So after posting a thread on how to gain massive Hp, I have decided to turbo charge my mini cooper. I just need to know what kit to buy and what parts I will need.
Thanks,
John

 

Thats the million dollar question. People here say like boosting 6 psi is crazy talk....yeah, on a STOCK motor. If I go turbo instead of a crazy high redline NA motor...I want to boost around 25-35 psi. It can be done. You just have to build the crap out of the motor. Why can the Honda guys do it (and get over 500 HP) and we can't. That's just nonsense talk. The Fireballed car did it. The only things it had going for it is the S tranny and ECU (and Hubie....lol). Thats about it. I am still (not actively at the moment) trying to figure all this information out and weighing my cost ratio. Let me know what you come up with. I was only 1 car length off a Nissan SER last night and was smitten that I only probably have 100 HP if that to the wheels. And aren't they turbo'd? I need moooo poooowwwwa

 

As posted by the other guy who wanted to do this, this is what you need.

 

That's for the S conversion though. The tranny and bits are already a known factor. We want to know SPECIFIC internals to purchase. I.E. - pistons, custom grind crank and cams, head, valves, retainers, springs, etc. etc. What compression ratio would we go with? 8:1? What engine management system? Motec? Any other less expensive systems out there? AEM? Greddy? You see where I'm going with this?

 

Ahhhh, sorry, my bad.

 

Just givin' ya some trouble I haven't done it in awhile.

 

the stock F20 s2k motor has a compression ratio of 11:1, we can run up to 10 Psig on that, very safely, all day. after that you go with a 2mm or 3mm headgasket that lowers the compression up to 3 points.

Get new pistons, rods, crank, and some head bolts with a thicker head gasket, and i'm sure you can run some nice psi and whp to boot... let me know how it goes!!

 

hmm, so I was cruising back from a picknpull on the long desterted 1604 today, when a lambo passed me doing around 170. It sparked my interest in doing a turbo again haha. But I had to slap my hand and say no.

 

To put a turbo on a N/A engine then you need to do a lot of homework and a lot of work. You should choose a shop and work closely with them, make sure they are knowledgable in turbo setups. One I would seriously consider for yourself is www.slowboyracing.com . I got a lot of parts from them when I was building up my eclipse and they are great guys and good prices, they will help you out a lot on what is needed to do to get your car ready for a turbo.

A quick laundry list off the top off my head in what you need for a turbo setup (and I know I am missing quite a bit here) is:

Forged Internals (Pistons, rods, etc... A race motor essentially)
Probably a re-worked head, set up for a race motor
Turbo
Intercooler
Intercooler Piping
Oil Lines
Custom Exhaust Manifold
Complete Exhaust (less restrictive, probably 2.5 or 3")
Intake
Blow Off Valve
Fuel Pump
Fuel Rail
Bigger Injectors
Fuel Pressure Regulator
Engine Management System (like the Greddy e-manage)
SAFC
Boost Controller
Guages for monitoring the vitals (EGT, Boost, Oil Pressure, Engine Temp)

Thats a quick off the top of my head list for the major compnets of what would be needed. For the motor you should work with either Randy Webb, Fireballed or maybe M7 to get the engine and head built in my oppinion. If they are willing to take on a Cooper Turbo project then thats cool, if not then I would work with the guys at Slowboy Racing. For the installation you will need a local race shop to help engineer the kit also, things like intercooler placement and plumbing all needs to be custom done, along with the exhaust manifold also.

You would also need to build up the transmission, drivetrain and braking system the best you can or these will be the first to go.

A project like this, once completed yields a fast and unreliable car. Just so you know.

BEATNUT

 

Ok i have wanted to turbo my mini since the day i got it and i thought I could but after doing my homework i found out that it is not really possible. The stock cooper engine runs to high a compression ratio to handle the turbo and the material that many of the internals are made of can not handle the excessive heat created by the turbo. The cooper S engine has stronger internals and special piston thats are designed to be more effeicently cooled by the oil. those are the main problem, o and the tranny

So basically what i have decided is that using the stock cooper engine is not very likely. What i have concluded is a engine swap. My idea was to take a cooper S engine and swap it into the cooper body, remove the supercharger and intercooler hopefully allowing you to run the stock cooper hood. thats my idea in a nut shell, i posted a more in depth description of it on the underground

 

the only difference is the lowercompression and forged pistons, also the valves exc. Its very possible to turbo the MC

 

hope it will be possible.

 

So to turbo the MC could I just swap in the pistons, and would that bring the compression down to that of the MCS, if so is their a way to get it kind of in the middle. Isnt the high compression part of the zippyness of the MC.
How about a thicker headgasket. i have also heard that the valves are another weak spot in the MC engine, could I just swap in the MCS valves. That is one idea that I have had, use the MCS as a source for internals

 

0.5 Bar is safe in stock motor, this is about 40hp....

 

Ummm... well first off its not really advised to take used internals and put them into a motor thats being built. Used pistons for example wear to match the cylider walls during the break in, then if you switch it to a new motor the cyclinder walls dont have the exact same shape so might be a little funky. Also the MCS needs stronger pistons when approaching the 250hp mark so dont use stock MCS pistons, use something stronger. Lastly with the labor charges or taking things out of one motor and putting them in another, I think, is going to out weigh what this whoe project is worth. You are going to be paying labor twice if you are tearing into an MCS engine for parts to put into the MC engine.

If I were you, call Helix and just tell them your plan and get their input on it. See if they can just spend about 20 minutes on the phone with you. They are pro's at this and can probably tell you all sorts of things that we cant. But make sure your knowledge on engines and turbos and how they work and everything is sufficient enough to understand what they are talking about.

BEATNUT