GM boost control solenoid

ovlov760 · 05-17-2006, 05:16 PM

Information is intended for Megasquirt EBC setups only

I hooked up the GM boost control solenoid today and I like it quite a bit better than the 850 one I used. I didn't use the 850 one for more than a couple days, so maybe I missed something or maybe it was just too old and used up. With the GM solenoid I can run 100% DC in the lower bins to hasten spool up and still control the boost in the upper bins, but I wasn't able to do that with the 850 solenoid. The GM solenoid works well at a PWM rate of 19.5hz.

GM solenoid part #1997152

They can be had for $11 at GMpartsdirect.com. This is the OEM solenoid for the Gm Typhoon. The connector for the solenoid is the same one found on most GM windshield washer reservoir and coolant reservoir tanks. I believe it's for the sensor on them? It should look like this:

These were free at the local jy and stupid easy to find or ?$13? for one online. You will need to source one of these because they do not come with the solenoid. The solenoid side of the connector has a plus symbol on one side. Though everything i've read has said that polarity doesn't matter on these, you might as well run the +12v to this side just in case.

Hooking up the solenoid:
The silver barb alone on one end goes to wherever your drawing the signal for the wastegate actuator from. In my case it runs to the compressor housing nipple. The black barb on the other end next to the foam air filter goes to the wastegate actuator.

I mounted it on one of the studs below the coolant reservoir.

05-17-2006, 06:30 PM

dammit! that's what that little fuzzy thing was for?

I ripped it off...

thanks for the tip on the wiring connector!

Mike

RoadRacer4Life · 05-22-2006, 10:36 AM

HEY ADMINS PUT A STICKY ON THIS THREAD PLEASE

good info man

Sam

The Aspirator · 05-23-2006, 02:34 AM

Pure awesomeness, great info man. I think I'm going to go with this valve vs the 850 one.

benflynn · 05-23-2006, 05:05 PM

no sticky b1tches

05-22-2006, 10:36 AM	#3
RoadRacer4Life Owner: DeathWagon Join Date: Jul 2005 Location: Montgomery Alabama	HEY ADMINS PUT A STICKY ON THIS THREAD PLEASE good info man Sam __________________ God Created turbo lag to give V8's a chance.. 95 Nissan 240SX swapped 2JZ 9.42@151mph 870+whp? 08 Nissan Frontier 6speed 14.5@92mph <-tow bi*ch.. 90 245GL Build thread 11.9@112

05-23-2006, 02:34 AM	#4
The Aspirator It's a girl! Join Date: Apr 2003 Location: Vinemount, Ontario CANADA	Pure awesomeness, great info man. I think I'm going to go with this valve vs the 850 one. __________________ '83 242 '95 T5R '98 S70

05-23-2006, 05:05 PM	#5
benflynn bigpimpin740t@yahoo.com Join Date: Mar 2005 Location: Birmingham Al	no sticky b1tches __________________ think you got shorted? belive me, we have piles of turbos and ms units, email me w/what ever the hell you think we have of yours and when i am not on a river ill dig it out and send it to ya for shipping, one shotbigpimpin740t@yahoo.com one down, whose next?

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05-17-2006, 05:16 PM	#1
ovlov760 Daddy. Coma. Join Date: Jun 2003 Location: Midwest - IL	GM boost control solenoid Information is intended for Megasquirt EBC setups only I hooked up the GM boost control solenoid today and I like it quite a bit better than the 850 one I used. I didn't use the 850 one for more than a couple days, so maybe I missed something or maybe it was just too old and used up. With the GM solenoid I can run 100% DC in the lower bins to hasten spool up and still control the boost in the upper bins, but I wasn't able to do that with the 850 solenoid. The GM solenoid works well at a PWM rate of 19.5hz. GM solenoid part #1997152 They can be had for $11 at GMpartsdirect.com. This is the OEM solenoid for the Gm Typhoon. The connector for the solenoid is the same one found on most GM windshield washer reservoir and coolant reservoir tanks. I believe it's for the sensor on them? It should look like this: These were free at the local jy and stupid easy to find or ?$13? for one online. You will need to source one of these because they do not come with the solenoid. The solenoid side of the connector has a plus symbol on one side. Though everything i've read has said that polarity doesn't matter on these, you might as well run the +12v to this side just in case. Hooking up the solenoid: The silver barb alone on one end goes to wherever your drawing the signal for the wastegate actuator from. In my case it runs to the compressor housing nipple. The black barb on the other end next to the foam air filter goes to the wastegate actuator. I mounted it on one of the studs below the coolant reservoir. __________________ 1997 850 200k 1997 850 T5 125k ARD white tune ~~1988 760 Turbo~~ - Sold Last edited by ovlov760; 06-19-2006 at 12:55 AM..

05-17-2006, 06:30 PM	#2
740ATL Guest	dammit! that's what that little fuzzy thing was for? I ripped it off... thanks for the tip on the wiring connector! Mike