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EXUP Valve, keep or remove?

6 Posts | Latest reply on 31/08/2010 17:41:40 by yzf.rider | Go to original / last post

6 posts found over 1 pages. Displaying over 1 page.

Jimclark

In: Cheshunt
Posts: 4

I have an old Thunderace, is it worth dumping the exup valve and will it make any difference to the performance, i accept the bike will need to be retuned if it goes.

Message posted by Jimclark on 12 August 2010 at 15:12

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Jimclark @ 12/08/2010 15:12:42

ghosthunter

In: Hinckley
Posts: 1659

I'd keep it, helps with midrange. Helps if you have a fruity can too, you can keep the noise down through villages etc. Interestingly enough performance car makers are fitting these to cars now.

Message posted by ghosthunter on 12 August 2010 at 15:25

ghosthunter @ 12/08/2010 15:25:45

ghosthunter

In: Hinckley
Posts: 1659

I'd keep it, helps with midrange. Helps if you have a fruity can too, you can keep the noise down through villages etc. Interestingly enough performance car makers are fitting these to cars now.

Message posted by ghosthunter on 12 August 2010 at 15:25

ghosthunter @ 12/08/2010 15:25:54

Deleted Member

In: NA
Posts: 0

Definitely keep it!!! I had a Thunderace myself (there's a pic of it in my albums) had a Quill or Art can on it ....... loved it and it really helps, the only time I had an issue was when it got stuck open and the performance did suffer.

The rev counter misbehaves too if its sticking or is taken off.

Just get it tuned at a Dynojet place if you were going to spend money on it anyway

Message posted by Deleted Member on 12 August 2010 at 20:02

Deleted Member @ 12/08/2010 20:02:17

suzook12

In: Kings Lynn
Posts: 23

Depends what ynt to do with it really.... Losing the valve only has any benefits if ya junk the exhaust for a large bore race system then you'll need a dynajet stage 3 kit to make it work plus dyno time. If you just looking to make it a little livelier then sports can, free flowing filter and keep the valve would be best bet Steve

Message posted by suzook12 on 25 August 2010 at 22:13

suzook12 @ 25/08/2010 22:13:04

yzf.rider

In: chesterfield
Posts: 11

you can now get aftermarket headers that actually take the original exup on ebay £179 or is it that ur valve has seized and you need a new valve.

Message posted by yzf.rider on 31 August 2010 at 17:41

yzf.rider @ 31/08/2010 17:41:40

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