Subject	you're missing the point
Posted by	aliaZ on September 23, 2004 at 6:22 PM
	This message has been viewed 155 times.
In Reply To	Factory Wastegate actuators vs HKS ,and WG hardlines *PICS* posted by WhiteOutZ on September 23, 2004 at 05:47 PM
Message	factory wastegate spring pressure is around 6 psi. I think what Chip meant by saying you'll need HKS actuators beyond 18/19 psi, is that the 6 psi spring pressure will not be enough to hold the wastegates shut beyond 18/19 psi, no matter what your boost controller is set to. This is because the exhaust back pressure in the turbine housing will overpower the wastegate spring, causing the wastegate to blow open. If I recall correctly, HKS actuators are adjustable, so you adjust them to open later than the factory units, giving higher native boost pressures, and therefore higher max pressure. Seb recently ran into a similar problem on his Sport 700 dyno. He couldn't get any higher than 24 psi because the exhaust back pressure was overpowering the wastegate spring
Follow Ups	Factory Wastegate actuators vs HKS ,and WG hardlines *PICS* - WhiteOutZ 17:47:25 09/23/04 interesting. (n/m) - spotz 17:53:41 09/23/04 I like that idea. What size line is that? (n/m) - EricTTZ 18:01:23 09/23/04 nice job. (n/m) - Spee 18:17:14 09/23/04 you're missing the point - aliaZ 18:22:40 09/23/04 but nice job on the lines - aliaZ 18:23:57 09/23/04 You got it, - Chip(GMS Racing) 18:44:26 09/23/04 True, my boost controller is closed shut - HakenTT 18:55:03 09/23/04 Yes it is. (n/m) - Chip(GMS Racing) 19:23:47 09/23/04 Can you swap actuators while the motor is in the car? (n/m) - kryptonite729 19:59:51 09/23/04 In theory, but you pretty much have to remove the - boileralum 20:38:28 09/23/04 Yea the one side is tucked in pretty good - kryptonite729 20:55:41 09/23/04 I pulled mine to install the HKS actuators after realizing - boileralum 21:48:45 09/23/04 Chip I sent you a email. (n/m) - Jason300zxTT(NoVA) 19:15:21 09/23/04 Check your e-mail. - Grateful Zed 19:49:09 09/23/04 its been 3 days and still no paypal? - chris@boostpro.net 22:34:27 09/23/04 Will do tomorrow - Chip(GMS Racing) 23:00:23 09/23/04 very cool (n/m) - Zeus 18:34:55 09/23/04 very nice (n/m) - ENVYMYZ 18:39:39 09/23/04 Do the Noltec motor mounts have that half moon tit - AzHeat 18:41:50 09/23/04 Thats a mestake - HakenTT 18:51:41 09/23/04 JWT includes stock actuators w/ sport 500 - Chip(GMS Racing) 19:26:22 09/23/04
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