Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: Fats on March 03, 2006, 10:33:58 PM

Title: fitting Boost controller
Post by: Fats on March 03, 2006, 10:33:58 PM
Just in the middle of fitting my greddy profec A boost controller, just wondering which actuator is for the wastegate, i would have said the one with the adjustable actuator, just want to make sure i fit it correctley with out causing to much damage!

Cheers
Title: fitting Boost controller
Post by: Herblenny on March 06, 2006, 06:05:05 AM
Are you running single or twin. If twins, are you running them sequential or non-seq?

In stock twins, its the top actuator is the wastegate control.
If I recall you would have to "T" both wastegate and precontrol together. Follow your Greddy/Trust manual.

Also don\'t use cheap silicone tubing. If your tubing melts, you will not be able to control boost and you will over boost. Also, make your lines as short as possible.
Title: fitting Boost controller
Post by: Fats on March 06, 2006, 03:14:05 PM
Alright mate, im running standard seq turbos, i\'ve had a look at the greddy site it dos\'nt show diagrams for the twin turbo setup, have you got any info? cheers
Andy
Title: fitting Boost controller
Post by: nikp on March 06, 2006, 04:21:42 PM
Yeah, cos it\'s sequential, you need to make sure you\'re controlling the boost on both the primary and secondary turbos. For the primary turbo, most of the time, the boost is actually regulated by the pre-control actuator, rather than the wastegate. Therefore, as Herblenny says, you need to T-piece those together, and then to the boost controller.
Title: fitting Boost controller
Post by: Fats on March 07, 2006, 02:07:58 PM
Cheers, i\'ll give it a go