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Somthing worng with that if you are only getting 15 MPG, mine is doing 210-220 miles on 62 litres costing £33, 1992 Vogue SE 3.9 auto open loop LPG Stewart

Not sure what to make of this one, the fan works only on full or very slowly on II with the AC on! and not at all with the AC off. Also can only get cold air from the dash vents. It may also be worth metioning the black sphere thingy that has a vac line from the inlet attached to it has only the...

As above, leaking from round the diff quiet badly cleaned it all up but cant really tell if its form the drain plug or the diff gasket. The diff is silent and it does not seem to be coming from the pinion seal (no traces after it was cleaned off) the axle casing is very solid and free of rust...

And my personal experaince is the best thing you could ever do to it. Runs better, queiter, engine lasts longer, fuel is half price, and at most 20% increse in fuel usage (Normally it sems to be about 12% loss.. which remains a mystery to me) Having converted 8 cars of my own I can say I have...

Well if they can't deal with the gear Tinley supplies they arn't much of an LPG specialist! In my exp they supply foarly basic stuff, which normally works well. When it happens have you looked under the bonnet? have a look at the vaporizer, as it may have frozen, when this happens it can freeze...

No, not a poltician, but did work on fuel systems for a well known aircraft engine manufaturer at Filton, Gas turbines admittedly. Now an IT contractor. I am not surprised RPi won't give a warentee on an engine if the same fuel system that caused the problem is going back on it!. But JE seem of...

Would not an '87 tranfer box be an LT230 whcih would solve the problem for good? Stewart

Hmm I must rember if I don't know about VC's I must know nothing about engines.. yes makes a lot sence as both must use similar construction methods. Stewart

Well you are in minoirty of one on the cause of the liner problmes on th bigger engines. From RPi's website.. 'Overheating starts with water loss. The early 3.9 and 4.2 (pre '95-'96) engines were basically an over-bored 3.5 casting with 4mm extra on the diameter of the liners. This caused a...

If thats the eTAgas sytem they did (CIS multipoint system), it does work well but the fuel distributors (the bits with all the pipes going in) can suffer from heavy ends over time, and its wise to give them a squirt of carb cleaner once in a while. The SGi system does not suffer this Stewart

I know exactly what its trying to do, but what you can't see is the damage it does to the rest of the engine. If you had not noticed HGF is more common on modern engines than it ever used to be, and its this daft obsession with the ultimate fuel economy(required to offset the weight of the...

Hmm.. you have just shown you have no understanding of what the knock sensors are there for. The problem is the system uses these to attempt to run on the weakest mixture it can possibly get away with, as close as possible to knocking as possible.. unfortunatly this is rather too close, If you...

Too right unfortunatly. Mind you are there any for standard cars? Don't know, never used one always done my own ever scince some MOT con man tried to tell me I needed a new rack on My '59 Austin A40, not the sort of thing you say to a CAA certified aircraft engineer... Stewart

The amount of high speed detonation that occours with the later engines is a fairly big clue the maps are weak. This was what lead the specialist manufacturers to invest in their own fueling strategies. The 3.5 14CUX system was running the same map as the LE jetronic flapper system. (they are...

Sorry slipped/cracked liners ARE due to excessive combustion temps due to excessivly weak fuel maps. TVR and Marcos only suffered it till they binned the fuel maps and later the entire system. Plenty of later engines have been fitted to SD1's and normaly with carbs. OK nothing like as efficent...

While the injection system is more complex than a carb, I'm sure you know it does the same thing, arranges the right amount of fuel for the air drawn in. Injection is more efficient most of the time (but not all the time!). But there is no reason the mixer LPG systems can't work on the later...

Spelling lessons by the look of your post.

And excatly in what way is a p38 engine differnt to a Classic engine? its still a pushrod OHV V8, in fact the SAME pushrod OHV V8. No fundamental changes were made to it. It is still the '62 buick engine with some bigger holes, hardly high tech! Stewart

I am amazed anoyone thought and engine management that comlplex was needed, even then it does not work as it runs too lean and as a result the liners crack. As for the breathing dificulties with the mixers, can't say I have ever noticed a problem with a correctly setup LPG system. In fact the...

With regards to the LPG fire.. Exactly the same thing can happen with petrol!. The RPi kits are a HUGE ripoff, that Had alook at theor website and saw a Leonardo based system at £1089.. which will be costing them less than £250 to get in. You can get SGi sysems minus the tank for £600 buy it...