External Gate Setup

Honestly I think you just need to try these different methods and see what works for you. Much like all things power making, there are many ways to arrive at a same or similar result in my mind.
 
Brett, Dan, The soot is a minor trade off to having pressure available instantly. Drive is present on the valve face so to offset it we use drive on the top of the piston as well. The springs can then be toned down some and fine tuning of the opening rate, closing rate and overall lift can be adjusted easier. Now thats our experience. I am not saying it wont work (obviously it does in both your cases) but if its laggy and no boost is present early on then the imbalance favors opening the valve as opposed to keeping it closed unless you spring it to death and then it doesnt tune as easily.

To the Tial website guy
Tial gates with a single spring stack, low drive pressure, gasser design, the last thing I would want is regulated pressure on top (especially boost which is in short supply early in the cycle) and full pressure on the bottom in a drive heavy scenario with 200+ lbs (65lbs on 2" diameter valve....) of actual pressure on the valve face trying to launch it into orbit against a weak spring selection. Again just a personal preference, by no means the bible. You may even choose to file this in the category of "what the hell does this guy know anyway"
 
Chris, yeah thats crossed my mind about the drive starting before boost since thats what drives the charger but I havent really got deep into tunning it until I take care of a few other things.

Side Note.........Voice messages? PM's? on that other waste gate setup??????? Whats the deal
 
carfichris said:
Brett, Dan, The soot is a minor trade off to having pressure available instantly. Drive is present on the valve face so to offset it we use drive on the top of the piston as well. The springs can then be toned down some and fine tuning of the opening rate, closing rate and overall lift can be adjusted easier. Now thats our experience. I am not saying it wont work (obviously it does in both your cases) but if its laggy and no boost is present early on then the imbalance favors opening the valve as opposed to keeping it closed unless you spring it to death and then it doesnt tune as easily.

To the Tial website guy
Tial gates with a single spring stack, low drive pressure, gasser design, the last thing I would want is regulated pressure on top (especially boost which is in short supply early in the cycle) and full pressure on the bottom in a drive heavy scenario with 200+ lbs (65lbs on 2" diameter valve....) of actual pressure on the valve face trying to launch it into orbit against a weak spring selection. Again just a personal preference, by no means the bible. You may even choose to file this in the category of "what the hell does this guy know anyway"
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What about using an adjustable elbow(aka flow control) and put it on the top of the gate, this would allow the gate to open slowly. I guess I just need to get on the stick and put a filter in it and try the drive on top method. On that note, what is the diameter on top of the piston? Rod diameter? I assume the 50mm gate is 50mm diameter?
 
on our 60 mm tial gate we went to a single spring and have regulated co2 to the top and can adjust to any overall boost we wish seems to work great
 
Maybe I could regulate my nitrous to the top.

Did I say that out loud?
 
yes nitrous will work just as well but $6.00/lb more to waiste that would be like breaking a six pack of beer on the ground per fill:bang
 
bubba1 said:
yes nitrous will work just as well but $6.00/lb more to waiste that would be like breaking a six pack of beer on the ground per fill:bang
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Inside joke- The sled pullers believe that nitrous is sacrilege if you get caught with it. :hehe:


Obligatory wastegate content. I'm using boost to the top side of my Synapse 'gate. It opens when the drive pressure goes ~12psi over boost pressure. It's only taken 2 tries to get the spring pressure inside correct, I'm happy.
 
I put my new wastegate on last night, i ran drive to the top and regualted boost to the bottom, if i run the truck with the boost open any at all it dumps everything and i can see no boost, does this mean i need heavier springs in the top. i got a bag marked extreem with a center spring in it, other than that i already put the heaviest spring on the out side.
 
What do I know - well I know that on every wastegate site there is , gasser or otherwise, regulated boost goes to the top. Period

On my truck I can regulate boost from 15 psi to whatever I wish and in the cab to boot, as that is where my regulator is mounted.


To the guy with no boost - you just proved my point - it means you have the lines backwards - regulated boost always goes to the top of the housing not the bottom

why? - because the regulated boost PLUS the spring pressure is what overcomes the unregulated boost pushing from the backside because you need more pressure worrkin against the valve to keep it closed - that is what makes it adjustable

anyway - do as you think best - then when your done bein frustrated - put the lines on correctly
 
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Valair1 said:
I put my new wastegate on last night, i ran drive to the top and regualted boost to the bottom, if i run the truck with the boost open any at all it dumps everything and i can see no boost, does this mean i need heavier springs in the top. i got a bag marked extreem with a center spring in it, other than that i already put the heaviest spring on the out side.
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Who's gate is it? Mine run how you have yours will stay closed up and over 105 psi drive if I want it to. My center spring also has a spring seat/shim that I have in it for additional pressure.
 
I tried running drive to the top and the lightest spring I have, but I couldnt get the gate to open. DP was about 75 overall boost 45, and primary only about 17. So unhooked the dp to the top and put in some heavier springs. DP is a little lower now but still around 60 with the same total boost and about 18-20 from the primary. This is with minimal fueling, flux 1.8s and quad x2 pressure, no smarty at this point. Shouldnt a 40 mm gate be more than enough to bring drive pressure down to the 1:1 level?
 
oldsmokey said:
I tried running drive to the top and the lightest spring I have, but I couldnt get the gate to open. DP was about 75 overall boost 45, and primary only about 17. So unhooked the dp to the top and put in some heavier springs. DP is a little lower now but still around 60 with the same total boost and about 18-20 from the primary. This is with minimal fueling, flux 1.8s and quad x2 pressure, no smarty at this point. Shouldnt a 40 mm gate be more than enough to bring drive pressure down to the 1:1 level?
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Sounds like the back pressure on the valve face isn't letting the wastegate blow open. I would regulate ~10psi of boost on the top side and see where that leaves you.
 
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