Sizing a turbo correctly
04-16-2016, 07:42 AM
#1
On The Tree
Thread Starter
Sizing a turbo correctly
Before you say anything I have read and read...I am still not understanding it all. I read everything I can get my hands on.
I have a 08 Silverado 2wd, short bed with a 5.3. I am installing aftermarket PRC heads and a cam. As well as putting together a turbo system. My first go around. This is a street driven truck that is not daily driven but I want it fast and the ability to drive it whenever I'd like.
I need some help/opinions on what size turbo to run I guess. Seems like most are running a s475?? But the other sizing numbers I don't understand when it comes to sizing the correct unit that I will need.(??/??) Also the waste gate sizing, the spring controls the pressure correct? But the 46mm,50mm, etc throws me off as well. I greatly appreciate any help I could get.
Thanks!
I have a 08 Silverado 2wd, short bed with a 5.3. I am installing aftermarket PRC heads and a cam. As well as putting together a turbo system. My first go around. This is a street driven truck that is not daily driven but I want it fast and the ability to drive it whenever I'd like.
I need some help/opinions on what size turbo to run I guess. Seems like most are running a s475?? But the other sizing numbers I don't understand when it comes to sizing the correct unit that I will need.(??/??) Also the waste gate sizing, the spring controls the pressure correct? But the 46mm,50mm, etc throws me off as well. I greatly appreciate any help I could get.
Thanks!
04-16-2016, 10:14 AM
#2
Gate sizing is dealing with the size of the valve in the gate.
5.3L a 46mm is plenty.
Turbo sizing depends on the final HP and more importantly what you want out of your kit.
If your looking for big hp on a Dyno, low track times, or daily driving fun.
5.3L a 46mm is plenty.
Turbo sizing depends on the final HP and more importantly what you want out of your kit.
If your looking for big hp on a Dyno, low track times, or daily driving fun.
04-16-2016, 11:06 AM
#3
Yeah, It depends on your goals. If you just want a fun daily around 450-550 hp, then I stick with a smaller S366 or S369. Will spool really well on a 5.3 and be a blast on the street. A S475 is a 800+hp capable turbo and as such, won't spool as fast on a 5.3. It really all depends on what you want out of the truck.
If I was specing you a turbo kit, I'd build a BW S369, JGS 40mm wg and a 50mm bov. Would be a really fun street truck!
If I was specing you a turbo kit, I'd build a BW S369, JGS 40mm wg and a 50mm bov. Would be a really fun street truck!
04-16-2016, 07:40 PM
#4
On The Tree
Thread Starter
Daily fun and couple track times a year
04-16-2016, 07:43 PM
#5
On The Tree
Thread Starter
Yeah, It depends on your goals. If you just want a fun daily around 450-550 hp, then I stick with a smaller S366 or S369. Will spool really well on a 5.3 and be a blast on the street. A S475 is a 800+hp capable turbo and as such, won't spool as fast on a 5.3. It really all depends on what you want out of the truck.
If I was specing you a turbo kit, I'd build a BW S369, JGS 40mm wg and a 50mm bov. Would be a really fun street truck!
If I was specing you a turbo kit, I'd build a BW S369, JGS 40mm wg and a 50mm bov. Would be a really fun street truck!
04-17-2016, 10:22 AM
#6
Like the BW S369sxe???I'd love to be around 600hp from what I've read. How do I figure out the AR I need? The wg is the hot side and the bov is cold correct? Do you sell any of these? I want a really aggressive street truck to drive to the track a couple times a year with my buddies.Thanks alot for your help
