What's the difference? Why would you add the same mods to a JCW and then compare it to the aftermarket? It makes no sense. The thread is about the best bang for the buck. The JCW costs up to $6000+ installed yet a 19% pulley is around $400 (installed) and gives more torque!!! For under $1500 (19% pulley, intake and exhaust) you can not only blow away a JCW, but also someone with a 15% AND ECU which costs another $700-800. It's not Helix's fault that the JCW uses a bigger pulley. It just adds to the fact that Helix's pulley (the aftermarket part) is a much better bang for the buck than the JCW parts (JCW package).

The MCS likes lots of fuel to make power at the top end. With a 19% pulley, the injectors are maxed out. If you can add more fuel, you can take full advantage of all the extra boost the 19% provides at high RPM (plus keep temps down).

 

so would you recommend upgrading to 400cc injectors if you upgrade to a 19% pulley, MTH, intake and exhaust? Would it really be worth it? About heat temps, couldn't you just LOWER the rev limiter a bit so that the 19% doesn't cause too much heat? After all, with the 19% pulley the supercharger is at full boost before redline anyways...so it wouldn't hurt you performance wise...

 

Well since the MTH isn't tuned for a 19%, I wouldn't use that ECU with it. As far as the larger injectors being worth it, I think it would be. I currently am running the 19% without them and again, torque-wise, the difference between a 15% and 19% is night and day. But at the very top, the difference between the two is more subtle. As for the heat, the 19% doesn't cause too much heat. However, being that the S likes lots of fuel at the top end to make power, and there is tons of boost up there, more fuel will serve both purposes - more power and cooler temps. The 19% DOESN'T run too hot, but cooler is always better so why not add more fuel and get the best of both worlds.

 

For the money then, is it better to get a custom dyno-tuned UniChip for the 19%, or just say some of the M7 400cc injectors / thermostat and perhaps a oil catch can as well?

 

Helix13, if and when you post the dyno's would you please also post the a/f curves? I'm new to the MINI, but I'm surprised that most of these conversations don't include a/f discussion. Part of it is also my ignorance of what works best for this engine, but past experience tells me that ignoring a/f in a supercharged engine should only be done at one's own peril.

edit: Could you also tell us how much timing the engines were running?

 

What is this need for after market tuners to constantly label the jcw cars as over priced slow and not worthy? Frankly these foul cries based stricktly on commercial intrests are becoming very boring. You are in business to sell your product and that's fine. But why must you put down someone else's product?

 

I am not a tuner. I will say that JCW is over priced, not too slow, and not worthy of the cost/outcome result. That is my opinion. To many, the JCW label and warranty is worth the cost

 

you missed the point, you didn't start a thread by promoting your product and bad mouthing someone else's. everyone is entitled to thier opinion, but the same "opinion" stated in different ways once every three days by a vendor against jcw product is negetive selling technique not an opinion.

 

Isn't the optimal pulley size for the MTH the 17% - I think I've read in one of the threads that Franz recommends the 17% pulley after testing the different sizes. So I think he can accomodate a 19% if need be.

 

He didn't start the thread by bad-mouthing someone else's product. There were questions about the JCW that fueled it. Remember, it is a free country people can bash whatever they want. You could always choose NOT to participate in the thread. Of course since it's a free country, you could always complain about JCW bashing also. I personally stay away from off-topic, for example, b/c I don't want to start arguing over non-MINI issues with MINI people.

 

Gee I think the same would be the case in any industry. Especially when there's such a discrepancy. I'm in the Nutrition industry. If I developed a protein supplement that was twice the quality as company X's product yet I offered it for 1/3 the price, I'd have a hard time not talking about it too. Whether I was talking to industry people or my neighbor!

 

go back and read the original thread and you'll see otherwise. I'm wondering if the fact that you display and promote your helix 19% pulley has anything to do with your biass and lack of undrestanding my point!