Toyota 2.8D

Power 60kW @ 4000rpm
Torque 183Nm @ 2400rpm-2400rpm

I had the 2.8 and most myn ever got to was 3500/3600 flat knackers down hill, only did it once when I first got it but no hope in hell of getting it to get to 4 g's. Except that one time (as above) I generally never reved myn over 3000/3200 max. I found you were reving the crapper out of it and not gaining anything. the only time I held myn at around 3200 was when pulling up hills, you know those pain in the ar#e ones where second its reving to much and third you dye in the ar#e so would just sit in the gutter lane and sit there untill up over the hill then change to third or whatever. The only time I have ever seen a 2.8 get to 4 g's is when it has been turbo'd. If your getting 10L per 100 and not blowing excess smoke I wouldnt be worried. I found the extractors just gave it that tad more punch mainly up hills but wont increase top end speed. My mate had the 2.8 4 runner and I would out pull him up Lapstone Hill here in Western Sydney but only by 2 car lengths over the distance sounded heaps better but than the standard exhaust. Regards Steve M

Sorry meant to say that mine also would rev freely from 750 rpm (idle) to 3g's even to 3200 was pushing it that bit hard. Just keep the oil and filter changes up to it (max 5g's) (I did mine every 3 1/2 to 4g ) and you will find the old girl will last. The big end bearings were a common problem on the 2.8 IF YOU NEGLECTED OIL & FILTER. You hear a lot of people with 2.8's complain of them going bang 99% because they didnt do the above. The 2.8 always over fuel'd a bit from the factory settings on the pump but not a major issue and most will have been rebuilt by now anyway. Regards Steve M

The 2.8 is not renowned for speed.
You dont mention how many Km it has done but at that age 300K would be a close bet?
When you fit the extractors replace the exhaust system with a 2.5 inch system and a free flow muffler and see what effect that has.
Other things to look at fuel filters, air filters , get the injectors serviced and the pump outputs adjusted to suit the new exhaust.
If that doesnt make a big difference get a blow by and compression check done and see if there is any major problems there.
The fuel pumps are good for around 250,000 km after that they may need looking at if they've never beeen touched.

I think you may be a good example of what Tojo gurus call
"memory effect". I have been told that if you run your revs to a set max, say 3000, after a while the pump will not open further
& 3000 is all you will get. The answer is to vary revs when new
by running up high under load briefly. My 2.8 non turbo revs
easily to 3750 in 3rd uphill but I rarely exceed 3500. Providing you
have adhered to good filter practices I doubt anything less than a pump service will get you any more revs. Extractors will improve
power & economy by up to 10% if you add a decent system to
them. They improve cold starting a lot...no shaking & rough idling
at sub zero temps. Friend added an aftermarket turbo to a 2.8
with 200k on it... blew every hose & seal & nothing but trouble.
Assuming you have a few k on yours I would opt for an injector
& pump service, not cheap but effective. Extractors if you wish.
cheers...oldbaz.