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Old 01-10-2013, 09:57 AM   #1
NC Firefighter
 
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Shooting For 600HP

Hello all, I've only made a couple posts on here but I've been reading and trying to learn for a couple years now. I'm looking to break 600hp, and I'm asking for opinions on my setup. My sig is current and up to date as of right now. Here's what I'm planning fuel wise.

5x14 injectors
Pusher Pump(full fuel system if this can't keep up)
Probably keep my 024 DVs


And here's the plan for air.

Triples. I hate doing anything normal and there's several trucks around here with twins. I can fab all the piping, so no problems with that. I'm looking at running my HE351 on the manifold and feeding it with a pair of HX35s, or possibly hybrids if needed. I was also planning to build in space and flanges for an external gate around the 351 if needed. I've searched and read everything I can find on triples and sizing and I think this should make a pretty nice setup but figured I'd get some more educated thoughts before I start buying parts. Hoping to do this in the next month or two.
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98 12 Valve, RCLB, 5 Speed, 3.55 Gears, No Plate, AFC Mods, Racked Barrels, 4K Gov Springs, Timed 16 Degrees, 024 DVs, Homemade Fuel System, HE351, Valair Ceramic DD, 5 Inch Exhaust, Isspro Gauges, 35s 436hp/1062tq 3/2/13
 
Old 01-10-2013, 10:37 AM   #2
12vChapa
 
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HX's put out more booost then the hybrids. You will need lager sticks in my opinion.
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1990 W250 4200 spring, power screw turned in alot, need air!!!!!!!! and injectors!!!!!!
 
Old 01-10-2013, 10:57 AM   #3
wildman6bt
 
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One of the threads on here said that the two primaries have to push the same amount of air as the secondary. Search "budget triples" on here lots of info in there.
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Daniel

03 Dodge 2500, Afe stage 2 pro dry filter, 50hp injectors, he351.

Thanks!
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Old 01-10-2013, 11:30 AM   #4
NC Firefighter
 
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From the info I've found an HX35 flows 52lbs per minute. So a pair would be 104lbs per minute. An S475 flows 100lbs per minute, so this triple set should be pretty equal to an HE351 over 475 twin set but with full wastegate control, or at least that's what I'm thinking.
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98 12 Valve, RCLB, 5 Speed, 3.55 Gears, No Plate, AFC Mods, Racked Barrels, 4K Gov Springs, Timed 16 Degrees, 024 DVs, Homemade Fuel System, HE351, Valair Ceramic DD, 5 Inch Exhaust, Isspro Gauges, 35s 436hp/1062tq 3/2/13
 
Old 01-10-2013, 11:32 AM   #5
wildman6bt
 
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I see what your saying. Have you got your pump maxed out yet?
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Daniel

03 Dodge 2500, Afe stage 2 pro dry filter, 50hp injectors, he351.

Thanks!
Mumau Diesel
Exergy
 
Old 01-10-2013, 11:45 AM   #6
NC Firefighter
 
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Without injectors yes, all the internal mods and 024 DVs.
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98 12 Valve, RCLB, 5 Speed, 3.55 Gears, No Plate, AFC Mods, Racked Barrels, 4K Gov Springs, Timed 16 Degrees, 024 DVs, Homemade Fuel System, HE351, Valair Ceramic DD, 5 Inch Exhaust, Isspro Gauges, 35s 436hp/1062tq 3/2/13
 
Old 01-11-2013, 03:12 PM   #7
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Quote:
Originally Posted by 12vChapa View Post
HX's put out more booost then the hybrids.
Hmmmmm not sure if serious
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Old 01-11-2013, 04:55 PM   #8
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How about the fuel side anybody see anything wrong with my plan? Free mods with 024s, 5x14s and a pusher pump feeding the stock lift pump.
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98 12 Valve, RCLB, 5 Speed, 3.55 Gears, No Plate, AFC Mods, Racked Barrels, 4K Gov Springs, Timed 16 Degrees, 024 DVs, Homemade Fuel System, HE351, Valair Ceramic DD, 5 Inch Exhaust, Isspro Gauges, 35s 436hp/1062tq 3/2/13
 
Old 01-12-2013, 09:24 PM   #9
4WheelinFreak

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i think you'll be fine with the 5x14s, i just have 5x12s in mine for now and it hases the tires at wop. i haven't had mine on a dyno so i can't tell you if this breaks the 600 hp mark, I'm still chasing oil leaks, belt issues, low fuel pressure and slow spooling
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97 chevy 1 ton crew cab solid front axle conversion with 97 12v repower, o-ringed head, valve springs, 4gsk, air dogg II, 5x12s, 024 dvs, no fuel plate, stiff afc spring, goerend trans, poor mans triples
 
Old 01-13-2013, 10:39 AM   #10
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Quote:
Originally Posted by 4WheelinFreak View Post
i think you'll be fine with the 5x14s, i just have 5x12s in mine for now and it hases the tires at wop. i haven't had mine on a dyno so i can't tell you if this breaks the 600 hp mark, I'm still chasing oil leaks, belt issues, low fuel pressure and slow spooling
Well 600 is just a general goal to go for, a little more or less is fine. I read through your triple build and youv'e done pretty much what I'm wanting except I'll be using a 351 not a HX40. Do you think the slow spooling is something with the turbos or fuel related? Also on your primarys, I can't really tell from the pictures but it looks like you just ground the v band off the outlets and put a boot on them. Is that right? I was considering doing that but I was also thinking about actually v banding the pipes.
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98 12 Valve, RCLB, 5 Speed, 3.55 Gears, No Plate, AFC Mods, Racked Barrels, 4K Gov Springs, Timed 16 Degrees, 024 DVs, Homemade Fuel System, HE351, Valair Ceramic DD, 5 Inch Exhaust, Isspro Gauges, 35s 436hp/1062tq 3/2/13
 
Old 01-13-2013, 12:23 PM   #11
4WheelinFreak

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I'm pretty sure it's just a fueling/tuning problem, and yes that is what i ended up having to do to the primaries, i haven't had any issues with blown boots there so it's up to you.
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97 chevy 1 ton crew cab solid front axle conversion with 97 12v repower, o-ringed head, valve springs, 4gsk, air dogg II, 5x12s, 024 dvs, no fuel plate, stiff afc spring, goerend trans, poor mans triples
 
Old 01-13-2013, 01:04 PM   #12
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Cool I think I'd rather use boots so I'll probably just do the same thing. Another question since you'e actually done this already, how did you run the downpipes? I was planning on dual 3 inch till the transmission, then probably go to 5 inch from there back.
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98 12 Valve, RCLB, 5 Speed, 3.55 Gears, No Plate, AFC Mods, Racked Barrels, 4K Gov Springs, Timed 16 Degrees, 024 DVs, Homemade Fuel System, HE351, Valair Ceramic DD, 5 Inch Exhaust, Isspro Gauges, 35s 436hp/1062tq 3/2/13
 
Old 01-13-2013, 01:36 PM   #13
4WheelinFreak

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I used 2.5" off the turbos but that was due to some clearance issues, other than that that's exactly how i did it into my 5"
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97 chevy 1 ton crew cab solid front axle conversion with 97 12v repower, o-ringed head, valve springs, 4gsk, air dogg II, 5x12s, 024 dvs, no fuel plate, stiff afc spring, goerend trans, poor mans triples
 
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