Reply With QuoteAre you thinking of a swirl bowl precleaner? If so, check with a Donaldson Duralife outlet. Donaldson used to recommend their use only on stationary or slow moving plant.
Wizard
What is the recomended size for an Isuzu Pre cleaner.
75mm at 170 cfm or the High Flow at 320 cfm.
Swaggie
Are you thinking of a swirl bowl precleaner? If so, check with a Donaldson Duralife outlet. Donaldson used to recommend their use only on stationary or slow moving plant.
URSUSMAJOR
Wizard
Thanks for the reponse Brian.
I was offered a Donaldson Air Pre Cleaner from a fellow club member , part number P13-6115 for a similar price to a cheaper evilbay item.
I took a quick look on evilbay and found two types.
A 75mm standard flow , plastic bowl and metal cap number for around $ 45 and a 75mm Hi Flow that was of a similar construction but $85.
I would run a standard intake for everyday driving and just fit the Donaldson for any dusty area trips.
Not sure now whether to buy the club membr one or an evilbay one.
SysAdmin (Owner)
i used a pre cleaner on my 300tdi instead of the scoop and imho it was better than the air ram.
i know not how but it was. i had a 75mm one on it and it's only downside was every few hours in heavy rain you had to stop and empty it :P
if i had a snorkle i would be putting one on again.
2007 Discovery 3 SE7 TDV6 2.7
2012 SZ Territory TX 2.7 TDCi
"Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
"If you don't have a sense of humour, you probably don't have any sense at all!" -- a wise observation by someone else
'If everyone colludes in believing that war is the norm, nobody will recognize the imperative of peace." -- Anne Deveson
“What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
"We can ignore reality, but we cannot ignore the consequences of ignoring reality.” – Ayn Rand
"The happiness of your life depends upon the quality of your thoughts." Marcus Aurelius
Swaggie
Check the specs on Donaldson's website.
The larger/hi flow would likely have a lower pressure drop, however not be as efficient at removing particles, due to lower are velocities.
Master
SubscriberLand864
You will definitely need to use the high flow per-cleaner the smaller one will be too small. Airflow requirement for a 4BD1T is 275 cu ft/min
C H T
YarnMaster
at what rpm?Originally Posted by C H T
AT REST
By my maths 2000rpm
Martyn
1998 Defender
2008 Madigan
2010 Cape York
2012 Beadell, Bombs and other Blasts
2014 Centreing the Simpson
VKS-737 mob 7669
Swaggie
The formula for 4 cycle engine airflow is:-
(engine size in cubic inches x rpm / 3456) x volumetric efficiency
Assumed volumetric efficiency for an OHV naturally aspirated diesel engine is .90 and for a turbo version is 1.6
I make the number 352 for a 4BD1T, 238 cubic inches, governed at 3200 rpm.
URSUSMAJOR
Master
SubscriberSprint/Brian Hjelm
I need to correct the figure that I gave - 320 cu ft/min is closer to the mark (Revs are (I think) at a nominal 3000 RPM). The figure of 275 Cu ft/min is the nominal capacity of the 8" Donaldson fitted to the Isuzu Counties, and the minimum rated capacity for an airfilter for a 4BD1T. As as I remember the Donaldson rating is at 80% dust load, so therefore flow rates for a clean filter would be considerably higher and thus the filter is suitable for the 4BD1T applicaiton
C H T
Last edited by C H T; 20th January 2010 at 08:27 PM. Reason: Correction
Posting Permissions
| Search AULRO.com ONLY! |
Search All the Web! |
|---|
|
|
|
Bookmarks