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Home > 998cc > my frist step on the turbo world

alexandre63

37 Posts
Member #: 9527
Member

9th Nov, 2011 at 10:20:42pm

hello
i am thinking about my furture engine my 998 hc is done (no turbo)and i have an other old engine pre A+ and i want to convert this one.
now looking for the part
the spec :

pre a+ whith dished piston
hif 38
t2 turbo
mg metro camshaft
ported 12G940(29X33) 22.5 cc
no pocketing
tc =8.5

my spec are good ?
thanks for all your helps

wil_h

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9258 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

10th Nov, 2011 at 06:16:18pm

a HIF38 will be a pain. Better to use the metro turbo HIF44 and associated plenum, it'll save lots of messing around.

tc? whats that do you mean CR? if so, then 8.5 will be fine. However, most 998 pistons have a 5.5 or 6cc dish and with no pockets this gives more like 9:1 CR, which is also fine.

Don't forget some decent ignition advance control like megajolt or similar.

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.

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