Cyclone Secondaries not opening...

[TurboBlue]

Ok, after another horribly dissapointing night at the track, and a best time of freaking 14.4, i've pretty much come to the conclusion that my secondary runners arent opening. I have vacuum going to the modulator from the intake manifold, but still nothing, my next attempt was going to be zip-tying it open to see if that works. Does anyone have a vacuum diagram or anything that can help me solve this problem?

 

[MattnGsx]

I here of nothing but problems w/ a cyclone intake. Though heres a link with some ideas that might help you out.

http://www.dsmtuners.com/forums/showthread.php?t=105746&highlight=groomz+cyclone

-Matt

 

[TurboBlue]

hopefully some time in a few weeks im putting on a usdm intake manifold again, i baught the car wit the cyclone and it just sucks. ANother 91 AWD at the track last night was doing 13.50's with a 3" DP back and MBC. I have that plus ported 14b, head, 3 angle valve job, AFC2, buschar UICP, compressor outlet pipe, i figure something is wrong with my peice of shit...

 

[Liquid Illusion]

buy a magnus intake manifold, thats the solution.

 

[ken inn]

the default position(no vacuum) of the butterflies is wide open. vacuum closes the secondaries. they need very little vacuum to close them.

 

[ltho98]

That's why people dump the cyclone manifold like a girl with herpes.

The position of the butterflies when not in vacuum is open.. and they remain closed when vacuum is sensed. My quick fix.. just pull the vacuum line to the secondary butterfly actuator and cap it off.