2.4JTD turbo downpipe GROUP BUY???? - Alfa Romeo Forum
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(Post Link) post #1 of 32 Old 30-05-09 Thread Starter
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2.4JTD turbo downpipe GROUP BUY????

gauging what sort of interest there would be in a group buy (to get the cost down) in changing that restrictive downpipe that fits from the turbo to the exhaust - to replace the cast part which is 2x 90deg bends and quite narrow.
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gauging what sort of interest there would be in a group buy (to get the cost down) in changing that restrictive downpipe that fits from the turbo to the exhaust - to replace the cast part which is 2x 90deg bends and quite narrow.
I'd be in. Providing my girlfriend doesn't find out anyway!!

Cheers,

Mark
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What sort of cost are we talking? I could be in.
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Yeah +1 on the costs, and is it difficult to fit?
If not mite be interested
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I'm in


dead easy to fit.... might be a good idea to convert to bolts iso studs though so the turn radius can be made bigger (fitting would be impossible otherwise)

I have a 136 bhp, do all the 2.4 use the same restrictive downpipe?
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so who knows a place that could make 5 sets?
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Are we talking purely about the precat or the complete downpipe from the turbo to the main cat?!

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Mark
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I think he means the complete section from the turbo output to the cat input.. :hmm:
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(Post Link) post #9 of 32 Old 06-06-09 Thread Starter
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from the turbo to the pipe under the sump.

the 136bhp has a different turbo, so may not fit????

This is for the 140bhp/150bhp.

Mark, I do not know if it would bolt to your turbo or not?
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I just asked, will fit all 2.4 jtd's.... the strange shape flange on the exit of the turbos is the same...
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hi guys well this sounds interesting count me in i have the 136 version so maybe we can sort this 1 as well ...hahahah
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so, we have possibly...
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Mark_JTD - you know it means losing the particulate filter - if it has one?


any others?
Don't know cost as yet, but if we can get 4 or 5 then the cost should be lower, the flange would have to to machined to fit the turbo, the stainless pipe mandrell bent and a flange to connect to the exhaust, at a guess I would have thought 130-180quid?
Torqu exhausts, linked to Red Dot who provided my old 140 with 230+bhp was who I had in mind. (spoke to them about it the friday before the alfa day at red dot.
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Yeah, i know it's not cheap to get done... but it's the single most effective mod you can make, besides remapping... hence why I'd rather join a groupbuy...

turbo spools up lower in the rev range and keeps spooling longer up the rev range... you widen the usable powerband by 500 rpm.... +- 1500-5000 for a remapped 136.... especially if you decat the exhaust aswell. I don't really expect more BHP or Nm, but the Bhp output could be higher....
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Mark_JTD - you know it means losing the particulate filter - if it has one?
Is that the pre-cat or something different? As far as I am aware there is no particle filter on mine unless it's just a different name for the pre-cat?!

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well i not sure what the particulate filter is but it sounds good iam looking to put a stainless on mine anyway take the cat off at some point also looking to replace air filter with a n other just shopping around for the best valued air filter then maybe a remap but cant get it done at once will face divorce if i did lol
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Supersprint do this part but much more expensive than the price guestimate above for Torque Exhaust job.

Supersprint Downpipe Kit - Alfa Romeo 156 1.9 16v JTD '03>
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it's quite different to the 2.4 part aswell where it bolts to the turbo... as in, the one in the link isn't bolted on
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Supersprint Turbo Pipe De-cat - Alfa Romeo 156 2.4 JTD '03>

this is for the 2.4, but not the same either.... think it might be for 20v models???
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Yup, that's for the 20v. I've asked Supersprint a few times about a price on that part but they won't release it until more people want it which sounds weird to me!!

So is the 10v 2.4 a single pipe from the turbo - cat or do you have a pre-cat which is about 10" long, then then main down pipe that goes to the cat?! I can't get onto eper at the moment to check unfortunately.

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single cat... big fecker of a thing, but only half of it is an actual cat, the other is a silencer... it's located roughly under the gearstick
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but the downpipe is seperate from the flexy, which is seperate from tyhe cat, which is seperate from the centre section, which is seperate from the backbox....

btw, just emptied my spare catalyser, and got hold of a Remus backbox... just needs a length of 60mm pipe to connect to my centre section... should get this fitted this week, at least the decat...
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hi guys any more news on this pipe and cost just got back off hols payday is loomin got money to waste i mean burn hahahahahah
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could be, I sent a PM to jasons a couple of days ago but no reply yet...

The company Wizrdofoz works for (check out his TS exhaust manifold) could be interested in making the downpipe for us if we get like 10 orders... I can likely shift a few of these myself so we're nearly there...
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Quote:
Originally Posted by Cuore_Sportivo_155 View Post
could be, I sent a PM to jasons a couple of days ago but no reply yet...

The company Wizrdofoz works for (check out his TS exhaust manifold) could be interested in making the downpipe for us if we get like 10 orders... I can likely shift a few of these myself so we're nearly there...
sorry, been busy and overlooked it, makes no odds to me where it comes from, as long as its mandrel bent stainless onto correct flanges, it would be nice if it fluted to the turbo and was a 2.5" pipe?
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the rest of the exhaust system is 60mm, iirc...
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