I posted a pic of the 23t pulley overdrive chart. Best I could do. I also have posted a few pics of the front bumper and how it needs to be trimmed to make the Mazda 6 fit. Two pics show my MTX 4 trimmed bumper next to my MTX3. I actually trimmed it a touch more than it needs to be. One of the pics shows my MTX4 and MTX3 with the the axles lined up. This is after I have a trimmed bumper on the 4. If I had not trimmed it, the front bumper of the 4 would stick out beyond where the 3 is. That is why the you need to trim it to make the Mazda fit.

Thanks Scott, you are the man.

scott,
i noticed that you're using light blue springs for both of your cars... are they better than dark blue for your vegas track?

Rcfoolz: I pm'd you my address.. Congrats on the results. Looks like me and a few others might have to eat some crow

Grande: You are welcome. If I was a less computer stupid, I might be able to take a picture. If you PM me an email address, I could email you the picture then you would have it permanent on your computer.

Jo: On my MTX3 I always ran dk blue springs on our track. I put on the light blues because I had an extra set of them and was selling my MTX3. Now with my MTX4 I have the light blue kit springs, and the dk blues that came with the MTX3 propec. I have one test day on our track using the new car and I am still using the light blue springs. I am going to test diferent spring setups next time I go out. I actually have the car setup I think pretty fast, but not easy to drive. I have a few other things to test out next time.

Speaking of computer stupid...it says I can I attach a PDF file to a reply, but does that mean everyone can download the original file? Not just the pic? I've created an editable MTX4 PDF file and I would like to distribute it, but not manually, i.e. via email. I do not have a site to house it either.

And the file is too big to attach: 520K file, 488k allowed.

Way over my head. I still struggle to make 5 min runtime

That will work out fine for now. I am not going to run that much overdrive. I like the car with about 1.008-1.01. It seems pretty stable with that setting. Thanks.

Me too.

Yeah, I remember your struggles with that at the GLC. See you in a few weeks.

Light Blue actually good if you look for more stability & sticky feeling, you have to try it.

If your track has tons of grip like revelation raceway then dark blue is better.

My home track has medium to high grip during race day. I use light blue springs for mtx3 and mtx4.

I'm so jealous....

man! i wish our track here was that nice

Oh yess!!!!....that's a lovely track..it's call JITC ...Jakarta International Twin Circuit, located in Indonesia. It's a high speed and good traction track!

We should use that track to test and tune our products!

Has anyone found a thicker chassis or a 25t pulley yet?