Boost gauge on qd32

[brendo]

Hi guys looking at getting a boost gauge never had a turbo before and no sure where to plug it in to was hoping someone could help I have taken a photo of where I think

 

[Dion]

Have a crack at drilling and tapping NPT on a nice thick part of the manifold, since your turbo install is non-factory you'll won't really find a common spot that everyone uses.

 

[nedm1989]

I just put a tee between the hose on front housing and the waste gate actuator.

 

[brendo]

I thought about that but want sure if that is where the boost controller would go when I get one

 

[bods]

Yep, on that hose. When you fit the boost controller, put it on the wastegate side of the gauge fitting and it will still read correctly...

 

[brendo]

Ok so boost gauge closes to the turbo then the boost controller closes to the waste gate

 

[bods]

Yep, that's how mine is, although it is a yd25, but same type of turbo and it works fine...

 

[brendo]

Thanks guys now just to get both of them what sort of boost are you guys running I don't want to run anything to high that I have to play around with the diesel pump

 

[bods]

With no intercooler I wouldn't push too much over 10psi, although I'm not sure what the turbo is set at. That's just what was recommended to me when I turboed my 85 mq patrol sd33... Just see how it goes first. Mechanical diesels are a lot cheaper to increase fuel on than the newer ecu controlled ones...

 

[brendo]

Thanks bods I can't remember what the shop said it was set and when they had it on the dyno when I go it installed just have to see I don't want it to be race are quick that's what my xr8 is for just want it a bit better to tow me boat and when it loaded up

 

[brendo]

Is there any way I can increase the fuel on the pump or is it best to get a tuner to do it

 

[bods]

There should be a fuel screw, one for idle and one for off idle. There was a thread that someone did with photos and everything when he fitted a turbo to his, although I can't remember who it was now... Had pics of the adjustment screws too

 

[brendo]

Ok boost gauge is in and working good running 8 psi so not to bad. So next question is I read somewhere that if I adjust the nut on the rod of the wastage it will increase the boost a few pound is there any truth to this or do I need a boost controller only want to increase the boost a few psi

 

[brendo]

Thanks bods I will try and find the thread

 

[bods]

Nah, if the wastegate is adjustable, shortening the thread will increase boost, you only need a boost controller if the wastegate isn't adjustable...

 

[brendo]

Ok thank so I'll try winding in the thread and see what happens

 

[brendo]

Iv adjusted the wastegate and it is now 9psi so not a big jump. I only want to run about 10psi but was wondering if I'm only going two psi high will I need to adjust the pump or not. And also dose anyone know much about this turbo it's a Garrett tb2568 cpn 4466409-0002 just want to make sure I'm wont be pushing it to much at 10psi this the first turbo Iv owned

 

[bods]

Yeah, you will have to shorten it a fair bit to get more boost. To get 10 psi out of the sd33 I had, I ended up having to cut the threads down a fair bit on both ends to shorten the actuator. They run about 7 stock...

Anyway, 10 psi shouldn't be pushing it too hard, that's still not a lot of boost. It's just that the air temp starts increasing faster over 10 psi..

 

[brendo]

Ok thanks mate I took it for a bit of a drive it went a abit better I'll try 10 and see how I go