Spoony

That's fair enough, but examples and experience has been presented re the switching, and not just hearsay. No ones arguing there would be a 'variation' in the mixtures etc, but it being a destructive or worrying issue seems not to be a concern. As far as I'm aware the output of the Orbital based system that Ford use isn't up to supply and FG XR6T's needs. That would be why. Also it would require a whole load more R&D to sell as a factory car with warranty for a far smaller number of sales. They would have crunched the numbers and figured it was probably not worth the investment. Ratter has done FG F6's with JTG systems, can't say I've heard any blowing up yet. My car also has now done 50,000kms on the gas and has 175,000kms on it, no explosions yet.

E85 allows for more power, yes. And in the same way E85 allows for more power, so does LPG! Higher Octane. They both have a lower energy density so you need to use a bit more to travel the same distance. The main difference is E85 is very much a niche fuel, fine if you are using locally as a toy, not for general travel, availability is extremely limited. Cost is also higher than LPG so savings wise it's less too. LPG is available most places, is cheaper and offers more power potential if supply is there. Why spend 4k on E85 and mods and not LPG and mods? The LPG system will pay for it self, took me only 14months to pay of the JTG system, now I drive down the highway, cruise past some poor sap having to do an Brisbane to Sydney trip in a small 4cyl and chuckle during the overtake that it's costing him/her more with 1/4 of the power in a cramped uncomfortable buzzer. I'd could say that's all just 'opinion', but sorry, it's fact. Exibit A: LPG vs Petrol. Notice the torque and power across the entire rev range.

The answer is in your comment! Saving money and going fast? Maybe you're on 200+k a year or something and don't care, but most people do things to save money where they can in life. For people that drive alot and want to go quicker than an average diesel then LPG is the answer. Re 'missing the point', because you have first hand experience in these setups? Why do people offer up information based only on option. "get rid of the gas" why? because to your knowledge it doesn't work, but that doesn't mean in real life it doesn't. I can't manage to find the Zoom article either but do remember reading it at the time. It's referenced both on this forum and other however: http://www.fordxr6turbo.com/forum/topic/77859-lpg/page__hl__lpg#entry1161782 http://www.fordmods.com/ford-turbo-supercharger-f22/2005-xr6-turbo-with-injected-lpg-t43227-15.html

Yeah I have no doubt that there's be a bump/step if watching live mixtures etc, but obviously isn't too much of a concern to offer 3 year warranty of a 325kw car with it? I remember reading of at least one XR6T with the same type of system/fuel fall back. Not all systems work like this and allow for this. Most of the XR6T's that have been put on gas recently for performance have used the JTG system, which doesn't fall back as it can supply sufficient gas, two pumps can be used if required.

Ok fair enough, doesn't make it any more correct though. The system used on the HSV is an example of seemless switching/integration. http://www.carsales.com.au/news/2010/commercial/hsv/lpg-for-hsv-e3-21750 "LPI is available until between 4000 and 4500rpm when the ECU switches seamlessly to 100 per cent petrol operation. The computer also switches the car to petrol automatically for starting" .My mates old 4.0 hilux under high rpm/load also dropped back to petrol with it's vapour injected system, I could never tell. In your experience fitting lesser LPG systems perhaps they can only handle low power outputs, but there are systems that can handle stock FPV and HSV outputs and more if need be. Re the cat. Mine has an aftermarket cat, rest of the exhaust is stock but it doesn't through an engine light if driven on the stock tune. My understanding is the second O2 sensor is just for monitoring the cat/emissions. Perhaps the aftermarket cat is more of a fake cat or something?

Incorrect information. The right gas system does not need to switch back to petrol. Have a read on here and the net, there are F6's on LPG, others have made over 300rwkw. The check engine light came on after doing the exhaust I'm guessing? The different cat is probably causing this, probably not doing too much that cat's are suppose to do........ ie piss on you front door step, car, garden etc. haha Ratter has summed up the limits are the Orbital system. A straight petrol tune is going to be your only option for HP. Then with larger injectors you may have an issue with the stock/gas tune on start up. My experience is the taxi's do quite will with large variances in injectors size 30% for just basic running if the O2's working well, but with the stock tune this may through a fault code as I'm not sure what they allow variance wise. 36lb injectors would probably be OK vs what the gas is calibrated at. Others may have an idea what sort of power, I'm guessing 290rwkw or so from them, max maybe?

http://fpv.com.au/gt_showroom/gtp 570nm & http://fpv.com.au/f6_showroom/f6 565nm & XR6T is 533NM So my point was all stockers are more than 500nm as such I didn't understand whys strengthening would be needed.

Now they 'recommend' it. I ran it and had an issue unrelated to the fluid (did it on other fluid, torque tags removed & box couldn't handle 3-4 shift) but at the time they said they didn't recommend it. I guess it's all about testing the product and covering their arse. Run Gulf Western in it now, which they also recommend, not really any difference I don't think. I run the 10-40w nulon engine oil also, no issues. Change it every 10,000km (do a fair bit of long trips, 5000 would be crazy). 170,000km and 290rwkw no issues. If you never give you car a good long run and putt a-b short trips always, expect the engine to get dirtier than a car that does decent long runs. It's not the oil or the car, just the conditions that do this, always has been.

Just curious on this one has 500nm is substantially less than stock cars that run the ZF. My understanding ZF rate it at 600nm, so probably a level of 'safety' in that, maybe 50-100nm.

Poll lacks 100+ RON fuels such as LPG

Original install was by another suspension mob, they replaced the faulty ones (these totally died in a week of driving to work) with solids the first tmie (rep for Superpro said too/supplied them apparently, but I dunno if it was truly superpro's choice or the suspension mob fobbed that one off once I went back with how bad the solids were) In any case I wasn't consulted. Since then Fulcrum has taken care of it all, so I can't fault them there. I'd like to think they'd see 100,000's of kms given what the stockers got, otherwise why even sell an after market product? I'm getting them to replace the inner forward control arm bushes (up front) also, it doesn't chew tyres but they showed me with a bar just how much slop there was in these (common apparently). They recon the rest all on the car are really good still

My car (BFii lpgtaxi with a mild 290rwkw auto) is going back in again soon the get the rear and ripped out for the 4th time. First time was to fit new bushes, the second was faulty 'comfort' Superpro which the replaced with solids, which were horrible in a daily so came out. This time it seem the front/outer comfort bushes are collapsing (visually one can see this), but the movement is excessive with lots of thud. Superpro/Fulcrum have been quite good, fixing it each time. They now have a newer voided design which is suppose to be stronger but not be so harsh like solid ones. Anyone tried these and can let us know what they are like? The solids were horrible and suitable only for a drag or track car IMHO so I hope they aren't anywhere near this. I don't really get why they haven't lastesd, the original factory bushes were only a bit cracked at 130,000+ kms! These last lot have done maybe 15,000km. The car rarely gets driven hard, certainly not abusively, and a lot of the driving is highway/long distance. Here's hoping these latest ones are a long term fix.

Any updates on this from the affected? Mines still doing it, perhaps even more pronounced now.

^^ The QLD car mentioned sounds like mine. The first time it copped a bit of a hard time failed straight away. It does quite alot of kms, but lots of fairly easy travel & commuting. 140,000+ out of the factory items (I'm guessing were maybe original), so little doubt it was faulty parts and not car or driving style.

^^ mine? As far as I was told, faulty batch of bushes, steel sleeve not glued properly to the bush.

Seem to be going OK at the moment. I'm doing a skidpan day on the 10th, so we'll see after that haha.

Value for money option Maxis Z1's hold on well in the wet

How long were they in for? I know they pulled stock back off the shelves at the time I had the issue. So my guess is I wasn't the first, just maybe the confirmation? I'm only at 290rwkw 6sp auto, so certainly easier on things than yours. Not much more than stock F6 power really.

Their reasoning for the first failure was a faulty centre bush. Where the steel sleeve/insert was not bonded to the bush. So it flogged out allowing too much movement also then killing the other 2x bushes. I did hear mention about the newer sort bushes you have described, but didn't want the harshness already experienced (it's a daily that gets driven lots!). The Fulcrum guy recons that even the 'comfort' ones are more durable than factory, which is all I'm after. The difference vs only a comfort centre and solid outers is huge. I'm quite happy with Superpro/Fulcrums follow up on these issues (only complaint would be that they supplied/recommended the solid ones on the 2nd refit to the original suspension mob). Less impressed with the service from the initial suspension mob that did the job initially though.

Update: The backend has now been out for the 3rd time. Fulcrum (despite the work originally being done elsewhere) have fitted 3x 'comfort' turbo style bushes, the car now no longer has epic diff whine, driveline clunking etc etc. Given the factory bushes lasted till 140,000kms with only minor cracks (the car doesn't cop that much of a hard time), I would expect the Superpro bushes to exceed this (else why bother making them?)

02 sensor is quite critical in closed loop operation (which is cruise and light acceleration), where the ECU is constantly monitoring Air/Fuel ratio and trimming (adjusting) for optimum. If it's not 100% or busted the reading may be off and fuel consumption could suffer. As for the tune, it's not going to make any difference in closed loop. The ECU has short and long term trimming which will always try to achieve best possible A/F.

Drove through some nice flooding at Daisy Hill (floating man hole covers FTW), copped some small hail, apparently snowed at my place though so was lucky didn't go straight home So how deep can one drive a coon through water? Given the air intake my guess is if it reaches bonnet line ones f*cked? Wouldn't have been fair off lol.

cheers, good info to go back to them with. 3x removal of the coon rear end, they gotta be enjoying that! lol

Yep I totally agree, and this is what the suspension shop put in to start with. After the failure (due to faulty manufacture) Superpro supplied them with a comfort centre but soild side bushes, which is more than likely now presenting all these problems. I'm just going to tell them to pull it out again and either fit new factory side ones, or new comfort ones. The cars output is only a little bit more than a stock new FPV, and I don't flog it heaps (as per getting 145,000 +kms out of the original stuff) so I would assume full comfort bushes should last even longer than stockers, just not as long as the solid ones. If there is still a knock then, proves damage has been done also I guess.

Thanks for that. So you run the all 3x comfort bushes in the T? It's lasting ok? I was very happy with it when I first picked it up till it when to poo. Not happy at all now. Given there is zero 'comfort' side bushes available at the moment, what combo would you recommend? The comfort centre bush + factory side bushes? From what I've read the factory side bushes usually hold up ok until the centre flogs out then kills the side ones. The car only has 290rwkw, is a daily really doesn't cop a hiding that often. 145,000kms on it with original bushes, 30,000km with my driving and 290rwkw and they were not totally trashed says something I guess.