Engine/Transmission (1994 - 1998) II sps 62/80

[RSivula]

hello!finally got my new turbo,II sps 62/80. few pics here: ctdsl/turbo - Photobucket - Video and Image Hosting

htt 3-piece exhaust manifold,60lbs valve springs,ported,polished and fire ringed head is on the way too. a lot of grinding to do with the head. . aargh. .

how much hp/tq my truck will make after these mods?anyone with same kind of set up?maybe ddp4:s and water injection later. . current mods in sig.

 

[Forrest Nearing]

increase the timing to 17-18*. I made 535hp/1196tq to the wheels with sps62, DDP4's, 215 pump with rack travel mods on the AFC and 18. 5* timing. it was a really fun combo to drive. You'll love the sound of that turbocharger!

 

[Hammer]

II sps 62/80

?????.....

Is this a new charger because I have never seen or heard about a 80mm exducer wheel on one of their SPS chargers????..... Andy

 

[RSivula]

found this from dtr. .



62/80 - Dodge Diesel - Diesel Truck Resource Forums

62 is the mm of the compressor wheel inducer and 80 is the AR of the exhaust housing. Which comes out to be 14cm. All super phat shafts run a 71mm exhaust wheel and all the silver bullets run a 73-74mm 10-11 blade exhaust wheel. To my knowledge no one makes a S300 with a turbine wheel larger then 74mm. In other words I run a 62/80 too.

 

[Forrest Nearing]

sps62 means 62mm inducer and a 71mm exducer on the turbine. unless a custom build they all come with a . 80 A/R turbine housing that they call a "14cm" because that's how Holset measures their turbine housings and Cummins boys can't quite wrap their head around an area/radius number



it's really a 62/71-. 80 or 62/71-14 in Cummins-speak

 

[Hammer]

Forrest...

I kinda figured thats what he meant. Thanks... ... Andy