classicswede wrote:
I'm still not conviced about no gas temp and pressure correction with the ECU setup you have chosen but it looks like it is working well enough.
Wrong, it works actually brilliantly.
But you do seem to have answered your own question so I'm not really sure what you're trying to say here?
I did have another option with all this, I could have put a piggy back on the 14CUX and cobbled a Megajolt onto it in place of the distributor.
With this type of hash up the piggy back may well have referenced gas temperature, but would it have been better?
I think not?
Only Mark Adams can properly map a 14CUX, so if it's out on petrol, it's going to be out on gas, until I pay Mr Adams way too much money to tweak it.
Things have moved on & there are better systems out there that puts the mapping back in my hands.
Remember this is a 260hp TVR, not an old warn out Disco getting converted at the end of it's life.
It's a 1000kg thrilling high performance sports car, it deserves better than what the average LPG fitter would put on an old Range Rover Classic.
With a system that moves on from twisting second hand petrol injector durations that are completely wrong for LPG in the first place, the Canems Duel Fuel engine management system allows us to create the perfect fuel and spark tables from the outset.
This does however require the skills of an experienced engine mapper and a rolling road, the type of skills most LPG fitters lack because their compromised piggy back ECU systems do most if not all the petrol signal twisting for them.
Performance engine mapping is an art, trust me.
classicswede wrote:
Looking through your pistonheads thread I'm curious as to when you are going to complete the tank installation.
You clearly failed to read the whole post, there lots of pictures of the completed installation towards the end, including the bespoke 8 gallon petrol tank fabricated by Keith Woods, and the twin 30 litre LPG tanks.
The only thing that remains is for the tank system to be professionally trimmed in matching boot carpet making it virtually indistinguishable from a standard petrol Chimaeera even with the boot lid raised.
classicswede wrote:
It would be a good idea to put the vent pipes on asap just in case they are needed, more critical after your mods to the valves.
???? Vent pipes are in place, what makes you think they aren't?
Do you really think we would do all this & not sort the venting?
classicswede wrote:
You also need to sort the fill pipe so that it exits through the floor to stop water getting in or gas as you fill.
More????? What on earth are you talking about?
Why would I cut a hole in my floor, you may do this on an old Jag, but not on my car thanks!
The LPG filler is where the petrol filler was, it's a beautifully neat integrated solution that requires no hole cutting or other crude invasive treatments to my TVR.
In all my years around TVRs I have never seen or even heard of a TVR taking on water through the petrol filler cap, it' resides under the boot lid for heavens sake!!!
All in all Mr "classicswede" (& I don't mean to be rude) I recommend you re-read the post on PistonHeads properly my friend.
It's all there!