Worm A much better forum Silver Donating Members 3,808 Member For: 16y 4m 5d Gender: Male Location: Victoria Posted 03/10/08 05:49 AM Author Share Posted 03/10/08 05:49 AM Bit of bad news... They cant get the existing Gas injectors to match my Seimens 60 pounders...A few options for me... Have 2 tunes, one for gas and one for petrol... No overly happy with that... We got 275rwkw out of the gas injectors, so that may be a last resort...ALPGW have ordered in some bigger, supposedly higher flowing injectors that they have never used before... I can be their test pilot... (This is the option I am taking for now!!!)Another option, I can go back to standard injectors (A waste of time. All of my mods will be a waste of cash)I could change my injectors to the 42lb injectors... But once again a big loss of power, but this means I could have the same tune on gas and petrol...We could run twin injectors... Seems a bit drastic, but its a maybe, dunno how many people would want this cause it wont be cost effective... They will need to modify the fuel rail... Has anyone seen a V/Straight 6 running 18 injectors? LOL 6 for petrol and 12 for gas... :-)Either way, I might have to buy another fuel pump for the gas tank as well... I am not that worried about that... $150-200...Will let you know of any other progress... Good thing is... Cops should stay off my back as I have a debagded XR6 on LPG... :-)Cheers,WormThe good thing is, they seem to want to work it out... So, anyone who has bigger injectors and some nice horsepower... Don't get Liquid Gas Injection just yet!!!The injectors may not come in from the states for a few weeks, so I will keep you posted... I am still gonna have a crack at Calder on Sunday on petrol if its not wet... See how we go... Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 1d Gender: Male Location: @ my laptop Posted 03/10/08 08:12 AM Share Posted 03/10/08 08:12 AM Cheer up mate it's not too bad! You are in good hands with the gas problems and it will get sorted out for you in good time.For anyone interested, worms car was originally stock when he booked in for the conversion, between booking it in and actually getting it done, he went from stock to 335 rwkw which included new injectors.The problem he now has is the gas injectors are flow matched to the petrol injectors, so they don't need a seperate ecu to control their duty cycle. Using the seimens 60 lb'ers and having the injector slopes adjusted correctly for petrol, they are only in the vicinty of 70 % duty cycle to get the correct fuel flow, now this injector duty cycle is what the gas injector also uses, and these injectors at this stage, even with the biggest calibrator drilled out, will not flow enough gas at 70 % duty cycle to support this power level. If worm used 42 lb injectors and if they made power to this level, the duty cycle would be close to the 100 % figure, so then the gas injector would also get 100% duty cycle there is a chance that it would flow enough gas to support this power.ALPGW have ordered the largest gas injector available from Italy and are prepared to try these when they arrive and in the meantime they are looking at possibly drilling the gas injectors out to increase the flow capabilities which again would be finally controlled by the correct size calibrator.If this all fails,there is the possibility of having duel gas injectors which would require a bit more hardware.The next problem may be gas supply to the injectors, they beleive the intank Walbro pump will be adequate, but if not, they can fit a 2nd intank pump to keep up the demand.This technology although new to Australia has been fitted to hundreds of thousands of cars in Europe and America for quite a few years, but the Australian range of cars is being left to ALPGW to develop. They were not planning on doing any modified cars at this point of time, but as worms car has changed, so has their time frame. Link to comment Share on other sites More sharing options...
Maximus Member 1,627 Member For: 17y 8m 17d Gender: Male Location: Slip Sliding Away Posted 03/10/08 08:40 AM Share Posted 03/10/08 08:40 AM Worm, I reckon you just go with the 2 tune idea and be done with it.Most of the time you will be using Gas anyways right and when you are going for a fang or racing just load the petrol tune in.You will still have 275rwkw on the gas tune which is more than most cars at the lights. Link to comment Share on other sites More sharing options...
Pube Member 159 Member For: 17y 6m 14d Gender: Male Location: Sydney, NSW Posted 03/10/08 09:30 AM Share Posted 03/10/08 09:30 AM I picked up my BF today after the liquid install. Quite happy with the performance too. Still a small issue with the injectors also. As far as I know, its not running the ideal injector atm. LPG warehouse is comming up with the correct size in the next few weeks. Currently, Its lost a small bit off the mark but in 3rd, she pulls a bit more. Idles smoothly and you cant tell it has LPG, except for the badge on the number plate Link to comment Share on other sites More sharing options...
Worm A much better forum Silver Donating Members 3,808 Member For: 16y 4m 5d Gender: Male Location: Victoria Posted 03/10/08 11:02 AM Author Share Posted 03/10/08 11:02 AM Thanks for clarifying things Mick...The only problem now is that I have a full tank of gas in the back of my car... LOL Hopefully it will help with less wheelspin at Calder...But I am sure it will decrease my fuel economy... And that was then main reason I bought my T...! Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 1d Gender: Male Location: @ my laptop Posted 03/10/08 11:09 AM Share Posted 03/10/08 11:09 AM Thanks for clarifying things Mick...The only problem now is that I have a full tank of gas in the back of my car... LOL Hopefully it will help with less wheelspin at Calder...But I am sure it will decrease my fuel economy... And that was then main reason I bought my T...! Your welcome I guess you could always use the gas for a BBQ and cook some snags for the punters at the track Link to comment Share on other sites More sharing options...
Worm A much better forum Silver Donating Members 3,808 Member For: 16y 4m 5d Gender: Male Location: Victoria Posted 03/10/08 11:14 AM Author Share Posted 03/10/08 11:14 AM On that note... Quick question Mick.. How is your Liquid Gas Injection install going??? Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 1d Gender: Male Location: @ my laptop Posted 03/10/08 11:39 AM Share Posted 03/10/08 11:39 AM ouch! Link to comment Share on other sites More sharing options...
Worm A much better forum Silver Donating Members 3,808 Member For: 16y 4m 5d Gender: Male Location: Victoria Posted 03/10/08 11:45 AM Author Share Posted 03/10/08 11:45 AM Suppose you could always fill the tank in the back of your ute... And bring it to BBQ's in case someones gas bottle runs out??? Link to comment Share on other sites More sharing options...
INASNT Member 361 Member For: 18y 3m 7d Gender: Male Location: Melbourne Posted 04/10/08 06:19 AM Share Posted 04/10/08 06:19 AM Worm guess we will have similiar power for our drag then?? Link to comment Share on other sites More sharing options...
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