MG Turbo Gearbox as the engine ripped my N/A one apart, stripped all the teeth off.

It does go well enough for what I need but it's very uneconomical at 18 mpg give or take a bit depending how much I thrash it.

might be counting chickens before hatching and all that , but if my car runs ok and is at the rolling road day , it will be interesting to see how close i get to the top boys ( counting matt out , if i get within 70 brake of him i`ll be happy)
My own head ,bog std bottom end , cam changed and little esle.
So if it makes 130 brake you have your answer to how to make the power .
As for 0-60 you can gear your car to drop your time but will lose out on top end , you pays your money and makes your choice.

Everyone knows that instructions only have to be read if the thing doesn't work....

It is true, but i can only get 55 out of 2nd gear on my standard metro turbo.

Previous Engine: 1040cc Morespeed engine, 1275 turbo head T2 Turbo Mirage Manifolds Megajolt
Previous engine: STD metro turbo, megajolt
Drives: 399bananahp (flywheel) Honda Civic Vtec b18c4 T28 Turbo 1968 Mini

Megajolt maps to download: http://www.jamesfawcett.co.uk/cms/index.ph...&gid=3&Itemid=3