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[VXL V6]

Yep, more than happy to sort out the manifold in advance and I have a spare one here. Will have to dig it out and see if it's a 3.0 or 2.5 though.

Kevin, If that's the one I swapped for a drilled and tapped one from you it is definately a 3.0 one. 

[Kevin Wood]

Yep, more than happy to sort out the manifold in advance and I have a spare one here. Will have to dig it out and see if it's a 3.0 or 2.5 though.

Kevin, If that's the one I swapped for a drilled and tapped one from you it is definately a 3.0 one. 

Ahh, yes, it probably is.

Kevin

[feeutfo]

3.2 is easier to fit LPG to as there is far less shite stuff in the way, no egr, no icv, no cruise box, no throttle cable all helps, and to my thinking it's better to convert as new a car as possible as you'll keep it longer and get better return on it. Although some don't agree.

Lag may be related to omega mapping as it's partially present on my current stock petrol 3.2. which is quicker than my previous 3.2 for some reason so there is nout wrong with it.

So my current thinking (although this changes almost daily as we are still not sure on the cause of the lag) is to go with stag again, try the latest updated kit and possibly fit better injectors if needed, possibly prins as the stag ecu will run them apparently...

[feeutfo]

...plus buy it before the vat hike on the 4th of Jan.

[Lazydocker]

Yep, more than happy to sort out the manifold in advance and I have a spare one here. Will have to dig it out and see if it's a 3.0 or 2.5 though.

I'm in 2 minds about the conversion. On one hand, if we have the opportunity to get the car on a lift and throw manpower at it I'm sure it will come together quickly. On the other hand, trying to do a conversion in a weekend is OK until something goes less than smoothly, as TheBoy's conversion proved. Then it turns into a nightmare. :-/

Kevin

Realistically, although it can be done in a weekend (We did Tunnie's in 2 and a half days) I would suggest 2 "sessions" for any fitting... First one to fit One end (front or rear plus pipe) second to do the other. That gives plenty of time for any little hiccups.

I still can't see how any more than 3/4 people can be an advantage... There's only so much space to work in

[Jim]

So whats the best kit to buy???

[TheBoy]

3.2 is easier to fit LPG to as there is far less shite stuff in the way, no egr, no icv, no cruise box, no throttle cable all helps, and to my thinking it's better to convert as new a car as possible as you'll keep it longer and get better return on it. Although some don't agree.

Lag may be related to omega mapping as it's partially present on my current stock petrol 3.2. which is quicker than my previous 3.2 for some reason so there is nout wrong with it.

So my current thinking (although this changes almost daily as we are still not sure on the cause of the lag) is to go with stag again, try the latest updated kit and possibly fit better injectors if needed, possibly prins as the stag ecu will run them apparently...

Do you remember a drunken discussion, over a curry, about which LPG kit? You said Prins, I said Stag?

I'm having doubts, as I am now suffering the lag since recalibrating

[feeutfo]

Well, IFIIK.  :-?

Vat goes up 4th of Jan, and we have both completely changed our minds in a couple of weeks.

It's been a few degrees warmer the last couple of days, +4 c? Made any odds?

Current thoughts are "maaaaybe" it's an amplification of what's already there. So any sign of it on petrol? Not even the slightest microscopic hint? Ie wot 3rd gear about 5k, ping off the throttle, does it "b-ber" a tad on the over run immediately after?, rather than just "berrrrr" tailing off smoothly as it should. On my old car that was quite pronounced on gas, along with jolt/lag during gear changes. A guy at Tinley tech said, without seeing it, it was a mapping issue and should be possible to tune it out, but clearly something has changed on yours.

Does tech2 give it a clean bill of health? I'm also guessing you'll have checked all that....


Bah, where getting nowhere with this are we. 

[TheBoy]

Well, IFIIK.  :-?

Vat goes up 4th of Jan, and we have both completely changed our minds in a couple of weeks.

It's been a few degrees warmer the last couple of days, +4 c? Made any odds?

Current thoughts are "maaaaybe" it's an amplification of what's already there. So any sign of it on petrol? Not even the slightest microscopic hint? Ie wot 3rd gear about 5k, ping off the throttle, does it "b-ber" a tad on the over run immediately after?, rather than just "berrrrr" tailing off smoothly as it should. On my old car that was quite pronounced on gas, along with jolt/lag during gear changes. A guy at Tinley tech said, without seeing it, it was a mapping issue and should be possible to tune it out, but clearly something has changed on yours.

Does tech2 give it a clean bill of health? I'm also guessing you'll have checked all that....


Bah, where getting nowhere with this are we. 

The big difference this time is....

Original calibration (with KW/LD), it was being gunned for a lot of the time (until it got a monk on).

Next calibration (with KW at Oxford meet, on way to McD), I was trying my utter utmost (and failing miserably) to give RobseyMV6 a run for his money around the bypass whilst KW was trying to calibrate.

This calibration, Mrs TheBoy was driving, I was calibrating. The car has a tramline issue, it was icy, and she was doing a Miss Daisy impression...

[feeutfo]

So whats the best kit to buy???

As discussed with TB and Kev over curry, and as TB has just mentioned, I was thinking of going for a prins kit, purely on the basis that it's considered the rolls Royce of LPG kits. Trouble is they refuse to sell it for diy fitting. Prof install only, and the front end kit is almost twice the price of stag.

Plus it's a total gamble if it will lag the same as a stag kit or not. So could well be a complete waist of money....

But suffice to say, we all know the stag kit well enough, it does a reasonable job for the money, but be aware you may have to drive around any minor hic ups, although my car had the worst lag when pressing on afaik..... Bottom line is we just don't know the cause, which is annoying when recommending to others.


.... I wonder if the guy who snapped up the prins kit off RobG has fitted it yet...?

[feeutfo]

Well, IFIIK.  :-?

Vat goes up 4th of Jan, and we have both completely changed our minds in a couple of weeks.

It's been a few degrees warmer the last couple of days, +4 c? Made any odds?

Current thoughts are "maaaaybe" it's an amplification of what's already there. So any sign of it on petrol? Not even the slightest microscopic hint? Ie wot 3rd gear about 5k, ping off the throttle, does it "b-ber" a tad on the over run immediately after?, rather than just "berrrrr" tailing off smoothly as it should. On my old car that was quite pronounced on gas, along with jolt/lag during gear changes. A guy at Tinley tech said, without seeing it, it was a mapping issue and should be possible to tune it out, but clearly something has changed on yours.

Does tech2 give it a clean bill of health? I'm also guessing you'll have checked all that....


Bah, where getting nowhere with this are we. 

The big difference this time is....

Original calibration (with KW/LD), it was being gunned for a lot of the time (until it got a monk on).

Next calibration (with KW at Oxford meet, on way to McD), I was trying my utter utmost (and failing miserably) to give RobseyMV6 a run for his money around the bypass whilst KW was trying to calibrate.

This calibration, Mrs TheBoy was driving, I was calibrating. The car has a tramline issue, it was icy, and she was doing a Miss Daisy impression...

...so did something change between the oxford calibration and the miss daisy calibration? Or was it just drifting out of tune because of the weather? The guy I was talking too re prins kit mentioned that fitting 8mill fuel pipe helps in cold weather, but I think we all already have that... Don't we?

[TheBoy]

...so did something change between the oxford calibration and the miss daisy calibration? Or was it just drifting out of tune because of the weather? The guy I was talking too re prins kit mentioned that fitting 8mill fuel pipe helps in cold weather, but I think we all already have that... Don't we?

My point was, the other calibrations were done by ragging the tits off it, and I could count the total lags on the fingers of one hand.

Calibrated at Miss Daisy speeds, the thing can't do a redline 1st to 2nd change without the engine falling out the bottom of the car.


The last calibration was done in 2 journeys over about 80 miles, the green line was moving all the time, depending on if it was a motorway cruise, going through Oxford, or the roundabouts around the A43.


The O2 integrators were flying around (as they do on pre DBW engines), but were in right ballpark for the condition, and idle and partial load o2 settings were constant-ish (pre DBW don't have the short/long term trim readings)

[TheBoy]

As to 8mm - mines polyflex, so I'd need Kevin Wood to confirm it was 8mm we used.

I'm running a multivalve, so borderline on a 3.0 at best, maybe the cold is reducing flow a tad?  Maybe the vapouriser isn't man enough either (though gas temp looks good when warmed up)

[feeutfo]

...so did something change between the oxford calibration and the miss daisy calibration? Or was it just drifting out of tune because of the weather? The guy I was talking too re prins kit mentioned that fitting 8mill fuel pipe helps in cold weather, but I think we all already have that... Don't we?

My point was, the other calibrations were done by ragging the tits off it, and I could count the total lags on the fingers of one hand.

Calibrated at Miss Daisy speeds, the thing can't do a redline 1st to 2nd change without the engine falling out the bottom of the car.


The last calibration was done in 2 journeys over about 80 miles, the green line was moving all the time, depending on if it was a motorway cruise, going through Oxford, or the roundabouts around the A43.


The O2 integrators were flying around (as they do on pre DBW engines), but were in right ballpark for the condition, and idle and partial load o2 settings were constant-ish (pre DBW don't have the short/long term trim readings)

Yep, understood the differance in calibration conditions, see where your coming from... but what made you re calibrate again for miss Daisy in the first place? Thinking about it, Iirc, did I read something changed after/during certification? Or something like?

[feeutfo]

As to 8mm - mines polyflex, so I'd need Kevin Wood to confirm it was 8mm we used.

I'm running a multivalve, so borderline on a 3.0 at best, maybe the cold is reducing flow a tad?  Maybe the vapouriser isn't man enough either (though gas temp looks good when warmed up)

I'm fairly sure it was 8mill tbh.