look what brown did for me!!!!!

[swankmetal]

for those who have read about the sidewinder truck, you're already familiar. this is my first time seeing one in real life though. it's pretty cool. now all i need is to figure out how to use it (hint,hint,hint,HINT,HINT). here's the pics:

 

[swankmetal]

first pic is with no air going to the diaphragm, second one is with air. so at rest, it acts like a big housing. to get it to spool like a little one it needs pressure applied . we gotta get this one figured out.

 

[swankmetal]

last two pics.

 

[patcarman]

hey swank,now im just throwing this out there,what if u had a air soarce to a switch,which you could controll like a two stage waistgate button,once its making booste then hit the switch,its an idea.....

 

[swankmetal]

not familiar with a two stage wastegate button. please explain. i'm open to ALL idea's.

 

[patcarman]

swank ill try to explain,i have a 1985 suzuki gs 1150 es(well its actually 1503cc)with a 4 valve head that flows 145cfm with a t2 garrett turbo. i have a wastgate that uses air to operate it,then i have a pushbuton switch on the left handle that actuates the air waistgate. now when its in the firs stage which i set at 15 lbs, then i hit the button and it goes to 45 lbs. the reason i set it like this is so when i have it on the first stage i know i can run around on pump gas and make about 185 horse and not worry about detonation,and so when i leave(dragracing)it dont make to much power and over power the rar wheel,then when iv got race gas in it, or when ive got it under controll and im rolling i can go to the second stage and hope it holds. and at 45 lbs it can easly make over 400 horse,and u better be holding on... . anyhowimnot sure how that turbo works does it need air to hold it closed(little turbo) then take it away, or release then it opens up,,anyway dont know if it could work like that but im hoping you got the idea im talking about... ... hopefully someone might know what im saying and might know how you could do it.....

 

[swankmetal]

i think i got ya. i also think this needs a little bit more of a gradual transition. before i opened it up, i was thinking i would be able to hook it up the drive pressure. need it to go the other way though. high pressure at low rpm's and gradually release until fully open at high rpm's. gotta get to work. keep it coming guys.

 

[SRadke]

How much pressure does it take to open it with that cylinder? You could use boost or drive pressure if the cylinder was big enough but you'd either have to put the pressure to teh other side of the piston or make some brackets and remount the piston so it pushed the other way on the lever.



-Scott

 

[swankmetal]

i was putting about 35 psi or so into it and it moved pretty fast. a boost elbow type thing could help with that, no? i'll be checking it out tonight. thanks for the idea's guys. keep em coming.



dave

 

[pwerwagn]

I agree with SRadke. Re-mount the diaphram assy so that it takes pressure to open the vanes. then hook it up to boost pressure. As the turbo creates more pressure, it opens the vanes on itself up allowing more flow. Are the vanes spring loaded? What does it do if you remove the whole diaphram assembly, does is stay closed or open (im refering to closed as "small turbo" and open as "big turbo")??? Or, maybe use a series of pnuematic solenoids with regulators and a vaccuum pump to open the sucker. Use a series of mico switches (like for N2O) to control each solenoid, and the regulator will determine how much the vanes open at a certain throttle position. but then if you just stomped if from a dead stop, it would open all the way. Just thinking out loud here... .



--Jeff

 

[DRAG DIESEL]

the vg's work good when the shaft speed sensor is hooked up to a controler to make the variable function happen.

 

[swankmetal]

i don't think there is a shaft speed sensor on this thing. no wires coming off it anyway. i was checking it out tonight, and i think i'm going to open the diaphragm and see if i can flip the spring around. anyway, if anybody has more thoughts, let em roll. thanks for the input so far.



dave

 

[Froadin]

Any updates?

 

[Brianpump]

Any ideas on controllers for vgt or vnt turbo control. I am playing with the idea of a garret turbo from a powerstroke as a top turbo on twins. It is supposed to be electrically controled. One guy said he was runing one and using a NOS controller on it. I have to question him as he was supposed to e-mail details and sold me a 03 block that was supposed to be good but was scrap. Of coarse will not return calls or e-mail. Banks is working on their shape shifter controller but not yet on market and first ones will be tied to their six gun tuner and I don't need or want that. Brian

 

[Philip]

What is the lowest pressure needed to move the vanes out to the smallest position?

 

[swankmetal]

well, last things first. takes about 35-40 psi on a not so trustworthy gauge to get it all the way up. now, update. i took the actuator apart to see if i could flip the internals around. not going to happen. in doing so though, i realised that operating off boost would not be a good idea. because when you're cruising down the interstate, at hopefully less than 10 psi, it would want to be all closed up. not giving you any of the advantages of the mechanism. all i can figure, is that i need to get a signal from the crank sensor, and have an electrical engineering buddy make a variable regulator and connect it to some on-board air type thing. and, i found out that i DO need the shaft rpm sensor. couldn't figure out what that hole was for. so, if anybody has one of those just laying around or something, let me know. so, thanks for the input so far. i'm glad i'm not the only one interested in getting this figured out. if you come up with any more thoughts (like, why my thinking above could be flawed somehow), please bring them to the table.



dave

 

[Nyoest]

On my buddies turbo busa' we use co2 to regulate the waste gate pressure at 150 psi, it's constantly changing and we couldn't fine an air system to keep up. He's got a programable boost controller, each gear it runs more boost on his, maybe something that could help you?

 

[swankmetal]

tell me more!!!!!!!!!!!!!!!! Oo. Oo.

 

[Philip]

Ok swank I am kind of mumbling to myself.



You need pressure on that control rod to make the turbo act as a small housing. Look at a small air cylinder. Something in the bimba line comes to mind right off. Make sure it is a double sided cylinder. (Make sure it can be rebuilt also. This means you can take it apart). Take it apart and install a spring in it strong enough to apply the pressure you need to make it think it is a small turbo. Then all you need to do is apply pressure to the other side to make it move the vanes the other way. You would need a controll valve that is controlable. Low pressure applied at the start and more as the valve is moved. This valve would be hooked to the throttle linkage.



More mumbling here. A semi air ride control valve comes to mind.

 

[swankmetal]

like one of these phillip? i hope so, cuz i've got one. i was going to give it to my engineering buddy to backwards think, because that one runs off 32v. holset aftermarket says that they don't know what it is. . i don't think their telling the whole truth .



i JUST had an idea. to bad we don't have vacuum (well, not really) because i could take the spring out of the actuator and run it off that. oh well. keep em coming.



dave