n00bus m@x1mus

Got one already Pete?

Not saying thats what you should use LOL but you get the idea that placement isnt critical.

innovate sell adapters that clip onto the tail pipe for an external setup like on a chassis dyno or a removable EFI tuning kit for tuning customer cars and stuff.. placement cant be thats critical if thats the case. They have there own heating element so its not a matter of needing the heat in the pipe. plus they got 5m of harness.

Yeah thats my means ;P

Oh i see it now.... some slight camera trickery Looks like the edge of the floor runs all the way to the outer guard. But your box is fitted right up the edge.

Did the XDs have sheet going all the way to the edge? Hmm, why bother to change?

This is how i did mine in the LTD, much the same as the other i guess but other side behind the spare wheel. The outside edge i used some 50x50x3mm aluminium angle and bolted it on thru the guard in behind the side bumper moulds, easy in an XF.

Good work bud... You reckon you could do similar tests with other factory pumps, like the E series and AU?? cos swapping the pumps out is fairly straight forward, and if you can score one cheap then its worth the upgrade by the sounds of it.

So im guessing that correct pinion angle is only desirable while at cruise so it gets even uni rotation at both ends and aids in wear of the bearings and balance issues of the tailshaft. External to that its not really considered at all... but rather disregaurded entirely to achieve the best senario for launch grip and applied torque to the wheels.

It rolls forward quite a bit. While you working on your angles pop your springs out and jack your diff up into the body, you will see how much it affects it. The only benefit i can see is that it keeps the tailshaft from smacking the tunnel as the diff goes up. If the pinion wants to climb the crown under acceleration then this will force the pinion angle skywards, the top arms prevent this and applies more torque to the wheels and im guessing that by making it squat in the arse it will add to the general rotation of the wheels forward aswell for more launch. But as i said before this fights against the logic of correct pinion angle as it forces the nose down and induces bind on the unis.

Hence were i get lost with the whole pinion angel science... its supposed to be the opposite to the gearbox right? Heres a diagram i copied once out of an SM mag.... So if the box is pointing say 2 degrees down to the rear then that means the pinion angle must point 1-2 degrees up???? but then every trail arm configuration wants to curl the diff forwards as it rises thus pointing it downwards right at the wrong time, when your unis want to give way the most they have more bind introduced into them because of this. Is this anyones elses take on the subject or have i got it completely wrong?

When u work out that tool post up your findings cos im going to need one soon too .

16 with DDs??? my imagination is going overboard

I like your style bruz... top marks, looks like a tradesman did it.

Au ones do yes. And ive had a look over the weight drop and while i havent removed anything yet you can see the rockers are thinner in there width, along with the lighter valves and conical springs it would be some good HP gains right there.

Or flip a car on its roof to pull the diff out with a forklift and a gas axe. Its like they think that the car one usefull part in it and they will just crush the rest. My pet hate was when some toss wants a stereo so they bust all the plastics out tear the door trims off and leave them lying in the dirt with the doors wide open completely destroying every part of the interior for a friggen second hand head unit.

So whats the go with a good cam for these things. I was perusing the usual sites for cam specs this arv and they seem to have a hell of a lot of choices for the ea-el range but most of them are just like the next. No real difference between them until u get to the last 3 or so on the list that are for mid-top end. And even then the lift is marginal... only around 25-30 thou more than the xr cam i got now.

I got a set of XH ute springs hoping that they would lower it without flipping leaves as they sat almost dead flat as it was with no load in the back and they are also mounted on brackets under the chassis rails, so if you mounted them up beside the rails like in an earlier ute they should drop it some more. I need to give it a try one day.

Cant fit the e series valves in with the rockers? Or is the guide the wrong diameter?

Yeah i was surprised to see it too steve. I had to weigh them just to prove i wasnt going mad lol. When u pick them up side by side you can really notice it. I winder if the au head has larger water jackets or something??? They look identical from the outside... only diff is the rocker gear and springs. Might have to dissassemble further and see where it all comes from. Comparing them against each other i would say doung a bowl job and a light shave on the au head would be the way to go being that u get the lighter (on the chain, maybe overall too) valve train with the same spec head as a tickford.

Oh and strangely enough the AU head weighs 4kg less than the EF head..... ????? Quite noticable when you pick them both up over and over again.

Alright heres some pics of the differences between an AU head and an EF tickford head EF chamber = 60cc AU chamber = 65cc Note the extra shrouding around the intake valve. AU intake AU exhaust EF Tickford intake EF Tickford Exhaust And measurements show that the valves are indentical in shape and size, where as the Tickford cam showed 0.055" more lift on the intake valve but same on the exhaust valve. Using a CR calculator it shows an increase from 9.7 to 10.3 if i use this EF head on the AU short without any shaving to true it up.

Started pulling down this au engine and doing some comparisons between it and the ef tickford head... some pretty interesting figures, but probably not what u would expect.

Yes ute, wagon, fairlane, van are all the same.... sedan is shorter by about 60mmish

Yep good pickup mate. Utes had non ABS for a long time after.