Hello everybody, my 2007 mini cooper s has been acting up a bit, and after a little maintenance and work Ive decided to get a crate engine and swap it out. Before people ask, I have looked up costs and calculated a rebuild and a crate engine. I have shopped around for other minis and nothing in my searches has peaked my interest like this one. Plus it has all of the creature comforts that I wanted, Navigation, Heated Seats, and according to the build sheet from the dealer Limited Slip Differential. So needless to say I want to keep this mini around for a while.

With that being said, Ive looked at a couple options, JM Turbo Coopers and Way Motor Works for an engine, I havent decided yet but keeping options open. As far as build wise, my plans are: Upgraded Camshaft, Upgraded Turbo, Hi Flow Downpipe, Upgraded Intercooler, Hi Flow Charge Pipes, ECU Upgrade, High Volume Ported Exhaust Manifold (JM turbo), and Upgraded Clutch. Currently I do have a Quicksilver Exhaust system on my mini cooper, so I will be keeping that and reusing it, roughly 2000 miles on it. On top of those upgrades I will be installing an Oil Catch Can and a Sprint Booster. Just wondering if you were building it, what else would you be doing while you were under the hood. This will be my winter project so Im not making any moves just yet, trying to get a plan figured out.

 

Looks like you're going for serious power! What I don't see in your list is "bottom end" upgrades --- rods and pistons. From reading various threads, sprint booster is a waste if you get a good tune. Also, JMTC has sold a "MAF -less tune" that has been a trial and error process for a couple of people. Use caution if you go that route. I highly recommend a Manic tune.

Big mistake I made was too much boost for 10.5:1CR pistons --- blew an engine. Rebuilding now, but this time I'm getting a Cylinder Support System installed http://cylindersupportsystem.com and lower CR pistons. Also consider a ported head to go with your exhaust manifold. Cost a bundle but if you want power --- I used Thumper Performance for both. Get some opinions before selecting a turbo. There are some bolt-on turbos from other mfg'rs that aren't hybrids, and should be a lot more reliable --- select a tuner and talk with them about what you want. Use caution if your tuner recommends his own product.

Be sure to post a build thread, with pics. Good luck ---

 

The plan is to be over 300hp, which I believe is pretty achievable. I dont mind spending the extra money on something that is worthwhile and will get me to my goal. Im still researching and putting together my ideas for what to do. I will be sure to make a build thread when everything starts to take place.

 

300WHP is obviously achievable, however I only know of two others in the USA besides myself that have done it --- as shown on a dyno chart. Not many more elsewhere either.

If you do your own rebuilding, prepare to buy a bunch of special tools, besides all the European torx stuff, both male and female, these things are built with.

 

If you are going for 300HP and want to replace everything internal it seems odd not to just rebuild it vs a crate unless you are buying it already complete. Any warranty will be void if you go changing it. My 2 cents. I'm just finishing up my rebuild on a 08 r56.

 

You could always get a Sneed4Speed Crate engine. A lot less work, about the same coin as building your own.

 

I contacted JMTC and they no longer sell crate motors, so most likely the route I will take is just to rebuild the motor to my standards. Im still a few weeks away from actually tearing down the car so Im still researching.

 

I was looking through and it is tempting, but im still considering my options. I was looking at sending the block out to Cylinder Support Systems, and the head is a little tougher of a choice. Thumper Performance and RMW appear to put out good products, so Ill be talking to them about my build and what I want and see which one can help me get there in the best way.

 

There's a great many stage kits available if you are going through the rebuild upgrade process:

http://new.minimania.com/MINI_Cooper...nce_Stage_Kits

You can customize these by deleting the exhaust, since you are already in great shape with the Quicksilver!

Performance camshaft:

http://new.minimania.com/part/G2NME6...chrick-N14-R56

Expansion tank:

http://new.minimania.com/part/G2NME3...k-Gen2-R55-r57

Short shift:

http://new.minimania.com/part/G2NMD1...58-R59-R60-R61

Clutch upgrade:

http://new.minimania.com/part/G2NMG1...5-r61-Cooper-S

Intercooler:

http://new.minimania.com/part/G2NME3160/

Heat shield:

http://new.minimania.com/part/G2NME9...56-R57-R58-R59

Oil Cooler:

http://new.minimania.com/part/G2NME4...Cooler-Kit-R56

Catch Can:

http://new.minimania.com/part/G2NME2...7-Gen2-R55-r61

Turbo upgrades, flow, etc.:

http://new.minimania.com/Search_Results/turbo/default

Plus variations of the above. Just ask, we're here to help!

Drive Hard. Drive Safe. Keep Grinning.

 

Really you think so few are over 300, Ok Whp but its more about torque and where it kicks in,,,,,,,, hmmm I was just trying to get a company to make DI injectors for us Im going for 400+ next when I get myself to decide how I want a drysump and what injectors to try, I do get the dyno thing but its not really necessary for me anymore I find apps give me what I need in way of comparing setups its how Ive been working my heads so far.

I found a boost controller is what finally got me up to the limit of my current set up, I also run a tune ect. And head work is important there is no reason 500-600 isnt possible its mostly fuel and ECU wrangling,,, ECU stompppping

OK who wants to go to 400 if its true there are so few over 300 we have to fix that, got to be more,,,,,

 

I'm guessing this is aimed at me 'cause of my post #4. I'm referring to the limits of our 2nd gen turbo cars. There are probably a lot more 1st gen Mini's out there running 300+ numbers, a few getting over 500, and maybe 1 or 2 in the 600 range, but on the streets? I don't think so. I say "probably" 'cause I don't pay attention to the 1st gen forums, and no Mini in my local area has anything close to 250, much less 300.

I agree that torque is more important than HP. Fortunately, the two are usually pretty closely related. And without headwork or a good tune, forget it! I'm still (was) running OEM injectors, but realize this is a weak link for bigger numbers.

I also agree 400WHP is probably achievable --- if I can get 361 from working "under my shade tree", then a pro mech should be able to get 400+. However, unless a dyno chart accompanies the claim, they're just "blowin smoke" --- my opinion!

 

Well yes blowing smoke sounds good best to meet up and run around a track much more fun

I see more than a few Gen2 about where I am that are looking fast, 300 just seems normal to me but hey I could be off. I figured there were way bigger builds around

Would you be interested in upgraded DI injectors, I followed the VW TSI crowd a while back they found ford-bosch injectors that flowed/sprayed better but I think there was some discussion of spray angles, If I cant get something made I will be trying some of those, the other slow part for me will be the pie cut header Im about done with using a ported exhaust manifold and I will try a larger turbo but only really push mid torque. Oh the fuel pump not sure where it gives out or just dies too fast there was an upgrade about somewhere

 

Didn't mean to say you're blowin smoke, since I haven't seen you claim any solid numbers. Others have claimed 300+ but no dyno chart. And numbers don't tell the whole story --- i.e., I can't launch worth a dam --- bad combo of flywheel and turbo. Once I get going tho, it's torque-steer and tail-spin all the way. Hell of a lot of fun! Don't do a lot of track stuff either --- I'm getting old and losing response / reaction time --- not a safe place to be, with me there.

Before I think about injectors, I want to find out what OEM injectors do --- haven't seen any specs anywhere. I might be able to live with different spray angles, with my 9.0:1CR pistons --- haven't seen the dome yet, but I don't expect much more than a featureless surface. OEM 10.5:1 has all kinds of "bumps". Have you checked out the Peuguot header / turbo pair? There's a guy in Greece with one --- http://www.minitorque.com/forum/f272...nls-r56-25947/ ungodly long thread, but some good info --- he added the Peugeot stuff maybe a year ago?

 

I think the stock injectors get to about 400 bhp or so, I cant remember which runs I saw were whp or bhp so 360whp should be close if not there.

The other issue is pulse width and good spray pattern. You can go to max on an injector but its not always the best set up, Id like a bit of room so the pulses can be shortened, of course you dont want any fuel dumpers, We are way over stock designs on the N14/18 and the factory goals are quite different