BAS 2.2 150hp vs 170hp

Quote:

Originally Posted by Hokoman

I agree that the Ashcroft Centre diff in this case is nice but unnecessary.
Having said that I've been meaning to write up my experience of fitting Ashcroft ATB diffs to front, centre and rear of my 2009 2.4 Puma with 105k klms on it in France.
As my mechanic replied when I asked him if the Ashcroft products were much superior to the standard Landy, he said "It's a world of difference!"
I also had the Ashcroft MT82 output shaft fix fitted - it seemed a no-brainer given that the Transfer Box was going to come out.
The original was OK, but dry of course.
The difference in the vehicle is just immediately apparent. 90% of the backlash gone. Everything feels not so much smoother but "softer".
Also keep in mind many experienced mechanics consider the driveline in the Puma generally to be weaker than previous Defenders, especially the earlier 2.4 models which had the 2 pin front diff. **** weak. The 4 pin rear is apparently more robust.
Sorry, don't want to hijack the thread. What I really wanted to say is if you or anyone does replace their centre diff, or has their Puma transfer box worked on, in my opinion it's really worth it to fit the Ashcroft MT82 Output shaft kit.

I run all of the above mods plus some and couldnt agree more.

I did a lot of extensive EGT testing last summer. I have an Alive tune amd cooler so i can't comment on the BAS tune specifically.

However a few points;

-A tune in Australia without a cooler upgrade is a bit silly in my opinion. A fully loaded vehicle on a 35 plus day will more than likely run high EGT readings. With the Alive cooler my intake temp is usually 4-5 degrees more than the atmo temp, which is great.

- the standard exhaust is restrictive amd runs higher EGTS. You dont necessarily have to increase diameter as you do flow. Simply do a decat and remove centre muffler, leave rear muffler on.

- running a snorkel robs some power, however running a snorkel has more positives thans negatives in my opinion. However this comes down to the individuals requirements and what they intend to use the vehicle for.

- a tuned vehicle, hot (35+) weather and air con blairing leads to a higher engine load and thus greater requirement of working load to keep the same vehicle moment and hence higher EGTS. Would i run a 170hp tune without a cooler and exhaust flow improvement on a hot day up a long hill at 110kmph with the air con blaring? No! The highest EGT reading I've ever had is 612 pre turbo in the manifold, id reckon it'd be close to 700 or more without a cooler and exhaust mods under the above mentioned example (i literally tested that a few times, when i hit 612 it was 37 degrees)

Sorry for long post....hopefully its good advice and helps those that are curious.