Thread: HKS BOV query ??
04-08-2009, 02:32 PM #1
HKS BOV query ??
I've fitted an HKS Bov. To test it I took a T off the vacuum pipe between the inlet manifold and the sensor, fired up the engine, and the BOV dumped air perfectly. I then replaced the T with a 4 take off vacuum manifold (similar to R3_Killa) so that I could have a boost gauge as well. The engine fired up alright, but the blow off valve didn't dump air and the boost gauge barely read into + under throttle, although on tickover it was running good vacuum. I disconected the vacuum manifold and the dump valve worked perfectly again.
The vacuum manifold has a 3/4" bore through it and is about 4" long. Is it leaking, or is there too much volume for the engine vacuum to empty it and then pull the diaphram across in the dump valve.
Any ideas or thoughts
04-08-2009, 02:40 PM #2
- Join Date
- Aug 2008
- Southern Florida
The engine doesn't start making boost until 5500 or so RPM's.
04-08-2009, 02:45 PM #3
04-08-2009, 03:12 PM #4
04-08-2009, 03:52 PM #5
04-08-2009, 04:02 PM #6
04-08-2009, 06:24 PM #7
04-09-2009, 06:05 PM #8
If you only have trouble when using that multi vacuum port adaptor then I would say the adaptor is the problem.
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