Digsy

Why are we discussing this.....again?

I could ask at work tomorrow. We've got quite a lot of experience with structural bonding of carbon to aluminium.

10,500,000.00 MILLION DOLLARS wow! Who is the money coming from? Doctor Evil?

If its the orange oil light then its oil level, not temperature. It means your alternator is about to give up. The other two sensors can't function correctly if they are not getting a correct voltage feed, so they throw up spurious errors when the alternator is about to go. When my alternator went, the oil level light came on days before the alternator actually failed.

That's not entirely true. The flywheel is there to smooth out the torque impluses before they get to the transmission. If you consider that the flywheel is rotating at an almost constant speed, then the further towards the front of the crank you get the worse the torsional vibrations are. If you "lighten" (read: reduce the inertia of) the flywheel then you allow some of the crank torsionals to "leak" past the flywheel and into the transmission. This why a lot of people who do this kind of mod report a lot of transmission noise afterwards. Just being picky, although I use the word a few times in the article above, the function of the pulley (and the flywheel for that matter) in the 2JZ has nothing to do with "balance" - just dampening or smoothing of torsional vibrations. As far as balancing goes the 2JZ (like any other inline 6) is 100% internally balanced. Certain engine layouts do sometimes have balance masses added externally to the crank pulley and flywheel: Inline 3's, V6's and cross plane crank V8's, for example.

I hate to labour the point but saying the pump flows 20gpm is meaningless unless the supplier also states at what backpressure, or supplies a flow / pressure curve. When only a flow is stated it is usually at zero backpressure, which is not what you will get when you plumb it in. The total system backpressure from a long engine with a U-flow cooling system like the 2JZ, plus the additional pipework running to the rear of the car and back will probably be pretty high. I know a bit about pumps, but I'm less hot on radiators. Can I ask what you stand to gain by running a rear mounted rad?

Can you post some more details of the pump? I've done a lot of work with electric water pumps (EWPs) in the OEM world. Sizing them is very difficult and engines that use them as the primary water pump usually have low backpressure coolant systems designed around the pump. With its long block and U-flow coolant layout, the 2JZ will not fall into this category. Many mechanical water pumps are sized for the "hill climb / trailer tow" kind of test where you have a high amount of heat rejection into the coolant relative to the engine speed and vehicle speed (and hence water flow and airflow through the radiator). This means that a fixed speed mechanical water pump is often oversized for the peak power / max speed condition where you have maximum coolant and airflow. This is where in a road car some efficiency gains can be made by using a water pump that can offload itself. At a rough guess the stock Supra pump will probably flow about 200-250 litres per minute at full chat. Racing, I suspect, will be closer to the latter case, so you could possibly get away with a slightly smaller pump. Cars have raced at LeMans using twin Davies Craig pumps (max flow rate 100 litres per minute / 22gpm each). I think that's more in the ballpark. However for drifting I guess you will be spending a lot of time at high revs but with not much air going through the radiator (unless you are using fans), so you want as much coolant flow as you can get. I suspect that sticking with the mechanical pump might be just as good an option as an EWP. Looking at their website, I see that Meziere do much larger pumps (up to 55gpm). It would be interesting to see how that drops off with system backpressure (the max flow rate will probably be stated at zero backpresure which is an unrealistic case). In reality under all operating conditions you won't get the maximum flow out of the pump.

Barmy. http://uk.news.yahoo.com/skydiver-aims-land-without-parachute-000521624.html My favourite comment on Yahoo! about this story was "I supplied all those cardboard boxes. I got them when I ordered a pen from Amazon."

Happy birthday, Dude! Hope Clare is spoiling you rotten See you tomorrow!

I hate to go all revisionist history/multicultural on you but let's not forget that some of the brave pilots and crew were from other countries, including Australians, Canadians and New Zealand....ians.

...and Star Wars is my second fave film of all time Have you noticed that a few lines of dialogue for the SW trench run scenes is lifted almost directly from The Dambusters? [/anorak] Hopefully that doesn't mean that the new Dambusters film will have JarJar Binks in it...

...and the range to the dam was judged by lining up two pins on a wooden "coathanger" sight with the towers on the dam, although there was a documentary (BBC I think?) a few years back that suggested the bomb aimers found them too awkward to use and rigged up something else instead. Its a terrific mix of ingenuity, engineering and bravery against all odds, which is why its my favourite film of all time.

Yeah, I know. I was just wondering whether that was the technical reason why upkeep is usually referred to as a mine, or if there was another reason?

In most of the stuff I've seen and read about the dams raid the bouncing bomb is referred to as the upkeep mine - ie. not a "bomb" at all. I've always wondered why this was. Maybe because for most of the attacks it was designed to sink adjacent to the dam wall and explode underwater, a bit like a limpet mine attached to the side of a ship?

On the other hand, if you love the hole romance thing, best to call tonight off because all that stops after you get married

Impressive :-)

night

I reckon it'll be the oil level sensor in your case then

The oil level warning light coming on for no reason is also sometimes the first symptom of a knackered alternator.

They are also a way for large OEMs to get their fleet average CO2 figure down to avoid having to pay large fines.

Is it the one where the guy turns up to fix the housewife's washing machine, but doesn't have the right tool. Or so he thinks! Hope you get a good contact dude. BTW. How can I get a CS3 DVD?

If its a code 42 it will come right back though. As stated above verify which code it is and then if it is a 42 there are a couple of options to fix it. If its something else then there will probably be a way to fix that, too.

Place your bets for a code 42...

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