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Home > Help Needed / General Tech Chat > whats needed to build a high reving turbo motor

mini.cooper998

225 Posts
Member #: 3772
Senior Member

Wigan

6th Sep, 2012 at 07:58:50pm

as the question says, ive heard that turbo motors are quite low reving before out of puff. but i just wondered what is needed to build something with a good long rev range.

thanks

Andy

also AVR sell 2 phase 2 cams one billet one reprofile. am i right in thinking the reprofile is just a standard cam built up and then re-profiled in phase 2 lobe spec, if so whats wrong with that as its £110 cheeper.

Thanks

Brett

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9502 Posts
Member #: 1023
Post Whore

Doncaster, South Yorkshire

6th Sep, 2012 at 08:07:03pm

Its all about the cam ohh and a god like turbo..

Yes i moved to the darkside *happy*

Instagram @jdm_brett


BENROSS

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9812 Posts
Member #: 332
Resident Cylinder Head Modifier

Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem

6th Sep, 2012 at 08:13:00pm

in short! a well ported head and race valves, etc .... a 998 engine and say a MG n/a cam timed in a little late. maybe a T3 turbo to give it some legs....... the combinations are endless!!!!!

the diffrence of the phase 2 cams are one is reprofiled from any old doner cam and ones made from a billet peice of steel and ground 100% accurate ...






bennyy

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2233 Posts
Member #: 9037
Post Whore

Doncaster, yorkshire

6th Sep, 2012 at 08:32:38pm

An engine and turbo makes a good starting point, and big balls.

Audi s4 b5 - 470bhp & 486ft lbs

On 15th Mar, 2012 wil_h said:
Yes, Carl says he gets requests for rimming all the time

On 30th Apr, 2012 Brett said:
yeah stick the bit in and give it a wobble *wink*


Joe C

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12307 Posts
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Carlos Fandango

Burnham-on-Crouch, Essex

6th Sep, 2012 at 08:39:01pm

turbo choice is critical here,

yiu wan somthing big and efficient, that will maximize boost vs turbine pressure, as with a long cam turbine presure will kill the power from pumping loses on a small turbo.

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



wil_h

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9258 Posts
Member #: 123
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Betwix Harrogate and York

6th Sep, 2012 at 09:11:42pm

How high is high?

http://www.youtube.com/watch?v=mLl2fK-fBbI

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



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.


gr4h4m

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4890 Posts
Member #: 1775
Post Whore

Chester

6th Sep, 2012 at 09:14:59pm

Oooo 8k is a bit of a screamer...

Iirc I read somewhere the don has seen the wrong side of the 9k line?

Edited by gr4h4m on 6th Sep, 2012.

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


minimole23

4309 Posts
Member #: 1321
Post Whore

Wiltshire

6th Sep, 2012 at 09:28:03pm

yeah, rev limit 9200rpm iirc.

It is because of the don that for my next engine I will be going for a force racing prepped a plus crank. If the don ain't bust it I doubt I will!

On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding

Tom Fenton
Site Admin

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15302 Posts
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Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

&

TM legend.

Rotherham South Yorkshire

6th Sep, 2012 at 09:52:37pm

According to the tell tale in the ECU the DON has actually seen more like 9500 at some point.


On 29th Nov, 2016 madmk1 said:

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


Like fuel 😂😂
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