Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: Initial-D on May 16, 2004, 07:51:46 PM

Title: What could this mean??
Post by: Initial-D on May 16, 2004, 07:51:46 PM
Had the bonnet up today and was poking around, saw one of my pipes has started to collapse. Although I haven\'t noticed anything wrong with the car would this cause any effects on the engine?

What\'s this piece do, release pressure?
Pic below.

Cheers


Ben
Title: What could this mean??
Post by: Fish on May 16, 2004, 07:56:07 PM
This is the pre-control valve. Replace the pipe so that you will get proper transfer of boost.

Easy job to do.

Fish
Title: What could this mean??
Post by: Initial-D on May 16, 2004, 07:59:50 PM
Good! Any easy job - although I\'m sure it\'ll be painful getting in there to put the new one in!!

Cheers Fish!


Ben
Title: What could this mean??
Post by: antnicuk on May 16, 2004, 10:07:08 PM
Oh,  i thought it was a vacume pipe to the dump valve, but its been a while since i have seen a standard engine bay.
Title: What could this mean??
Post by: Fish on May 17, 2004, 06:48:13 AM
You\'re correct in thinking it\'s a vacume pipe, coz it is! ;)

But the dump valve is next to the air filter box, this is the one next to the turbo pack looking at the picture.

Fish
Title: What could this mean??
Post by: Initial-D on May 17, 2004, 09:20:09 PM
Yep just gotta get me some replacement hoses, any UK supplier web links out there for decent prices?

I\'ve got a HKS dump valve too, which is located a little further to the right of the pic - just incase you wondered!:D

Cheers


Ben
Title: What could this mean??
Post by: Fish on May 18, 2004, 07:32:47 AM
You will only need about 25cm of hose, which I think even Halfords could supply.

Fish
Title: What could this mean??
Post by: jonrx7uk on May 18, 2004, 04:54:00 PM
Isn\'t that the pipe that controls the CRV (Charge Relief Valve).  If so, replace it staright away.  The CRV controls what happens to the 2nd turbo\'s boost B4 and after transition...
Title: What could this mean??
Post by: cruiser on May 19, 2004, 11:50:30 PM
This could be potentially dangerous.... boost spike at transition :eek: