headers and uppipe.
18 January 2010, 06:45 PM
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headers and uppipe.
i have some oe ported headers and uppipe,was thinking of fitting them to my uk 99 turbo myself,anyone tried this? ive heard its supposed to be a t**t of a job? any views would be great.i am pretty handy with spanners but dont want to take on the job if it is a nightmare without proper ramps etc.
18 January 2010, 07:27 PM
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Easy one dude took me an hour in the snow last week first time changing em just use plenty of penetrating oil - if you wanna be doubly sure soak the studs the say before hth
18 January 2010, 07:37 PM
#5
the up-pipe is harder to do as you have to try and manoeuver(sp) through a small gap. a lot of people lift the engine slightly on the turbo side. manifold is quite easy, just depending how easily you can work under the engine bay.
steve
steve
18 January 2010, 07:49 PM
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,im assuming the uppipe does come off the car without having to lift engine as i have no lifting gear,so it must go back on without lifting?the turbo wont have to be removed will it? is it a matter of literally changing the whole lot over without having to dismantle the car?
18 January 2010, 08:01 PM
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did full exhust with 1 trolley jack and im siht with tools make sure u get uppipe to headers tight b4 turbo and block, mine liked to blow there
dont forget the heatwrap
dont forget the heatwrap
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18 January 2010, 08:07 PM
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not using heat wrap,just the oe heat shields.would the uppipe be fitted before the manifolds yeah? why would any of it leak if its all done up tight and with gasket sealant?should all fit spot on shouldnt it as its all original equiptment (just ported) im not using aftermarket headers or uppipe.
18 January 2010, 08:50 PM
#9
Seems a shame not to seize this perfect opportunity (whilst they're off!) to fit some proper DEI heatwrap - better with 'em wrapped than not!Whilst you're in there, might be a good idea to consider wrapping your plugs too - give 'em each a nice little snood LOL
Last edited by joz8968; 18 January 2010 at 09:09 PM.
18 January 2010, 09:06 PM
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u just keep popping up joz! im only looking to raise power from 300 to 330 ish,cant really see the benefits of the heat wrap to be honest.are the oe heat shields not good enough? thats a good point joz,dont spose u know when my plugs are due do u?
18 January 2010, 09:18 PM
#11
Wrapping the headers, up-pipe (and downpipe if you can be bothered) obviously keeps the heat in more, and thus aids gas speed, therefore aids turbo spool by about 150-200rpm, I'm led to believe. I'd say that was worth it, wouldn't you? 
It's not all about max power, but moreso helping in increasing torque/spool too - it's this that matters on the road...
It's not all about max power, but moreso helping in increasing torque/spool too - it's this that matters on the road...
Last edited by joz8968; 18 January 2010 at 09:19 PM.
18 January 2010, 09:25 PM
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Wrapping the headers, up-pipe (and downpipe if you can be bothered) obviously keeps the heat in more, and thus aids gas speed, therefore aids turbo spool by about 150-200rpm, I'm led to believe. I'd say that was worth it, wouldn't you?
It's not all about max power, but moreso helping in increasing torque/spool too - it's this that matters on the road...
It's not all about max power, but moreso helping in increasing torque/spool too - it's this that matters on the road...
do u know how much the dei heat wrap is? enough to do headers and uppipe?where would u buy it?
18 January 2010, 09:36 PM
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Previous point remains. You'll get better heat retention through them with wrap than by preserving the OE shields. A wrapped up-pipe is a lot easier to fit than a shielded one too. On the basis that it's better to do the job once than twice, wrapping is good.
[quite]would the uppipe be fitted before the manifolds yeah?[/quote]
Yeah, unlikely to go on (and if it does, will be a much bigger pest to fit) the other way round.
Because the mating faces of your cheaply mass-produced and hot-running components are often not perfectly flat, and because the flexi-jointed up-pipe and link pipes, tend to be a bit "small" and as a result will tend to twist things out of square if you tighten the bolts in the wrong order.
You are better off not using gasket sealant at all. It shouldn't be necessary with new genuine Subaru gaskets, and if you do, there's a risk of any excess extruded into the exhaust system being deposited into the turbine, which doesn't exactly do it much good.
[quite]would the uppipe be fitted before the manifolds yeah?[/quote]
Yeah, unlikely to go on (and if it does, will be a much bigger pest to fit) the other way round.
why would any of it leak if its all done up tight and with gasket sealant?
You are better off not using gasket sealant at all. It shouldn't be necessary with new genuine Subaru gaskets, and if you do, there's a risk of any excess extruded into the exhaust system being deposited into the turbine, which doesn't exactly do it much good.
18 January 2010, 09:37 PM
#15
One roll of the best DEI stuff is £65.80.
If you pay a specialsist to apply it at a labour rate of about c£50+/h then allow around 1.5hrs to do headers/uppipe/downpipe, at around £75-90...
ALL prices INC. VAT
If you pay a specialsist to apply it at a labour rate of about c£50+/h then allow around 1.5hrs to do headers/uppipe/downpipe, at around £75-90...
ALL prices INC. VAT
Last edited by joz8968; 18 January 2010 at 09:41 PM.
18 January 2010, 09:44 PM
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Previous point remains. You'll get better heat retention through them with wrap than by preserving the OE shields. A wrapped up-pipe is a lot easier to fit than a shielded one too. On the basis that it's better to do the job once than twice, wrapping is good.
[quite]would the uppipe be fitted before the manifolds yeah?
[quite]would the uppipe be fitted before the manifolds yeah?
Because the mating faces of your cheaply mass-produced and hot-running components are often not perfectly flat, and because the flexi-jointed up-pipe and link pipes, tend to be a bit "small" and as a result will tend to twist things out of square if you tighten the bolts in the wrong order.
You are better off not using gasket sealant at all. It shouldn't be necessary with new genuine Subaru gaskets, and if you do, there's a risk of any excess extruded into the exhaust system being deposited into the turbine, which doesn't exactly do it much good.[/QUOTE]
the up pipe isnt flexi is it?,thought that was a solid pipe?
18 January 2010, 10:02 PM
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nice one mate,thankyou.just had a look at the headers and seriously considering heat wrapping now as the heat shield are massive and awkward.,would u recommend dei heat wrap and all new subaru gaskets? cant the old gaskets be reused?obviously i dont want to just waste money on gaskets if i dont need them,but im all 4 doing it once and properly!how much in length roughly would be required to heat wrap the headers and up pipe?
18 January 2010, 10:30 PM
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would u recommend dei heat wrap and all new subaru gaskets?
cant the old gaskets be reused?
obviously i dont want to just waste money on gaskets if i dont need them,but im all 4 doing it once and properly!how much in length roughly would be required to heat wrap the headers and up pipe?
18 January 2010, 10:33 PM
#23
If you're gonna consider the heatwrap, then why can't you stretch (pardon the pun) to the the headers and up-pipe gaskets, too?! Is it really worth NOT getting them only to find, after fitting it all back together, that your old ones are blowing?!
I think you really would be going to yourself, if they did...
Do it right; do it ONCE, is the maxim.
I think you really would be going
to yourself, if they did... Do it right; do it ONCE, is the maxim.
Last edited by joz8968; 18 January 2010 at 10:44 PM.
18 January 2010, 10:42 PM
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If you do it, you'll find what you're left with is a hell of a lot smaller and easier to manage and fit. If you're wrapping you can grind off the shield mounting lugs from the cast parts, as well as that stamped "spacer" below the flexi-joint in the picture Joz posted.
Definite yes to the gaskets. DEI wrap is good, but they're not the only gig in town.
You can try it, but, especially if you're using gaskets currently on your car with a different set of manifolds, it's much more likely they'd leak. It's worth fitting genuine Subaru gaskets too - I've seen some third party parts that were next to useless, too thin (thereby exacerbating fit problems) and would have next to no leak prevention properties.
At a very rough guess, I think I bought 20m of 2 inch tape last set I did, and had about a third, or quarter of that left over.
Definite yes to the gaskets. DEI wrap is good, but they're not the only gig in town.
You can try it, but, especially if you're using gaskets currently on your car with a different set of manifolds, it's much more likely they'd leak. It's worth fitting genuine Subaru gaskets too - I've seen some third party parts that were next to useless, too thin (thereby exacerbating fit problems) and would have next to no leak prevention properties.
At a very rough guess, I think I bought 20m of 2 inch tape last set I did, and had about a third, or quarter of that left over.
well if i go for dei that should only set me back around £3250 then thanks for all your info splitpin,dont want to big u up 2 much but u r the master!
what other wrap is good?
18 January 2010, 10:54 PM
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Cheshire Ribbon | Manufacturers of Industrial Textiles for Insulation, Thermal Protection and High Performance Applications | Glass, Basalt, Silica and Ceramic Textiles - Bespoke Fabrication North West
I'm sure they sell exhaust tape via eBay but don't remember their seller name, so give them a buzz and ask. I've used theirs myself, it's good.