Still thinking about Triples

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Still thinking about Triples

Postby DodgeFreak » Wed Aug 17, 2016 6:14 pm

I'm thinking about dropping one of my cummins into my 77 short bed and have thought about triple turbos for awhile. I would use a he351 and 2 h1c's. One has a 16cm and if I can find my other housing one would have an 18. or I could go with the 16cm and a 12cm. or a 12cm hx35 and a 16cm h1c but I don't have another 12 or 16. I'm going to be fairly stock so I'm guessing I wouldn't even notice the difference. any thoughts?
92 D350 Cab and Chassis. Auto stock, wiring gremlins. 330k miles
92 W250 Ext cab rotted completely out. Auto, pump maxed, 215 ppump nozzles, Denny T2 pin.
85 D350 single wheel, converted to cummins, getrag, turned up 2 turns and afc screw flush.
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Re: Still thinking about Triples

Postby DMan1198 » Wed Aug 17, 2016 9:58 pm

Ideally it'd be best to run the tightest turbine sides possible on the primaries. Given that there's two of them they won't choke out given the ve's fuelling capabilities. Perhaps blocking one of the scrolls on the 18 (theoretically creating a 9cm housing) would be a decent option along with the 12 for the other primary. If you could somehow source a pair of hy35's (or if their 9cm housings fit the other cartridges then just sourcing the housings) that'd be an interesting way to do the primaries.
Ducati- professional nap taker, and thread derailer extraordinaire
Brownie: 80 dodge heavy half. Ghost cummins under the hood, and some sinister plans
The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
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Re: Still thinking about Triples

Postby DodgeFreak » Wed Aug 17, 2016 10:47 pm

The hy's housings won't fit the H1c\hx35s. so if I was to source hy's I would step up on to the he351's since you're not talking a lot more money. I'm wanting to do this on a tight budget and see how far you can go with little money invested, since a lot of first gen owners are tightwads (myself included lol)

Piping size from the secondary's to primaries is typically 3.5?
92 D350 Cab and Chassis. Auto stock, wiring gremlins. 330k miles
92 W250 Ext cab rotted completely out. Auto, pump maxed, 215 ppump nozzles, Denny T2 pin.
85 D350 single wheel, converted to cummins, getrag, turned up 2 turns and afc screw flush.
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Re: Still thinking about Triples

Postby DMan1198 » Thu Aug 18, 2016 8:18 pm

I've seen some duramaxs that run 3" hotopipes, mine right now is 4", and I've seen a lot of cummins running 4", but I'm going to try 3.5" when I can afford to get the sx-e's, and new manifold since I'm not all that tight with my money.

If you could do the whole triples setup for as much as my s467 cost me I'd be pretty impressed.
Ducati- professional nap taker, and thread derailer extraordinaire
Brownie: 80 dodge heavy half. Ghost cummins under the hood, and some sinister plans
The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
Jaeger: 12 ram 3500. Lifted, exhausted, and fed an excessive quantity of air
The Huntress: 02 Jetta TDI. No muffler, egr, horsepower
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Re: Still thinking about Triples

Postby DodgeFreak » Thu Aug 18, 2016 9:08 pm

Rough estimate on the cost of the s467? I think I'm going to try cuz a wife and 3 kids puts a damper on my spending lol.

I was looking around on compd and one guy is running a 3" hot pipe. I'm wondering if 3" will help with volecity
92 D350 Cab and Chassis. Auto stock, wiring gremlins. 330k miles
92 W250 Ext cab rotted completely out. Auto, pump maxed, 215 ppump nozzles, Denny T2 pin.
85 D350 single wheel, converted to cummins, getrag, turned up 2 turns and afc screw flush.
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Re: Still thinking about Triples

Postby DMan1198 » Fri Aug 19, 2016 7:37 am

Cost about $1500 after exchange, and shipping.

3" would make for an increase in exhaust velocity. I don't know how much it'd impact the primaries spooling though.
Ducati- professional nap taker, and thread derailer extraordinaire
Brownie: 80 dodge heavy half. Ghost cummins under the hood, and some sinister plans
The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
Jaeger: 12 ram 3500. Lifted, exhausted, and fed an excessive quantity of air
The Huntress: 02 Jetta TDI. No muffler, egr, horsepower
DMan1198
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Re: Still thinking about Triples

Postby JQmile » Sat Sep 10, 2016 1:05 pm

My buddy Harvey built a set for his rat rod, and they work awesome. I don't think the atmosphere turbos even have the same housing. :D

http://www.trucktrend.com/cool-trucks/1 ... bo-system/
1989 D250 2wd. Scheid 14mm VE pump and 5x25's, J&H Performance 47RH trans with Suncoast manual valvebody, dual wastegates, 62/65/14 S300, NX Dual Stage nitrous, 487 on fuel, 972 on the jug.
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