Turbo upgrade on RV8
Discussion
Ribol said:
Simon says said:
Hang on a moment Ivan 
............ you may be eligible for an OAP deal 
OAP my @rse ............ you may be eligible for an OAP deal 
however, what if I pretended I was fitting it to your car instead of mine, that might get me a few quid off - not much chance of a warranty claim through usage 
Is it true that the people at Google Earth thought they had a software issue because your car was always in the same place after every update?
That's still hurting
15 years ago I was going to fit lpg to my TR8 turbo. The plan was to use 8 lpg injectors screwed into the inlet runners and a holly carb which would supply petrol for those times when gas wasn't available. I was running a 'blow through' turbo system' at the time. I was going to fit a donut lpg tank in the spare wheel well.
I decided to wait for dual fuel injectors to come into production which had been tested in the US on taxi cabs and the like but the wait went on for years and eventually I bought an ls engine in 2000. I would still use lpg though as it could be used with compressions of 13:1 and maybe above. It's very turbo friendly imo and engines that run on gas are usually remarkably clean inside with a lot less wear then petrol fuelled engines.
I decided to wait for dual fuel injectors to come into production which had been tested in the US on taxi cabs and the like but the wait went on for years and eventually I bought an ls engine in 2000. I would still use lpg though as it could be used with compressions of 13:1 and maybe above. It's very turbo friendly imo and engines that run on gas are usually remarkably clean inside with a lot less wear then petrol fuelled engines.
Boosted LS1 said:
15 years ago I was going to fit lpg to my TR8 turbo. The plan was to use 8 lpg injectors screwed into the inlet runners and a holly carb which would supply petrol for those times when gas wasn't available. I was running a 'blow through' turbo system' at the time. I was going to fit a donut lpg tank in the spare wheel well.
I decided to wait for dual fuel injectors to come into production which had been tested in the US on taxi cabs and the like but the wait went on for years and eventually I bought an ls engine in 2000. I would still use lpg though as it could be used with compressions of 13:1 and maybe above. It's very turbo friendly imo and engines that run on gas are usually remarkably clean inside with a lot less wear then petrol fuelled engines.
Spot on I decided to wait for dual fuel injectors to come into production which had been tested in the US on taxi cabs and the like but the wait went on for years and eventually I bought an ls engine in 2000. I would still use lpg though as it could be used with compressions of 13:1 and maybe above. It's very turbo friendly imo and engines that run on gas are usually remarkably clean inside with a lot less wear then petrol fuelled engines.
I looked into the new liquid injection systems, essentially they use a high pressure pump to keep the LPG in a liquid state right up to the injector, this way you can use your petrol injectors for both fuels.
It's very exciting technology that has a number of significant advantages over the traditional delivery of LPG in it's gaseous state.
It's the same system used by the amazing two LPG powered Ford Focus STs that ran very very successfully in the 2010 British touring car series.
The unsuccessful 2009 petrol powered Aon team switched their Focus STs to LPG for 2010, and instantly started winning races.
In fact they won 7 races, securing 4th & 5th in the drivers championship & 2nd in the teams championship.
Not bad for a fuel that's still just perceived as a cheap low performance alternative to petrol.
Liquid injection is proven and has been successfully used by a number of large manufactures on their dual fuel offerings to the public.
But at this stage the complexity of installation does not lend itself to the cost effective conversion of an existing petrol vehicle.
So I'll stick with a low pressure gas delivery running through Keihin injectors directly controlled on map 2 on my Canems dual fuel ECU.
But there's no doubt in my mind as the costs come down the next generation of LPG kits will all be liquid injection.
The amazing thing is liquid LPG injection systems will give go an instant 15% increase in torque and horsepower over petrol.
Forget the economy benefits for a minute, LPG is the performance mod for the future
As the season went on the BTCC officials stopped seeing LPG as a disadvantage, in fact half way through the season it became very clear than LPG was an unfair advantage.
So they forced team Aon to fit a smaller 37mm turbo inlet restrictor on its engines from Oulton Park (6 June) onwards.
LPG & Turbos are a marriage made in heaven, honestly folks it's that good!!!!!
Edited by ChimpofDarkness on Friday 7th September 10:52
The dual fuel injectors I was looking at were from asia. They're probably in production now in which case I'd consider them with my next engine. The company was waiting for a license to go into production. It was quite exciting doing the research and realising the possibilities. When I'm ready I'll certainly go the lpg route. On a big capacity engine that can't have compression lowered, lpg and turbo's can allow big power/torque gains. I was using a Motec back them but it only had a single map. I'd map for the lpg and just use the carb for petrol along with a simple ignition map. I wouldn't need it to be overcomplicated.
Boosted LS1 said:
The dual fuel injectors I was looking at were from asia. They're probably in production now in which case I'd consider them with my next engine. The company was waiting for a license to go into production. It was quite exciting doing the research and realising the possibilities. When I'm ready I'll certainly go the lpg route. On a big capacity engine that can't have compression lowered, lpg and turbo's can allow big power/torque gains. I was using a Motec back them but it only had a single map. I'd map for the lpg and just use the carb for petrol along with a simple ignition map. I wouldn't need it to be overcomplicated.
Tell me more about those dual fuel injectors Mr Boosted 
Any reading matter you can link me to?
Are your sure they are not designed specifically for liquid injection?
http://www.goauto.com.au/mellor/mellor.nsf/story2/...
Edited by ChimpofDarkness on Friday 7th September 11:14
ChimpofDarkness said:
Tell me more about those dual fuel injectors Mr Boosted
Any reading matter you can link me to?
Are your sure they are not designed specifically for liquid injection?
http://www.goauto.com.au/mellor/mellor.nsf/story2/...
I'm not sure if I'll be able to find the information easily but they were definately dual fuel and being used in the US for commercial vehicles.Any reading matter you can link me to?
Are your sure they are not designed specifically for liquid injection?
http://www.goauto.com.au/mellor/mellor.nsf/story2/...
Edited by ChimpofDarkness on Friday 7th September 11:14
Goaty Bill said:
What I remember best about lpg, is waiting by the side of the road for the carburettor (and often other lpg related 'things'), to thaw out after freezing solid.
That was a fair few years ago now, but it still haunts me.
I remember all that too Mike, but it's been relegated to the history books now.That was a fair few years ago now, but it still haunts me.
There's a world of difference between a single point gas ring and a proper modern sequential LPG system.
That's what gave LPG a bad name, while petrol injection technology moved on by light years, LPG delivery systems remained stuck in the dark ages.
That not the fault of LPG, if you put your petrol Chimaera back on a carb you wouldn't expect it to run as efficiently as it can on petrol injection.
Add to this a poorly executed cost driven LPG conversion and it can all end in tears, there's absolutely nothing wrong with LPG it's the technology used and the amateurish conversions that nearly always let it down.
In truth I'm still forced to go through a 3-5 minute petrol warm up phase with my chosen system but it's hardly a big deal, as soon as the thermostat has opened & coolant is flowing around the vaporiser's water jacket there's absolutely no risk of freeze ups.
Just flick a switch and she's running smoother than on petrol, but at almost half the fuel costs and no loss of performance.
Resolve the tank and roof storage issues & you have to ask yourself the question...
Why wouldn't you?
Tvr Power said:
ChimpofDarkness said:
- Chimaera 450
- A very modest 9psi of boost
- Lucas Distributor
- Lucas 14CUX (adapted)
- Hub dyno (giving true wheel HP & torque figures)
I'm saving up the £2.5k for Eann Whalley's turbo kit.
Gunning for 300hp at the wheels and the cost equivalent of 50mpg on LPG.
Dom
The acceleration of his chimaera took my breath away!
Though reading this post I would have to point out the kit price I was quoted yesterday is £3300.
As I understand it Track V Road are doing an install so it will be interesting to see what they charge.
Gassing Station | Chimaera | Top of Page | What's New | My Stuff