Performance specs for toyota 2H engine

Thanks Chris,
No intercooler fitted and yes, the engine gets hot when towing up hills on a hot day but otherwise is acceptable.
I guess there will be a fair bit of loss through the auto transmission so am not sure what the Hp should be at the wheels
Ralph

Our D4D Hilux that was chipped put out 86 kilowatts at the wheels with large mud tyres, the real output from the engine was around 145 kilowatts.

A rolling road type dyno can only be used to get a base line, it depends what correction factors are used.

So yes an engine that puts out 101 kilowatts at the flywheel with no auxiliaries may only do 50 to 60 kilowatts at the wheels.

If you had a Landcruiser putting out 40 kilowatts at the engine then you would no about it.

I would say the 40 kilowatts he is seeing at the wheels may relate to about 80 to 90 kilowatts ate the engine

Normal losses can be as high as 50%. So that would give you 90kw which would be about right.
Cheers Pete

Up to 50% maybe if your running 42" tyres I read somewhere once it's around 17 to 23% power loss at the rear with standard tyres anyway I think you need to get the motor checked out your way down on power as you know .I don't reckon inter coolers are the be all to end all I took my DTS inter cooler off my GQ and it helped the running hot issue put a snorkel on a couple of months later and it ran even cooler, gained power and up to 1ltr per 100k better on fuel

Thanks for the info. Have recently fitted a new rad as the old one was showing a few leaks. New rad made no difference to overheating. The custom built rads seem to be quite expensive. Do you know of any reasonably priced after marker radiator suppliers?

I paid about$400.00 for a radiator in Darwin for my 1HZ troopy. It was called a "tropical radiator" and the difference is very noticeable. No matter what I do the needle doesnt go pass the middle on the factory temp gauge. Have amate who also put one on and he reckons its the ducks guts as well. No more water temp problems and piece of mind when driving/towing on the hot NT roads.
cheers

Also forgot to mention that a 3 inch exhaust helps extract more power. 2 & 1/2 will get by but 3 inch better.
cheers

Sounds good. Willl try to search out 'tropical radiators'

Hi dan,
Can I fit a supercharger and a Turbo?
Seriously, I'm reasonably happy with the output as it is, but have a minor issue with cooling when towing which I will sort out .
I cruise at 2,000rpm over combination dirt and bitumen on 33" tyres which is about 110km/ph and get 7km/lt (14.29lt/100km) fully loaded with 180lt fuel, 120lt water, plus camping equipment.
From what I have read on the forum and my recent experience with a new 2010 Hilux (5km/lt) to Bremer Bay and back, I think the old 60 series is doing ok.
Ralph

I find your cruise speeds and rpm to be possibly flawed. My 1HZ turbo runs 33 inch tyres and at 2000 rpm is doing 80klm per hr. 100kph it is doing 2500 rpm.
Both these figures in 5th gear with standard diffs. Let me know when you check as I would be interested in the figures.
cheers

Hi Bigfish,
Am estimating speeds as tyres have changed ratio and I havn't recalibrated the speedo.
The error is 7.27% so if speedo says 100kph then am actually doing 107kph.
Will take the old girl for a run and see excactly what's what for you.
Ralph

Bigfish..ok I lied!!!
Speedo needle is just to the left of 100kph mark when doing 2000rpm so lets say speedo is reading 98kph, add the 7km for error and you have approx. 105kph.
I have a 4 speed auto with lockup and standard diffs.
Ralph

Thanks for reply ralph. I am astounded that there is a 25kph diff between the same motors at same revs both in overdrive. Mine is a 97 model troopy
Anyone shed some light on this?
cheers