Anyone out there know of a Tri-Y Headers for a Defender? - Defender Source
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  #1  
Old October 28th, 2010, 02:41 PM
DefenderPilot
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George
1997 D90 SW
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Anyone out there know of a Tri-Y Headers for a Defender?

Hello to the members. Im a new Defender owner and would have been searching for upgrades and would love to have a Try-Y header which will be great for this type of engine. Any members using one or know of any good ones out there? Thanks regards George
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  #2  
Old October 29th, 2010, 09:24 PM
jack SF
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jack baran
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I'm pretty sure there is no headers for the defender.

Has any tried to install the headers/manifolds of a range rover p38 onto a d90?
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  #3  
Old October 30th, 2010, 12:07 AM
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Bradlee Duncan
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I tried the Range Rover headers that are listed on summitracing and decided that they'd be too much work to make them fit. I ended up going with the block hugger headers from Aluminum V8: http://www.aluminumv8.com/catalogpages/headers.htm

They were a much closer fit than the Hedman's from Summit but they still needed a bit of tweaking to get around the passenger side engine mount properly. The driver's side one also causes the need for some pipework to make sure you have enough room for the oil pan drain plug to clear (need to route the pipe towards the frame rail a bit and then back so it's not too close to the drain plug. All-in-all, I'd do the block huggers again though. I had some slight trouble getting them to seal to the block as well, but finally got it. Now the exhaust sounds great! After the headers, I used two universal 2.5" high flow cats that came back into a y-pipe similar to stock, then a 3" pipe and muffler out the back. Gives a nice deep sound and free-er feel to the engine revs.
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  #4  
Old October 30th, 2010, 06:30 PM
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George
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Darn it all! Im surprised no one makes a bolt on Tri-Y. The low and mid range gain would much better.

There were no pictures for the block hugers. Do they have o2 bungs?

These were the only ones I know of but they are 4-1 headers.

http://www.toddcosuspensions.com/larode90110h.html
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  #5  
Old October 30th, 2010, 07:05 PM
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Bradlee Duncan
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Interesting.. those look almost exactly like the Hedman's from Summit. You should call and ask them if they bolt right up or if they need modification for a LHD d-90.

The block huggers do not have bungs in them.
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  #6  
Old October 31st, 2010, 10:56 AM
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Bill Adams
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Do a web search for Buick 300 headers and you'll find many options
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  #7  
Old October 31st, 2010, 09:45 PM
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George
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Quote:
Originally Posted by cbass View Post
Interesting.. those look almost exactly like the Hedman's from Summit. You should call and ask them if they bolt right up or if they need modification for a LHD d-90.

The block huggers do not have bungs in them.
These aren't the headmen. From what I read, they are thicker and of a much better quality plus they have O2 fittings and are made to bolt to NAS Defenders. The problem is that they are 4-1 which is not good for and engine that redlines at 5500RPM. Good Tri-y type headers will make a nice improvement up to 5500 RPM

------ Follow up post added October 31st, 2010 06:48 PM ------

Quote:
Originally Posted by o2batsea View Post
Do a web search for Buick 300 headers and you'll find many options

I looked just now and they all seemed to be made to fit MG cars? I need it to fit a Defender and have an o2 sensor bung. I guess I can put the bung if need be but fitting correctly is the most important thing.
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  #8  
Old November 1st, 2010, 08:33 PM
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Dave McHenry
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here is a set from the UK


http://cgi.ebay.co.uk/ROVER-V8-JANSP...item3a5e5ede19
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  #9  
Old November 2nd, 2010, 02:50 AM
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George
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Originally Posted by jetmech View Post
Wow thanks Janspeed. Ill have to find them and email them.
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  #10  
Old November 6th, 2010, 04:35 AM
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George
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Thanks for everyone help. I still would like to find other Tri-y headers? The Janspeed needs a cat pipe kit and they are in the UK so its expressive to ship. Anyothers??
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  #11  
Old November 8th, 2010, 11:54 AM
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Bill Adams
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Quote:
Originally Posted by DefenderPilot View Post
Thanks for everyone help. I still would like to find other Tri-y headers? The Janspeed needs a cat pipe kit and they are in the UK so its expressive to ship. Anyothers??
I read this as "I want to add performance parts to my engine but don't want to spend the money it takes to do so"
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  #12  
Old November 8th, 2010, 12:32 PM
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George
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Quote:
Originally Posted by o2batsea View Post
I read this as "I want to add performance parts to my engine but don't want to spend the money it takes to do so"
No quite, its more like " I wonder what else is out there. Are there better headers that someone makes in the US or any others out there to chose from? These Japspeeds also needs there cat pipe kit and would that pass US smog checks?" hehe
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