Rangie46

have you calibrated the wide band in fresh air? on my lc2 you have to calibrate the sensor in fresh air before fitting and tuning

as per title guys a quicky for the experts, would the 4.6 gems ecu run the ford gen 1 coil packs as we use on megasquirt ?

best way imho is megasquirt it, i did the same with a 4.0 gems into my 90 that was a 200tdi, fridge has basicly listed what needs to be done, i bolted a disco v8 lt77s with adapter to use defender gearchange to the original lt230( gearstick in correct pos), then bolted in engine and welded in new engine mounts, rest is all nuts and bolts work, megasquirt and it will go like stink

Mine does the same but I think it is the usb to serial connection, the usb plug is a bit loose so I tape it down to the laptop

Cheers guys it seams that who ever did the rebuild on this 4.6 used the 4.0 pistons aswell, as I cannot see any difference between the spare 4.0 pistons I have and the ones that are in the block, and I remember seeing a pic somewhere showing the difference in the dish of the 4.0 and 4.6 pistons which is easy to see, so looks like I have had right bargain, hopefully the block will pass the preasure test as I can't see anyone putting money and time into a rebuild of a knackerd block, will update later next week once I test the block.

Picked up another rv8 off eBay the other day a 4.6 bottom end for 100 quid. ( think I have an addiction) Started to tear it down today and it looks like it's had a rebuild resently, as you can see from the pics below the conrods have been punched to mark their location and the bearings look brand new hence the question, from the pic below I think the main bearing maybe +10 oversize can any one confirm? Still need to pressure test the block but even if it's porus I can still put the crank and rods into the 4.0, I also have a spare set of 4.0 Pistons should I use these on the 4.6 rebuild or stick with the 4.6 ones?

To use auto tune in TS you need the full paid version,but it really is good well worth paying for, if you have a wideband sensor and controller then wire it up, but dont get it wet ie dunk it in a river or you will kill it, didn't take me long at all to get a real decent tune on mine using auto tune in ts and a lc-2, it will also work with a narrowband too but just takes longer.

Thanks guys, Bowie once again what would I do without you ? Think I'll start an install thread as I will no doubt have a load more questions.

Going to add lpg to the 4.0 and went and picked up a Blos carb today, still have a few more bits to get and also get the ms modded for table switching, but I have a question about the Blos, will one be enough? as you can see from the pics below its a lot smaller than the diameter of the intake which looks like quite a restriction.

cheers bowie thanks for all your help, went for a little drive earlier and managed to get ts ve analyse working again, and I now have a ve table that looks half decent and she goes so much better :i-m_so_happy:had to start with niges base map again as my old table was wayyyy to rich here's my new table, still needs work but shouldn't take to long now with the lc-2

search for a thread by bowie called target afr tables with a wideband lc1, I use his afr table at the bottom of his thread myself so a big thank you to bowie, I run at 13.5.1 at idle as I find if I go leaner it starts hunting don't know if that's right or wrong as I'm still learning and reading about all this tuning

well what a tit am I fitted new adjustable fpr and couldn't get a reading on the gauge so I thought I must have been sold a dud, took gauge off and attached it to the compressor and it works right must be a prob with the pump, but it was brand new so I took the seat out pulled the pump out and, well the pipe that I had to extend on the range rover pump to fit the 90 tank had disconnected, can't believe it actually ran let alone drove, so reconnected it and now I have pressure time to finally get it all tuned in nice, big thanks to everyone and dave w you got it bang on mate, shall post my new table once I have done a little tuning.

cheers dave the gems does have a vacuum link for the fpr which I have a T connected to for the map sensor, but the fuel pressure is some thing i didn't think of, something to look at as i don't think its the pump as that was brand new from nige when i got the kit. cheers.

bit of an update, as it was me birthday last weekend swmbo got me a lc-2, but turner studio has started playing silly buggers since installing the update and keeps going offline when trying to use ve analyse, so ive gone back to datalogging and using MLV, but still even with the wideband I am still getting high numbers on the ve table as can be seen below, I can only guess that I must have some sort of exhaust leek somewhere so I think its time for a complete new exhaust unless you guys have any other ideas?

yep and a wee bit on the washer aswell