Author Topic: Timing chain kit for 3.2 JTS V6  (Read 2655 times)

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Ascari32

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Re: Timing chain kit for 3.2 JTS V6
« Reply #30 on: August 30, 2021, 07:39:37 PM »
Does anyone know for sure which Holden timing chain kits fit the 3.2 V6?  Found 2 type for the 3.6L Alloytec.  One with 3 Morse chain and one with 1 Morse chain and 2 roller chain.  Which one does the Alfa use? 

Sorry, can't work out how to post pictures for reference

Hi CHet

As others suggest Mace is your best bet for a timing chain kit. Its not the chain but the tensioners that wear due to poor oil pressure and or the wrong oil. My workshop uses Selenia and it does make a difference-  engine seems to run freer and a couple of degrees cooler. Go figure.
The real power boost comes with mods to induction and or exhaust.
I have a custom Wizard cat back system fitted - next will be to chuck out the cats and go for a full flow sports cat plus headers.

Orque in Japan has some excellent headers worth checking out - I expect it will be a full engine out job to fit them so will replace mounts and timing chain at that time. Probably bring Bella over to the Mainland (Im in Tassie) and leave her with a specialist there for a week or two to get it done.

Here is the link to Orque (the Japanese are MAD about Alfas).

http://www.orque.co.jp/tuneup/alfa_159,brera,spider_1_1.htm

PS Whoever said the 159 has a better platform? Seriously - its the same as the Brera except the latter has a 150?mm shorter wheelbase - which suits me just fine.


"The real power boost comes with mods to induction and or exhaust.
I have a custom Wizard cat back system fitted - next will be to chuck out the cats and go for a full flow sports cat plus headers."

The 3.2 JTS valve timing denies the oportunity to benefit from serious gas flow techniques. So I am not sure what anyone means about real power boost. If one is serious about wanting to increase the power output of this engine - and it can be increased by a substantial amount, whilst remaining N/A, the camshafts have to be replaced.

There is no question there will be improvements with the changes suggested above, but not, in my opinion, sufficient to justify the expense.

Trust me, it is an expensive and time consuming exercise, with no easy solution. The 3.2 JTS in standard guise is a dog of an engine. Aside from the inherent problems such as block restrictions, poor oil flow/pressure distribution and small sump capacity without any baffles to prevent surge and a high oil pick - up snout, oil returning from the heads directly into the path of the rotating journals - whipping it into windage and adding to the transit time for the oil reurning to the sump, inadequate valve overlap due to ridiculous NVO means very little can be done to improve Scavenging.

Aside from the manifold cats, conjoining the two banks after the under - floor second twin cat, destroys any chance of really good gas flow.

However, If this is what folks see as the way forward, that's fine. But it's not something I would recommend.