Couplers question
Thread Starter
Registered User
Joined: Jun 2010
Posts: 271
Likes: 0
If that were the case why did they use a symbol to represent a measurement? I just don't want to end up buying the wrong couplers and have to return them and wait even longer for the right ones to arrive. :/ I was hoping someone with a Greddy kit can chime in.
I got these numbers from the Greddy's Instruction Manual, found on their support site.
I got these numbers from the Greddy's Instruction Manual, found on their support site.
Joined: Jun 2010
Posts: 1,378
Likes: 1
From: out in the sticks, Tennessee
Originally Posted by AusS2000,Jan 18 2011, 08:40 PM
With the reducers I assumer it means it will fit around a 50mm pipe and one end and around a 60mm pipe at the other.
Moderator
Joined: Oct 2000
Posts: 30,809
Likes: 15
From: Sydney
Originally Posted by t0m,Jan 19 2011, 04:55 PM
If that were the case why did they use a symbol to represent a measurement?
Thread Starter
Registered User
Joined: Jun 2010
Posts: 271
Likes: 0
Originally Posted by realblag,Jan 19 2011, 01:25 AM
This is correct. I replaced all mine with 4 layer silicone ones. The numbers with the symbol are inner diameter in mm and they are reducers. The other ones, with the "mm" after are inner diameter and the length of that particular, straight coupler.
Joined: Mar 2005
Posts: 5,946
Likes: 7
From: honolulu, hawaii
Originally Posted by t0m,Jan 18 2011, 08:55 PM
If that were the case why did they use a symbol to represent a measurement? I just don't want to end up buying the wrong couplers and have to return them and wait even longer for the right ones to arrive. :/ I was hoping someone with a Greddy kit can chime in.
I got these numbers from the Greddy's Instruction Manual, found on their support site.
I got these numbers from the Greddy's Instruction Manual, found on their support site.
Thread Starter
Registered User
Joined: Jun 2010
Posts: 271
Likes: 0
Originally Posted by realblag,Jan 19 2011, 10:01 AM
Yes 70mm is the length. Namebrand does not matter on this one so I just hunted through E-bay until I found everything I needed.Make sure you do the conversions and get the right ones. For example, a 2.5in. diameter hose will not work on a 60mm pipe. The same goes for T-bolt clamps if you replace the crappy clamps in the Greddy kit.
The conversion for 60mm is 2.362in. You're saying that a 2.5in will not work as a replacement for the 60mm coupler? And 50mm is 1.968in and I can't use a 2in?
Would it be easier if you shared with me what couplers you bought? lol
Moderator
Joined: Oct 2000
Posts: 30,809
Likes: 15
From: Sydney
Here's the thing about conversions: error factor and stretch/compression.
2" - 50.8mm. That means a 2" coupler is 0.8mm too big for a 50mm pipe. But we're talking about silicon here. It'll fit and a clamp will clamp it fine.
2.5" is 63.5mm. It's 3.5mm larger than 60mm and not a good idea to try and clamp it.
My suggestion is work out what units your pipes are measured in (and I'd actually measure them, not take manufacturers advice) and order parts in those units. I suspect Greddy being a Japanese company your pipes were manufactured in mm and just dumbed down to inches for the US market.
2" - 50.8mm. That means a 2" coupler is 0.8mm too big for a 50mm pipe. But we're talking about silicon here. It'll fit and a clamp will clamp it fine.
2.5" is 63.5mm. It's 3.5mm larger than 60mm and not a good idea to try and clamp it.
My suggestion is work out what units your pipes are measured in (and I'd actually measure them, not take manufacturers advice) and order parts in those units. I suspect Greddy being a Japanese company your pipes were manufactured in mm and just dumbed down to inches for the US market.