CHDiesel
New member
- Joined
- Apr 9, 2018
- Messages
- 31
I've already spent days searching forums and articles with no direct answer or solid argument.
I'm putting together parts to 2nd gen swap my 6.7, hoping for fastest spool streetable 650hp with a tune for 800hp smoke free for local dyno contests. Plan on doing fuel shortly after. I drive 70mi a day for work, and occasionally tow about 20k
I can't decide between s465, s467.7, or s472. They all come with 74.3mm turbine exducer with 83mm OD.
The major differences are the compressor inducer and exducer. How much of a difference is there spooling with all having the same exhaust side? At what hp does that turbine with .90 AR become restrictive or inefficient? 1.0 AR? Is there a rule or formula about compressor to exhaust size for my application?
I'm putting together parts to 2nd gen swap my 6.7, hoping for fastest spool streetable 650hp with a tune for 800hp smoke free for local dyno contests. Plan on doing fuel shortly after. I drive 70mi a day for work, and occasionally tow about 20k
I can't decide between s465, s467.7, or s472. They all come with 74.3mm turbine exducer with 83mm OD.
The major differences are the compressor inducer and exducer. How much of a difference is there spooling with all having the same exhaust side? At what hp does that turbine with .90 AR become restrictive or inefficient? 1.0 AR? Is there a rule or formula about compressor to exhaust size for my application?