Evening Cruiser gurus, I’ve just joined the forum and am the proud new owner of a 2016 76 series V8, which I am loving. I live in Mozambique so am on terrible roads or in the sand almost 100% of the time except when we get back on the highway (not much better) for long trips. In the eternal search for better fuel economy/performance on those long drives, current tweaks have included:
EGR delete
CAT removal
Stage 1 remap
These have helped my fuel consumption somewhat and the power gains are noticeable. The mechanic who did the aforementioned works (whom I found via the Toyota forums) did say the CAT was completely blocked (no DPF on my model) so that could have contributed to the 5.5km/L consumption I was getting at highway speeds. Now I’m getting 7km/L on the 1000km trip from Inhambane to Joburg, which I’m pretty happy with as I got about the same with the V6 Fortuner. I do, however, get considerably better economy with the cruiser as a daily driver in the sand or the bush, the consumption really only starts to increase getting up over 110km/hr.
I don’t plan on doing any long distance heavy towing in the near future, so the obvious thing to do would be to do the 2nd and 5th gear change out. I saw someone mention on a forum that the longer 5th will drop the revs by about 400rpm. They then said, sticking on 285 tyres (presumably 285/75R15) would drop the revs at the same speed by 300rpm. A cheaper alternative to an expensive transmission opening job.
Sorry for the waffling but my question is basically: what do think of think of that?
Bigger tyres, lower rpm, but more rolling resistance, potentially worse fuel economy?
Taller 5th gear, better fuel economy at highway speeds.
What would be the effect of putting on the bigger tyres aswell as getting the gearing ratio swaps?
Experiences and recommendations welcome.
Thanks!
EGR delete
CAT removal
Stage 1 remap
These have helped my fuel consumption somewhat and the power gains are noticeable. The mechanic who did the aforementioned works (whom I found via the Toyota forums) did say the CAT was completely blocked (no DPF on my model) so that could have contributed to the 5.5km/L consumption I was getting at highway speeds. Now I’m getting 7km/L on the 1000km trip from Inhambane to Joburg, which I’m pretty happy with as I got about the same with the V6 Fortuner. I do, however, get considerably better economy with the cruiser as a daily driver in the sand or the bush, the consumption really only starts to increase getting up over 110km/hr.
I don’t plan on doing any long distance heavy towing in the near future, so the obvious thing to do would be to do the 2nd and 5th gear change out. I saw someone mention on a forum that the longer 5th will drop the revs by about 400rpm. They then said, sticking on 285 tyres (presumably 285/75R15) would drop the revs at the same speed by 300rpm. A cheaper alternative to an expensive transmission opening job.
Sorry for the waffling but my question is basically: what do think of think of that?
Bigger tyres, lower rpm, but more rolling resistance, potentially worse fuel economy?
Taller 5th gear, better fuel economy at highway speeds.
What would be the effect of putting on the bigger tyres aswell as getting the gearing ratio swaps?
Experiences and recommendations welcome.
Thanks!
