So. My FR 4.10s are run in. Nice dry day. Took the car out for a WOT run and hard launch. I`m not the hard launch kinda dude but I thought I`d try it anyway.
Car is a 2003 GT Auto. Diablo 93 tune, Accufab plenum TB, K&N, catback etc. You get the picture. BEFORE the 4.10s went , on stock 17s and 3.27s the car could spin a tyre, no problem and chirp 1st/2nd easily.
Now after the gears I`ve added 18s with Michelin Pilots 295/35/18s.


Same launch. OD off and Traction control off. No spinning. 1st gear felt longer than I thought it would. Into 2nd there was a bit of slip then on to 3rd. Absolutely fuss free. I wasn`t expecting that.

Whats the deal? Was i expecting too much from the gears? It either feels like I`m down on power or I have plenty traction. I mean the car certainly tramps to 3 figures in no time. It just doesn`t feel as `frantic` as I thought. I watched a couple of 4.10 videos on youtube and they seemed lmore `fun`.

Any thoughts?

I`m actually thinking now I could get away with with Gas or a blower (even with the gears) . Dunno.

 

I'm sure it just isn't going to break the tires lose because you have much wider and stickier tires in place of the stockers. Time for more power other than blower or nitrous you could always go with a good head/cam/intake combo.

 

You have Michelin's, what you are experiencing is normal.