Author Topic: Please ID This Wastegate Actuator  (Read 3344 times)

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Offline Joel Russo

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Please ID This Wastegate Actuator
« on: November 03 2013, 12:20:34 PM »
Is this a HD or standard?



'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline Steve Wood

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Re: Please ID This Wastegate Actuator
« Reply #1 on: November 03 2013, 12:49:25 PM »
don't believe that was originally on a buick...if it will bolt up, I guess you can test it out to find out what it will do
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Offline Joel Russo

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Re: Please ID This Wastegate Actuator
« Reply #2 on: November 03 2013, 02:57:28 PM »
Steve ~
That was installed on my 87 GN years ago by the dealer,  and I have been running it ever since without issue.  I was entertaining the idea of installing a HD one, but figured I would see if this was a HD one or just a standard one. 
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline Steve Wood

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Re: Please ID This Wastegate Actuator
« Reply #3 on: November 03 2013, 03:46:28 PM »
Okay, first time I saw one.  The dealer units were adjustable unlike the original factory units.  It is a standard unit.  Standard typically will put out about 12 psi minimum and about 20 max

The HD units will put out about 18 psi minimum
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Offline Charlief1

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Re: Please ID This Wastegate Actuator
« Reply #4 on: November 03 2013, 04:20:19 PM »
I've got a dealer replacement here and that's not one Steve. I've got several like that I bought off evilbay and never tried to check the pressure so they may be the same as stock but it's not a GM replacement.
And remember, when dealing with children, silence may be golden but duct tape is silver.

Offline Steve Wood

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Re: Please ID This Wastegate Actuator
« Reply #5 on: November 03 2013, 05:26:38 PM »
typhoon or syclone?
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Offline Joel Russo

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Re: Please ID This Wastegate Actuator
« Reply #6 on: November 03 2013, 08:21:00 PM »
I've got a dealer replacement here and that's not one Steve. I've got several like that I bought off evilbay and never tried to check the pressure so they may be the same as stock but it's not a GM replacement.


So what the heck did the dealer install?  Probably a cheap replacement that is adjustable. 
Don't plan on running boost over 20 lbs, so would a new HD unit benefit me?
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline earlbrown

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Re: Please ID This Wastegate Actuator
« Reply #7 on: November 03 2013, 09:01:21 PM »


Don't plan on running boost over 20 lbs, so would a new HD unit benefit me?

nope
'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline Joel Russo

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Re: Please ID This Wastegate Actuator
« Reply #8 on: November 03 2013, 09:13:23 PM »
Thanks gents. 
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

 

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