I have sourced a 20v 4age header, can anyone tell me if I have to modify my exhaust downpipe to suit this?
I know I have to match the 16v holes on the header up top that's not a problem.
Any ideas?
Cheers
20v Header
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Re: 20v Header
I'm pretty sure the flange between manifold (we're not in America ) and downpipe is different on a 20v. I'd be surprised if it was in exactly the same place as well so there may be a little bit of cut and shut required.
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Re: 20v Header
Balls! That's a shame as it's a good price!
I do have spare exhaust at home, so I suppose I could fit that while my Janspeed is altered
I do have spare exhaust at home, so I suppose I could fit that while my Janspeed is altered
Re: 20v Header
Have a look at sv3power.com they have a 20v manifold and down pipe available on exchange, modified to fit a 16v engine
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Re: 20v Header
I've seen that site before but they are in the USA and it'd cost a hell of a lot more to get it done by them.
I can get my downpipe extended at work.
Thanks for the link anyway.
I can get my downpipe extended at work.
Thanks for the link anyway.
Re: 20v Header
I have made this mod on my one (I have a 20V header with a 16V exhaust).
If you bough the downpipe flange of the 20V its an easy fix .
What I have done was to cut the downpipe flange of the 20V and add about a 2 inch of pipe ....
Then cut the flange of the 16V and just joint the pipes together.
This happens on the merge from 4 to 2 pipes....
I have a picture somewhere
So in the picture you have the original 20V flange, a bit of pipe from the old 20v exhaust and the full 16v exhaust .....
Make sure you look and clean the inside ...
If you bough the downpipe flange of the 20V its an easy fix .
What I have done was to cut the downpipe flange of the 20V and add about a 2 inch of pipe ....
Then cut the flange of the 16V and just joint the pipes together.
This happens on the merge from 4 to 2 pipes....
I have a picture somewhere
So in the picture you have the original 20V flange, a bit of pipe from the old 20v exhaust and the full 16v exhaust .....
Make sure you look and clean the inside ...
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Re: 20v Header
Any noticeable difference?
Re: 20v Header
I also changed the engine to a blacktop 20v ....
so yes, there is a lot of difference but I suspect its not only the exhaust
so yes, there is a lot of difference but I suspect its not only the exhaust
- Lauren
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Re: 20v Header
Is there really anything to gain here though, from fitting that manifold considering you'd need to do a fair bit of work?
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Re: 20v Header
Chaps at work would do it for a tenner, but I still have suspension issues so prob won't do this now.
Re: 20v Header
I remember reading that kev.in tried this with his but found other problems, cant remember what exactly. Might be worth doing a search.
platmatt8 wrote:Lauren has got bigger balls than most men on this site
charged wrote:Mine's probably screaming 'stop raping me'
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Re: 20v Header
Thanks Alex.
I think its the extension at the bottom flange for the downpipe which is required to not only obviously bolt the mk1 exhaust onto, but also needed to clear the starter.
I've sent him a pm
I think its the extension at the bottom flange for the downpipe which is required to not only obviously bolt the mk1 exhaust onto, but also needed to clear the starter.
I've sent him a pm
Re: 20v Header
If i remember rightly he was using a later non-tvis engine and it posed problems. Cant remember all the detail though.
platmatt8 wrote:Lauren has got bigger balls than most men on this site
charged wrote:Mine's probably screaming 'stop raping me'
Re: 20v Header
no non tvis engine car went several years ago, 20v manifold I have doesn't fit due to clearance issues over starter motor and different flange (oooo flange!) it was on my to do list that is pending on another maybe I will list, beer token exchange and I could pass on my projectpk_090 wrote:If i remember rightly he was using a later non-tvis engine and it posed problems. Cant remember all the detail though.
Re: 20v Header
Perhaps the starter could be moved out of the way at the back, on a car with a C52 box
Peter
1989 MR2 Mk1 NA T-bar
1998 Ssangyong Korando GLS
2011 Honda Civic Type R
1989 MR2 Mk1 NA T-bar
1998 Ssangyong Korando GLS
2011 Honda Civic Type R
Re: 20v Header
was an option but too much work for as Lauren says not much gain other than maybe soundelbon50 wrote:Perhaps the starter could be moved out of the way at the back, on a car with a C52 box
Re: 20v Header
The stock 16v manifold is quite free flowing
Peter
1989 MR2 Mk1 NA T-bar
1998 Ssangyong Korando GLS
2011 Honda Civic Type R
1989 MR2 Mk1 NA T-bar
1998 Ssangyong Korando GLS
2011 Honda Civic Type R
Re: 20v Header
it is but it is also very heavy and can suffer from cracking (I am also aware that some aftermarket tube manifolds can fall to pieces infront of your eyes!elbon50 wrote:The stock 16v manifold is quite free flowing
Re: 20v Header
my one