Nobody get a rope, but.....I keep reading articles/posts here that a change in exaust, or intake, or SC pully makes a totally new car. Seems like all of these either tell about the improvement by the seat of their pants or on the dyno. Seems like even the factory JCW has limited improvements over the stock S. Factory S 0 - 60 is supposed to be 6.8 sec. JCW is reportedly 6.4 sec and JCW GP 5.9 sec. This almost one second gain is factory warranty for about $9,000 more. Has anybody ever really documented after market bolt on and done before and after timing trials for 0 - 60 and 1/4 mile? I'd like the get up and go as much as anyone else, sleepers we called them in the old days, but what are we really getting?

 

What is your source for 5.9 for the GP? What magazine?

6.4 for the JCW is well documented in R&T and other publications.

I think it may be very hard to get what your asking for unless someone has been diligent in record keeping. People had bits and pieces ... Alta CAI vice Dinan vice Madness, etc and each one will give different results. The combinations, once you include catbacks, headers and all the other boltons is probably huge. It would be interesting if you get any data.

 

Chows4us, The article is from Car and Driver, October 2006: http://www.caranddriver.com/shortroa...ks-gp-kit.html

 

Good find. IMO, something is very wrong here.

168 hp - 210 hp = 42 BHP gain = 0.5 secs difference 0 - 60
210 hp - 215 hp = 5 BHP gain minus 62 pounds = another 1/2 second?????

Unless the gearing has changed, something doesnt add up

Compare Standing ¼-mile: 14.5 sec @ 98 mph to JCW210 from R&T14.9 @ 95.6 mph

I can believe 0.4 secs for 1/4 mile but dunno about those 0-60 numbers ... I wonder about the gearing

 

Maybe a change is in the diff or tires possibly? Better traction might otherwise explain this... if true.

 

here is an old thread i did way back on mini2.com. When i first started modding my 03 MCS. At the time i was still running S-lites and the runflats. The 2 mods that were done was :
1) New exhaust, Dual Suppertraps
2) 15% pulley from Helix .. one of there First P&D design

http://www.mini2.com/forum/engine-dr...fter-mods.html

OH also for the JCW VS GP difference. other things are Wieght distribution and Aerodynamics. I know there minor but the GP has more wieght on the front tires than the JCW which helps with Lauches, and the Underbelly pan makes it slightly more slippery at first. both of which helps on 0-60 times

 

If it is in the Mag.. it is with ALL the professional drivers and enviorment they can aquire!!.. The mag should be just a gage.." Oh this one is faster than that one" kinda thing, or " this one stops faster than that one". Cool??
Not the actual "Numbers" Remember the BOSS 429 Mustang only went 13.20's in the 70's.

Warranty is the key, it seems.... and that IS important!! Untill a 3 year old MCS puts that brand NEW JCW in the back of the track... then it is MOD time and your stuck with the NEW QUESTION: " if I do this , will it void part of my 9,000 warranty??"

Just me......................................

Thumper

 

Hey running low 13s back in the early 70s was no easy feat, let alone with an off the shelf hot hot rod.

"if I do this" the realy BIG question....

 

My guess the difference comes from the 88 lbs less that the GP weighs. The 88 lb loss is a much bigger gain the the few HP gain. Corvette engineers would rather shed 10 lbs than gain 30 hp.

 

Can such a small reduction in weight (3% less) really have that large of a impact on the time?

 

Maybe ... every 60 pounds is something like 15 HP? or something like that. Still, I find that hard to believe. If they dropped 200 Pounds, that I would believe!

 

On our MINI's, and there's a thread here somehwere, maybe MINI2, but 16 pounds is tantamount to about 1 hp; so we're talking around 5 hp here...

The loss in weight is good, no doubt, but it certainly doesn't explain such a delta.

 

So if I went on a diet and got back to my "fighting" weight I'd gain about 5HP? That's the best incentive yet to lose some weight

 

I know it's not 100% accurate (different days, different weather conditions, driver inconsistancies, etc...) but here is my 1/4 mile before/after:

2006 MCS, 17" S-lites, performance run flats, all stock except for Magnaflow cat-back best 1/4 mile- 15.4 @ something like 93-94 mph

Same car, same wheels/tires add 15% pulley, Alta CAI w/ tube, 100 octane fuel:
best 1/4 mile to date: 14.2
best mph to date: 98.3 mph


I'm going to call that a real improvement! My "butt dyno" said the car was faster with those mods, but to me I didn't expect to see that big of improvement.

I am a big fan of "sleepers", for me I'll keep the exterior looking very stock, if the only way people can tell that I have modified my car is by the way it runs, thats cool to me!!


Jason

 

Motor trend tested a JCW in 2002 and got 6.2 sec. R&T did one at 6.3. Maybe MINI sent them a ringer GP.

 

Thanks, finally a documented before and after. That's a bunch!

 

Apples and oranges with the 100 octane. to be fair you got to use the same gas but at least you got some good data

Meaningless.

First, an 06 car has much better low end gearing than the 02 and SHOULD have been faster but was not.

Second, each car mag does testing different. For example, C&D tends to abuse the cars, dump the clutch at high RPMS to get the best numbers. C&D numbers are usually always low. R&T tends to drive more like human beings.

You cant compare numbers between mags

 

I do agree, this was not a controlled experiment ....but I will go out on a limb here by saying that with cool ambient air a bone stock MCS will see little to no benifit from 100 octane. I have no data to back that up, so take it for what you want :-P

Some people will question the benifit of 100 octane with the 15% pulley.....out on a limb here again....I say now you are seeing a benifit....


Enjoying this discussion,

Jason

 

Rocking.. my stock 06 runs 15.4's at 93 MPH !! 2.20 60 ft!! I will get a few more time befor I change to Pulley/ Thumper Head/ Snow chemical cooler/ and possible a TPR1 or 2 camshaft... 14.20's rocks !! Who cares how you got there!! great driving skill !!

Just me......................................

Thumper