GPD R4 scroll

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71403
Posts: 39
Joined: Fri May 27, 2016 12:46 pm

GPD R4 scroll

Postby 71403 » Mon Aug 14, 2017 8:41 am

Local parts house mentioned some GPD-branded R4 compressors are now a scroll design in the same R4 package. Haven't had one here yet.

Would be nice to have a drop-in R4 replacement curious if anyone has tried one yet.
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bohica2xo
Posts: 517
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Location: Las Vegas, NV

Re: GPD R4 scroll

Postby bohica2xo » Mon Aug 14, 2017 10:06 am

Oh boy this will be great. I can hear it now...

"Why won't my Tahoe cool!?!?!"

Looks like the guts out of a TRS90 shimmed up in an R4 case.
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ice-n-tropics
Posts: 73
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Re: GPD R4 scroll

Postby ice-n-tropics » Tue Aug 15, 2017 11:53 am

The Trailblazer cooling with a TRSA105 scroll was great over 30 mph and barely acceptable at idle.
The TRSA90 is aprox 15 % less displacement, so the drive ratio is the final solution.
hotrodac
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bohica2xo
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Re: GPD R4 scroll

Postby bohica2xo » Tue Aug 15, 2017 9:23 pm

Yeah, and I don't see an 11 inch crankshaft pulley shipping with the compressor...

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