NO CLUE...its going to take time to dyno 10+ cars. We might have to make this a two day thing. Thats a question for Jan...

 

Yea I thought it would be 2 days.....at least.

 

This discussion will actually be useful when there is a solid date.

 

I know...all I can say is...please give Jan a chance to catch up with his work. He is very busy and (we) haven't started talking details. If you can't wait...go ahead and get the canned tune.

 

Yea yea yea I'm just curious still. I can't make it because of work but i'd still like to see the numbers everyone gets.

 

there are probably at least 50 dyno sheets on NAM ............how many more you need?

 

And this is from 2 tunes ago.... I assure you it's better than this. This last tune was a remarkable improvement over the graph I'm showing you.

Mark

 

Mark,


Very nice . What type of engine mods do you have?

 

Not much really....

JCW cold air intake with aftermarket filter
Forge Intercooler
ED downpipe
JCW Stage I exhaust

And one boost tube... I think an M7 cold side to bypass the built in muffler.

As Jan will tell you, sometimes simplier is better.

Mark

 

Wow just wow Mark...

Jan's the MAN!

 

ED downpipe? what is this?
Is the JCW cold air intake the stock filter housing replacement that allows the cylinder/conical filter?

 

ED = Exhaust Depot

Yea its prolly the stock JCW intake

 

Correct, it's the stock JCW intake that comes with the Stage I kit.

Mark

 

thanks

 

Mods are RMW cam and header. That's it!

 

And the Hp is still going up at redline That cam has got to be really good for it to be breathing that well that high up and have really good low end torque You just need a higher redline to take advantage of it

 

Actually it turns out that the guy sitting in the car was releasing the gas pedal at indicated redline, rather than the new 7200 rpm redline

 

I checked out the ED downpipe. This and all of the JCW parts are not inexpensive to buy and put in. The only things that I can find that people seem to universally agree with that helps power is Jan's tune (or the like) and the intercooler. Can you offer up any comments as to how think your other mod helped out

 

And it looks like, if you trace the curve out to 7300, it is still going up or at the very least just hitting peak. Nice improvement Maybe that's worth a "+" after the 223

 

Sign me up (initial tune). Eight hour drive but have relatives/friends in Atlanta so no problem if it's a two day event.

 

Here's the deal....

The tune is by far the cheapest, simpliest and best bang for your buck. PERIOD.

You don't have to have the other mods, they just help the tune work better when used in conjunction with.

Having said that....

The air intake is a minimal enhancement. A good filter in a stock air intake will yield you "close" to the same results. Is it worth the difference, probably not but after coming off buying H2 and Corvette parts, I thought the parts were pretty cheap so for me it was a no brainer.

Intercooler. Let me say this... Even though manufacturers claim HP increase, I disagree. I don't think you can feel a seat of your pants nor see an increase (if so, very minimal) on the dyno.

The intercooler does not increase HP. What the intercooler does however, is allow the engine not to get heat soaked and therefore helps slow down HP loss from heat.

Personally, if I weren't going to the track, I wouldn't buy an intercooler.

Hot side boost tube. Again, not sure if you'll ever see an increase on a dyno or seat of your pants but for the minimal cost, it allows you to remove the muffler from the factory in the boost tube. Anything that removes the muffler surely has to allow a better flow of air.

Now, I did not install a cold side boost tube (I did originally) but I had sealing problems and it's a complete PIA to make it fit correctly. Just not worth it in my opinion.

ED downpipe. This is one item you can feel a seat of your pants increase. It may be more so the noise you get from the exhaust now being louder but it feels like it makes a huge difference.

Again, if it were me and I was to do this all over, I wouldn't waste my time on the downpipe. Because of it not having brackets, I've melted 3 valvecovers, it has cost me time and money. If I had made two brackets on it when I bought it, it would have been great but it has cost me so much more. (lost my warranty because of it (got it back but...))

Exhaust.... doing a full exhaust does help. Exhausts can be expensive but again, when used in conjunction with everything else, it does help.


So, where does this leave us?

If I were a newbie and wanted some extra power, I would do 3 things.

1) Jan's RMW tune
2) Cold air intake or better filter
3) exhaust (catback) (the catback in this case isn't so much for power but the right exhaust sounds GREAT)

HTH's,

Mark

 

That's a great help! Thanks.
I will probably do the IC for a couple of reasons. I have gotten into tracking my car (I blame Slinger688 for that). But I do think that reducing restrictions is always the right way to go. So this would be along the lines of replacing the hot side boost tube; although a few $$ more Altough, even on the street I have seen the manifold temp rise by quite a bit going uphill or passing. Higher temp, lower Hp, more throttle, lower gas milage. Will you see a difference? - maybe not. But it seem that the heat adds stress to the engine and reducing that should be a good thing. Ok, I am probably rationalizing, but it sounds good.

The Tune is in my bucket list . But, from what I have read it seems that it would be best to get the rest of these things out of the way, get the dyno and then the custom tune.

Here's the #1 question in everyone's mind - what is the right exhaust? And I am sure the answer is - the one that sounds right to you

 

I can tell you this. I've had several different exhausts including a 1000 full exhaust from Exhaust Depot to homemade muffler systems and OEM JCW exhaust, I ended up back to the JCW Stage I exhaust and 2 1/2 front half coming off the downpipe.

It took a little modification (well, a lot since I did a ton of welding, cutting and taking on and off....lol)

If I had to just go out and buy an exhaust (catback) and didn't want to fool with it, I'd either go with the JCW stage I exhaust or a Milltek.

For me, it's not just about sound. I'm already assuming the performance is about the same.... but how it looks and certain things like drone noises, etc, etc..

I ended up with the Stage I because I can hear it while I'm driving without being too noisy, it doesn't drone on the highway and I love the look of the tailpipe extensions.

My .02 worth....

Mark

 

What type of HP should I expect with both intake and exhaust on my '08 Clubman S after the tune?

 

True. The limiting factor on my car was not the cam, but the injectors. Had i had bigger than stock 380's, I think Jan could have pushed the rpm's up a little bit more. Better to be safe though!

Soon to come, big valve head + a little something extra.