uprated head gaskets??
hi
Is it worth going for uprated gaskets such as Cosworth or Cometic or will the oe subaru gaskets suffice?
Also what thickness would I need on a v5 phase 2 classic?
Currently running 315/305 on a TD04H with simtek and supporting mods
Cheers
Matt
Is it worth going for uprated gaskets such as Cosworth or Cometic or will the oe subaru gaskets suffice?
Also what thickness would I need on a v5 phase 2 classic?
Currently running 315/305 on a TD04H with simtek and supporting mods
Cheers
Matt
Last edited by mattpat; Mar 23, 2010 at 10:44 PM.
Defo seize the opp to get MLS ones in there, such as Cometic or Cosworth, as you say. I think the STi 5/6 ones are MLS too? Composite ones get a good clamp-on lol but are that much more susceptible to failure. I think the v5/6 HG is a thin'un at 0.6mm, but don't quote me!! The specialsits and merlin24 will know for sure..
How many miles has the engine done? 'Cause if around 50-60k or less then you prob can get away with just HG replacement - £850+VAT at API. If a high miler, then Dave at API said it's worthwhile getting a bottom end rebuild done at the same time, as, in his experience, the bottom end can - and usually does! - fail soon after... Prob what you don't want to hear.
How many miles has the engine done? 'Cause if around 50-60k or less then you prob can get away with just HG replacement - £850+VAT at API. If a high miler, then Dave at API said it's worthwhile getting a bottom end rebuild done at the same time, as, in his experience, the bottom end can - and usually does! - fail soon after... Prob what you don't want to hear.
Last edited by joz8968; Dec 28, 2009 at 07:42 PM.
Vers 5 run a MLS gasket ( thin steel ) from the factory and are normally more than capable of handling your 315/305 tbh.
Make sure the block and head faces are checked for warp otherwise you could be doing the job twice.
Mick
Make sure the block and head faces are checked for warp otherwise you could be doing the job twice.
Mick
Defo seize the opp to get MLS ones in there, such as Cometic or Cosworth, as you say. I think the STi 5/6 ones are MLS too? Composite ones get a good clamp-on lol but are that much more susceptible to failure. I think the v5/6 HG is 0.6mm, but don't quote me!! merlin24 will know for sure..
How many miles has the engine done? 'Cause if around 50-60k or less then you prob can get away with just HG replacement - £850+VAT at API... If a high miler, then Dave at API said it's worthwhile getting a bottom end rebuild done at the same time, as, in his experience, the bottom end can, and usually does, fail soon after... Prob what you don't want to hear.
How many miles has the engine done? 'Cause if around 50-60k or less then you prob can get away with just HG replacement - £850+VAT at API... If a high miler, then Dave at API said it's worthwhile getting a bottom end rebuild done at the same time, as, in his experience, the bottom end can, and usually does, fail soon after... Prob what you don't want to hear.

cheers
matt
Last edited by mattpat; Mar 23, 2010 at 10:42 PM.
btw, it'll be a TD05H. The TD04 is either a TD04 or TD04L and you'd be lucky to see 290 on it, letalone 315! That said, if it IS a TD series turbo, then someome must have fitted it, as the OEM one for your model should be a VF28 or VF29 - assuming, that is, it's a JDM car?
But, of course, if you have a UK car, then yes, it will have a TD04L front entry fitted as std.
But, of course, if you have a UK car, then yes, it will have a TD04L front entry fitted as std.
Last edited by joz8968; Dec 28, 2009 at 08:00 PM.
Yeah, if you're able too, mothball her... then save for a fully forge rebuild during that time. I'd defo do that, seeing as you really need to do the bottom end in addition to the HGs - economically viable, if you inetnd to keep her for a long time and enjoy the car a lot!
lol
2.1 stroker option is considered a worthwhile upgrade for the money!
lol2.1 stroker option is considered a worthwhile upgrade for the money!
Last edited by joz8968; Dec 28, 2009 at 08:04 PM.
Joined: Apr 2005
Posts: 11,778
Likes: 4
From: Newcastle. 330bhp-289lb/ft @ 1bar boost - 12.4s @ 105mph
Trending Topics
LOL that explains EVERYTHING. H for Hybrid, and yes, they can do 320 or so can't they?, with the TD04L's mega quick spool up! A fantastic roadcar turbo, I expect?
Last edited by joz8968; Dec 28, 2009 at 08:54 PM.
Thread
Thread Starter
Forum
Replies
Last Post





