MAC Boost solenoid

Gray Goose · 09-30-2019, 08:30 AM

Does anyone have a good diagram on wiring and hose routing for the MAC on a single turbo system?

I believe the two wires go to the Evaporator solenoid. But, I'm not 100% on where that is...the one hooked to the back of the intake with the line going to the rear of the car?

I have found a few different diagrams online but I am not 100% on the hose hook up as well?

Any help would be appreciated!

soill370z · 09-30-2019, 09:39 AM

Yup thats exactly it and specialtyz makes a harness for 9 bucks, you just splice it to your mac solenoid wire orientation doesn't matter, DO YOU HAVE SINGLE OR DUAL WASTEGATES?

https://www.specialtyz.com/sz-boost-...connector.html

Gray Goose · 09-30-2019, 09:48 AM

Quote:

Originally Posted by soill370z

Yup thats exactly it and specialtyz makes a harness for 9 bucks, you just splice it to your mac solenoid wire orientation doesn't matter, DO YOU HAVE SINGLE OR DUAL WASTEGATES?

https://www.specialtyz.com/sz-boost-...connector.html

Daul wastegate

soill370z · 09-30-2019, 09:52 AM

I would do them like this except with your bp kit you would go off the charge pipe nipple instead of the turbo, I have my single routed the same way but with one wastegate

https://www.3si.org/forum/attachment...l-img_5093.jpg

soill370z · 09-30-2019, 09:55 AM

here is another way but i would do the first one but you could always ask your tuner what way he would prefer

https://www.3si.org/forum/attachment...l-img_5094.jpg

Gray Goose · 09-30-2019, 10:02 AM

Quote:

Originally Posted by soill370z

I would do them like this except with your bp kit you would go off the charge pipe nipple instead of the turbo, I have my single routed the same way but with one wastegate

https://www.3si.org/forum/attachment...l-img_5093.jpg

I do have the BP kit. I figured I should ask my tuner what he perfered. SO I asked Moncef at admin Tuning which way I should hook up the hoses. He referred me back to Sasa. FIgured asking here would be my best bet!

Gray Goose · 09-30-2019, 10:02 AM

Quote:

Originally Posted by soill370z

Yup thats exactly it and specialtyz makes a harness for 9 bucks, you just splice it to your mac solenoid wire orientation doesn't matter, DO YOU HAVE SINGLE OR DUAL WASTEGATES?

https://www.specialtyz.com/sz-boost-...connector.html

Thanks, I just ordered the Pigtail!

Gray Goose · 10-02-2019, 09:17 PM

So, would I split “B” to both wastegates? And leave the “A” open to atmosphere? Or block “A”?

Boosted Performance · 10-03-2019, 12:19 AM

That is an unusual configuration on your solenoid. Usually there is pressure in port (from a charge pipe or turbo compressor housing) and then a port out, which in this case would split, and go to both wastegates tops.

Is there a diagram or model number on that solenoid? If so, post it up, and we'll get it figured out.

The Weapon · 10-03-2019, 01:00 AM

Is it this?
Just T your top ports together and T your bottom ports since you have dual wastegates

Pretty good description here on how it functions
https://www.full-race.com/store/borg...ol-solenoid-1/

If your tuner does not know how to plumb it I'd be weary on tuning the duty cycle on it. Seems like it more sensitive to changes compared to the 3 port.

Gray Goose · 10-03-2019, 08:25 AM

Makes since I guess, I will try it like that diagram shows. If i need to reverse side A and B I can.

sirnixalot · 10-03-2019, 09:36 AM

I wouldn't bother teeing the boost reference source.

I drilled the spot welds on the evap solenoid bracket to remove the evap solenoid itself and added holes for the new MAC 3 port I am using. I did this since it would put the MAC solenoid conveniently next to the 8mm port that the evap system was using.

This does interfere with the engine cover if you plan on reusing that

Gray Goose · 10-03-2019, 10:06 AM

I am pretty sure you want your source to be on the charged side of the throttle bodies? I will not have to "T" the source hose if I hook it as shown in the diagram. I will have to "T" the lines going to the waste gates.

sirnixalot · 10-03-2019, 10:29 AM

Quote:

Originally Posted by Gray Goose

I am pretty sure you want your source to be on the charged side of the throttle bodies? I will not have to "T" the source hose if I hook it as shown in the diagram. I will have to "T" the lines going to the waste gates.

That source is on the intake manifold so it will see vacuum and boost. I am using the other port behind the drivers side throttle body to feed the boost gauge and fuel pressure regulator.

madwi · 10-03-2019, 12:09 PM

09-30-2019, 08:30 AM	#1 (permalink)
Gray Goose Base Member Join Date: Mar 2019 Location: LA Posts: 169 Drives: 2012 370Z Nismo #227 Rep Power: 6	MAC Boost solenoid Does anyone have a good diagram on wiring and hose routing for the MAC on a single turbo system? I believe the two wires go to the Evaporator solenoid. But, I'm not 100% on where that is...the one hooked to the back of the intake with the line going to the rear of the car? I have found a few different diagrams online but I am not 100% on the hose hook up as well? Any help would be appreciated!

09-30-2019, 09:39 AM	#2 (permalink)
soill370z Base Member Join Date: Mar 2015 Location: illinois Posts: 134 Drives: 13 nismo 370z Rep Power: 10	Yup thats exactly it and specialtyz makes a harness for 9 bucks, you just splice it to your mac solenoid wire orientation doesn't matter, DO YOU HAVE SINGLE OR DUAL WASTEGATES? https://www.specialtyz.com/sz-boost-...connector.html TXZGUY likes this. Last edited by soill370z; 09-30-2019 at 09:47 AM.

10-03-2019, 12:19 AM	#9 (permalink)
Boosted Performance The370Z.com Sponsor Join Date: Feb 2010 Location: Edmonton, AB Posts: 1,629 Drives: Z's Rep Power: 3383	That is an unusual configuration on your solenoid. Usually there is pressure in port (from a charge pipe or turbo compressor housing) and then a port out, which in this case would split, and go to both wastegates tops. Is there a diagram or model number on that solenoid? If so, post it up, and we'll get it figured out. __________________ 750WHP starting @ $7,500 to the door FOR DETAILS VISIT: http://www.the370z.com/members/boosted-performance.html FB: https://www.facebook.com/Boosted-Per...6303179791462/ IG @boostedperformanceyeg

10-03-2019, 01:00 AM	#10 (permalink)
The Weapon Enthusiast Member Join Date: Nov 2008 Location: Tucson, AZ Posts: 286 Drives: 370Z Tour/Sport Blk Rep Power: 3372	Is it this? Just T your top ports together and T your bottom ports since you have dual wastegates Pretty good description here on how it functions https://www.full-race.com/store/borg...ol-solenoid-1/ If your tuner does not know how to plumb it I'd be weary on tuning the duty cycle on it. Seems like it more sensitive to changes compared to the 3 port. Gray Goose likes this. __________________ Boosted Performance Comp Turbo - Tuner- CJM Fuel Return- Modified Berk CBE- ZSpeed Stage 4 Clutch - Southbend Flywheel - Tuned by Seb ~650whp - HKS Coilovers - SPL - Focal Audio 4 way Active - Audiocontrol DSP - Work CR 2P

10-03-2019, 09:36 AM	#12 (permalink)
sirnixalot Track Member Join Date: May 2017 Location: Cayman Islands Posts: 685 Drives: 2010 370Z Rep Power: 57454	I wouldn't bother teeing the boost reference source. I drilled the spot welds on the evap solenoid bracket to remove the evap solenoid itself and added holes for the new MAC 3 port I am using. I did this since it would put the MAC solenoid conveniently next to the 8mm port that the evap system was using. This does interfere with the engine cover if you plan on reusing that madwi and Jayhovah like this. __________________ 2010 Sport - LS3 swap loading 2012 Frontier - BTWTuning VK56DE swap Last edited by sirnixalot; 10-03-2019 at 09:38 AM.

09-30-2019, 09:52 AM	#4 (permalink)
soill370z Base Member Join Date: Mar 2015 Location: illinois Posts: 134 Drives: 13 nismo 370z Rep Power: 10	I would do them like this except with your bp kit you would go off the charge pipe nipple instead of the turbo, I have my single routed the same way but with one wastegate https://www.3si.org/forum/attachment...l-img_5093.jpg

09-30-2019, 09:55 AM	#5 (permalink)
soill370z Base Member Join Date: Mar 2015 Location: illinois Posts: 134 Drives: 13 nismo 370z Rep Power: 10	here is another way but i would do the first one but you could always ask your tuner what way he would prefer https://www.3si.org/forum/attachment...l-img_5094.jpg

10-03-2019, 08:25 AM	#11 (permalink)
Gray Goose Base Member Join Date: Mar 2019 Location: LA Posts: 169 Drives: 2012 370Z Nismo #227 Rep Power: 6	Makes since I guess, I will try it like that diagram shows. If i need to reverse side A and B I can.

10-03-2019, 10:06 AM	#13 (permalink)
Gray Goose Base Member Join Date: Mar 2019 Location: LA Posts: 169 Drives: 2012 370Z Nismo #227 Rep Power: 6	I am pretty sure you want your source to be on the charged side of the throttle bodies? I will not have to "T" the source hose if I hook it as shown in the diagram. I will have to "T" the lines going to the waste gates. sirnixalot likes this.

10-03-2019, 12:09 PM	#15 (permalink)
madwi A True Z Fanatic Join Date: Sep 2012 Location: West Michigan Posts: 31,410 Drives: Granma red Z Rep Power: 2684429	sirnixalot likes this.

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