Headers! True tubular coming from MBRP Exhaust?

[Vaughn MacKenzie]

Saw this on Diesel Truck Resource website. Hope it goes into production! This is for the 3rd Gen trucks.



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[Chipstien]

Sweet. And notice they are equal lenght runners too. Why don't they come out with those for the other Gens. :{

 

[Vaughn MacKenzie]

I donno Chip, should be easier to mock one up.



One potential problem I can see with a header like this is it may not be strong enough to support the weight of twins.



Vaughn

 

[Forrest Nearing]

Originally posted by Vaughn MacKenzie

I donno Chip, should be easier to mock one up.



One potential problem I can see with a header like this is it may not be strong enough to support the weight of twins.



Vaughn

EXACTLY!!!



although, that's easily overcome with some flex sections and some bracketry...



but the reason they came out w/ the 3rd gen first is because the 3rd gen boys have all the money!



Forrest

 

[Diesel Freak]

hmmmmmmmmm I am sure I can make that fit on my truck!

 

[Greg Boardman-RIP]

Originally posted by Forrest Nearing

...



but the reason they came out w/ the 3rd gen first is because the 3rd gen boys have all the money!



Forrest

And all the looks too!!!!!!

 

[Forrest Nearing]

Originally posted by Greg Boardman

And all the looks too!!!!!!

pretty trucks, but untill I see one with a P-7100 on it, I'm still yawning

 

[Detroitiron]

They do look good. Let's see them mounted on an actual engine in a real truck with a turbo, BHAF, OEM or aftermarket oil filter/dual filter system, alternator, etc. , and see how much room there is in there. And then, let's see some performance testing, stock manifold vs super duper expensive headers. Speed costs money, how fast do you want to go?

 

[Tomscreek]

I'll bet they'd be tough to keep tight too.

 

[RHARVEY]

With the 12v boys... dont you think there still could be the issue of heat and cool shrinking going??? The design of the ATS lets it float when the heat and cooling effect takes place. Still could have ears break off the head with this...

What you think?????





Rick

 

[Hohn]

Shrinkage shouldn't be a problem with these. They are made from tubing and welded into place. Therefore, they don't have the residual thermal stresses caused by the casting process.



If the OEM casting was properly stress-relieved, it wouldn't shrink either. A cryogenic tempering process would be ideal for these manifolds.



In addition the the equal-length design, this header should be superior in thermal efficiency as it will keep more heat in the exhaust (on average). It takes less heat to bring this header up to temp, so the header takes less total energy out of the exhaust to reach operating temp. Thus, faster spoolup.



Or so goes the definitely proven theory



Justin

 

[nickleinonen]

if it does go into production, i think i will get one... been eyeing the ats manifold for the 3rd gen but this looks better [and hopefully will not be too much more $$$$$ - maybe there will be a group buy ]

 

[Briman]

What kind of sound would a header like this make (not at the end of the tail pipe, under the hood). On a gasser a cast manifold is quieter than tubes. I'm guessing that it would be the same on a diesel. Not sure how a diesel combustion noise would sound through this piece. I also wonder how it would sound at the tail pipe.



Cast manifolds tend to last longer than headers and seal better.



How about EGTs, What about power? Someone get one and let us know.



Kind of sexy (you know, in a truck sort of way ) though. I'd like to try one.

 

[Tcolesanti]

I bet you would have to run safety wire bolts with this manifold just to keep them from backing out. They also should think about making that flange a bit thicker, with all the vibration our diesel's put out, I would'nt be suprised to see cracked flanges. Suprisingly, about 5 months ago I talked to a custom header shop and they said it would be extremely hard to produce a manifold like the one pictured due to the lack of room in the engine compartment. Just think, you would probably be limited on turbo size/ air filter size and you may have to change your downpipe due to a different location for the turbo.

 

[Vaughn MacKenzie]

Diesel Performance Unlimited

News FLash



I found out today a shop here in town which is mostly into local diesel performance, has build as is selling their own header kits!



For the 3rd Gen their header relocates the turbo a little more centrally and up and the kit includes a downpipe to the relocated turbo. They also can take care of you if you have the B1 or similar aftermarket turbo with a downpipe. Their kit is in the $700 range.



Unfortunately DPU doesn't have a website but their number is 509-546-9997.



They have sold 5-6 3rd Gen header kits locally and are going to give me a ring when one of their customers comes by so I can run over there and spec it out and take some pics. Stay tuned. . .



Vaughn

 

[Spooled-up]

I would think it would be pretty difficult to tap into that for an EGT probe. Maybe they should weld a fitting in there somewhere and plug it if you don't want to use it.

 

[NVR FNSH]

I'd like to see flow bench numbers and engine test data. On a boosted engine the gains from this type of flow improvement may not be as large as you'd think - the turbo overcomes a lot of sins.



Brian

 

[RustyJC]

Not to rain on anyone's picnic, but equal length headers on a turbocharged engine generally don't offer nearly the benefits seen on a naturally aspirated engine where negative exhaust pulses, properly timed during valve overlap, assist in cylinder scavenging. The turbo just "brute forces" the air through during overlap. Although there are still pulse-type manifolds available on turbocharged natural gas and diesel industrial engines, most use large open chamber "constant pressure" exhaust manifolds with Hitco-type insulating blankets.



Unless they are wrapped (insulated), the equal length tubular headers can lose quite a bit of turbo drive energy through heat radiation.



A back-to-back dyno test between the ATS manifold and this header might prove interesting!



Rusty

 

[cumminspwr01]

The dragster at cumminsracing.com has a 2nd gen 24v with a header instead of a manifold on it. I dont know if it was custom made or not. Maybe someone else could shed some light on that one.

 

[Vaughn MacKenzie]

12-valve Header

Just an FYI



Diesel Performance Unlimited also has header kits for 12-valve trucks for $750. Someone was wanting to know but don't remember who



Vaughn