triples......

[DodgeFreak]

Would compounding three turbos be pointless???? I'm not talking 3 the same size....I'm talking a small one into a slightly bigger one into an even bigger one......I was bored at work today since the boss was gone...lol

[BC847]

Seems like some folks are having some success with Two primary spinny-things blowing into a secondary spinny-thing. I think the goal is to keep the lag to a minimum.

[AHineman]

As for 3 stages like dodgefreak is asking, I'd say no for our application. Lots of heat and crazy boost would be my guess. I think I've seen pictures of setups like that on pulling tractors from years ago, but I think people have gone to two stages for a reason.

[DMan1198]

I'm pretty sure the setup you're talking about was run by Eric Clawson in this years dpc on his 6.4 breaky thingy. I have no idea how it would do on a ve 5.9, but why don't you give it a shot. at worst it could suck. either way it'd be a learning experience

[DodgeFreak]

As for 3 stages like dodgefreak is asking, I'd say no for our application. Lots of heat and crazy boost would be my guess. I think I've seen pictures of setups like that on pulling tractors from years ago, but I think people have gone to two stages for a reason.

When I was around 10 there was a pulling tractor that had 3 on it but I was to young to know how they was set up lol. I may try it just for Sh**s and kicks.

[DMan1198]

That's the spirit

[93flatbed]

What turbos were you thinking about using?

[Tacoclaw]

The main reason for triples is to get maximum inlet area for minimal $$. The costs of turbos with 100+mm inlets are insane, taking two ~70mm inlets is much cheaper, the only downside is the piping/and lubing of the extra turbo.

On the piping subject, have you guys seen some of the hot pipes on those triple setups? Running straight into a T with a turbo on either side, nothing to direct flow or anything. And they're talking about how fast they spool. Either they're exaggerating slightly, or the hot pipe isn't quite as crucial as everyone implies in order to get the best spool out of a twinset.

[DodgeFreak]

I've seen a couple that way and it doesn't look very good at all.....BUT once that pipe is filled as long I don't think it would flow much worse than a 90 into a box. with the two split....Would be kind of neat to put a gauge to see the backpressure between the two styles though.

[DodgeFreak]

What turbos were you thinking about using?

Not real sure...I'm not all that savvy figuring out the turbo size and maps, haven't really looked into it. But I know where a turbo off a John Deere 13 liter is that's pretty massive I can get. All it says on the side is John Deere from what I could see. I'll try to get it the next time I'm down and try to figure out the size.

[93flatbed]

What is your power goal? As I understand it a "massive" turbo isn't a good idea on triples. 3 hx35's is roughly the same as a 35/475 compound set. Just for reference. Small triples will get air quick. Which is ideal for our ve's.......in theory.

I too have looked at every triple build on Compd. Some of the ways those guys did piping is crazy and looks like it wouldn't work to its best efficiency.

[AHineman]

Am I misunderstanding the op? I thought you meant pulling air in a big turbo, and then compounding it through a medium turbo, and then compounding it again through a smaller one.

Or do you mean like BC and 93flatbed are talking.....like most people do it with 2 primaries and one secondary?

[DodgeFreak]

Am I misunderstanding the op? I thought you meant pulling air in a big turbo, and then compounding it through a medium turbo, and then compounding it again through a smaller one.

Or do you mean like BC and 93flatbed are talking.....like most people do it with 2 primaries and one secondary?

Your not misunderstood.... That's what I'm talking about doing. It may be a hot mess and pointless but I can get exhaust pipe reasonable through my cousin so it will just be my time...which i'm hoping here in a couple months I'll be moved down closer to where I can work on my stuff.

I've already got my plans for triples set up as 2 primaries and a secondary. Going that route I'm going to use my 351 with the hxshaft as the secondary and two hx's as the primaries.

[Tacoclaw]

I have a feeling that by the time the exhaust makes its way through 2 turbines it won't be feeling quite up to spinning an even bigger wheel. Let alone how much hot pipe would be involved in a setup like that, unless you could find a way to mount one of them right off the housing of another.

Then again, if you've got the stuff laying around and the time to do it, you know I'd be all for it. That's pretty much my specialty.

[93flatbed]

Oh. Sorry to mud up your thread. Carry on.