Need some Help A/R Hot side sizing - Turbo Updated on Page 2
#23
#25
I'm gloating still about a side exhaust exit with oval piping just behind the passenger side wheel. Never seen any 944 swap guys do this setup before, so I'm looking for a little uniqueness in this track build.
#26
Update on the turbo.
I took in a new 7665 On3 turbo with 0.81 A/R. It was sold to me from someone who just lost their build to a collision. Sucks that it fell in my lap due to those circumstances, but I'll make use of it. Not sure how much better this would be over the CX T72 I originally had planned, but assuming a bigger inlet will expand opportunities for power later.
As I look at this turbo, I see it's not water-cooled like the CX. I don't see this as a big deal but it does worry me with a trial/time attack car given track temperatures can get up there. I'll be running a 160 thermostat to keep the engine cool in addition to an oil cooler. The 944 it's going into will have additional venting through the nose panel and a 924 Carrera GTS front end, which allows lots of air into the radiator, intercooler, oil cooler etc. The oil cooler will sit where the panel vents, and away from debris.
In the meantime, I can now say I am officially a TURBO OWNER
I took in a new 7665 On3 turbo with 0.81 A/R. It was sold to me from someone who just lost their build to a collision. Sucks that it fell in my lap due to those circumstances, but I'll make use of it. Not sure how much better this would be over the CX T72 I originally had planned, but assuming a bigger inlet will expand opportunities for power later.
As I look at this turbo, I see it's not water-cooled like the CX. I don't see this as a big deal but it does worry me with a trial/time attack car given track temperatures can get up there. I'll be running a 160 thermostat to keep the engine cool in addition to an oil cooler. The 944 it's going into will have additional venting through the nose panel and a 924 Carrera GTS front end, which allows lots of air into the radiator, intercooler, oil cooler etc. The oil cooler will sit where the panel vents, and away from debris.
In the meantime, I can now say I am officially a TURBO OWNER
Last edited by Uranium238; 05-08-2018 at 05:18 PM.