Ok here we are exposing the diffuser housing.
This is not the modified version for the 703 which means i shall remove it and
send it out to have the machining done

here is the modified version if you back up to the page where i posted the yellow page of the
differences in the 13 to the 703 this is the" reworked diffuser housing" to aid in cooling the bearing and seal.
The pockets or scallops are allowing more air to cool them.

Wow! What an awesome job your doing

at the beginning of this thread i said it did not look complicated,man was i wrong!

Knot Right, this thread is awesome. Where do you think you will end up HP wise when you are done with them? Are you dynoing them anywhere?

i have no clue what any of this stuff is or what it does, but i do enjoy all the pretty pictures. cant imagine how many parts baggies with random bolts you have laying around after a "quick teardown". im surprised after all those years that some of the parts dont look in worse shape from the salt water corrosion. there was an episode of "build it bigger" where they rebuild one of the turbines from the miss geico boat. on one of the parts the vanes had giant chunks blown out of it and the piece was essentially scrap metal. everything on yours just looks like it needs a little elbow grease to clean it up. then again i know nothing about turbines.


not to mention you have TWO turbines, so you're going to have to do this twice!

thanks bro Love your Avatar!

i really am trying not to get overwhelmed i keep reminding myself i got all winter.
The support that PPS provides is really the key.


Well i have the option to send them to Jim to run on the test cell.
However turbines have built in Torque measuring systems. 1125ft lbs equates to 62 psi on the torque gauge in the cockpit. I could pull to 78psi on my gauges
that is 1300ft lbs
With the 703 mods we are doing we will be just under 1500 ft lbs at 2000hp

yes excellent observation. Race boats are subjected to massive rooster tails of salt water which gets ingested
into the turbine this will ultimately increase the EGTs causing the damage usually in the first GP nozzle.
I have parts everywhere all labeled because my mind is not what it used to be heck i cant remember dinner last night
oh yeah it was Turkey !

Wait til you start putting it back on. lol

Christmas gift/stocking stuffer ideas for Gerry........
http://www.wilemanaircraft.com/ameli...82&subcat_3=82

So you decided on the uprate? What about the other unit?