Can we talk about triples?

roachie

roachie

Taco Master
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Nov 2, 2007
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From the sounds of it they are several mod trucks running tripples. Tractors have been doing it for years.

Seems that 2 Primaries into one secondary is common.

I want to know why?

What is the advantage of them over a single large primary?

What are the sizing guidlines?


Yes, I think it would be cool on my truck. and expensive, and a waste of time, and not make anymore power than 2 chargers, I just wanna know.
 
Im guessing that 2 primaries putting out less boost but more volume is just better than one bigger primary trying to make enough boost to push the same amount of air
 
triple compounding has been tried and failed miserably...but 2 into 1 seems to work.

Ive often wondered how 2 Hx-35's into one large secondary would spool on a hot street truck.
 
getblown5.9 said:
triple compounding has been tried and failed miserably...but 2 into 1 seems to work.

Ive often wondered how 2 Hx-35's into one large secondary would spool on a hot street truck.
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How would you run the hx35's ? Off a split manifold or something or...?


THe problem i see with tripples is the temperature drop by the time the exaust gets to the third turbo... correct me if i am wrong, but tractors ahve been doing it forever why not a truck???
 
Small tripples....Could be a good thing!!!


HUGE tripples....I think a few mod truck have shown that its doesnt work too well....Unless you like swaping blocks after every hook!
 
I searched tripples on here, didnt get much.

Im reffering to a 2 primary 1 secondary setup. 2 stages with 3 turbos.

I know the twin HX35's and twin HY35's are impracticle due to the turbine sizing, displacement, and RPM range.

I dont see heat loss as an issue though.
 
first off spell triples right and you might find something...

secondly, 2- HX35's into something bigger will work because its been done before.
 
last year there was a guy running four turbos around here on his tractor not sure how it was setup but he had the fueling set so he would hit 240psi then soon found out anything over that he would send a rod threw the block at 255psi.
 
I spelled it both ways (you damn yankee) didnt turn up much.

Just 1 thread on the subect, lots of others speculating.

2 HX35's would be the equivalent of a 24cm housing? That dont sound to good..
 
2 hy35?

It's an interesting idea, in a truck I'd think the hardest part would be splitting the exhaust to feed each of them. It'd be a tight fit for sure!
 
saw 2 HX35(atmo) into a large single at wilmington 6-7 weeks agao at the FFA pull
bassicly a parrellel compund style setup.

tripple in a series wont work unless you have something to bypass the small charger.


think ohms law ;)
 
AAAAAAAAAAAAAAAAAAHHHHHHHHHHHHH

2 stages, 3 chargers, 2 Primaries, 1 secondary.


Like a pair of S480's and a single S465.


Not 3 stages, even I know that isnt a good idea.
 
This is just my thoughts so nobody kill me for this comment, but im alittle concerned if they dont back this mod class down it is going to be the death of the class. The 3 charger idea is cool but they were blowing blocks with 2 chargers and i believe everybody that runs a mod truck has waisted a block this year. So this class has gotten way out of the reach of the normal poeple when your going through 2-3 blocks a year at 5-10k. Me personally would like to see them go back to the 2 stage max 2 turbo rule non-billet block and have 6-10 mods show up then what they are allowed now with the rules and have 2 show because eveybody else is broke. I also dont believe that the billet block is the answer either as Atley has shown the will also come apart. The question is, is how many times will you be able to fix them until they are fatigued to much to fix and i dont see alot of people replacing block after block until it gets to costly and give up. I think its an awesome class and would love to run in it one day but in the direction they are going theres no way to get in and be competitive

I also posted this under the scheid mod truck and just copied it to here
 
Bosshawg600 said:
Strailey said he lost one.....But who other than those 2 are running tripples on a Cummins Block?
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A few years ago (2006 I think) there was a mod truck running triples that grenaded a block at Scheid. It was a black regular cab called "big boy toy".
 
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