Single or Twin turbo setup for 360?
Turbos don't care about the type of engine, just the size and N/A HP. All he's doing is making a comparison about a 70mm turbo being big for a 2.xL 4-banger compared to a 5.9L V8.
I get that. Just for say… if a 70mm turbo is right for the 360 and a bad choice for a 4 banger, wouldn’t make sense to use a smaller turbo for the 4 banger? Of course it would. Unless someone is going to split a hair somewhere on me.
Are we towing with the 4 cyl.? If we were, what size turbo would YOU put on it? A 35? A 50? 70mm? Would the 70mm be about right for a 360 for this towing? Or is a large one, like I suggested not to use, like a drag racing set up?
Let’s say the 4 cylinder is a 3.0. Half the 360. Then would a 35mm turbo be right? Let’s run it around the other way. If the 70mm turbo is right for the 360 in a towing application, would a 100+mm turbo be OK for towing? Or better for racing.
Seems to me this is a area where nothing was defined but internet hero’s want to pick apart and talk **** about without answering any questions and even more so pertinent questions to the issue. Just side steps and insinuating or ish comments.
I’m not dogging you MoPar R&D
Just my opinion but watching both of your guys' responses, I think you could give him a bit more benefit of the doubt. Again JMO, not trying to judge just don't want this interesting discussion to go south because I'm learning too. I also read your earlier post about having boost early as being below ~2500 RPM. And that has more to do with load than engine speed.
Give who the Benny of the doubt?
I’m not getting it now.
I’d love to learn this myself.
So - seeing boost at 2500 (or less) means what to you?
7, 10. 14 lbs.?
Come 2K, is it OK to see 1 or 2 lbs.?
Or should I wait until 4500 or 5K for boost in towing?
The 7.3L Powerstroke diesel was fitted from the factory with an "oversized" turbo where when the truck was unloaded would only get into boost if you floored it and were above the mid-range of the RPM band. If you put a heavy load in the truck the turbo would become a lot more active at partial throttle and lower RPMs.
And my suggestion on getting the boost in earlier rather than later is a bad one but yet you point to a factory set up doing this with what your saying is an oversized turbo when not towing but oK when towing? This is a thread about towing right?
I’m about to write hypocrite in caps here bro!
Seems to be a lot of assumptions made on me here.
Even more so that I never made a specific recommendation on a turbo size. I just said boost early. Seems like some people think I would suggest (or I am suggesting) 14lbs. @ 2K.
I’m waiting on TT5.9mag to answer my questions.