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Home > General Chat > 998 Turbo manifold help

ScottM

8 Posts
Member #: 11843
Junior Member

Maldon, Essex

Hi all, I'm new to the forum. I know this is a well-trodden conversation from the quick search I have done but time moves on and so I'll see what answers I get.

I am currently removing my 998 engine for a refurb. I've purchased a 12G295 head (which I need to completely re-furb) a T2 turbo, metro turbo carb, plenum, inlet manifold powerspark Metro turbo dizzy. Also a Metro turbo manifold... I'm currently thinking I need a mirage manifold. The turbo manifold doesn't match the T2 screw holes firstly and secondly I'm now not convinced I want to start hacking the bulkhead.

Does anyone on here know where I can get a mirage manifold? I actually phoned the old company this morning that used to make them, they stopped when the previous owner moved on.

Iíve seen the fusionfabs now do a version. Any other ideas on how I could fit the T2 without having to cut the bulkhead? Hopefully without having to spend £400?
Any advice appreciated.
PS Iím sure this may be the first of many Ďcan you helpí questions on the adventure
Thanks, Scott.*smiley*


jonny f

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1948 Posts
Member #: 9894
Post Whore

Dorking

There's no magic answer as far as I am aware.

You could get it all fitted and see if you can perhaps squeeze an angled adapter flange to convert it to T2 that angles it in closer to the block. Might have to put the oil return into the gearbox though and a couple of adjustable steadies to push it forward.

Edited by jonny f on 7th Jan, 2019.


JT

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2636 Posts
Member #: 637
Post Whore

Hertfordshire

I'm sure Matt at fusion can sort you out definitely worth ringing him or emailing him.

Welcome to the forum

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985


Turbo Phil

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4307 Posts
Member #: 20
My sister is so fit I won't show anyone her picture

Lake District

If you donít want to cut the bulkhead, itís a fusion kit or make your own.

Phil.

WWW.TURBO-MINI.COM


wil_h

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9217 Posts
Member #: 123
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Betwix Harrogate and York

I've made my own successfully a few times using thick gauge stainless tube. This can be really cheap and work as long as you're handy with a mig welder.

Otherwise the Fusion Fabs stuff is really good and actually very good value.

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.


ScottM

8 Posts
Member #: 11843
Junior Member

Maldon, Essex

Thanks all for the responses. Not sure I feel confident enough to weld my own. Looks like there is good feedback on fusion though, so becoming the favoured option. Cheers, Scott.


Steve220

54 Posts
Member #: 11017
Advanced Member

Shropshire

T2 on a 998?


ScottM

8 Posts
Member #: 11843
Junior Member

Maldon, Essex

Yep T2 on a 998. Thatís a comment to leave me hanging?


Steve220

54 Posts
Member #: 11017
Advanced Member

Shropshire

Quite a large, outdated turbo for a small engine! You'll probably be getting full boost at 4.5k or higher!

Edited by Steve220 on 10th Jan, 2019.


Turbo Phil

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4307 Posts
Member #: 20
My sister is so fit I won't show anyone her picture

Lake District

Though itís old, the R5 spec T2 works quite well on a 998.

Phil.

WWW.TURBO-MINI.COM


wil_h

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9217 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

Yep, depends what T2.

The R5 GT turbo T2 is the same as the later GT1548. Perfect for a 998, full boost from 3500 at the latest.

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.


TurboTom

248 Posts
Member #: 7936
Senior Member

DK-8450 Hammel. Denmark

i have just never seen any for sale. Do you know where you (i) can get one ?


On 11th Jan, 2019 wil_h said:
Yep, depends what T2.

The R5 GT turbo T2 is the same as the later GT1548. Perfect for a 998, full boost from 3500 at the latest.

If i have more toys than you when i die, I WIN


ScottM

8 Posts
Member #: 11843
Junior Member

Maldon, Essex

It's a R5 GT Turbo T2, hopefully should spool much quicker than a T3 (so I'm told), feeling slightly relieved from the above. I sourced it from ebay.


ScottM

8 Posts
Member #: 11843
Junior Member

Maldon, Essex

Hi Iíve been thinking it over and decided to chop the bulkhead. Was going to purchase from mini spares. Has anyone else used this one, thereís no info on gauge / thickness but seems good value? Thanks.


Turbo Phil

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4307 Posts
Member #: 20
My sister is so fit I won't show anyone her picture

Lake District

The bulkhead boxes seem to be a generic thing. I'd seam weld the whole thing though. When I bought mine many, many years ago one end had fallen off in the post !

Phil.

WWW.TURBO-MINI.COM


ScottM

8 Posts
Member #: 11843
Junior Member

Maldon, Essex

Will do, great advice. I wouldnít want it coming apart once in. Thanks.


wil_h

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9217 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

Cutting the bulkhead is not a good idea unless absolutely necessary. At one time there was no choice in manifolds and turbos, so cutting the bulkhead was the only option.

It's much better to not cut it. The box section across the engine bay is quite structural and better to leave complete.

Better to buy the manifold. Once you fitted the box, messed around with the heater, still had to spend money on a downpipe, it's only a few hundred more and a much better solution.

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.


ScottM

8 Posts
Member #: 11843
Junior Member

Maldon, Essex

Thanks Wil, puts me back on the fence again... I was thiking it would just give me much more space generally anyway and better airflow around the whole unit. I had imagined once welded is place it should be quite rigid again.


wil_h

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9217 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

The box is not as good as the box section.

Also, if it helps, the metro manifold is also not really that good

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.


Turbo Phil

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4307 Posts
Member #: 20
My sister is so fit I won't show anyone her picture

Lake District

It might not appear that good, but when you can make 230+hp using one is it really that much of an issue ? Theyíre relatively cheap to buy and almost indestructible. 😎

Phil.

WWW.TURBO-MINI.COM


jbelanger

1243 Posts
Member #: 831
Post Whore

Montreal, Canada

On 16th Jan, 2019 Turbo Phil said:
It might not appear that good, but when you can make 230+hp using one is it really that much of an issue ?


If you believe that running an intercooler makes sense, you should see the flaw in this argument.

http://www.jbperf.com/


jonny f

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1948 Posts
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Dorking

Going a little off topic, I've never run one, but interested to know why a fusion one would be a better choice over the standard one? In terms of flow etc.


Turbo Phil

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4307 Posts
Member #: 20
My sister is so fit I won't show anyone her picture

Lake District

On 16th Jan, 2019 jbelanger said:
On 16th Jan, 2019 Turbo Phil said:
It might not appear that good, but when you can make 230+hp using one is it really that much of an issue ?


If you believe that running an intercooler makes sense, you should see the flaw in this argument.


Granted itís far from optimal by design. But show me another manifold that fits down the back of the engine that is ? Im sure somebody such as yourself could design far better, but for the cost itís still a cheap and reliable option.

Phil.

Edited by Turbo Phil on 17th Jan, 2019.

WWW.TURBO-MINI.COM


D4VE

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2826 Posts
Member #: 10749
Post Whore

lowestoft suffolk

if u do go down the bulkhead box route i think i still have mine in the loft? Ill check to see if its there or if ive sold it (if your interested)

On 24th Oct, 2015 jonny f said:
Nothing gets past Dave lol

NOTHING GETS PAST ME!! *tongue*

1/4 mile 14.7 @ 96mph 12psi boost
Showdown class A 2nd place 18.6 @ 69mph


wil_h

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9217 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

My point is that the Metro manifold is not that good, so why cut your car to bits to use it.

The 'log' manifolds are possibly no better, but fit without ruining the strength and originality of the car.

Plus with all the new MOT rules, better to keep it all as it was.


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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