difference in spool up between a S366 and a S372

[j.oe]

I'm considering wether to upgrade my BW S366 91/80 .91 A/R by a billet comp. wheel or better to buy a new billet S372.

So has anybody here an idea how much later a S372 1.10 A/R or 1.00 A/R will spool up compared to my S366.

Now the S366 makes 1bar@3400. Would hate to loose 1k rpm or more in spool.

 

Any information appreciated.

 

Cheers Jürgen

[Paul Whiffin]

Hi Jurgen,

 

I've never tested an S372 as yet so cant comment on the difference in spool up. Can you tell me what flywheel power you are aiming for though?

 

Thanks

Paul

[j.oe]

Hi Paul

 

Primarily there's no certain fwhp goal, however 800+ would'nt be bad too. And i know a billet upgraded S366 can do that.

My head's inlets/outlets will be machined this march, whereby the stock valves will be kept. And i'll manufacture a higher flowing inlet manifold by myself + 80 mm thbdy.

Therefor i'd like to add some flow capacity to my turbo as well.

 

So the actual consideration is giving an upgrade to my S366 or better spending the money for a new and slightly bigger one (and selling mine).

But i don't want to give up conspicuous low end response, i'd hate a turbo that doesn't kick in below 4500 or 5000.

 

Cheers

Jürgen

[Paul Whiffin]

I would go with the upgrade to your current turbo, I can get them done in the UK now if needed.....give me a shout if you need a price.