[Robert]

Originally Posted by wdodge45

Robert,
U out did urself again....the info is very helpful and I hear what ur saying about the GT-K 550's...so...my only concern will be that I have on center housings and must stay with that as that was how the car was built (my pics I sent u shows the setup). Will these turbos fit the same basic way as my on center 60-1's do???
Thanks for all the info, may have a few more just prior to ordering the new turbos....Sorry for all the questions, just want the car right....faster with good driveablity, what else could I want.....LOL

Thanks again for all the professional help and tech,
Bill

Bill,
The default part number comes with a tangential turbine housing but there are on center turbine housings available absolutely. I'm looking at the parts list right now and there is a F1-65 turbine housing, on center, 1.30 A/R available. Part number is 21609-65. (1.30 F1-65 ON CENTER 21609-65). You would just make sure you specify that you want the on center housing when you order the GT-K 650s and it shouldn't be an issue. Glad I could keep helping out. I can't wait to see how you like the turbos and see some video of the front end up charging up Oldsmobile. The compressor inlet of the GT-K 650 is a 4" in and 2.5" compressor outlet. This should be exactly the same as the inlet and outlet you had on your 60-1 full size. The actual dimensions of the compressor housing are larger on the GT-K 650:

GT-K 650 compressor housing dimensions: http://www.turboneticsinc.com/sites/...RIES_TURBO.pdf

60-1 compressor housing dimensions:

http://www.turboneticsinc.com/sites/...RIES_TURBO.pdf


So the compressor housing is larger but not by a whole lot and the inlet and outlet dimensions should be identical.