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Tuning a mini s with jcw tuning kit

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12K views 17 replies 7 participants last post by  huntoonhydrographics  
Tuning boxes increase performance by misreporting sensor readings. Flash tunes are better but are still a heavy compromise.

Your best option is to fit an uprated intercooler and then custom dyno tune. The idea being to lower intake temperatures as much as possible and then tune to optimise boost while keeping exhaust gas temperatures in the safe range.

Do it right, do it once, would be my recommendation.
 
An intercooler by itself without a tune will not do anything
Not true. The stock intercooler becomes heat saturated quickly when on the power and performance drops as the charge temps increase. A quality uprated cooler delays this significantly and more consistent power runs result. This is particularly noticeable on hot days when driving hard or when getting on the gas after being stuck in traffic. More gains when properly mapped though, obviously.

...but anyway, nobody was talking about installing a bigger cooler on its own.
 
So basically what I said using different words.
No.

An intercooler by itself without a tune will not do anything
This is incorrect.

The JCW Tuning Kit is just an exhaust component.
This is also incorrect, which you were willing to admit after an Internet search.

Dyno is not necessary as these ecus and power is really well understood.
This is simply bad advice.


I tune these models professionally
I can't decide if that's scary, hilarious, or both.
 
Clearly you're just argumentative online and it'll be best to leave it at that. It won't add anything to this thread. You're picking and choosing and it's not going to be constructive for anyone.
If that's what it takes for you to stop posting factually incorrect information and attempting to justify it with blatant willy-waving, then so be it.
 
It's not factually incorrect, I have hundreds of dyno sessions with logs for each on these engines (5 official Mini race cars, plus road cars) with data on multiple intercoolers, turbos, with airflow blocked and not, pushed in the hardest of conditions, and logs for each change... everything with actual evidence.

We run the racecars to over 420hp and 450ft-lbs of torque as needed for the race series. These ecus are quite well understood that a 300hp tune is quite simple to provide without a dyno. Sure, use a dyno as proof for your own self if you want after, but it's not going to change much as the power will be there. A dyno shows peak power and that's damn easy to get on these. Look at the tuning market, the vast majority of sales are tunes that were premade and are ran on thousands of cars. Custom stuff, sure get a dyno tune.

Basic facts that you choose to ignore are that you can slap nearly anything you want to the stock tune, and it won't make any difference to power to an ECU that uses a live power-request based control (the torque model). Yes, as say no one was talking about stock so no reason to pollute this thread more. You can say it's wrong if it makes you feel better, I use evidence for my comments.

I'm not trying to justify anything and neither get your argumentative approval. You came here to argue, and it showed.
Oh dear. Please zip up your trousers and put the ruler away.

You talk a lot of rubbish, with a few factoids here and there which frankly sounds like a lot of Internet search results. Your posts in this thread are littered with inaccuracies, as pointed out by others.

You speak of evidence but none has appeared yet and besides, nobody was asking for any.

You seem quite upset. Is everything alright at home?