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So that you can have infinite position cam timing over whatever angle the system allows. I know on one of the newer Ford engines, a friend of mine is seeing 26bhp gain over the mid-range by accurately setting cam position for load/rpm.

In "ECU configuration" tab on the top right of the software screen, 3rd up from the bottom is "output channels", set Vtec Switch to say Aux3. This is a switched earth channel. Then under "additional maps" got to Vtec switch and configure the switching points to suit.

I dunno, got me in a fluster pal!

Cylinder pressure ideally..

I thought they were "piggyback" units?

But its not an optional adjustment from Quaiffe, is the point being made.

Even then though, unless its on an individual cylinder basis, its not going to be ideal, detonation could/can still go undetected or take place unless you can trim individually. Coolant paths, intake tracts, mechanical efficiency etc can all vary from cylinder to cylinder, making one cylinder...

Plate type LSD's are inherently noisey..

You can run leaner than stoich under "cruise" conditions. Say 15.5-16:1 AFR (depending on the engine, crown design etc), the limitation is misfire due to unstable combustion which occurs typically quite a bit leaner than 14.7. Lambda 1 is used widely in OE calibration as multi-way catalytic...

I supply and use Plenty of Emerald ECU's. No problems at all. Definately recomended.

Tests on F4R's...

top right and bottom left are mine..APD

yeah I agree..thats why I said within his own ability...i.e on the cheap. If you've got to pay someone to do it, then yes it isnt worth it unless leakage is serious...

again it depends on your interpretation of "doesnt need doing". I can pretty much guarantee if you do a leak down test it will show leakage past the valves. It may be fine, but its not 100percent right. Depends how anal you are I guess.... Road car or race car...I like everything to be as...

It may be "fine", no-ones disputing that. Theres a difference between "fine" and "spot on" however... As I said, it depends how far YOU want to go, and how much effort you want to put in.

All JC5's have a bolt in retainer plate for the diff. Williams, Lagunas, 172's, 182,s....

With a leakdown tester (without sounding like a t**t!) Basically the cylinders are pressurised with compressed air, and percentage leakage is measured. You can then isolate leakage by physically listening for where its coming from...either past rings, past inlets or past exhaust valves...

edit* gearbox oil change.

A leak down test would give you a far better indication of engine condition than a compression test. I would at least remove the head and have valve seats freshened up, and valves cut back and lapped back in. Better still is also remove pistons, hone bores, and fit new rings. Just depends...

ALL JC5's have bolt in diff. JB3's use a circlip, which can pop out. However the retaining plate can be retro-fitted to JB3's quite easily. The reason they have more common failures is due to them being from an older vehicle, which has likely been ragged to death for 15 years, without...

Yeah T5 is a RWD gearbox, used alot in american mustle cars, more famously over here the sierra cosworths. I think the TVR one were the same, but the bell housing is different. Its the same pattern the rover V8, as we've built a 5.6l one for my mates Dax Rush and using a TVR sourced...

Im planning on a 340 bellhousing onto a T5 for my F4R powered Kitcar...

www.williamsclio.co.uk www.clio16valver.co.uk

Im from Dalston. You need to speak to Avanti direct www.avanti-motorsport.com

Avanti use ZF plate diffs. These are very good units. More expensive than gripper, but alot more adjustment on them if your into competing. Whereabouts in Carlisle are you from pal?

get cracking on the organisation then lol

Just to confirm, im not offended easily, least of all by a group buy on an internet forum, do what is easiest for you lot... :) it seams like its more hassle than its worth for everyone concerned tbh.

I learnt everything I know from American Chopper....

???

is it a honey mustard plenHAM?