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 145 Posts Member #: 5620 Advanced Member Dunstable, Bedfordshire |
23rd Oct, 2009 at 08:52:09am
Hi Everyone
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 9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
23rd Oct, 2009 at 09:03:36am
The GT1548 is an excellent choice for a midpowered engine with excellent driveability. As a guess the 49 is very similar, what are the A/Rs.
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. |
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 1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
23rd Oct, 2009 at 09:03:44am
Turbo Tel used a GT1548 on his 1293 with great results. See if you can get a compressor map for the turbo, see how it compares with that and then it's up to you if you think it will suit your application or not
Edited by GaryOS on 23rd Oct, 2009. On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse  On 30th Apr, 2010 Rod S said:
Gary's description is best |
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145 Posts Member #: 5620 Advanced Member Dunstable, Bedfordshire |
23rd Oct, 2009 at 09:37:36am
cheers for quick responces guys
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1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
23rd Oct, 2009 at 09:40:11am
That sounds like it could definately be of use on a big bore, depending on what you want from a turbo motor. What sort of boost are you thinking of running? On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse On 30th Apr, 2010 Rod S said:
Gary's description is best |
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
23rd Oct, 2009 at 09:45:03am
I'd agree, a good choice for 150 or 160bhp at 12psi based on a guess that it's similar to the 48, but a bit smaller 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. |
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145 Posts Member #: 5620 Advanced Member Dunstable, Bedfordshire |
23rd Oct, 2009 at 09:55:22am
......well i will go for it then and buy it.....i think i will run very low boost as am using the original internals of the spi but a metro turbo head
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 10023 Posts Member #: 1456 Mongo Barnsley, South Flatcapshire |
23rd Oct, 2009 at 10:03:49am
The metro turbo head isn't really any better than an spi cooper head. If anything it will probably flow worse. If something is worth doing, it's worth doing half of. |
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145 Posts Member #: 5620 Advanced Member Dunstable, Bedfordshire |
23rd Oct, 2009 at 10:17:52am
On 23rd Oct, 2009 minimadmotorman said:
The metro turbo head isn't really any better than an spi cooper head. If anything it will probably flow worse. really how comes dude ? |
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1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
23rd Oct, 2009 at 10:21:07am
OK, it sounds like that turbo will definately suit you then. The next step is to think about a manifold. I'm guessing it wont have a T2 or T3 flange so you will more than likely have to make an adapter plate On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse On 30th Apr, 2010 Rod S said:
Gary's description is best |
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145 Posts Member #: 5620 Advanced Member Dunstable, Bedfordshire |
23rd Oct, 2009 at 10:32:20am
On 23rd Oct, 2009 GaryOS said:
OK, it sounds like that turbo will definately suit you then. The next step is to think about a manifold. I'm guessing it wont have a T2 or T3 flange so you will more than likely have to make an adapter plate 
this is it so has the 3 prong set up....maybe it will go on a mirage manifold set up? |
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1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
23rd Oct, 2009 at 10:36:05am
I have a 3 bolt flange on my GT1544S so I made my own manifold. I didn't want to spend money on a manifold that I would have to modify. Remember, the mirage downpipe will be next to useless aswell On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse On 30th Apr, 2010 Rod S said:
Gary's description is best |
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 16540 Posts Member #: 4241 King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner Rotherham, South Yorkshire |
23rd Oct, 2009 at 10:36:23am
Do garrett not have cad drawings of all the flanges on their website?? On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it 
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1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
23rd Oct, 2009 at 10:39:25am
On 23rd Oct, 2009 apbellamy said:
Do garrett not have cad drawings of all the flanges on their website?? They do. The GT1549 isn't listed though On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse On 30th Apr, 2010 Rod S said:
Gary's description is best |
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145 Posts Member #: 5620 Advanced Member Dunstable, Bedfordshire |
23rd Oct, 2009 at 10:39:28am
On 23rd Oct, 2009 GaryOS said:
I have a 3 bolt flange on my GT1544S so I made my own manifold. I didn't want to spend money on a manifold that I would have to modify. Remember, the mirage downpipe will be next to useless aswell cheers for the advice gary :) have you seen the set up where people bolt onto the clutch housing i am wondering the positives of this, but if i am making a bespoke manifold and downpipe would this be better? |
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1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
23rd Oct, 2009 at 10:43:03am
No problem. Paul S built an over the clutch manifold for his GT2056 but the main reason for this was to avoid a bulkhead box. The GT15 series are small enough to fit in the conventional location without cutting the bulkhead. I don't know if there are any performance gains/losses between the two setups. On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse On 30th Apr, 2010 Rod S said:
Gary's description is best |
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 1060 Posts Member #: 588 Post Whore Delaware, USA |
24th Oct, 2009 at 01:21:42am
That was the beauty of the GT1548-- T2 flange Though I don't know if anyone has actually fitted one to a Mirage as yet..
website:- http://www.terryhunt.co.uk
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1060 Posts Member #: 588 Post Whore Delaware, USA |
24th Oct, 2009 at 01:26:49am
Bingo!
website:- http://www.terryhunt.co.uk
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 720 Posts Member #: 2588 Post Whore Pretoria South Africa |
24th Oct, 2009 at 10:17:01am
Cheers Tel !
"So wat we gonna do tonight Brain?"
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1060 Posts Member #: 588 Post Whore Delaware, USA |
25th Oct, 2009 at 04:40:58am
website:- http://www.terryhunt.co.uk
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 7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
25th Oct, 2009 at 07:34:11am
On 23rd Oct, 2009 battleroc said:
On 23rd Oct, 2009 minimadmotorman said:
The metro turbo head isn't really any better than an spi cooper head. If anything it will probably flow worse. really how comes dude ? Because it's got four giant rubbish exhaust valve stems which do nothing good except reducing the valve throat area which is... no good 
On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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