Older ATR/module

[xltguy]

I am still discovering all of the mods that the original owner had done to this car,he gave me a build list to the best of his memory,but there is a lot of details left to me to figure out,I believe that the little sensor that is mounted behind the grill in front of the rad is a temp sensor that is part of the ATR chip.I will be installing 60lb injector/chip this winter,my  question,is there any value in keeping the old ATR module for timing adj?I am still getting up to speed with the latest and greatest products avalible.As i have have only owned this car for 10 months i still have a lot to learn about these cars. I tried to list all of the mods in my intro post.Any advice or input would be great.

[Steve Wood]

The car is a bit of time capsule that has been dug up and opened

No, the timing module is not useful today.  Rather, I would suggest buying a new TurboTweak chip with the 60 Lb injectors.  The chip is user programmable for both timing and fuel delivery and it will have far better drivability than the factory, or aftermarket chips of the day.

Much of the stuff from that time period was either based on false premises, or done fairly crudely before the intricacies of the ecm were fully resolved.  Still, looking back, it is amazing how well we made these cars run back in the day.  Today, we do it easier and more safely.

You might look on my site if you need help with the basics.

Scoobum and a bunch of other Canadians are on the site and are well versed in maintaining and making these cars run.

[xltguy]

thanks for the advice.I have read Vortex buick site (cover to cover),it was a great find, but it was before i even received the car,Now that i have been wrenching on and driving it for a little while,a re-read is in order,(soooo) much good info there,quite a lot to absorb for a new GN owner,but i will get there My next thing  to repair is the  leak coming from the trany pump seal,it started out small but has develobed into something that i cannot put off any longer,I expected these kind of things to pop up after not being driven for so long.Hope you guys dont mind but there will be more questions in the future,but i dont expect to be spoon fed,i have already done a ton of reading ,and will continue to do so until i know all the answers to my questions.Main reasion being is the lack of local expertise,other local GN owners i have talked to are content to just wash and wax there cars and let someone else do the work.

[xltguy]

Why is it that i only see the spelling errors after i hit the post button?I blame it on fat fingers and lack of computer experience.

[Steve Wood]

don't worry about the errors...we all make them...and some times we even try to fix 'em!

those seal leaks are common on cars that sit...

[Scoobum]

A Scanmaster would be a good idea. I'm worried about the chip that's in it...cuz it could be a race chip. The adjustable wastegate actuator is making me think someone may have tried running race gas...as there's no mention of alky. Disconnect the ECM power wire...or the battery and remove the chip. Post a couple of pics so we can see what it is...it'll have numbers/letters on it. Steve should be able to decipher it. Someone school me on what a T3 turbo is. I'll guess it's a 60 with the 16930 that's in it. That ATR unit is cool...but it's antiquated. Like Steve said...Erics chip is the way to fly.

[xltguy]

Yes no alky,here is a pic of the chip,adj waste gate,ATR module,turbo.In your opinion do you think this system is working with (synergy)cause i am not sure who put it all together,orig owner didnt do any of his own work,he had a speed shop out of Toronto do all of the work.

[xltguy]

Turbo pic

[xltguy]

Adj waste gate

[xltguy]

ATR module

[Scoobum]

The bolt on inlet housing has me thinking it's a 44...and EMC on the chip leads me to believe it's from ATR. Help me out guys.

[xltguy]

Dont know why some of the pics didnt fully load,I noticed if I click on the partial pick, the entire pic opens up in a new window.Anyway, I found a post in another forum talking about the Garrett turbo P/N-466748 5005 and they were describing it as follows(stage 2  58mm wheel,.82 housing)not what the .82 housing refers to?

[Scoobum]

82 is the larger exhaust housing.

[Steve Wood]

sounds like one of the early ATR hybrids or a Kenne Bell hybrid