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The Black Duke

Original Poster:

1,636 posts

80 months

[news] 
Saturday 27th March 2010 quote quote all
Is this possible on the wankel?

Kaelic

2,340 posts

88 months

[news] 
Saturday 27th March 2010 quote quote all
from what I have been told/read up its not possible but someone with a lot more knowledge will be along to prove/disprove me biggrin

The Black Duke

Original Poster:

1,636 posts

80 months

[news] 
Sunday 28th March 2010 quote quote all
Kaelic said:
from what I have been told/read up its not possible but someone with a lot more knowledge will be along to prove/disprove me biggrin
I am not quite sure why I would want to do the conversion if it was available. Currently trying to decide on a car around the 5-8k mark and they look like very good value. MPG is very steep though LOL.

Kaelic

2,340 posts

88 months

[news] 
Sunday 28th March 2010 quote quote all
They are gorgeous cars 2 friends have them and they battered my mustang everytime frown

Found this post on an rx8 forum if it helps:

http://www.rx8club.com/archive/index.php/t-73060.h...

bullitinhead

206 posts

56 months

[news] 
Sunday 28th March 2010 quote quote all
Although that post in the above was from 2005, is the injection timing that different from normal on a wankel..???
surley with the advancement in digital sequential injection on the lpg kits it should be possible? if not Y not?



Bullit
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Kaelic

2,340 posts

88 months

[news] 
Sunday 28th March 2010 quote quote all
One of my mates tried to look into it about a year ago after playing with my lpg mustang but couldnt get anyone in the north of england to do his RX

things may have changed from then and if they have I would be interested to know so I can point them in the direction of a conversion!


philmanns

18 posts

41 months

[news] 
Wednesday 8th June 2011 quote quote all
Hi, to anyone still interested, this can be done. We had ours converted at 57,000 miles and it is now on 91,000 with no trouble. We get approximately 150 miles to a tank on LPG at £30 a shot, so 300 miles or so for £60 as opposed to the 220-230 miles we'd get on a tank of fuel at around £75. It was converted by www.hardysrecovery.co.uk/ who seem to be the only people to have successfully carried out this conversion. To anyone wanting to get in with a slagging for converting it, i've already heard it all before on the RX8 Owners Club Forum. It'll ruin the handling, F**k the engine up, ruin the cat, don't run an RX8 if you can't afford to run it properly, buy a cheap diesel etc etc etc!!! It's my wifes car, isn't used for track use, and she covers high mileages in it hence the conversion suits us. Power is slightly less on LPG but you can switch over anytime you want the extra power from petrol. If anyone wants to know anything else just ask :-)

Phil

300bhp/ton

29,629 posts

77 months

[news] 
Wednesday 8th June 2011 quote quote all
Kaelic said:
They are gorgeous cars 2 friends have them and they battered my mustang everytime frown

Found this post on an rx8 forum if it helps:

http://www.rx8club.com/archive/index.php/t-73060.h...
lol, you just need a faster Mustang wink

But yes, agree that's the forum to ask about RX-8's if you're in the UK.

marcosgt

7,604 posts

63 months

[news] 
Thursday 9th June 2011 quote quote all
philmanns said:
Hi, to anyone still interested, this can be done. We had ours converted at 57,000 miles and it is now on 91,000 with no trouble. We get approximately 150 miles to a tank on LPG at £30 a shot, so 300 miles or so for £60 as opposed to the 220-230 miles we'd get on a tank of fuel at around £75. It was converted by www.hardysrecovery.co.uk/ who seem to be the only people to have successfully carried out this conversion. To anyone wanting to get in with a slagging for converting it, i've already heard it all before on the RX8 Owners Club Forum. It'll ruin the handling, F**k the engine up, ruin the cat, don't run an RX8 if you can't afford to run it properly, buy a cheap diesel etc etc etc!!! It's my wifes car, isn't used for track use, and she covers high mileages in it hence the conversion suits us. Power is slightly less on LPG but you can switch over anytime you want the extra power from petrol. If anyone wants to know anything else just ask :-)

Phil
As a matter of interest, would you tell us what it cost? Where did they put the LPG tank? Is it a spare wheel style one or a cylinder?

Seems like a worthwhile per tank saving and I use mine everyday, so it's not like I got to use all the performance all the time, but I wonder how long it will take to recover the cost of conversion at that rate.

M.

SpunkyMonkey

375 posts

82 months

[news] 
Thursday 9th June 2011 quote quote all
I'm guessing the tank is in the boot - could you please take a photo of the boot with the tank in so I can see how much space you have left?
Is there any additional servicing needed on the car with the kit installed?

philmanns

18 posts

41 months

[news] 
Thursday 9th June 2011 quote quote all
Hi, the cost is £2200 which we recovered quite quickly. The car has done 36000 miles in a year, most of that on LPG so the cost will more than have been recovered. The tank is located under the parcel shelf and is a cylinder. 50l tank which takes 40l of LPG. My wife still seems to manage ok with boot space. I'll take a pic and post it here at the weekend if not before. The LPG system is supposed to be serviced at 20,000 miles which it is now way overdue for so intend to get this done asap.
Cheers,
Phil

J4CKO

11,740 posts

87 months

[news] 
Thursday 9th June 2011 quote quote all
Best conversion to reduce fuel consumption on these is fitting an LS1 !

Was just talking to a local chap who owns the car spares shop, he has an 04 one and it is every bit as bad as the internet folklore according to him, he has every issue cited as being typical, shame as the look lovely.

If you could get the LS1 conversion done for say 4 grand it would be worth a look I reckon.

philmanns

18 posts

41 months

[news] 
Thursday 9th June 2011 quote quote all
J4CKO said:
Best conversion to reduce fuel consumption on these is fitting an LS1 !

Was just talking to a local chap who owns the car spares shop, he has an 04 one and it is every bit as bad as the internet folklore according to him, he has every issue cited as being typical, shame as the look lovely.

If you could get the LS1 conversion done for say 4 grand it would be worth a look I reckon.
I don't think driving an RX8 with an LS1 is quite going to be an economical daily driver! I love V8's but have a chevy to satisfy that interest :-) And, it's the Rotary engine which is the attraction for us in the RX8 anyway. Its covered 91000 now with no issues so is fine by us.

Dino D

1,864 posts

108 months

[news] 
Thursday 9th June 2011 quote quote all
philmanns said:
Hi, the cost is £2200 which we recovered quite quickly. The car has done 36000 miles in a year, most of that on LPG so the cost will more than have been recovered. The tank is located under the parcel shelf and is a cylinder. 50l tank which takes 40l of LPG. My wife still seems to manage ok with boot space. I'll take a pic and post it here at the weekend if not before. The LPG system is supposed to be serviced at 20,000 miles which it is now way overdue for so intend to get this done asap.
Cheers,
Phil
Sounds interesting..

How many miles per tank of lpg are you getting? And have you done a tank to tank lpg consumption check vs petrol?

When I did my 330i I put a 45l tank in the spare wheel well and wished I put a bigger tank as I was filling up around every 170-190 miles I think - I drove it quite hard and got only 20mp on lpg (and 25 on petrol).


philmanns

18 posts

41 months

[news] 
Thursday 9th June 2011 quote quote all
Hiya, I've just worked it out on cost rather than LPG. 150 miles per tank of LPG at £30 opposed to around £75 for 220 miles of petrol. The 50 litre tank is the biggest that will fit in that space. Filling up every 150 miles is a bit of an arse but LPG has at least enabled us to keep it.

Dino D

1,864 posts

108 months

[news] 
Thursday 9th June 2011 quote quote all
philmanns said:
Hiya, I've just worked it out on cost rather than LPG. 150 miles per tank of LPG at £30 opposed to around £75 for 220 miles of petrol. The 50 litre tank is the biggest that will fit in that space. Filling up every 150 miles is a bit of an arse but LPG has at least enabled us to keep it.
That's a little less than what I was getting - I considered an RX8 but 5 years ago no one converted them so settled for a 330i which a few had been converted already so I knew they were ok to convert (I bought with the intention of converting it)

The frequent fills were also my biggest gripe but in the 330 I could have gone for a bigger tank but didn't think at the time as I thought I would get better mpg but after fitting the lpg and seeing how cheap it was to run I stopped driving for fuel consumption figures and instead just enjoyed extending it to the red line at every opportunity so of course the consumption suffered and needed more frequent fill ups! Was worth the hassle for me though as otherwise I could not have afforded to run the car doing the miles I was doing.

Yours must be the only RX-8 to be converted in UK?

philmanns

18 posts

41 months

[news] 
Thursday 9th June 2011 quote quote all
They did one before mine which was i believe the first they had done, the first was developed by another egas agent in france whom i think provided them with a lot of their info. a considerable amount of time was spent getting it to run right which is probably why most other installers have steered clear. when i first spoke to simon at hardy's about the conversion it was instantly obvious he knew what he was talking about, which gave the confidence to go ahead with it.

marcosgt

7,604 posts

63 months

[news] 
Thursday 9th June 2011 quote quote all
philmanns said:
Hi, the cost is £2200 which we recovered quite quickly. The car has done 36000 miles in a year, most of that on LPG so the cost will more than have been recovered. The tank is located under the parcel shelf and is a cylinder. 50l tank which takes 40l of LPG. My wife still seems to manage ok with boot space. I'll take a pic and post it here at the weekend if not before. The LPG system is supposed to be serviced at 20,000 miles which it is now way overdue for so intend to get this done asap.
Cheers,
Phil
Not cheap, but even at 12000 miles a year, your figures suggest you'd pretty much recoup it in one year!

Please post photos, I'm very interested to see the impact on the boot.

M.

philmanns

18 posts

41 months

[news] 
Friday 10th June 2011 quote quote all
funnily enough i just found this http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&am...
missed it at the time.

marcosgt

7,604 posts

63 months

[news] 
Friday 10th June 2011 quote quote all
Not very reassuring though smile

2004 MAZDA RX-8 231 LPG CONVERTED CONVERSION RX8
SPARES OR REPAIRS ENGINE FAULT DAMAGE

M.
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