Originally Posted by jay m
i see a few running 3a fwd and 0b rwd on front arm is that giving anti drive or kick up
That is anti-dive used in Keven H. setup.
I used that Keven Hebert setup as a guide to how much movement, plus looking at Xray blocks they go the .75mm each direction as well. I measured out the difference from the A to B hole and then the 0-3 blocks and came up with .021 anti-dive, the new blocks will go 30% + beyond that while staying mounted to the B hole.
Took some time after building the set gage to re check my initial build which was after a long day. In the rear if you use the factory C shaped plastic shims as I had, those shims take on a bit of a form, and actually squeeze a slight angle into themselves. I could loosen the pin blocks and back screws off and still had troubles moving them. The fronts didn't do this, so looking at the difference being the shim I replaced the plastic shims with hard washers and this made them move mush easier. Personally I never liked seeing the gap of the block bottoms using washers as the seat contact area is about 50% of the block which is an eye sore for me....maybe thats just me though.
One of the goals was to make this direct bolt on with all stock parts including stock pins. I had a spare pack of pins and trying to determine my bore diameter was ugly using those as a guide. They were out of round up to .0015, and size varied almost .002....way more then any decent dowel quality pin should be, by apx. 10X
. thats another story for another day, I'll just say the blocks are .001 over for 3mm dowel for slip fit, and the set screw will take care of the remaining difference in pins.
On the 0 set gage. I changed my mind in selling those, they are only useful once on the initial build to set correct, once mounted they do no good...BUT a thin shim set / feeler gage will tell you exactly where each block is in relation to chassis. This is good practice anyway since the slightest bend in a screw will move them (or any block) dramatically. My stock blocks with 3 race days and 1 practice were out .018 at the worst, this is almost the equivalent of the Keven H anti dive just in slop and mis-alignment. so I believe this is one real good reason to check these, I also believe this is a huge reason why 2 cars with the exact same setup can handle different...only now there is a way to deal with this.
Lastly people are excited by another tuning option and solid mounts, rightfully so, but I'm not taking any money until these have some track time in and they are just making it out this week for that, so patients please. My car is an hour away from the track and I plan to hit that tomarrow, and I have the heartbreaking task of beating the crap out of it and trying to find a flaw in the system, honestly this makes my stomach turn as I took pride in this build.
7 sets went to Reedy and they are all accounted for none for sale, sorry. On the plus side my day employer gave me time off to build more so I may have them in supply past the 15 sets mid next week...we'll see.