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Anyone have a spare set of wastegate actuators?

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Old Mar 21, 2003 | 09:50 AM
  #1  
texlurch's Avatar
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Default Anyone have a spare set of wastegate actuators?

I am in need of a pair of actuators, complete with rods and brackets.
Need to be the "push to open" type, and around 5-7 psi boost range. I think the ones on the T3 series will work..

Anyone have a pair they need to get rid of?

thanks!
Old Mar 21, 2003 | 10:50 PM
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Default Re:Anyone have a spare set of wastegate actuators?

A pair What exactly are you running
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Old Mar 22, 2003 | 07:37 AM
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Default Re:Anyone have a spare set of wastegate actuators?

uhh,,, twin Borg Warner turbos on a LT1 motor.. in a 68 camaro.. the turbos came off a diesel, and the stock actuators are controlled by a computer/vacuum relay setup..

I either have to replace them, or weld the gate shut and add a pair of stand alone wastegates. Figured it would be easier to replace the actuators..

I found a site that sells new ones for the T3's, so I'll probably go that route
Old Mar 22, 2003 | 09:06 AM
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Default Re:Anyone have a spare set of wastegate actuators?



Wow, you should probably have 2 boost gauges, one for each turbo, to make sure that the load on the 2 banks of cylinders is the same! If one is a little off, it might make your engine run off-balance sorta....
Old Mar 22, 2003 | 09:47 AM
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Default Re:Anyone have a spare set of wastegate actuators?

With those turbos coming off a diesel, what is the turbo exhaust side a/r? I wouldn't think that would work well for a gas motor that redlines at or around 5500. Anyways, nice setup. That thing is going to be scary fast.
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Old Mar 22, 2003 | 02:22 PM
  #6  
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Default Re:Anyone have a spare set of wastegate actuators?

Actually, with the gates wired shut, and one of the turbos not spooling up correctly (stiff bearings, doesn't spin as well as it should) I am seeing right at 11 psi, which is too much for the combo right now. That's why I need to get the right actuators, and rebuild the one turbo. I start seeing boost around 3500 - 4000 rpm, which is where the stall comes in right now.
And I have the rev limiter set at 6500 on this motor.. the solid roller 383 coming later will be set at 7500.. :P
Old Mar 22, 2003 | 11:42 PM
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Default Re:Anyone have a spare set of wastegate actuators?

Good god man!! What does that thing run The only thing better than a turbocharged motor is a twin turbocharged motor!!!
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Old Mar 23, 2003 | 06:32 AM
  #8  
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Default Re:Anyone have a spare set of wastegate actuators?

I haven't gotten it to the point where I can take it to the track yet.. playing on the street, I can spin the 31 x 16.5 Hoosier tires thru 1st and second..

It's a basically stock LT1 motor with a mild cam that went low 11's with a 100 shot before the twins, so I figure it should go at least that now...

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