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Home > 998cc > what is The best 998 spec

minimongrel

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84 Posts
Member #: 10419
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22nd Jul, 2013 at 04:40:20pm

I want to retain the original engine from my car and its a 998. I will be rebuilding it over the winter, With a turbo and want some big power. I have discussed maybe doing a compound turbo setup, but no idea what 2 turbos to use for that. The engine as far as i can tell has only just been bored .040. with new valves. i was originaly thinking 5psi but now, I got hungry and want to try and get to 150HP with some reliability. so long story short, how do i get this. and what will i need parts wise!

Sam

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Oxford

22nd Jul, 2013 at 04:47:21pm

read this

http://www.turbo-mini.com/index2.html

Should get you somewhere up to speed...

On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one


minimongrel

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22nd Jul, 2013 at 05:04:30pm

I guess what would be the needed things as far as Engine Mods to go forward. will i need forged pistons, New clutch, reworked head? or can i just bolt on a turbo manifold,turbo, oil cooler, FP regulator and then go to town.

apbellamy

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King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner

Rotherham, South Yorkshire

22nd Jul, 2013 at 05:09:06pm

Maybe read this:

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=333833

On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it

*hehe!*

minimongrel

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Member #: 10419
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22nd Jul, 2013 at 05:53:12pm

so by the looks of things i dont really have much more to get. just the turbo stuff and the engine is good to go.

wil_h

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Betwix Harrogate and York

22nd Jul, 2013 at 06:16:43pm

If you want 150bhp start with a 1275 not a 998. Yes it can be done, but it won't be a nice drive.

120bhp is about the limit for a driveable 998 with sensible boost, you'll need around 12psi.

Also once past 120bhp the gearbox becomes a limiting factor.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


minimongrel

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84 Posts
Member #: 10419
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22nd Jul, 2013 at 06:38:06pm

good to know, should you get forged pistons for 12 psi or would stock ones be good?
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