You said your car is an '08, which means it's turbocharged, not supercharged, so a pulley isn't applicable.
Boost tubes are probably your best bang for a cheap buck, along with a a CAI/drop in filter, exhaust, and bigger intercooler. As far as tunes go, there's RMW, Mynes, and Cobb's AccesPort, and opinions on them all vary.
I'm running a DDM Streetworks intake, hot side boost tube, and a custom Magnaflow cat-back ... that combo has given me a bit of power without too much $$, plus no CEL's or other problems.
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Metalman Well-Known MemberLifetime Supporter
- Sep 29, 2009
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- Ex-Owner (Retired) of a custom metal fab company.
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Are the boost tubes a good DIY for a learner? And how much HP does the Magnaflow give you and how does it compare to the DDM exhaust? The DDM seems like its a bolt-on. Is the Magnaflow? I just listened to both online and they sound great. -
Or
you could save your money and follow Keiths thread on doing an R56 head and cams. Then tune the sucker and have at it!
ICs are weak points on the car as well.
Matt -
Since you've got a late model Cooper with a turbo, a downpipe might be a very good thing to think about though. It'll help your turbo spool up faster and looks to be a fairly easy thing to install at home.
It'll probably do more then an exhaust AND air intake will... at least it did on my twin turbo 300ZX...
The Mynes guys have a little yellow Cooper S setup for racing. And it SCOOTS. I think they're still running stock boost levels as well. Might want to search here for their posts and see what they've done? -
An exhaust system matched to the exhaust flow CFM will enhance the performance (thermal property of exhaust or heated air flow or in study, laws of thermodynamics ).For a thermodynamic cycle the net heat supplied to the system equals the net work done by the system. Using this first basic law you may see how a less efficient exhaust system can inhibit power levels.
You can tailor the degree of sound for your personal taste by careful application of chosen exhaust system components as an example wrapping the pipes. -
Plus, no itchy hands required with the wrap! (Although I envy you and the time and effort spent doing so...) :cornut: -
I believe he is referring to my build thread here: http://www.motoringalliance.com/forums/project-car-builds/3745-cams-headwork-track-build.html
This is all pretty new territory with little to no documentation. I would NOT recommend this for the faint of heart.
If you are looking for an improvement for a street driven car I would get an aftermarket downpipe back exhaust with a second cat delete and a tune. The engines in the R56 are very well engineered from the manufacturer and you will only get small gains by replacing parts.
I recommend the exhaust, not that it will really make more power, but the sound is nice and has a very good placebo effect. The tune is really where you will notice power. Both Mynes and RMW produce good tunes. I would stay away from the ALTA tune for quite a while. Initially it looks to make very good power, but they have a horrible track record with customers.
I would also stay away from any aftermarket downpipe, yes you will make more power, but you will almost 100% have a CEL because of it. The ECU's on these cars are extremely picky.
If you were going to be driving in the track, I would recommend a larger intercooler, helix and forge both make good units. If you are going to be doing an intercooler, I would say go ahead and throw on an NM hot side boost tube. It eliminates the stock muffler that is a restriction in the intake system. -
Thanks for all that. To sum it up, the logical order of events would be:
1. Catback Exhaust (will this create a CEL?)
2. Intercooler with hot side boost tube
3. Custom tune (I assume you want this AFTER the above mods?)
Will all downpipes cause a CEL? Can I pick up 30-40 hp with these mods and still have a refined daily driver? Any reason not to do any of this stuff? Thanks again for the help. Learned tons just this morning -
Thanks for all that. To sum it up, the logical order of events would be:
1. Catback Exhaust (will this create a CEL?)
2. Intercooler with hot side boost tube
3. Custom tune (I assume you want this AFTER the above mods?)
Will all downpipes cause a CEL? Can I pick up 30-40 hp with these mods and still have a refined daily driver? Any reason not to do any of this stuff? Thanks again for the help. Learned tons just this morning -
I am going to go out on a limb and say that I don't think any or all of these things will give you an additional 30-40hp. I would guess your delta increase on the tune is going to be around 20hp, maybe a little more, the tuners are learning more about our cars every day. The biggest thing you will notice is more area under the curve. Your car will make peak, or almost peak power much sooner and keep it for longer. -
Way Motor Works New Member
For as far as hard parts go the Forge intercooler will be great bang for your buck and actually gain you power.
Tuning will also net you good gains, we do custom tuning also, but don't recomend it until you've completed your build of hard parts. Otherwise you'll require retuning. We do have our quicktune or some call canned tune that will net about 20hp on a standard cooper S that is super safe to continue adding parts until your ready for a complete dyno tune.
As for exhaust save your money, ALL downpipes cause check engine lights, even the one I make.
Put your money in the NM discharge and air charge pipes. They are good reliable gains.
Call us if you need more advise.
WAY
317.201.8670 -
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