manual boost controller

[IBMobile]

I just got rid of my boost elbow and installed a manual boost controller recommended by @kzimmer.   It's the best $5.46 I ever spent on this truck.  

Now when I mash down on the go peddle the boost gauge jumps to 26psi, trans shifts up and boost goes to 28psi.  When it shifts to 4th, boost hits 30psi and speedo saying 80.

No more boost bleed off.

 

There is a lot more room on the adjustment for more boost so how much more boost can I dial in and still be safe?   

[Me78569]

hy35 is efficent to ~32 psi 

hx35 is good to ~35psi

[Dieselfuture]

My hybrid hx35/40 62/67/12 is supposed to be good to 35psi also but lots more volume according to Zack from http://www.northamericanturbo.com

I had it over 40 and it seems to keep pulling. I got my defuel set at 40 so 42-43 is max I see. I need bigger injectors for sure as my 75hp are way too clean. 

[trreed]

I'll have some 7x0.0095's for sale here soon!

[Silverdodge]

1 hour ago, trreed said:

I'll have some 7x0.0095's for sale here soon!

Price

[kzimmer]

Awesome! I was shitting bricks here afraid you wouldn't get the same one, or wouldn't come to the same conclusion. Either way, I guess we've spent more $ on less. Looks like it's working good though!

Edited April 8, 2018 by kzimmer
Typo

[Ben]

@IBMobile

 

Were did you you get that at? I like it!

[Mopar1973Man]

3 minutes ago, Ben said:

@IBMobile

 

Were did you you get that at? I like it!

 

Same here. Where did you get that? Be way better than my nasty Edge Product elbow. Non-adjustable.

[trreed]

There was an eBay link posted a little while back by @kzimmer.  Come out of China. 

[Mopar1973Man]

38 minutes ago, trreed said:

There was an eBay link posted a little while back by @kzimmer.  Come out of China. 

 

I love to see the link os I could possibly buy one... 

[IBMobile]

This is the link.  The part comes out of Hong Kong.  When I ordered it the delivery date was posted to be 3 to 6 weeks, it came in a week.    

 

https://m.ebay.ca/itm/Adjustable-Manual-Boost-Controller-MBC-Ball-Spring-for-Turbocharged-Vehicle-O0B6/361900309685?hash=item5442f07cb5:g:HjgAAOSwNnRYmpXx

Edited April 8, 2018 by IBMobile

[Mopar1973Man]

5 minutes ago, IBMobile said:

This is the link.  The part come out of Hong Kong.  When I ordered it the delivery date was posted to be 3 to 6 weeks, it came in a week.    

 

https://m.ebay.ca/itm/Adjustable-Manual-Boost-Controller-MBC-Ball-Spring-for-Turbocharged-Vehicle-O0B6/361900309685?hash=item5442f07cb5:g:HjgAAOSwNnRYmpXx

 

Thank you @IBMobile for posting that link. I just ordered on myself. I think this might help a bunch on my EGT issue and WOT if I'm not hitting the choke point of the turbo. 

[IBMobile]

Final installation after adjusting boost pressure.

[Mopar1973Man]

What kind of hose did you use for the wastegate controller? Looks like simple fuel hose. 

[IBMobile]

Hose for fuel evap system till I can get silicone wastegate hose from a supplier tomorrow.   

Edited April 9, 2018 by IBMobile

[Mopar1973Man]

I guess I'll have to check with NAPA when I head back down to Ontario, OR on Tuesday. 

[IBMobile]

18 hours ago, Mopar1973Man said:

I guess I'll have to check with NAPA when I head back down to Ontario, OR on Tuesday.

NAPA has it part # EH227 1/4" turbocharger hose H/D truck silicone hose @ $17/ft.

This is a special order part and I would need to prepay the whole 50' roll for $850.  

I think not and will keep looking.

[Mopar1973Man]

Holy Crap. That is expensive!

https://www.napaonline.com/en/search?text=EH227&referer=search_form-allprod

 

I'd go to Transmission Cooler hose before I buy this stuff! Wow!

[Ed ke6bnl]

got to be dumb.  What exactly are we doing with $5 part. I believe I have a stick shift stock turbo on my automatic 98.5 truck. I have a hose that comes off the turbo and goes to what looks like a vacuum chambe with a rod. How can I benefit from this modification??

[Mopar1973Man]

Basically controlling the pressure getting to the wastegate. So if the hose was directly connect to the wastegate it would be open by 20 PSI and it quits building boost. This little 5 dollar part is going to regulate the pressure getting to the wastegate so the wastegate stay shut longer allowing you to build more boost. This does create more power. 

 

HX35W has a maximum limit of 35 PSI

HY35W has a maximum limit of 32 PSI

 

Beyond this your hitting the choke point of the turbo. If you had a drive pressure gauge hook up to the exhaust manifold and the boost pressure gauge you would see the drive pressure rising faster than boost which is the choke point and EGT's just take off from there.