Missing Boost

pokeyl · 08-23-2013, 11:42 AM

New valve is on, BUT, still missing boost. As soon as the traction fluid is warm the boost goes away.

If I WOT as soon as the oil temp is 160 I get 3 PSI at 3K

15 minutes later I get ZERO boost at 3K

outside temp is 75F

I looks like I may need a new supercharger. I have found other rotrex failures over at the BMW sight.

A lot of talk about overspeeding the SC causing the problem, and the user I bought mine from had the smallest pulley GMT makes on it with the stage 1 intake. He may have fried the unit and then sold it to me. As I did my install in the winter, the fluid was cool enough to keep the boost up.

I am working with Sam and Mike to come up with a solution.

08-23-2013, 11:42 AM	#26 (permalink)
pokeyl Track Member Join Date: Nov 2010 Location: DFS Posts: 900 Drives: ??? Rep Power: 55	New valve is on, BUT, still missing boost. As soon as the traction fluid is warm the boost goes away. If I WOT as soon as the oil temp is 160 I get 3 PSI at 3K 15 minutes later I get ZERO boost at 3K outside temp is 75F I looks like I may need a new supercharger. I have found other rotrex failures over at the BMW sight. A lot of talk about overspeeding the SC causing the problem, and the user I bought mine from had the smallest pulley GMT makes on it with the stage 1 intake. He may have fried the unit and then sold it to me. As I did my install in the winter, the fluid was cool enough to keep the boost up. I am working with Sam and Mike to come up with a solution. __________________ It's not my fault I'm old, I was born a very long time ago!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
4.08 and boost	whoLEEoh	Engine & Drivetrain	16	12-07-2015 08:08 AM
Boost vs. RPM	DIGItonium	Forced Induction	39	06-17-2013 09:23 AM
Am i Missing Something?	Whitemtl370	Nissan 370Z General Discussions	9	01-18-2012 02:13 PM
Need Mic Boost?	Osiris	Audio & Video	6	07-14-2010 03:43 PM
Something is missing	SophiaZ	Exterior & Interior	11	01-20-2010 09:08 PM