ST185 RC WTA intercooler on ST165.

Q&A regarding engines, turbos, and intercoolers and power upgrades

ST185 RC WTA intercooler on ST165.

Postby 3SDNA » Sat Dec 21, 2013 5:19 am

I have an 88' 165 with a 2nd Gen exhaust manifold and CT27. I have purchased a WTA from an RC St185 and am in the process of collecting all of the parts I will need for the intercooler swap.

I am having a hard time finding some info on this swap by using the search function. I see a lot of info on the 205 WTA swaps, but none for the 185 WTA on a 165.

Has anybody completed this swap, and if so, would you mind divulging your knowledge on the subject?

Thanks.
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Re: ST185 RC WTA intercooler on ST165.

Postby SkagTits165 » Sat Dec 21, 2013 6:26 am

Ive done it. What info/parts are you looking for?
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Re: ST185 RC WTA intercooler on ST165.

Postby 3SDNA » Sat Dec 21, 2013 6:31 am

Does the intercooler match up with the throttle body without modification?

Does the RC intercooler bolt up where the stock 165 cooler went?
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Re: ST185 RC WTA intercooler on ST165.

Postby SkagTits165 » Sat Dec 21, 2013 10:17 pm

I bought it off someone on this forum, with only the intercooler. I made the three brackets that hold it down; fairly easy. The cooling inlet lines are bigger, so i had to find new hoses that would enable two different size hard lines, 1/2 stock, to 5/8 RC if i remember correctly. As far as the mating to the throttle body, i think that i cut down the tube on the cooler, and somhow re-formed it to not be on such an angle, compared to the throttle body angle. Also had to re-clock the turbo. Lots of farting around, but well worth it.

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Re: ST185 RC WTA intercooler on ST165.

Postby 3SDNA » Sun Dec 22, 2013 12:23 am

Awesome!! Thanks for the help, and the link!
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Re: ST185 RC WTA intercooler on ST165.

Postby SkagTits165 » Sun Dec 22, 2013 6:49 pm

I did a sequence of pictures like this to determine where to cut the inlet side

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