Originally I halucinated at the magical 200 hp... Now I am more realisitically looking for 140-150 hp.

I know that intake, chip, header and cat back will get me close at the crank. I am still thinking of port and polish the head. A light weight flywheel, and crank pully. (yes, I know it won't do much on the dyno but will help out in the real world)

I also want to give the MINI help on the bottom end. Any thoughts to this new quest?

PLEASE no replies like, "just cancle the order for the MC and order a MCS". I am not a "Whine-o"!

Besides I get all the "Whine" I can humanly desire from my 4.5 year old and my 2 year old sons. And they don't add $2K to the cost of my Cooper!

 

Larger injectors from an S? Would seem like those would fit right into the target horsepower (150 wheel hp, 12% drivetrain loss, ~168 crank HP which is what the S puts out).

/gary mc

 

Chip
Intake
Exjaust
Header
New Head (ported and polished)
New Cam (custom if you want lots of torque)
New coil, plugs and wires
"S" injectors

Steve

 

I hadn't thought about S injectors. Was thinking about boring out the throttle body.

 

Check out MTH. They claim 160 with their MTH kit 2.

 

The light weight flywheel will hurt you in the torque department when taking off, if you go too light.

Software, Cam, Head, Intake, and Header should get you very close, or over your target. Also, be sure to get a different exhaust (or modify the stock one... it has flow issues due to design).

 

We have a enlarged TB for the Cooper that may help in your quest. I think your new goal is very reasonable as well as attainable. You will still be entering a area where the transmission will be suspect and will require monitoring on your part..

Randy
M7 Tuning

 

I have checked out MTH. They are towards the top of my list when chip time comes.

I can see that I will be spending a fair ammount of time on the Dyno. I hope to doccument everything. Including a baseline pull.

 

What about the JCW exhaust for the Cooper? The one from the Soundkit
Is this good enough.

 

At this point I haven't decided the route to go for exhaust. JCW is impressive and all but also EXPEN$IVE.

 

I can't give you any HP fugures but there is one guy locally that has a magnaflow system on his cooper and it sounds VERY good.

Randy
m7 Tuning

 

Trying to remember the diameters of each brand of headder and cat back. If I recall we want the diameter to remain constant through the headder cat and cat back. This in mind the best headder might not work with the best cat back system. Unless I could get a custom cat/ cat-elimination pipe.

 

Tranny problems?!??! Yikes... I think I have to rethink about my future setup.

 

05 MC's with the getrag will have problems with 140-150hp still? or is it only with the midlands?

 

The only trouble I had seen personally was a total of three Coopers but none were 05's .

randy
M7 Tuning

 

Unfortunately, S injectors won't work in a Cooper. The jerks made them with different connectors explicitly to prevent us from trading up. I've done some searching, and the only place I've found "uprated" injectors for a Cooper was on eBay. Naturally, I'm a little suspicious.

Do the throttle body, though. I'm really curious to see what result that gives you.

 

Maybe you would be best off forgetting about increasing power so you can focus your budget on improving handling?

If I was going to mod a Cooper I would not even bother with anything to do with power until I had done a LOT of handling improvements. . .

By the time you get 150hp out of the Cooper, it would probably be louder than a stock S anyway. . . .

 

Connectors are easy to modify! You just have to know what signals the wires are sending.

 

I'm confused. Won't those proposed mods be more than the $2k upcharge for a MCS? Don't get me wrong, I like the Cooper alot. In fact I prefer its looks to my MCS.

 

I don't think there is anything "unrealistic" about an MC with 200hp. (with a much larger budget of course)

You won't get there with just a chip and a cam.

But open up the bottom end to lightweight fordged pistons, light weight rods combined in a bit stroked and a higher compression. Then open up the TB and exhaust along with a nice cam to make the best of it and software to mesh.

I think its very attainable. A bit extreme, for everyday use. But we will see a 200hp all motor MC.

 

That's the route I took: wheels & sticky rubber, sway-bars, springs, control arms, brakes, then power. "All speed and no control" is not for me. Plus, doing the suspension first gave me power, as it shed about 80 lbs from the car.

The S injectors have 4 posts, the Coopers have 3. Please post back if you are able to successfully retrofit the S injectors, and how you did it. This would be a major boon to the Cooper community.

 

I would inquire about this setup:


Individual throttle bodies on this Cooper. They put the 'S' bonnet on this Cooper that allows it to breath throw the scoop.

 

At the risk of sounding like an idiot, can I ask what that does?

What is the effect on the engine life/other parts and performance? How much does it cost?

 

Better breathing. Instead of the air going through 1 TB, and down the intake runner to the cylinders, each cylinder gets it's own fresh air.

I actually want more info on this setup. Brings back memories of Webers. (carburators) Actually, replacing the FI with 4 Webers would be really cool, and the sound would be incredible!

Steve

 

True it would mean a straighter shot for the air.