PT76 VS PT88 Side by side comparison pictures
PT76 VS PT88 Side by side comparison pictures I had always wanted to see a direct compariston of a PT76 vs a PT88 physically but had a hard time finding one. I purchaced a PT88 for the 2009 Season and thought I would share the side by side pics.
The PT88 is 1.25" Longer then the PT76 and the real magic for my excessive back pressure will happen on the turbine side. The turbine wheel is close to a half inch larger
Enjoy!
The PT88 is 1.25" Longer then the PT76 and the real magic for my excessive back pressure will happen on the turbine side. The turbine wheel is close to a half inch larger
Enjoy!
What is the difference between the two? As far as I know they are the same internally, but have different housings. I am going to be nowhere near maxing out the PT88 so wouldn't the smaller PT88 spool up quicker than the GT47-88?
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Basic measurements can be found here in a full schematic
http://www.turbobygarrett.com/turbob...0-7,8,9,10.pdf
I think we're talking about different turbos. The T4 flanged PT88 is rated to 1250 and is the biggest T4 turbo you can get. I have never heard of the PT88-47, but it might be rated higher due to it being a T6.
The PT 88-47 is a GT4718 CHRA stuffed in a T4 package, capable of 1400. Its a bad *****.. Easy way to tell the old PT88 has 7 compressor blades Like mine, the PT8847 has 6 Compressor blades and it's pissed off right outta the box.
If you are limited on room, ill get the pt8847 over the gt4788, size wise is a lot smaller unit and it will make plenty power on a small ci motor, i was able to tucked mine right where the alternator goes.