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[CaptainZok]

I would think it would be fine unless you wanted to really give it some large... in which case I suspect you'd want to be running on petrol anyway!

Yeah, but running engines lean at wide open throttle is not good, and remembering to switch to petrol when the red mist descends is not going to happen .

Will ask the chap what he reckons. I guess given the power drop on LPG it'll be around the 200 BHP mark anyway.

I could dust off my wideband lambda sensor to set it up, I guess.  :-/ Anyone got an old Lambda sensor that I can butcher for the connector to wire it up?

really disaapointed as the kit didnt turn up today, delivery van broke down

Hopefully it'll arrive tomorrow then you can play at the weekend

Fingers crossed.

Kevin

Got a knackered one lying about somewhere, think the wire is broken going into the lambda.
Yours if you want it.

[Paul M]

With the bigger tank is there any prospect of folding down the rear seats and fitting any long objects in the car or does it cover the rear seat aperture completely? Just thinking about when I have to go and buy long bits of wood, etc....  :-/

Cheers,

Kevin

For some things yes, I have a 3 inch or so gap - however for long pieces of wood a roof rack works better

Mine is 100L (carries 80L of LPG) which I think is the biggest you can fit in there, it's pretty close to both the wheel arches on the sides and the parcel shelf at the top. No chance of using the boot aperture. Personally I much prefer it like this, not sure what it's like down south but here the availability of stations isn't great. My boot is empty 99% of the time, apart from when going snowboarding with my mates or going on an inter-city partying trip. Both times there's still plenty of room as it's mostly clothes (and in the latter case beer) in there. I have a pair of quick-detach VX roof bars for the snowboards.

[Paul M]

i spent 4 hours and five attempts with a cnc punching mc to produce a bracket for my omvl vapouriser which used the cruise control mounting studs!!!!

I moved my coolant pump!

That is where mine is located, and I had a similar issue with it being mounted where the cruise module was to be installed when I decided to add cruise. Took a bit of extra effort but I got it in there without disconnecting the gas or water pipes, had to move the aux pump but that was an easy enough job as there's a fair bit of slack in the pipes.

[Paul M]

I would think it would be fine unless you wanted to really give it some large... in which case I suspect you'd want to be running on petrol anyway!

Personally I would err on the side of caution with this, you'll end up melting a valve or similar if it is allowed to run lean for any length of time. The way mine is set up I can bounce it off the rev limiter before shifting up and there is no discernible difference compared to petrol. I'm sure there is a small measurable difference, but it's close enough that I don't notice. I do flick back to petrol when I really want to wring out that last few BHP but that's pretty rare.

I should add that if you're setting it up with an AFR on the wideband lambda it shouldn't be so much of a worry, as you can bounce it off the limiter with the foot on the floor in say 3rd gear, and if it doesn't go lean with the right mapping under those circumstances it'll be fine.

[Taxi_Driver]

tank is supposed to have a capacity of 63 litres but will only fill to 80% running around town the tanks range reduces to approx 165 miles

You'll have to hope the level valve becomes sticky  

My ex veccyC had a sticky valve and 50% of the time would let you fill the tank 100%  8-)

I was a tad concerned about this to start with......so i visited an lpga installer and told them the prob.....they said if i really wanted they could change the tank......but apparently it wasnt really a problem.......unless you parked the car on a hot day in the sun just after 100% filling the tank......then they said all that would happen was....if the gas expanded too much....was a big hiss as the pressure relief valve opened releasing some of the lpg to get the pressure down.

[Kevin Wood]

I would think it would be fine unless you wanted to really give it some large... in which case I suspect you'd want to be running on petrol anyway!

Personally I would err on the side of caution with this, you'll end up melting a valve or similar if it is allowed to run lean for any length of time. The way mine is set up I can bounce it off the rev limiter before shifting up and there is no discernible difference compared to petrol. I'm sure there is a small measurable difference, but it's close enough that I don't notice. I do flick back to petrol when I really want to wring out that last few BHP but that's pretty rare.

I should add that if you're setting it up with an AFR on the wideband lambda it shouldn't be so much of a worry, as you can bounce it off the limiter with the foot on the floor in say 3rd gear, and if it doesn't go lean with the right mapping under those circumstances it'll be fine.

You're right that running lean is bad news, especially in a heavy car like an Omega which can put a lot of load on the engine for long periods of time. Anywhere else on the map you can do what you like to the mixture without killing the engine if you're sensible but if you're going to have your foot hard down for more than a few seconds you need to see a comfortably rich mixture as that will keep the temperatures down.

If you hit the rev limiter the wideband reading will go all over the place as the ECU cuts the injectors, but I mapped my Westfield on public roads using a WB and it was a piece of cake. You could accelerate with the hammer down, watching the RPM and lambda and make a mental note of what needs adjusting at what RPM. If it goes lean come off the gas and add fuel. Tweak it with a laptop and repeat. Plenty of time to take it all in with just under 200 BHP in a 650 kg car, so an Omega should be ok

You can of course datalog it and then look through the logs but I found doing it by eye easier, with a laptop on the passenger seat to tweak the map.

Kevin

[Jay w]

still not here and I am livid with the courier...they are so busy cos of the royal mail strike they can't keep up

the software that comes with the kit allows you to datalog and take snapshots that can be saved for reference and tuning, this is one of the things that swung it for me.

one query I have got, part of the wiring involves connecting up to the lambda, do I break into both or one?  I'm worried if I only do one and that bank is reading differently for some reason the other bank will be adversly affected.

[Kevin Wood]

I guess the Lambda depends on whether the SGI system had dual lambda inputs. If it's only got one you've just got to connect it to one of the sensors. There shouldn't be a huge imbalance between the two banks.

I assume it probably only needs the Lambda input for initial calibration / automatic mapping. Once it's set up the injector durations should follow the injector outputs from the OEM ECU so you will effectively be running the lambda corrections from the 2 banks independantly.

Kevin

[Jay w]

Good news....

The front end has arrived, it transpires the seller gets the goods sent direct froom his supplier, tank should be here next week.

The front end kit is where all the Q's were and looking through the instructions has answered them.

There is a second take off for dual lambda cars, this will give an accurate reading.

I am going to start a thread on the install, starting with the pics of the kit itself and contents