EVERYONE needs to read this!

TYTILIDIE

METH HEAD
Hey guys. I may have found out something useful to everyone. On my wife's Ty, I have a stock speck motor, stock TB, 60# injectors and a 20g turbo. When I rebuilt the motor back in April, I installed the boost control solenoid on the the AC bracket by the radiator hose. So I ran the lines to the turbo like normal. Well recently. I disassembled our perfectly good turbo to replace the bushings and ended up screwing up the turbo. I bought one from a member here (20g) and got it in the mail. Despite the bent fins on the compressor wheel from shipping(I bent them back) the turbo was gorgeous.

I installed the turbo yesterday and went for a ride. It did NOT pull anything like what it did before. In fact, it felt like a glorified stock turbo. So I start digging in to the turbo and found the wheel has some decent side to side play. I went for a ride with the filter off and could hear a strange swish (but high pitch) when letting out of boost. Sounds fine when spooling, this is only when I let off the gas. At first I thought maybe this turbo is junk. Now I'm not so sure.

I figured, even if the turbo was going bad, it should realistically still pull. I checked the inside of the compressor housing and its hard to tell but as far I can see its not scraping. So I think, what did we do different on the re-install? Then it hit me, I decided to move the boost control solenoid back to the turbo. I thought, that couldn't be why I feel a lack of power could it? So an hour ago or so, I moved it back with longer lines for shits and giggles.

To my surprise, the truck felt exactly like it did before. So I put it back to the turbo, felt slower and then back again to the AC bracket and power feels better. I am not sure why this could be it is pretty weird. I thought back to Abe's Ty that had very fast spool up and I never could get why. I remembered that he had his bolted to the intake where the throttle cable stuff is. So I encourage some guys to try this and see if you notice anything. I notice a HUGE difference. Again I cant even begin to explain why this would be, all I know is that it seems to work and work well. Maybe its just my truck maybe not. Try it and find out. Let me know if it works or not for you.

Here are some pics of my install
 

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Beavis

Still plays with trucks
Re: EVERYONE needs to read this!

Are you sure it's not a change in boost pressure due to the extra length of the lines? I read instructions for a few boost controllers and it stated to make them as short as possible to be as accurate as possible.
 

WyoSyclone

Active member
Re: EVERYONE needs to read this!

I wonder if the boost solenoid is internally grounded... will have to check the schematics... if so, grounded it through the aluminum housing would be marginal. I think it's a two wire connector - maybe you have a bad ground through the connector??
 

warsaw

Sy#1012
Re: EVERYONE needs to read this!

It might be the heat from the turbo. Heat equals rersistance not enough power to soleniod when you moved it less heat so less rersistance Just a thought
 

leusgs

Member
Re: EVERYONE needs to read this!

The solenoid could be working intermittently or going bad and partially working. Moving it around might not have anything to do with it - maybe just the movement when you're bolting it on and off is making it work sometimes and sometimes not, regardless of position.

You could also try yelling at it.
 

TYTILIDIE

METH HEAD
Re: EVERYONE needs to read this!

Trust me when I tell you this, I know exactly what a bad solenoid does. It is either the location that is heat related or somehow the distance of the lines. It is not ground because ground for the solenoid goes back to the ECM. Either way you look at it, the trucks came with it on the turbo, may not hurt to move it. And lets not forget, the AC bracket is aluminum, a big piece of it too.
 

nello

Active member
Re: EVERYONE needs to read this!

Are you sure it's not a change in boost pressure due to the extra length of the lines? I read instructions for a few boost controllers and it stated to make them as short as possible to be as accurate as possible.

:stupid:
 

bonesdmz

In Mother Russia Typhoon drives You!
Re: EVERYONE needs to read this!

Gees, this trucks are awesome! I've never heard of anything like it when I was driving a Honda. SyTy's act like they are actually alive, they can have good mood, or bad mood, or headaches, or whatever :)

Good luck with the problem. I assume you doublechecked all the wires and tubes?
 

TYTILIDIE

METH HEAD
Re: EVERYONE needs to read this!

Again, the over boost is the same, 15psi. So with that in mind, why would a longer line increase the rate of spool? Because that seems to be what is happening and I don't get why.
 

dgoodhue

BuSTeD 4.3
Re: EVERYONE needs to read this!

Unplug the wastegate solenoid, so it only making the base boost. Take is for a ride and see what your base boost is. Repaeat again with the shorter vacuum lines.

My theory is I suspect your longer vacuum lines are bulging and increasing your base boost.
 

bonesdmz

In Mother Russia Typhoon drives You!
Re: EVERYONE needs to read this!

In fact, dynamic pressure does drop in longer lines. I assume this could be read as vacuum drops, too. So, you should really the shorten the tubes, or use thicker ones. Or both :)

It's just my 2 cents, and these are easy to check.
 

TYTILIDIE

METH HEAD
Re: EVERYONE needs to read this!

Why? The truck pulls WAY harder with the longer lines. Thats why I thought I'd share. Who cares about it being a little less accurate. If you get it to hold boost where you want it, you can make it PULL harder. At least thats what has happened in our case. It doesn't spike, creep or anything. Just get there faster.
 

BMFB

Not to scale
Re: EVERYONE needs to read this!

someone will have to go to autozone and buy a couple feet of vacuum line, and coil it up off the solinoid and see if it makes a differance.
 

bonesdmz

In Mother Russia Typhoon drives You!
Re: EVERYONE needs to read this!

Did you use the same vac hoses when putting boost control solenoid at pictured, and back to the turbo? Or used shorter ones for the latter?

I'm not very fond of turbos yet, so feel free to correct me :) The boost control solenoid checks for intake manifold pressure and lets some of the exhaust gases off the turbo to wastegate, in order to control boost pressure. Its kinda closed loop system. When you make these vac lines longer, the pressure drops, and solenoid will open the wastegate later, therefore leading to faster turbo spool-up.
 
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TYTILIDIE

METH HEAD
Re: EVERYONE needs to read this!

I used the hard plastic line on the short version ans silicone line for the long lines.
 

leusgs

Member
Re: EVERYONE needs to read this!

What about mounting in original turbo location and using the long silicone lines?
 

KDBL1TY

Member
Re: EVERYONE needs to read this!

Im with tytilidie. Little changes or tweaks yield results with these trucks sometimes with no apparent reason. I will try it in a few weeks. if it works great if it doesnt great. He thought about the issue and retraced his steps.Good tip and write up.
 
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