1HZ Towing
Submitted: Thursday, Jan 11, 2007 at 09:18
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j100
Looking at towing a 2.7t caravan with a 100series toyota 1hz motor and am a little concerned that I may be asking a bit much of the vehicle
Would appreciate any observations/experiences from others who have done or are doing the same
thanks
Reply By: Max - Sydney - Thursday, Jan 11, 2007 at 16:48
Thursday, Jan 11, 2007 at 16:48
Hi J100
We drag a 1.5 t pop top with our 80 series 1HZ. Like Len W, I get fuel consumption in the range 16 - 20. However, I have had a couple of head wind experiences, which can take it up to 21. Eg, last week we had strong NE winds for about half the way from
Adelaide to
Sydney - especially on the
Hay Bl**dy Plains. It was a struggle to hold 80 k, and I had to drop to 3rd on mild rises to keep at that.
I reckon with another tonne and a full height van, I'd be looking for a turbo just for the head winds. Uphill is a matter of anticipation, using your gears, patience and letting others past when you are leading a queue, but long runs into the breeze really stretch the friendship!
Max
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Reply By: keepingitreal - Thursday, Jan 11, 2007 at 17:53
Thursday, Jan 11, 2007 at 17:53
Have a 100series 1hz (however
mine has turbo and intercooler). Iam constantly towing heavy trailers 2.5 - 3 tonnes and the wagon loaded up also,and i have absolutely no dramas. Fuel consumption about 12l/100 upto 16l/100 on heavy hauled long hills etc. These consumption figures are for long hauls. Power is not that big of an issue, only on really big hills and even then it holds its own. I am considering putting higher ratio diffs in for better fuel consumption (get my revs doen to around 2000-2200 @ 100km/h). I hope this helps. Definately makes a difference with turbo and intercooler, make sure you fit a EGT gauge though. I drive to
mine ,however it never exceeds 600deg C. Mainly sits around 500c when towing and edges to 550-600c on long hills at heavy loads. Regards Kirsten (NSW)
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Follow Up By: Ian from Thermoguard Instruments - Friday, Jan 12, 2007 at 11:26
Friday, Jan 12, 2007 at 11:26
Hi Kirsten,
Where's your EGT sensor - upstream or downstream of the turbo? If it's downstream, I'd suggest your pushing it too hard - I wouldn't exceed 550 C at the absolute most. If it's upstream, you probably have the potential to increase the fuelling a bit more if you want to - so that EGT gets up towards 700 C on the long steep slopes. Please have a look at this page on my website for my opinions on safe EGT levels..
By the way, what did you decide about your boost gauge tapping point?
Ian
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