Need help with turbo/ wastegate placement
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Need help with turbo/ wastegate placement 
Building an 80 c10 . Forged 5.3 , s480 clone , Holley dominator , Holley turbo manifold. I think I know where it’s gonna go ,need some good places to get stainless pipe , and gotta fig out best place for wastegate
Depends on boost and power goals for WG size. Usually people go with a 44mm. For placement, take a look at the pic in the 2nd post:
https://www.theturboforums.com/threa...-small.373331/
https://www.theturboforums.com/threa...-small.373331/
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Basicly a street/ track truck . Would like a lot of boost control . Wanna mess around with boost by gear , mph etc ... first turbo build , so I'm tryna get it right the first time . Hoping for around 800rw maybe more on kill
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Originally Posted by truckdoug
VSR has a 50mm now. I was gonna try that with the billet s488 on my next rig.
I have an alpha tig 200. What should I set it at ?
Haven't done stainless yet lol.
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Use 308 rod... use 309 when welding SS to mild.Personally I just build stuff out of mild/aluminized steel. It’s cheaper and less prone to cracking
Does your Alpha Tig not have a foot control? I never wed without mine. Regulate welding amps with your foot.
And for the wastegate I would just buy a 50mm. JGS has a very nice wastegate made here in the good ole US of A. I’ve never had a lick of trouble from their products.
^ what he said. I probably put the dial at 100 amps, and weld at around 70-75A on 16g
the headroom is for getting going and doing naughty stuff like long-arcing into tight merges
super sharp tungsten 1/16 or 3/32 is fine. I use a #8 gas lens on stainless.
move fast and precise. do a couple "fake" passes so you can see where your torch hand will rest
let er rip
the headroom is for getting going and doing naughty stuff like long-arcing into tight merges
super sharp tungsten 1/16 or 3/32 is fine. I use a #8 gas lens on stainless.
move fast and precise. do a couple "fake" passes so you can see where your torch hand will rest
let er rip
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I agree with 3 window. Get a big filter and put it on the turbo then find the place where it fits good. I didnt do this and ended up with a pretty screwy filter mount that would suck in water when it rained no matter what i did. Only bad thing about have my turbo set up.
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Well I was thinking of cutting hole in rad support so filter would end up in near grille area . My buddy wants to keep fender wells, and if I put turbo back any more , pipe will look like an s.
I'm gonna order some pipe etc and see what I can come up with . Also gotta fig out turbo mount . Do I need a flex in anything if I weld a mount to frame ?
I'm gonna order some pipe etc and see what I can come up with . Also gotta fig out turbo mount . Do I need a flex in anything if I weld a mount to frame ?
put the wastegate in a turn before the turbo as close to it as you can. Imagine the exhaust gases trying to make that turn but run straight into the wastegate. If you do that, you'll have really good control over it with even a 44mm. I highly recommend skipping the china wastegate and getting a name brand like a tial. I went through this already and cheaped out on a wastegate......thats one place to not cheap out.....if it gets stuck shut (like mine did) then it could cost you a motor. Luckily i had my tune set to throw a bunch of fuel at it if it mechanically overboosted. and i let off quickly.
