slow motion of launch

[farmtruc]

I'm no expert with pinion angle but like it was said, my truck is so low that I raised my trans up quite a bit. About 2".

Hey I just did the same thing with my passes last week, got them in slow mo.
It really shows what's going on. I'm gonna mount my gopros underneath next time.

Btw that's moving off the line.

[o2camaross]

Thanks Allen, thats your tuning! Djm makes these pinion shims that go between the rear end and the bracket. Would these help?
http://djmsuspension.com/products/Accessories.html

[farmtruc]

They will help and are probably needed, however, you can make up some of the adjustment by raising the tailshaft, if it's needed.

thanks for the feedback on the tune, running good it seems.

[o2camaross]

ok well that will be my project this weekend. Its running great, only thing is if I try to spray through the shifts, it takes too long to shift and hits the limiter barely. Then I changed the window to close at 5700 and it shifted fine but i was passing the line at 5900 or so and it stopped sparying before the end of the quarter. I then set it to 5900 and it shifter a little late again. What do you think we can do about that?

[farmtruc]

transmission needs to hit harder at wot. basically it's slipping.
we can increase line pressure, but it'll need to be quite a bit if the trans is taking few hundred rpms to grab the next gear.

[o2camaross]

Ok. It just had a rebuild with a red wide band and z pack. And it has a hd2 shift kit and vette servo

[farmtruc]

does it slide into gear, or hit hard? might just be a little delay in the box and timing of the shift, window switch, etc.

[ecld_07]

Thanks Allen, thats your tuning! Djm makes these pinion shims that go between the rear end and the bracket. Would these help?
http://djmsuspension.com/products/Accessories.html

I got the kit with a bucket that the rearend sets on,on top the leafs. Then there's another piece on top the housing that clamps it. I can adjust the front and back bolts to raise or lower pinion. Then reclamp the u bolts to hold it. Like Allen my transmission is raised about 2in. I also had to clearance some of the crossmembers under the truck for the larger driveshaft I run. Stock might not have problems.

[o2camaross]

I did the same but my bracket and bolts are maxed out. How do you raise the tranny tailshaft?

[farmtruc]

i built a trapezoid type mount under the mount.