Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[feeutfo]

Right, some progress! He is out of the country this week but we should be chatting next week. He also has a new vaporiser and injector set that may be more suitable, although the vaporiser will be close to its limit so would be best suited to 4 hole tanks. I may well be getting a set to trial

[feeutfo]

Some thoughts while we wait.

Re LPG set ups generally, why is there no return fuel line as on a petrol set up? Gas temp I guess? Or something to regulate fuel pressure spikes? Such as those seen when throttling off from Wot...? If I've understood some of the data logs correctly that is.

[Kevin Wood]

Some thoughts while we wait.

Re LPG set ups generally, why is there no return fuel line as on a petrol set up? Gas temp I guess? Or something to regulate fuel pressure spikes? Such as those seen when throttling off from Wot...? If I've understood some of the data logs correctly that is.

Gas in tank is 6-8 BAR. Once you've dropped it to 1 bar it's tricky to return it  to the tank.

There are returnless petrol injection setups these days too. Works OK if the ECU is compensating for fuel pressure (as it does on an LPG system).

Kevin

[feeutfo]

Some thoughts while we wait.

Re LPG set ups generally, why is there no return fuel line as on a petrol set up? Gas temp I guess? Or something to regulate fuel pressure spikes? Such as those seen when throttling off from Wot...? If I've understood some of the data logs correctly that is.

Gas in tank is 6-8 BAR. Once you've dropped it to 1 bar it's tricky to return it  to the tank.

There are returnless petrol injection setups these days too. Works OK if the ECU is compensating for fuel pressure (as it does on an LPG system).

Kevin

Theres an omega for sale/sold on here with LPG, pic under the bonnet shows some extra piping to what you thought mite be a pressure relief valve or similar...? Worth persuing?

[feeutfo]

This one, gizmo by the bonnet switch...?

http://www.omegaowners.com/forum/YaBB.pl?num=1290791269

[Lazydocker]

This one, gizmo by the bonnet switch...?

http://www.omegaowners.com/forum/YaBB.pl?num=1290791269

I would have thought that was a MAP sensor like ours has, just slightly bigger 

Must confess, I was seriously tempted by that car but did think that the conversion looks a little untidy, with pipework everywhere :-/ :-/

[Kevin Wood]

This one, gizmo by the bonnet switch...?

http://www.omegaowners.com/forum/YaBB.pl?num=1290791269

I would have thought that was a MAP sensor like ours has, just slightly bigger 

Must confess, I was seriously tempted by that car but did think that the conversion looks a little untidy, with pipework everywhere :-/ :-/

Indeed. It's the MAP/Vapour pressure sensor. Looks like it started off a nice neat install and then they just chucked rubber hoses at it. Maybe they were running out of time?

Could easily be tidied up, though.

Kevin

[Lazydocker]

Right... Just spoken with Teilo briefly and will be chatting again later today/tomorrow.

For a V6, Stag 300 Plus front end kit should come in (and this is an estimate at the moment so not a firm figure until we finalise the kit contents) at no more than £350+VAT. This price may vary slightly for reasons I will go into in a minute. That will be a complete front end kit for a V6.

He has changed both the reducer and the injectors supplied with the kit now for more stable models.

The standard reducer will be operating pretty much at its limit (around 230bhp with a 4 hole tank) so we may have to use double reducers (like the OMVL R90e I think, although that's for a mixer system) for better stability. These are, obviously, a little more expensive but should still stay close to the £350 for the whole front end kit. Trouble is, they aren't in stock yet and will be a few weeks.

Injector wise, they're still 3ohm injectors like the red Valtek ones most of us have but flow better. He says that if we're running 3mm injectors on the Valtek then 2.5mm on these new ones will be OK. Hopefully I'm going to get hold of a set to try out as a replacement for mine but without changing the Vap... Perhaps we'll be able to have a look at the Hants meet

So... Tank options. I would recommend 4 hole tanks in light of what has been said about the vaporiser, although I will mention the High Flow Multivalves to him and see what he says. 80L cylinder is the best fit for a saloon boot, if you can spare the space. If it must be a vertical toroidal then, being single hole, I think you'll need the double reducer. For estates, there are 4 hole, full toroidal tanks on the market

4 hole tanks are slightly more expensive than single hole models, but we aren't talking megabucks here... Probably around £40-50.

More information will follow

Incidentally, he has converted a V6 Omega (although I didn't check on engine size) with both the old kit and the new kit. They managed to tune it out and get it running fine on both :-? :-? Perhaps it was a 2.6/2.6, which I know makes a big difference as Johnnycboy's Albs' one runs fine with a set up that wouldn't on my 3.0

[sassanach]

i use an omvl r90e and a 100l tank on mine, as the space you save with 80l tank is'nt worth it.

[Lazydocker]

i use an omvl r90e and a 100l tank on mine, as the space you save with 80l tank is'nt worth it.

The thinking with the 80L is that we know they fit nice and easy... I've got a 90L, which is the same diameter as your 100L but same length as the 80L and it was a bit of a PITA to fit. Also, without S/L suspension there are some concerns over the extra weight

[feeutfo]

i use an omvl r90e and a 100l tank on mine, as the space you save with 80l tank is'nt worth it.

The thinking with the 80L is that we know they fit nice and easy... I've got a 90L, which is the same diameter as your 100L but same length as the 80L and it was a bit of a PITA to fit. Also, without S/L suspension there are some concerns over the extra weight

How much agro are we talking for a 90 litre? I presume removing the Bose shelf etc?

[Lazydocker]

i use an omvl r90e and a 100l tank on mine, as the space you save with 80l tank is'nt worth it.

The thinking with the 80L is that we know they fit nice and easy... I've got a 90L, which is the same diameter as your 100L but same length as the 80L and it was a bit of a PITA to fit. Also, without S/L suspension there are some concerns over the extra weight

How much agro are we talking for a 90 litre? I presume removing the Bose shelf etc?

If going for a 90L I'd probably say you may as well have a 100L. It would be the same diameter, just the full width between the turrets.

For ease... Remove Bose shelf etc, then not too bad. You'll probably have to drill new mounting holes in the frame too (which I had to) as the ones pre-drilled will be in the wrong place to fall nicely underneath. You'll see what I mean at the meet if you want, you can have a quick eyeball under mine (90L)

If you go 90/100L you will lose the ability to "through load" altogether (unless it's something very flexible ) whereas ISTR that the 80L Kevin has leaves a little  space to load through

[edit]Should also add that there's a little "void" between the seat backs and the tank, which I find a useful spot to keep some odds and sods like spare crank sensor etc [/edit]

[aaronjb]

All sounds good there LD! Though I think I'd definitely be going for a double reducer - I don't like the idea of running things with very little headroom, but that could just be me being overly cautious

So... Tank options. I would recommend 4 hole tanks in light of what has been said about the vaporiser, although I will mention the High Flow Multivalves to him and see what he says. 80L cylinder is the best fit for a saloon boot, if you can spare the space. If it must be a vertical toroidal then, being single hole, I think you'll need the double reducer. For estates, there are 4 hole, full toroidal tanks on the market

That bit is good news indeed

[Lazydocker]

All sounds good there LD! Though I think I'd definitely be going for a double reducer - I don't like the idea of running things with very little headroom, but that could just be me being overly cautious

So... Tank options. I would recommend 4 hole tanks in light of what has been said about the vaporiser, although I will mention the High Flow Multivalves to him and see what he says. 80L cylinder is the best fit for a saloon boot, if you can spare the space. If it must be a vertical toroidal then, being single hole, I think you'll need the double reducer. For estates, there are 4 hole, full toroidal tanks on the market

That bit is good news indeed

Yep, you're being a bit overcautious If it's proven to be sufficient then it'll be fine. Bearing in mind the 3.2 was 217bhp when new, you've probably lost a few anyway unless you've tuned it

I know about the Estate tank options because I was am looking for a good example at the right price (and have been for about 2 years ) with a view to converting. The only issue with estates is the range, unless you're willing to raise the boot floor by up to 50mm (easily done with some baton and ply) I think the biggest tank that'll fit is about 55L :-/

[Kevin Wood]

If you go 90/100L you will lose the ability to "through load" altogether (unless it's something very flexible ) whereas ISTR that the 80L Kevin has leaves a little  space to load through

Yep, and useful it is too, I find. At least I can still buy bits of wood and pipe, etc. and load them.

Kevin