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 536 Posts Member #: 5449 Post Whore Melton Mowbray |
25th Feb, 2012 at 08:01:56pm
Hi,
On 25th Sep, 2009 mini13 said:
cool, i'll pop over with my tool and some lube, lol 1293 88.8hp 82.2ftlb 17.3 1/4 @ 78 mph Naturally Aspirated (for now) |
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 9812 Posts Member #: 332 Resident Cylinder Head Modifier Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem |
25th Feb, 2012 at 08:06:08pm
no its not, 2" system genrally up to 250 bhp, 2.5" 300 odd bhp
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 11046 Posts Member #: 965 Post Whore Preston On The Brook |
25th Feb, 2012 at 08:18:10pm
Might struggle to squeeze it down past eh subframe and pot joint though On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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536 Posts Member #: 5449 Post Whore Melton Mowbray |
25th Feb, 2012 at 08:21:45pm
Didn't think about that, it is quite chunky!
On 25th Sep, 2009 mini13 said:
cool, i'll pop over with my tool and some lube, lol 1293 88.8hp 82.2ftlb 17.3 1/4 @ 78 mph Naturally Aspirated (for now) |
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 8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
25th Feb, 2012 at 08:45:08pm
It will go past the subframe with a bit of trimming. https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
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11046 Posts Member #: 965 Post Whore Preston On The Brook |
25th Feb, 2012 at 08:59:36pm
On 25th Feb, 2012 matty said:
It will go past the subframe with a bit of trimming. Or hammering On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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3006 Posts Member #: 2500 Post Whore Buckinghamshire |
25th Feb, 2012 at 09:03:01pm
Perlease, we dont do hammering on here - its called "adjustment" |
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536 Posts Member #: 5449 Post Whore Melton Mowbray |
25th Feb, 2012 at 11:20:56pm
Would it free up a few extra horses on a fast road spec engine or only really benefit a 200+ hp engine? Trying to work out if its worth making up a new exhaust or sticking with the 2". On 25th Sep, 2009 mini13 said:
cool, i'll pop over with my tool and some lube, lol 1293 88.8hp 82.2ftlb 17.3 1/4 @ 78 mph Naturally Aspirated (for now) |
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11046 Posts Member #: 965 Post Whore Preston On The Brook |
25th Feb, 2012 at 11:51:43pm
I've gone for 2.25" and aiming for 200hp tops. if that helps any On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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 2233 Posts Member #: 9037 Post Whore Doncaster, yorkshire |
26th Feb, 2012 at 08:21:23am
While I am making a new system I am going to go for 2.25", hoping for the 200hp figure 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  |
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 9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
26th Feb, 2012 at 08:39:04am
The GT17 is 2.25" on the turbine exit, so makes sense to stick with that as a maximum. But 2" is easier to source and fit. It's tight on the subframe and past the selector.
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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 9502 Posts Member #: 1023 Post Whore Doncaster, South Yorkshire |
26th Feb, 2012 at 10:40:46am
my mid pipe is 2" currently no issues with 20+psi boost
Yes i moved to the darkside |
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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 |
26th Feb, 2012 at 11:48:23am
We used one of those pipes on the upside down skip, it was snug, but went down the back OK with an extra 45 degree bend added.
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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 3074 Posts Member #: 1348 Post Whore wakefield West Yorks |
26th Feb, 2012 at 07:33:10pm
Mines 2.5
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3594 Posts Member #: 655 Post Whore Northern Ireland |
26th Feb, 2012 at 07:56:33pm
There are few negatives other than fitment for a larger pipe in a turbo car, especially close to the turbocharger.
9.85 @ 145mph
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 3673 Posts Member #: 9300 Post Whore Quarry Bonk |
26th Feb, 2012 at 08:09:27pm
I'm just wondering if there is any advantage to keeping it 2" up to past the selector then increasing the pipe to 2.5" to ease gas flow?
Edited by Carlzilla on 26th Feb, 2012. On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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 478 Posts Member #: 9269 Senior Member Rotherham |
26th Feb, 2012 at 09:31:42pm
Mines 57mm which is what saab down pipe is and I'm going to carry it on all the way through. I don't think its worth risking not doing it if your spending a lot of money and wanting big power. Edited by dig-mini on 26th Feb, 2012. Craig
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3673 Posts Member #: 9300 Post Whore Quarry Bonk |
26th Feb, 2012 at 10:06:42pm
Well, I'm gonna be running a T3, but I've had Phil work his black magic on my exhaust elbow and manifolds, Just trying to make the setup as 'stress free' as possible. On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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 2742 Posts Member #: 637 Post Whore Hertfordshire |
26th Feb, 2012 at 10:10:26pm
im going for 2.5" all the way from the turbo (gt17) on my build. i might have to flatten it a bit to get it past the subby and pot joint. My build thread..
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3594 Posts Member #: 655 Post Whore Northern Ireland |
26th Feb, 2012 at 11:43:17pm
On 26th Feb, 2012 Carlzilla said:
I'm just wondering if there is any advantage to keeping it 2" up to past the selector then increasing the pipe to 2.5" to ease gas flow? Not that it matters for me as I'm having internal, but what about after the downpipe? Absolutely none whatsoever. If you are changing size, the larger size should always be close to the turbo. The gasses cool as they get further away, so take up less space anyway, so you could downsize near the back rather than go larger. 9.85 @ 145mph
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 5329 Posts Member #: 140 Proven 200+bhp & Avon Park 05,06,07 Class D 3rd place |
27th Feb, 2012 at 01:05:38pm
nice post stevie, I think people go far to big some times! all it does is make lag and noise! Best 1/4 mile 13.2 seconds @116 mph
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3594 Posts Member #: 655 Post Whore Northern Ireland |
27th Feb, 2012 at 09:15:06pm
On 27th Feb, 2012 Miniwilliams said:
nice post stevie, I think people go far to big some times! all it does is make lag and noise! Going big on a turbo car will have few downsides other than noise and packaging. So I'm not saying not to do it. But even though theory does suggest a certain size is smaller than ideal, it really doesnt have a huge impact on performance even making power well beyond that ideal. But going from turbo-small-large is totally pointless. If anything it needs turbo-large-small, or turbo-large-large ( noise and space permitting ) Bigger downpipe etc will assist spool, not hurt it, as you want as much of a pressure drop across the turbine as possible. 9.85 @ 145mph
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478 Posts Member #: 9269 Senior Member Rotherham |
27th Feb, 2012 at 11:39:29pm
Thanks for that Stevieturbo this helps a lot with my build and and clears a though is-hoses on my build which I've been pondering on Craig
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2233 Posts Member #: 9037 Post Whore Doncaster, yorkshire |
28th Feb, 2012 at 05:57:54am
I am in two minds whether to go 2.5" downpipe to 2.25" at the pot joint, is there a noticable difference to when it spools? 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 |
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3594 Posts Member #: 655 Post Whore Northern Ireland |
28th Feb, 2012 at 11:36:35am
On 28th Feb, 2012 bennyy said:
I am in two minds whether to go 2.5" downpipe to 2.25" at the pot joint, is there a noticable difference to when it spools? I'd say as 2.25" will already be more than adequate, any difference would be very small. But it cant do any harm if you're able to package it. Ive never done a stepped size, always just one size the entire way through. Although in saying that....one 2.5 Subaru with a GT30 and 1.8 bar boost did have a 3" DP and 2.5" system and we swapped this for 3" the entire way. Didnt make any noticable difference. 9.85 @ 145mph
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