Hi Guys,

I have been looking at a turbo for my R53 mini to work in conjunction with the supercharger, I have seen Alta to a kit for just over £3K and I could install it myself.

The last I have seen about twin-charging is back in '06... That got me thinking, is it actually safe to twin-charge the R53?

I will of course be changing the pistons, head and possibly the con-rods.

Any advise great appreciated!

Myles

 

Several companies developed TC systems for the R53's.
Not very many of the systems worked because of the extensive tuning that was involved to get both S/C and Turbo to work together.
You would be well advised to forget doing a TC system.
Save the money and put it into systems that really work for performance.
Head porting, cam, injectors, etc.

 

+1
Twin charging sounded great, but from most of the stories I have heard, most quickly became garage queen/weekend cars...daily drivers they were not.
With the above listed mods, you can make a pretty good daily driver...or a car with so much power, getting to the wheels is the biggest issue.

 

Ahh I see...

Well I have a high tolerance to inconvenience :D
I'll take your advice for the moment until I get another Cooper S (possibly) to track the **** out of.

What kind of big *** supercharger can be bolted on?
Mincraft had a beast of a min (450-something bhp) and they bolted on this huge supercharger.

Either way i'd like to touch 300bhp...

Anyone ever heard a cooper s without an Eaton M45 supercharger and something else?

Myles

 

You should contact Jan at Revolution Mini Works, He is using a Rotrex on his 400hp R53.

 

... and Sprintex has just released a R53 SC system that Dicks Garage R53 is trying out.

 

Stay away from the twin charge set ups. It's a pretty antiquated way to make power on the R53. Almost every major R53 tuner has done this at some point and has moved on from it.

Before you start changing things out just keep in mind what you want to do with the car. Head, cam, pulley, ect will give good street performance and works for the occasional track event too. This is the popular route for most people that daily their car.

If your looking to make 300+ WHP then you will need to upgrade the main source of power, your S/C along with the internals of your engine. For this I would go turbo honestly. I'll probably catch flack for this, but it's been a tested and proven way to make power. We have had street cars running around for years pushing over 300 WHP on pump gas and race cars doing well over 600. Most S/C's for the MINI struggle to do 300 whp on a 1.6L engine and cost much more to do so above it.

 

Hi Mike,

What about RMW's supercharger kit?
It seems to get the results?

If not what turbo and from who would you recommend?
What is is like fitting wise too?

Myles

 

The biggest turbo that will work is a GT2860R.
Anything bigger than that is just a waste.
You are working with a 1.6 L motor with a SOHC.
You can only pump so much air into it before it is ineffective.
The tuning on a TC is very, very complex.
Only a few shops are capable of doing it correctly.
The Eaton S/C is not a very good unit.
If you want to make power and still run a S/C the Rotrex or Sprintex are your choices.
You need to be realistic about want you want to do with your engine.

 

Hi Vollgas,

I understand that but what I am looking for is realistic - 300bhp not whp.
I have seen people with (1.6L) much less "realistic" figures actually being pumped out of their engines.

Any known problems with the Rotex/Sprintex/RMW S/Cs?

Myles

 

check these threads for info:
http://revolutionmotorworks.com/foru...lay.php?fid=67

 

If it's 300 BHP your looking for then I would look into building up the engine. This is very achievable with the stock S/C.

Also all the HP claims for after market S/C's and even our turbo set ups are from semi built to full build engines. It just makes sense to have the engine work done first to make use of the power potential from a new S/C or Turbo and stay reliable.

 

Hi Mike,

I have taken the advice here and have gone with a full engine kit from RMW (head,cam,ecu,manifold,injectors,pistons and conrods) - can't wait until she arrives, then fund permitting in future I'll uprate the S/C

Myles