How determine hot side size of turbo?
How determine hot side size of turbo? I can do the math on the compressor side and read maps, but how does one go about deciding on the turbine housing? How do you know what will choke what, what AR is apprpriate for your application, etc.?
Thanks.
Thanks.
Last edited by general23cmp; Apr 25, 2010 at 01:05 PM.
408 iron block. 8.5:1 compression, beefed up 700r4 with 3000-3500 stall, 9" ford rear with 3.93 gears, in 1971 chevelle. Looking for pump gas performance, maybe 750-850 flywheel hp with single or twins (maybe 15psi). Twin 60-1 turbos look to have promising compressor maps, but how to know if turbine side is sized right?
Thanks.
for myself i read alot of other successful set ups and then contacted forced inductions and gave a complete spec of what i built and what my goals are which is very important 100 hp can change a turbo and ar smaller turbo will require more ar and bigger will be less of course but im not a turbo expert as much as i would like to be so contact them they are good and many ppl on here will agree he can even enplane more on how to calculate an ar
With a 408 and twin 60-1, I go with a T4 based hot side and around 65mm Ptrim turbine wheels with .96 a/r's. If you want a faster spooling setup, then look for something in a .68 a/r. What brand turbo are you looking to go with? Those turbos are good for about 450rwhp each.
Trending Topics
With a 408 and twin 60-1, I go with a T4 based hot side and around 65mm Ptrim turbine wheels with .96 a/r's. If you want a faster spooling setup, then look for something in a .68 a/r. What brand turbo are you looking to go with? Those turbos are good for about 450rwhp each.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo I made 530rwhp on a single Garrett T60 with a .81 hotside, P trim. Granted it was completely out of breath.
What heads are you going to run? And cam? Seeing as your auto I wouldn't be afraid of a .96 AR. .68s will spool faster but will hold you back on the big end, plus they won't really be necessary with the auto. I'd lean towards .96s or .81s.
What heads are you going to run? And cam? Seeing as your auto I wouldn't be afraid of a .96 AR. .68s will spool faster but will hold you back on the big end, plus they won't really be necessary with the auto. I'd lean towards .96s or .81s.
