Headers in Diesel engines ..

Tapage

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Hi all CruiserHeads ..

I'm just curios and I'm read a lots in internet about the headers .. but in any place I can found information about. And is interant to know if this feature can be aplied on a Diesel engine.

I have a 2H engine, running good with some extra diesel amount in the chamber, maybe a headers is a good idea.

thanks for all .. :D
 

crushers

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headers are only useful at higher rpms, they actually kill torque at lower rpms...
probably this is why you do not see much for a header for diesels...
larger exhaust works to get rid of the heated exhaust and drop the egts...
 

Tapage

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Maybe I can buy ( where . ? ) a header to my 2H engine, to do that, drop the EGT, and in my case the torque was compensate by my lower gearing ..
 

roscoFJ73

 
 
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crushers said:
headers are only useful at higher rpms, they actually kill torque at lower rpms...
probably this is why you do not see much for a header for diesels...
larger exhaust works to get rid of the heated exhaust and drop the egts...
I would normally agree but others are getting great results on the dyno.

http://www.4wdaustralia.com.au/Forum/Archive/2005_3/23189.asp

My local fuel injection shop promises a gain 6HP with no loss of torque anywhere.
 

aussie75series

 
 
 
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I have run a 3" mandrel bend exhaust,headers and special muffler(cant remember what) for about 15yrs just built a new exhaust but anyway the whole system was designed by a bloke who asked if I wanted to test it.It works great whether its in the head or on the road I don't know.An exhaust company bought his design and I never head another thing.Incidently he tried with the Hilux(mini truck) but coulded get a suitable result.I wish I had the test results he did.It sounds good anyway
 

crushers

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roscoFJ73 said:
Aussies nearly always use Genie Pacemakers although Ive only ever used them on a V8 gasser many years ago.
Heres another thread of mixed results on the 2H

http://www.4wdaustralia.com.au/Forum/Archive/2004_2/11967.asp
this is what i am getting from those articals. they ran the extractors AND oversize exhaust, i might have missed it but i did not see any tests with stock exhaust with the extractors which would be the true test of increased performance. i have seen simular resualts just using larger exhaust and stock manifolds...
 
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tlcruiserman

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Would we all agree that if you are running a turbo on a diesel that a larger exhaust will help keep the EGT's from building up (all else equal that is).

I know that on my first AXT turbo kit, they told me I needed to increase the exhaust pipe size or I would have problems with heat.

Cheers,

Michael
 

Tapage

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tlcruiserman said:
Would we all agree that if you are running a turbo on a diesel that a larger exhaust will help keep the EGT's from building up (all else equal that is).

I know that on my first AXT turbo kit, they told me I needed to increase the exhaust pipe size or I would have problems with heat.

Cheers,

Michael
In my HJ-60 the stock exahust pipe is 2" and the only modification that I have in it, is the glass pack from dynomax, 2" off course.

AXT recomended increase the exahust diameter to 2.5" .. or 3" .. ?
 

Tapage

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roscoFJ73 said:
Aussies nearly always use Genie Pacemakers although Ive only ever used them on a V8 gasser many years ago.
Heres another thread of mixed results on the 2H

http://www.4wdaustralia.com.au/Forum/Archive/2004_2/11967.asp
what is an extractor .. ?

I'm do anything that I can do for better performance on my HJ-60 in gearing issues .. but my 2H engine is basic the same thing .. 105 HP

I have already safari snorkel, K&N but in my concept are no diferent, or not noticiable. When I put the 2" glas pack , have a fasted increase on rpm, but basic the same power ..
 

beanz2

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Be careful extrapolating other's gas engine experience to diesels. Even with gassers headers can be made to work with low rpm's with proper sizing of primary tubes.

Dave
 

crushers

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the gassers do not respond to headers at low rpms as well as stock manifolds.

the question that begs an answer is:
has anyone tried using the stock exhaust system with a set of extractors? if so what was the results...?
 

HZJ60 Guy

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Isnt it kind of accedemic anyways. If you buy a Safari systems turbo kit for a 1HZ you get a split pulse exhaust manifold (theirs) with the kit.

So you just wasted money on a set of extractors.
 
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Tapage

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HZJ60 Guy said:
Extractors is Australian for Headers.

Same thing.
thanks ..

I ask a quote from AXT turbo, and the kit right now cost about 3000 USD in my hand. Is to much money to me, for a turbo Kit.

I can buy new one, from some old shop here is for 3B engine KKK, and adapt it ( if I can ) to my 2H engine, but pay 3000 USD for a kit .. I don't care.
 
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My 2H has aftermarket headers, that were installed in Australia, but I don't know what brand, or if they made an improvement since they were on there when I purshased the vehicle. I am fairly happy with the performance of my cruiser, and don't plan on adding a turbo anytime soon.

 

Tapage

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Dude .. !!!! incredible pic .. !!! did you have other ones of the entire header . ? pleaseeeee ..

I'm not sure but look like the configuration has 6 - 3 - 1 .. ?
 
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