marcozzi wrote:
Just wanted to check in and let everyone know how my Yeti tune is doing on my 07 WK
Marco did at least 11 or 12 changes on the file over several weeks to get it just right and it's incredible! There were some issues keeping the MIL out, but it's good after some changes.
Other mods:
DPF, cat and resonator delete.
OEM air box mods
Swirl motor resistor
Crankcase breather converted to road draft tube
EGR manually blocked
Park brake button pin....I drilled a hole through the side of the park brake release button and handle, while holding the button in. When I'm gonna launch hard, I push the release button and stick a metal pin through the hole which keeps the button depressed. That way, I can pull up on the lever to do a brake torque and just let go of the lever to launch and not have to worry about holding the button to release the brake. On the 3.0CRDs, the VGT will go open and the engine will de-fuel when the PCM sees a brake pedal input, so you can't brake torque these to launch them hard. With this method, I can get about 5-6 PSI manifold pressure a few seconds just before taking off, versus no pressure until the turbo comes up. Once you learn how to stage it, there isn't much that will get ahead of you on the holeshot. I'm usually well into 2nd gear before they are even half way through their first gear. Get ahead of them at first and most don't have the HP to catch up since I jumped so far ahead at first.
I'm going to try another mod soon at the PCM to make this one step better.
I have no MIL, no codes. Runs like a SOB!
Several months ago, I was playing with a manual shift WRX with a loud pipe. After a bit of teasing, he was first in line at a red light and I was behind him. When the light changed, he took off hard, ripping gears, and I put full fuel to the tuned CRD. At about 45MPH, I actually had to lift off the pedal because I thought I was going to go through the back of his car! We ran up to about 85 or 90 and both lifted since there's a common speed trap ahead. That WRX went nowhere haha. When we got to the next light, he drifted up beside me with his mouth hanging open, giving me the "WTF just happened look." Nothing says "launch" like 3.73 gears, parking brake "brake torque" to get the turbo lit, AWD and torque numbers in the 450 lbs/ft range.
No problem with an ecoboost F-150, hemis rams, hemi WKIIs, or even a ford interceptor police package. I had it on the open road and got it upwards of almost 130 MPH, according to my GPS unit.
No tranny slip or chatter. Great cold starts, nice idle. I'm getting 22-23.5 MPG around town with it, too.
I can't speak for the other software guys out her, but Marco is the real deal! His work is top notch and I highly recommend him for the 3,0 CRD tune if you're going to do one. Don't waste your money on a GDE tune. You'll be quite happy with the work Yeti and others on this forum.
What I wanna know is how you get involved in so many street races? Even when I had my 2006 GTO and 2007 Legacy GT(with a LOUD turbo back exhaust) I never got any attention. With my Liberty and F150, forget about it. The most excitement I get is a highway on ramp.
WRX's can be tough to drive. Unless you really have it down, launching one is hard cause you either release the clutch too quick and bog, or slip it too much and dont get the power to the wheels. My Legacy was really hard to drive consistently, much harder than my GTO which was rwd, but when I did get it just right it was QUICK.
Be careful with the ecoboost's. If you find a driver that knew what he/she was doing, and did the same brake boost launch you are, it may not end well. They are seriously quick out of the hole(for the same reason as your diesel, lots of low end torque and turbos) and pull much better up top than a diesel. If they are tuned i doubt it would be close because they put down close to 420 RWTQ. I am sure most ecoboost owners wouldnt know any better though.