What 6 branch?
Moderator: martauto
Hi guys I'm piecing together a few new treats for my e30 325i cab, I'm trying to find the best 6 branch manifold to buy and where to buy it from? By best i don't mean highest priced, just best suited, I've heard that they really do make a difference from the standard one, was hoping someone on here would have already been at the stage I'am and be able to offer some pointers, cheers guys
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lyricalnut02
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the best suited one is made by btb and they are expensive lol.
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Cloggy Saint
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Grrrmachine
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Change that avatar!
This is the current list of manifolds:
http://www.e30zone.net/e30zonewiki/inde ... #Manifolds
This is the current list of manifolds:
http://www.e30zone.net/e30zonewiki/inde ... #Manifolds
'89 325i Touring | Touring Resto Thread | In-Dash Screen install
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Cloggy Saint
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lyricalnut02
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how easy are these to install? Im thinking about buying one and want to install it myself if its a easy enough job.
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Grrrmachine
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Theoretically, it's just 12 nuts on the head and another six or eight nuts on the downpipe.
In actuality, as soon as you get your socket on the first nut, the stud can snap off in the head leaving you with a massive ballache that often requires you to remove the head itself to extract the broken stud.
Sometimes it's a piece of p!ss, other times its a complete nightmare, but certainly when doing a head gasket it's recommended not to remove the exhaust manifold for fear of breaking those studs. I'd say it's only worth doing if you're fitting a proven upgrade manifold like the BTB.
In actuality, as soon as you get your socket on the first nut, the stud can snap off in the head leaving you with a massive ballache that often requires you to remove the head itself to extract the broken stud.
Sometimes it's a piece of p!ss, other times its a complete nightmare, but certainly when doing a head gasket it's recommended not to remove the exhaust manifold for fear of breaking those studs. I'd say it's only worth doing if you're fitting a proven upgrade manifold like the BTB.
'89 325i Touring | Touring Resto Thread | In-Dash Screen install
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lyricalnut02
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Grrrmachine
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I tried to take the existing manifolds off my own motor an hour ago. Three studs came out by hand!
Last nut is still in there though because it's a PITA to get to. But it wasn't a tough job. Just make sure you use 6-sided sockets instead of 12-sided, for better grip.
Last nut is still in there though because it's a PITA to get to. But it wasn't a tough job. Just make sure you use 6-sided sockets instead of 12-sided, for better grip.
'89 325i Touring | Touring Resto Thread | In-Dash Screen install
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lyricalnut02
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kool mate, il keep that in mind.
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Simon
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Try and do the job with the engine as warm as you can handle too.
Changing the exhaust manifold gasket was a job I put off on my touring for about 2 years until I braved it one day, and they all came out easily. Did it with the engine hot, helped a lot..
Changing the exhaust manifold gasket was a job I put off on my touring for about 2 years until I braved it one day, and they all came out easily. Did it with the engine hot, helped a lot..

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lyricalnut02
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note taken simon cheers, redcar - ive read the racing dynamics ones are better then btb ones, whats your brothers opinion on it?
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redcar wrote:My brother had a racing dynamics one on his 325i
Anyidea where it might be now?
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lyricalnut02
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does he want to sell it 
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We replaced the gasket and done just that, snapped one of the studs off, so we've got someone on the case to get it sorted, but thought I'd might as well get a new 6 branch as it's all coming off rather then put the old one back on
Thats not proven.lyricalnut02 wrote:note taken simon cheers, redcar - ive read the racing dynamics ones are better then btb ones, whats your brothers opinion on it?
Karan on here had a dolphin grey 2.7 sport with a RD six branch, that manifold now belongs to Simon13.redcar wrote:Don't know mate but said car was a dolphin grey sport 2.7Kedge wrote:redcar wrote:My brother had a racing dynamics one on his 325i
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Anyidea where it might be now?
That sport was known as the "GUG".
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lyricalnut02
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kool barry, but why does the zone wiki state that they are, thought that info was reliable.
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I dont know, i didn't write it but i do know there is no "proven" figures for the RD manifold.
Simon's Alpina C2 2.7 was dyno'd with the RD manifold but thats not a fair test as the engine isn't standard.
Simon's Alpina C2 2.7 was dyno'd with the RD manifold but thats not a fair test as the engine isn't standard.
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B7
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I have the total BMW article on 2.7s featuring the GUG. Was initially a Stannard car.bss325i wrote:Karan on here had a dolphin grey 2.7 sport with a RD six branch, that manifold now belongs to Simon13.redcar wrote:Don't know mate but said car was a dolphin grey sport 2.7Kedge wrote:
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Anyidea where it might be now?
That sport was known as the "GUG".
B7's Motto. "If it's French, BURN IT!!!!!!"
Me to.B7 wrote:I have the total BMW article on 2.7s featuring the GUG. Was initially a Stannard car.bss325i wrote:Karan on here had a dolphin grey 2.7 sport with a RD six branch, that manifold now belongs to Simon13.redcar wrote:Don't know mate but said car was a dolphin grey sport 2.7
That sport was known as the "GUG".
As far as i know, the engine started off with Ian Haynes who had the Stannard bottom end built and mated it with Griffin Motorsport head. Then Ste Nelson bought the engine and put it in the GUG then Karan ended up with it which is when the RD manifold was fitted after it was found in West Drayton scrap yard.
Simon know the full story but it think thats it.
RD manifold in a scrap yard
Never knew that's where Karan got it from.
I think thats were it came from.
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pacerpete
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'Car spares' of West Drayton was a veritable treasure trove of morsels . My best amongst many major results was a complete E30 M3 for spares with £1500 of new parts (with invoices) in the boot for £550
Alas, ownership has changed and has the pricing policy
Alas, ownership has changed and has the pricing policy





