Competition twins piping?

[Bigthumper]

does any one know if someone sells a kit of just the piping? and if so do they have it for a hx35 and a bht3b combo?

 

[jwilliams3]

www.sourceautomotive.biz

 

[Redram 1]

piping

Call Gene(Sledpuller)He sells piping kits,and they look really good.

 

[Bpostel]

J. R Adkins sells the piping kits also.

 

[TCluff]

DOES ANYBODY KNOW IF SOMEONE SELLS PIPING FOR AN HY-35 TO 3B-26 FOR AN 03-05

 

[MCummings]

DOES ANYBODY KNOW IF SOMEONE SELLS PIPING FOR AN HY-35 TO 3B-26 FOR AN 03-05

I broke the block on my truck with an HX-35/12 and 3B-22, so I'd be very carefull with what you do.



A 35 with a bigger exhaust housing or even a '40 on top is the way to go.



Merrick

 

[Sled Puller]

I'm retired.

 

[Forrest Nearing]

I broke the block on my truck with an HX-35/12 and 3B-22, so I'd be very carefull with what you do.



A 35 with a bigger exhaust housing or even a '40 on top is the way to go.



Merrick

was it a 53 block?



seems odd that you'd **** a block with a couple of baby turbos when people are running unreal fuel and boost and never complaining of "broken" blocks

 

[MCummings]

I'm not complaining of a broken block.



I think the stresses my motor saw with the baby turbo's were more than some other more powerfull setups.



Was it a 53 block? Yes, but it didn't break were they normally break, unless they all break from the thrust bearing and up around into the cylinder wall stopping just below the piston rings.



*I* think I floated the valves and rocked a piston in the cylinder.





Merrick

 

[Mark_Kendrick]

I'm not complaining of a broken block.



I think the stresses my motor saw with the baby turbo's were more than some other more powerfull setups.



Was it a 53 block? Yes, but it didn't break were they normally break, unless they all break from the thrust bearing and up around into the cylinder wall stopping just below the piston rings.



*I* think I floated the valves and rocked a piston in the cylinder.





Merrick

I don't think it was the turbos. Huff-n-puff runs ~640hp for 3 years now and fulmer made over 700 on a similar set of turbos. I think you found another '53' failure point... though it's the only cummins I EVER heard of splitting.

 

[MCummings]

On a 35/12 - 3B/22 I was doing 520rwhp.





Only changed the exhaust housing on the 35 to a 16WG'd and haven't hurt the motor yet. However, it blew up within 2 weeks with the 12cm housing (non-WG'd admitadly)





Merrick

 

[Mark_Kendrick]

On a 35/12 - 3B/22 I was doing 520rwhp.





Only changed the exhaust housing on the 35 to a 16WG'd and haven't hurt the motor yet. However, it blew up within 2 weeks with the 12cm housing (non-WG'd admitadly)





Merrick

were you running a wastegate at all? if not, your drive pressures were nasty high above 45-50psi. The internal gate on a 35 only supports ~550hp. With the 16wg you might get away with 600 or so. The 22 on the 3b will help a lot. With a 16wg you are probably not too far off 'matched' exhaust housing wise.



You still have the problem that the exhaust housing on the 35 is a choke point. It just isn't intended to flow 600hp worth of exhaust gases.

 

[MCummings]

That's exactly what I was thinking Mark.



It was WG'd, but wired shut :-laf I was running atleast 60PSI boost.



With the extreme backpressure, and extreme boost pressure, I think that's why I floated the valves and broke the block. Each piston had two intake valve indentions about . 1" into the piston.



With only changing the exhaust housing, and WG'ing, the boost is still at 62PSI on a cool nbight, but 55 on a hot day.





Merrick

 

[TCluff]

could you run an internal and external waste gate at the same time like if you were running a stock hy-35 and a 3b-26, to keep the drive pressure in check, or would intake air not be able to flow fast enough through the hy-35, around the 600 h. p. level ???????

 

[Jim Fulmer]

could you run an internal and external waste gate at the same time like if you were running a stock hy-35 and a 3b-26, to keep the drive pressure in check, or would intake air not be able to flow fast enough through the hy-35, around the 600 h. p. level ???????

Yes you could do this but I don't think anyone makes a piping kit using the HY on top for a 2nd gen. Most kits are with a HX on top as it is the most popular..... supply and demand. There is really not any money in Twin kits or building them unless you can get to the point of making parts on a Jig. Making a kit on the truck is a PITA in my eyes, I've done 3 like this and it's #3 in the worse jobs to do. Engine swap is #1, Cam swap is #2 and I've done them all.



Jim

 

[Mark_Kendrick]

Yes you could do this but I don't think anyone makes a piping kit using the HY on top for a 2nd gen. Most kits are with a HX on top as it is the most popular..... supply and demand. There is really not any money in Twin kits or building them unless you can get to the point of making parts on a Jig. Making a kit on the truck is a PITA in my eyes, I've done 3 like this and it's #3 in the worse jobs to do. Engine swap is #1, Cam swap is #2 and I've done them all.



Jim

the HY and the HX off of a 98-02 are a bolt in swap. If it fits a hx35w then the hy30-w should fit in it's place.



It makes the hx34/40 a natural upgrade path.

 

[MCummings]

Mark ran his truck for a little while with the '9 as a primary... .



Merrick