As many of you know, I had my JCW tuned by Jan at RMW last weekend. Other than a hotside tube that kept blowing off, we still managed to pull a 221/250 at the wheels.

Honestly, I was expecting more. I had made several comments mentioning there were several cars that produced high 130's with very minimal mods that were not JCWs.

When I got done with the tune in KY, I never really got on it all the way back to NC. Not feeling secure with the hotside boost tube's inability to stay attached under high boost, I sure as hell didn't want to break down on the side of the road with no tools.

Anyway, now that I've had the last week to drive the car, all I can say is WOW. Jan told me not to worry about my or other car's peak HP/TQ but look at the area under the graph.

By a mere 2400 rpm, my car hits 220ft lbs and though it goes up to 250, it never drops below 220ft lbs until just after 5K rpms.

Now, I don't claim to be any kind of expert about dyno graphs but all I can say is driving the car is a blast.

I'm suppose to spend another day with Jan because he thinks the car is capable of doing more so we'll see what happens.

Anyway, after a week of actually getting to drive the car, eating humble pie never tasted so good.

Thanks everyone,

Mark

 

lol, im not JCW but i seem to complain the same way....i should be making more then 212hp/240tq too ....maybe we can persuade Jan to do something "special" for us? :P

 

well if you consider that most people that have gotten the tune already changed the advantages the JCW has over the mcs like the airbox, exhaust, and now the ECU.,.,when looking at just power numbers they turn into the same car,.,,once those things about the JCW are changed and has a new ECU.,.,what else in the performance part makes it a JCW...

 

Quite a few things ac actually....

First, the factory JCW doesn't come with a JCW airbox, it comes with an "S" airbox

Second, the turbo is bigger and the heads are reworked on the factory JCW.

Mark

 

Finally some good news for us JCW owners! now when will overseas customers get more good news?

 

Glad you're "getting" it now Mark.

Area under the curve is EVERYTHING for a street car.

The max numbers are just a more polite way of comparing genital sizes.

You have the Hummer for that....

 

 

I'm glad to hear your are happier with your tune now. I know mine is a blast to drive around, almost feels like a different car. On a side note how would you feel about painting a M7 vortex scoop for me?

 

Brian,

Painting your vortex scoop for you is not a problem... it's the least I can do since you were kind enough to let me slide in front of you at the dyno.

All I need is another piece in your color so I can tint the paint to get the best match possible.

My addresss is:

Collision Specialties, Inc.
PO BOX 607
Indian Trail, NC, 28079

(substitute 13607 E. Independence for the PO BOX if you're using UPS...everything else is the same)

Give me two days, I'll ship it back.

Let me know.

Mark

 

send him the hood!

I was just thinking... what could you send with the body color... then it came to me.. the small cover from the front bumper where the tow hook would screw in. Just an idea

 

I can do that, and thanks for the great idea fugitive.

 

This is what 90% of the folks I've spoken to do.

Fugitive ... I just realized you are my neighbor; we both go to BRR.

~JProz

 

too bad that scoop isnt going to be shot with astro black... if it was, mark knows I would be over there with a box of just STUFF hahaha

 

the easiest way to have big numbers? Use the European method.

I'll translate:

254BHP/287 torque (using american 15% math).

Now THAT sounds pretty manly, yes? (and it's about what you have at the crankshaft)

 

Hahaha, I know! All that in a MINI! Glad he finally realized he liked it

 

Jimmy,

Bring your stuff... you know I'll paint it. You pay materials, I'll do it for free. BTW, are you coming to get that NM engr'ing hotside tube?



Well, if we're going to use american math.

260 x 85 % = 221

294 x 85 % = 249.9

Now, that does sound better....lol.




My momma always said I was a little slow...

 

Another reason to use ATW hp. Between drive train loss guestimates and fuzzy math..

 

Do you notice a power drop after 5K rpms? or just a consistent pull

 

mark I will get that pipe ASAP. too bad your not there on weekends! I reaaaallly want a all AB car lol

 

Obviously the graph drops down towards the end of the pull. I'm assuming they're still on the gas till the end.

Having said that, while going through the gears, I can't differentiate between 4-5K rpms and 5-6K... it feels the same "pull wise".





Jimmy, I'll be there today (Sunday) I want to go work on the spoiler. Give me a holler later....


Mark

 

small world! Those guys are great. I wonder if I've seen your car there... there was one last time, same color, on a lift with DDM Works RIS and custom straight pipe exhaust, and another in the parking lot. This was a few Fridays ago.

Considering the RMW tune?

 

Without a doubt... Just need to get Jan up here in norcal; I'm sure BRR has enough customers (along with folks on this board) to make the trip more than worthwhile.

 

Actually I'm debating on what I want to do color wise on the front of the car. Color match the HL rings black out the scoop? Color match scoop and HL rings? Blackout the rings and scoop, etc etc. Anybody got opinions, pics?

 

black out scoop and rings please :p

 

Dang Orange you making me want a JCW R56