Thursday, Apr 02, 2009 at 09:25
Had Bdt exhausts fit a 2.75" to the Paj.
The new dump pipe and bigger exhaust allows the turbo to spool up sooner too, less turbo lag, and more boost at lower revs.
I now change air cleaners more often, it also helps the engine breath better.
I have an EGT and turbo boost gauge, and as Isuzumu says, this gives you a chance to see where possibilities are.
Like your 4.2, my diesel is the older mechanical pump design, so chiping is not an option.
What I have done is put a hand controlled boost controller on (set and forget, about $50.00) , and turned the boost up another 2 to 3 psi.
Then watched the EGT to see what temps I was getting at
places like the
Toowoomba range. Turned up the fuel about 5% to get 650 to 680 deg C max before the turbo.
I have bigger tyres so less power to the wheels, but it now pulls up the range in 3rd, and has spare power when sitting on the speed limit. Cars need to pull over to let me through! That didn't happen before.
Other option for more power is to go for smaller diameter tyres. :o)
On a run up the Blackbutt range the other weekend was managing to stay ahead of a stock 3.2l diesel NP pajero, so the stock 92 kw must be up near the 110kw of the 3.2. But the torque improvement is amazing, so learn to drive it using the torque.
If we were all really serious about power, we wouldn't be driving 4wds. :o)
Was overtaking B doubles/road trains going to
Roma a couple of weeks ago without too much of a worry, and getting 120 to 130k reasonably easily.
Otherwise I just keep plodding along, letting the
grey hair blow in the wind.
(So maybe get a pajero!)
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