as far as i know the power output on the mcs is limited quite a bit more by the supercharger itself than the engine i.e high sc psi = high heat eeek high rpm's = high water pump flow = high heat high heat+ high rpm's = teflon flaking on the sc rotors eeek so in conclusion if i was to say raise the comp from 8.3/1 to 9/1 or maybe a little higher with some head work and perhaps later a pulley upgrade this would be a safe and affordable way to produce over 200 to 250 hp i dont see this being a problem so long as i can find a good after market gasket some APR studs and so on but what i dont know is how to go about raising the compression now i have heard that the mc head is a direct bolt on but has 30% less flow and a diff. cam but i would need to lower that comp. if i put that on plus a little more work to at least keep it up to mcs standards other option is decking the head now somehow i feel very skidish about this idea so now im stuck in a hole how do i go about raising the comp. levels without decking either the head or the block and i have another question does anyone know how much psi can be forced into the mcs engine like test numbers i figure it had to be done during r&d and someone out there knows i figure well into the 20's seeing that its a sohc with forged internals and a ported out head without variable valve timing and a low comp. of 8.3/1 if so a turbo such as a nice ko4 turbo would do very nicely on the engine but hey thats just me any feed back would be nice though
Just a gentle suggestion that if you structure your question in a manner other than one long run on sentence it's easier to read so that we can respond properly. Something like:
Hi, I have some questions regarding (insert topic here).
Actually, it was rumored that the Formual mechanics for BMW driver Montoya did in fact tweek his MCS to 250 by just such a manner. I suppose that he had little "warranty" worries and let them play a little.
sorry bout the sentence thing. didnt mean to make it confusing i am just use to typing on aim and the like so punc. is usually the last thing i worry about. for most cars the easiest way to raise/lower comp. is to simply install drop in aftermarket forged pistons but i have yet to see any such product advertised. furthermore i know that u can reach 200 easily and even 240 but to get to lets say anywhere above 250 takes quite a bit of money. Furthermore when u start to get into throdle body work water to air intercooling and the like just to reach a measly 250 is kinda sad esp. when honda is making a naturaly aspirated car that makes just under that completely stock (s2000). it just seems to me that the mcs engine is capable of so much more than what the sc is giving it. and it shouldnt take a truck load of bolt ons to ad 40 or more hp to the engine. most people im sure do not want to venture into physical modifications of the engine but it seems to me that it would be an economical way of reaching hp goals. i bring this up only because i havent heard of anyone really talking about this in the forums.
If you're used to aim, then you should probably slow down. Type correctly, and use the spell check feature at the bottom of the reply option (you need to click reply or quote, not just the quick reply).
Anyway, the point is that since a MINI is a fair amount lighter then a civic, and they're almost all in warranty, people don't feel the need to push past 200 hp, because they can quickly and easily do it for a few hundred $. To start taking apart the engine, and changing pistons, is much more expensive then changing the pulley.
MINIs don't produce a huge amount of power/litre because they don't have variable valve timing, like Toyotas and Hondas tend to.
A few people have taken apart full engines, and concentrated on smoothing things out, like polishing the intake manifold. I don't even know if a company makes new pistons for a MINI which could also be an issue.
Finally, there's the issue of drivability. Especially since much of the US can't get gasoline higher then 91 octane, raising the compression, and having 250hp, might not make the car a good daily driver anymore. Most people again use the car as their primary car, not as a $30,000+ race only car.
Magic 8-ball was correct. All be in awe of Magic 8 ball.
the compression on a turbo charged S2000 was increased even though there is no need to if you want 300hp+.... but if you want it to get to 560hp well I guess you need the compression.
I was expecting much more QUALITY upgrades than the stuff available for us right now for a lot less $$$. check out the Japanese market thats filled with after market parts
the way things are in the west is different... well maybe its the tracks that are located in every neighbourhood
I dont know; you figure it out, I'm gonna sit here and wish I could have been living in Japan
That's waaaaay too simplistic and a bit unrealistic as well.
How many Honda "B" motors are out there? How long has that motor and it's variants been getting modded?? How can you compare a 3 year old motor to a 12-15 year old motor when it comes to the price and availablilty of performance part?
That's insane. It
It's like questioning why BMW parts cost more than Chevy parts. I'm talking about premium aftermarket, not stock stuff.
Now take in to consideration how everybody think the new Peugeot motor is going to be some god send. Well guess what. That's just going to keep performance costs escalated.
It's going to be turbocharged.........Blech......fooey.
MINIs hissing and farting like gassy old men....yippee!!
another thing to consider is that Honda gets their power from big cams. big cams on a small motor gets you high hp numbers, high rpm and low torque. my old civic Si b16a was a 1.6 ltr with 160 hp, but only 110 ft lbs, where the cooper s has 150. and regarding the s2000, i just saw an article about one with a turbo that had nearly 300 hp, but only 147 ft lbs. thats still less than a cooper s. after experiencing the mini's fat midrange i completely forgot about the Honda's 8500 rpm shifts. in the end, vehicle weight / axle torque will always be responsible for acceleration. our cars only need 190 ft lbs of torque to run low 13's, to me that's a lot cooler than vtec.
I might have mislead you... the difference is that the cars that they use for the track contributes alot of its parts to the road car... just check out the Subaru or the Evo7, yes.. they somewhat just keep on getting the same engine treatment but you soon get a track version out by Jun or Top Secret.
the Z350 on the other hand has performance parts moving in slowly but none the less you got a Top Secret version to show you just how far you can go. one turbo kit by Greddy(not powerful) ... 2 supercharger kits, one by HKS and the other by Vortech...
ok you may consider them supercars in a way... then have a look at the Xa, Xb, Xc.... alll of them have come out rescently but that didnt stop these great companies from getting atleast an exhaust out. not to forget wheels.
all I'm saying is that if the Mini was a Japanese car it would have much more parts out there and this in turn would stop copmanies from charging us a fortune.
We are researching that. We are working to design, both Higher Compression Pistons and Rods, as well as a Full Turbo Replacement kit. We are in talks with a turbo design company, and waiting shipment of a new engine for the piston design. By winter, there should be some new products out there for rebuilding the Mini Engine. We already have the Bigger Valves, and are coming up with more projects as we can think of them.
Pilo Racing www.piloracing.com Intakes, Ignitions, Heads, Superchargers and more... stop on in
I'm glad to hear this from you... just hope it turns out to be of a great quality
since you have an idea... what effect does this have on the engine idling?
That really can only be answered by testing. Being that we are using this for a possible Turbo conversion, Idling should not be effected. The STD Cooper already has a higher compression, and idles fine. But like I said. This can only be answred by testing.
The pistons will be very high quality. Made by a company know for there pistons. When completed, we will let you know every thing. This will be a bit though, so be patient.
Pilo Racing www.piloracing.com Intakes, Ignitions, Heads, Superchargers and more... stop on in
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