MINI2

Jaw_F430 · Apr 22nd, 2008, 08:03 PM

What gaskets are people using for the cat when fitting their Janspeed manifold. I have the OEM ones at the moment but ideally I am after a thicker gasket that can be squashed slightly to give better seals as the flanges are not 100% square.

MINI-Morgan · Apr 22nd, 2008, 08:39 PM

Cat back is usually stock and the manifold to cat is usually a metallic mix gasket that fills the gaps

Well thats my experience on other brands.....

Jaw_F430 · Apr 22nd, 2008, 09:40 PM

Quote: Originally Posted by MINI-Morgan (original)

Cat back is usually stock and the manifold to cat is usually a metallic mix gasket that fills the gaps

Well thats my experience on other brands.....

Do you know where I can get one from?

Lucky Dave · Apr 22nd, 2008, 09:42 PM

I went to a local motorfactor and they found one that fitted spot on, I find the OEM one is not large enough and did not seal mine.

GARY GP · Apr 22nd, 2008, 10:03 PM

Are you going to port match your manifold + gasket with your stage 4 gtt head ?

Jaw_F430 · Apr 22nd, 2008, 10:11 PM

Quote: Originally Posted by 300GP (original)

Are you going to port match your manifold + gaskit with your head ?

Done that when I had the head and mani on the bench, just when I put the mani+cat on I can hear a slight hissing noise which sounds like there is a leak around the cat but on tick over if I put my hand over the cat I cannot feel a leak.

I am thinking it happens when under load and want to seal it better

GARY GP · Apr 22nd, 2008, 10:18 PM

jaw Fit two copper gaskets it gives a great seal Robertshaw racing does it, it works great...

MINI-Morgan · Apr 22nd, 2008, 11:01 PM

Try MINI Mania too

Jaw_F430 · Apr 23rd, 2008, 05:41 PM

Quote: Originally Posted by 300GP (original)

jaw Fit two copper gaskets it gives a great seal Robertshaw racing does it, it works great...

Do you know where I can get copper ones?

Apr 22nd, 2008, 08:03 PM	#1
Jaw_F430 MINI2 Senior Join Date: Jul 2007 Location: 7600rpm Local Time: 09:06 PM Posts: 735 Offline	Gaskets for Janspeed manifold to cat What gaskets are people using for the cat when fitting their Janspeed manifold. I have the OEM ones at the moment but ideally I am after a thicker gasket that can be squashed slightly to give better seals as the flanges are not 100% square.

Apr 22nd, 2008, 08:39 PM	#2 (permalink)
MINI-Morgan MINI Obsessed... My Classifieds Join Date: Nov 2003 Location: Southampton, Hants Local Time: 09:06 PM Posts: 4,679 Offline	Cat back is usually stock and the manifold to cat is usually a metallic mix gasket that fills the gaps Well thats my experience on other brands..... One Man, One Project......find out what happens next at MINIProject.co.uk For MINIs in the south it can only be South Coast New MINI Club

Apr 22nd, 2008, 09:42 PM	#4 (permalink)
Lucky Dave Thinking Minis My Classifieds Join Date: Jun 2005 Local Time: 09:06 PM Posts: 811 Offline	I went to a local motorfactor and they found one that fitted spot on, I find the OEM one is not large enough and did not seal mine. For All Your Mini's Needs 01905 620011

Apr 22nd, 2008, 11:01 PM	#8 (permalink)
MINI-Morgan MINI Obsessed... My Classifieds Join Date: Nov 2003 Location: Southampton, Hants Local Time: 09:06 PM Posts: 4,679 Offline	Try MINI Mania too One Man, One Project......find out what happens next at MINIProject.co.uk For MINIs in the south it can only be South Coast New MINI Club

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Apr 22nd, 2008, 09:40 PM	#3 (permalink)
Jaw_F430 MINI2 Senior Join Date: Jul 2007 Location: 7600rpm Local Time: 09:06 PM Posts: 735 Offline	Quote: Originally Posted by MINI-Morgan (original) Cat back is usually stock and the manifold to cat is usually a metallic mix gasket that fills the gaps Well thats my experience on other brands..... Do you know where I can get one from?

Apr 22nd, 2008, 10:03 PM	#5 (permalink)
GARY GP GP-1528 My Classifieds Join Date: Jun 2005 Local Time: 09:06 PM Posts: 800 Offline	Are you going to port match your manifold + gasket with your stage 4 gtt head ?

Apr 22nd, 2008, 10:11 PM	#6 (permalink)
Jaw_F430 MINI2 Senior Join Date: Jul 2007 Location: 7600rpm Local Time: 09:06 PM Posts: 735 Offline	Quote: Originally Posted by 300GP (original) Are you going to port match your manifold + gaskit with your head ? Done that when I had the head and mani on the bench, just when I put the mani+cat on I can hear a slight hissing noise which sounds like there is a leak around the cat but on tick over if I put my hand over the cat I cannot feel a leak. I am thinking it happens when under load and want to seal it better

Apr 22nd, 2008, 10:18 PM	#7 (permalink)
GARY GP GP-1528 My Classifieds Join Date: Jun 2005 Local Time: 09:06 PM Posts: 800 Offline	jaw Fit two copper gaskets it gives a great seal Robertshaw racing does it, it works great...

Apr 23rd, 2008, 05:41 PM	#9 (permalink)
Jaw_F430 MINI2 Senior Join Date: Jul 2007 Location: 7600rpm Local Time: 09:06 PM Posts: 735 Offline	Quote: Originally Posted by 300GP (original) jaw Fit two copper gaskets it gives a great seal Robertshaw racing does it, it works great... Do you know where I can get copper ones?

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