Prins or BRC which is best?

Sy4.8is · Post by **Sy4.8is** » Thu Aug 07, 2014 10:25 pm

I did do a google search but couldn't find a definitive answer.
Similarly is it better to have your car mapped before or after an LPG installation?
And can you delete the cats post LPG conversion and pass an MOT or not?
Can BMW independents still diagnose engine faults on cars with LPG systems?

I've narrowed potential installers down to two....Hilton autogas (Birmingham) or arun autogas (littlehampton)

Horizon · Post by **Horizon** » Thu Aug 07, 2014 11:33 pm

[quote="Sy4.8is"]
I did do a google search but couldn't find a definitive answer.
Similarly is it better to have your car mapped before or after an LPG installation?
And can you delete the cats post LPG conversion and pass an MOT or not?
Can BMW independents still diagnose engine faults on cars with LPG systems?

I've narrowed potential installers down to two....Hilton autogas (Birmingham) or arun autogas (littlehampton)
[/quote]
Raj has a 4.8 is and has had a recent LPG conversion. He lives in Walsall/ wolves I think, so he's the best man to ask. He's a perfectionalist when it comes to mods on his X5.
Search his posts on the conversion, as I remember it was well documented with Photos too.

Imy · Post by **Imy** » Fri Aug 08, 2014 12:38 pm

I dont believe there is too much difference between the two. When I was researching I too had the same issue where people were happy with both.

I have BRC btw

Sy4.8is · Post by **Sy4.8is** » Fri Aug 08, 2014 1:11 pm

[quote="Imy"]
I dont believe there is too much difference between the two. When I was researching I too had the same issue where people were happy with both.

I have BRC btw
[/quote]

How are you finding it? Can your Bmw independent still diagnose faults etc.?

Imy · Post by **Imy** » Fri Aug 08, 2014 6:21 pm

I've throughly enjoyed it. Living in London I've made the most of it with traffic etc. My Indy has never had any problems with coding etc

kkx5 · Post by **kkx5** » Thu Aug 14, 2014 6:47 am

Why do You want to go for BRC or Prins?

Sy4.8is · Post by **Sy4.8is** » Fri Aug 15, 2014 5:15 pm

BRC/Prins - They seem to be the ones considered most reliable/high quality.....just been for a test drive in a BMW 335d x drive touring....only 800 miles on the clock.....very tempted to sell the x5.....actually, no I won't sell, I just need to make it go faster and LPG it....would 100 cell cats give more power?

Sy4.8is · Post by **Sy4.8is** » Fri Aug 15, 2014 5:54 pm

Just seen this....
http://www.turnermotorsport.com/p-18408 ... aders.aspx

.....with sports cats and a remap.....then LPG....

Raj · Post by **Raj** » Fri Aug 15, 2014 11:26 pm

Hiya. Been off the grid for a few weeks lol.

I used Hilton for my Prins system. They are superb and I seriously recommend them.
I went with the Lrins system after a lot of research. Hilton are only about 10mins from me so nice and local. The LPG works superbly with the 4.8 and the mods I have done help it to be both quick and economical lol.

I've just completed a couple of more mods to help things along too.

Raj · Post by **Raj** » Fri Aug 15, 2014 11:29 pm

[quote="Sy4.8is"]

Just seen this....
http://www.turnermotorsport.com/p-18408 ... aders.aspx

.....with sports cats and a remap.....then LPG....
[/quote]

I've looked at the Supersprint full system and these specifically. Costly though innit lol.

I've gone with 200cel sports cats to tie in nicely with my custom Magnaflow system. Sounds epic and has freed it up a little. The manifolds are the the real performance key.

Mine just passed it's mot no probs on LPG and with the system I now have.

Oh and no prove with diagnosing issues with the LPG system fitted. The LPG system uses a piggyback ecu to run it so the OE one is still there doing everything.

kkx5 · Post by **kkx5** » Fri Aug 15, 2014 11:30 pm

Ac stag ecu, 2xomvl hp reducer, hana injectors... Never had any issues. Prins, brc well overpriced for 10years x5's.

Sy4.8is · Post by **Sy4.8is** » Sat Aug 16, 2014 8:19 am

[quote="Raj"]
[quote="Sy4.8is"]

Just seen this....
http://www.turnermotorsport.com/p-18408 ... aders.aspx

.....with sports cats and a remap.....then LPG....
[/quote]

I've looked at the Supersprint full system and these specifically. Costly though innit lol.

I've gone with 200cel sports cats to tie in nicely with my custom Magnaflow system. Sounds epic and has freed it up a little. The manifolds are the the real performance key.

Mine just passed it's mot no probs on LPG and with the system I now have.

Oh and no prove with diagnosing issues with the LPG system fitted. The LPG system uses a piggyback ecu to run it so the OE one is still there doing everything.
[/quote]

Thanks for the info....I think you're right, the manifolds are prob quite restrictive , may see if an exhaust shop like Powerspeed can fabricate something similar for less, but keep the stock rear system so it's not too loud.

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