[Andrie]

I'm about to get some gauges:
1. Pyro
2. Trans Temp
3. Boost gauge

Now the questions,
1. What is the max boost on the truck?
2. This is my first turbo car ever, is the installation on the boost gauge pretty straight forward? Anyone have instruction?
3. Should I worry about the trans temp after the cooler or before?

 

[rawpower]

1. 17 psi in labs, 15 psi recommended. You will not achieve more than 9 psi with a stock set-up. If you run copper headgaskets, crush collars, and head studs, more than 20 psi is obtainable, but not necessarily wise.

2. The boost gauge comes with fittings that should tap right into where the plug is found on stock intake manifold hats (the snail looking thing). Remove the plug, replace with the boost guage fitting, install with boost pressure line, run line through firewall to gauge.

3. Normally the trans temp sensors tap right into the tranny housing where the stock sensor goes.

 

[deanj]

Pyro:- install in the d/side exhaust manifold, opposite a exhaust port (a disclaimer - some people say that the tip can burn off and end up in the turbo - never seen it and I do not personally know of any one that this has happened to 20 + years). Max temp is 1200 (when I see 1100 I back off)
Boost:- in the 'snail' (top of the intake manifold) you will see a 1/8 pipe plug, install your fittings their. Max boost, depends on what you have done? (ats turbo out let, 3 inch down pipe, 4 inch exhaust. Mods to the intake. Boost turned. etc) If it is stock you will probably see 4-5 psi.
Trans temp:- Mine is installed in the outlet tube to the trans cooler (hottest temp you will see) I have a + with inlet outlet, trans temp guage and a temp switch that turns on my trans fan (170-180 deg)
Need more info pm me and will try and help

 

[pafixitman]

Agree w/ all of the above. I have upgraded housing, down pipe etc and see 6.5 max. My tranny temp is installed on the driver side in what was an existing pipe plug.

 

[gregrob]

[ QUOTE ]
Pyro:- install in the d/side exhaust manifold, opposite a exhaust port (a disclaimer - some people say that the tip can burn off and end up in the turbo - never seen it and I do not personally know of any one that this has happened to 20 + years). Max temp is 1200 (when I see 1100 I back off)
Boost:- in the 'snail' (top of the intake manifold) you will see a 1/8 pipe plug, install your fittings their. Max boost, depends on what you have done? (ats turbo out let, 3 inch down pipe, 4 inch exhaust. Mods to the intake. Boost turned. etc) If it is stock you will probably see 4-5 psi.
Trans temp:- Mine is installed in the outlet tube to the trans cooler (hottest temp you will see) I have a + with inlet outlet, trans temp guage and a temp switch that turns on my trans fan (170-180 deg)
Need more info pm me and will try and help

[/ QUOTE ]

The melting point of Inconel is 2500º+ depending on the alloy, it's not going to melt off.

 

[Andrie]

Is there a way to turn up the boost?

 

[rawpower]

yes. you drill out the crimps in the wastegate rod and tighten it down. Every 3 turns = 1 psi. I just wired mine shut, I can get over 15psi UNLOADED. If I were to put a load on it I could probable get 20+ psi. I think I am going back to the actuator, mainly bc with a wastegate you have faster off the line speeds.

Edit: also, more fuel and "stuff" that you put into the cylinders = more boost. so turning up your fuel, adding propane, water/meth injection, NOS... whatever, will increase the amount of boost.

 

[cwatanabe]

I cant remember exactly in my head what the acuator and rod look like, but just to mess around, couldnt you put a spring, like a throttle return spring, on the wastegate lever on the exhuast housing, and attach it to the arm that holds the acuator pod or somewhere in that nature, causing it to require more pressure in the manifold to move the acuator? Just to do a quick check on the outcomes of more boost.

 

[rawpower]

It is theoretically possible. But I don't forsee it happening.
In order to force the wastegate to stay shut for one more PSI over what you have, you would have to attach a spring that is equal to the amount of force plus the force of one more psi. So If you are at 5 psi, that means you are at 19 psi over a vacuum (atmospheric pressure is 14 psi). To add another psi would make 20 PSI. In order to gain another PSI over the original 19 PSI (above vacuum) you would have to employ a spring that had the equivilant force of 20 PSI over vacuum, or 6 PSI over atmospheric pressure...

Make sense?

Sooooo basicall, thats one hell of a little spring.

 

[TurboIHPower]

[ QUOTE ]
1. 17 psi in labs, 15 psi recommended. You will not achieve more than 9 psi with a stock set-up. If you run copper headgaskets, crush collars, and head studs, more than 20 psi is obtainable, but not necessarily wise.

[/ QUOTE ]

Everybody agree with this? I'm just wondering how much is safe to turn up my boost, without copper gaskets or anything.

 

[deanj]

Please drive over to my place for about 10 min at 2000+ degrees for 1/2 an hour.
Do not waste your time turning up the boost with a stock set up, the down pipe is only 2.25 inch flattened to 1 inch to clear the firewall lip, the intake is a joke. Fundermentals of diesels:- lots of cool air in - lots of exhaust out. With intake and exhaust mods 10-12 psi is possiple at wot, I would not recomend any higher without doing studs, gaskets etc. Do not forget idi have a lot higher compression ratio than powerchokes.