Thread: Puma 2.2 Egt's

Originally Posted by Baytown

I'm really interested in the whole cooling gill/vent discussion. I've been unable to find any photos on the net of a Defender with this mod though. Pat, do you have any photos or can point me in the right direction?
Thanks.
Ken

G'day Ken,
Here's a link to some fellas that have done the guard venting to their
It's something that I want to do on one of my 90'.

Mike.

Defender Engine Bay Heat - LH guard vent

Good on you Mike.
Thanks.
Ken

Update;
So today i drove back from Melbourne to Sydney. Most of the trip was spent at 32 degree weather. Unlike on the way down where i tried to push the limits of my defender i drove normally. "Normally" for me is sitting on 110-120kmph with the air con on. Not once did i let the speedo go below 110kmph and the highest egt was 609 degrees with 100 as the coolant temp. Within 30 seconds of reaching the top of the long hill the egts dropped straight back down to 370-420 and coolant back to 93-95 degrees.
After some insight from fellow members im happy with the coolant temps and the egts are spot on.
In saying all of this how important is engine oil temp?

Also note that the 609 degree egt was the result of at least 1 and a half minutes of full throttle, maybe longer. If i had just tried to maintain my speed rather than increase it up the hill i could have got up it with no more than 550. Once over 590 it literally ticks over at a snails pace. I doubt it would ever hit more than 650 degrees. Thats only the second time its gone over 600.

GDay Nando.
I hope you don't mind my replying to you on your thread. I thought it may compliment the relevant and very interesting conversations here.
I have my factory Cat and down pipe removed as well, so don't have the factory bung available.
I was waiting on getting my down pipe modified to fit a bung Post Turbo especially after talking to my Defender mechanic who doesn't understand any reason for pre Turbo, but I will show this thread to him and discuss accordingly.
As discussed, we have pretty much the same engine mods, now even including the Provent 200.
More to follow once I speak with my Tech.
Good on you fellas.
Ken
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Originally Posted by Baytown

GDay Nando.
I hope you don't mind my replying to you on your thread. I thought it may compliment the relevant and very interesting conversations here.
I have my factory Cat and down pipe removed as well, so don't have the factory bung available.
I was waiting on getting my down pipe modified to fit a bung Post Turbo especially after talking to my Defender mechanic who doesn't understand any reason for pre Turbo, but I will show this thread to him and discuss accordingly.
As discussed, we have pretty much the same engine mods, now even including the Provent 200.
More to follow once I speak with my Tech.
Good on you fellas.
Ken
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G'day Ken,

Thanks for posting on my thread Ken, its great to get as much useful info out there as possible for others. I suggest you look up Thermoguard industries and have a look at Ians blog. Pre and post turbo isn't as simple as people care to think, there can be a difference of upto 200 degrees across the turbine (that is not a typo....200 degrees celsius).

Guys on the patrol forum are reporting egts of 600 post turbo and people with the same mods reporting close to 800 degrees celsius pre turbo.

The turbine disapates a lot of heat and as a result the downstream reading is always substantially lower.

Having the probe in the manifold collector pre turbo ensures that you are getting the most accurate reading possible (other than running individual probes in each extractor).

However it is your decision and I'm excited to here your results either way.

Ps your truck sounds like its going to be the ultimate weapon when its finished

Originally Posted by Baytown

GDay Nando.
I hope you don't mind my replying to you on your thread. I thought it may compliment the relevant and very interesting conversations here.
I have my factory Cat and down pipe removed as well, so don't have the factory bung available.
I was waiting on getting my down pipe modified to fit a bung Post Turbo especially after talking to my Defender mechanic who doesn't understand any reason for pre Turbo, but I will show this thread to him and discuss accordingly.
As discussed, we have pretty much the same engine mods, now even including the Provent 200.
More to follow once I speak with my Tech.
Good on you fellas.
Ken
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Ken I'm sorry but there is a very good reason for upstream probe positioning. As alluded to i would direct your tech to ians Thermoguard page for some enlightenment. ..😐

Jc

Don't get me wrong fellas;
I consider some of the main posters here to be Gurus, and I take your advice accordingly.
When I spoke with my Tech at the 100K service, I'm sure I didn't explain the rationale for pre Turbo correctly.
As I have him do the big jobs on my truck, I like to keep a theme to the maintainance.
Anyway, pre obviously seems the consensus.
I wonder what the Poms do to their Puma EGT set ups? It would be interesting to hear from BAS, Alive, Twisted, Urban Truck etc just for comparison.
Best wishes fellas.
Ken