Hardtop Brian

No. I just read your post then watched a video where my car hit the limiter. The opposite of what I said happens. You hit the mph way before the rpm because the Speedo shows the mph x rpm for the old gear. So what happens is the delay from when the rpm is met and the shift is actually made. I have since bought hp tuners and for my car to shift at 6500, I command the shift at 6200-6300 with the mph 4 mph lower than what it is at 6500. Now that you'll meet mph much sooner, you'll shift later unless your rpm is already set a little lower.

98znasty

1.75 60ft but that's because I have a 555r i really need some better tires. I do feel like I'm losing some mph from the converter but I figured that was the nature of the beast.

98CayenneT/A

If you're looking at chasing a couple tenths like you mentioned I would start with a tire, then I would change to a PT series converter.

Here is a 4th gear to 3rd downshift with my Pt4400

Puck

iTrader: (17)

4.10s in OD is almost the same gearing as 3.73s in D. Not terrible, and if there is limited highway driving and its not a DD I would go for it.

01ssreda4

iTrader: (96)

I had 3.73/28s/4k and switched to 4.10s. Car pulled better at part throttle obviously but i gained nothing at the track. I also had a set of 27s for the street. With a properly spec'd converter and the car being lighter like mine i didnt need that much gearing.

98znasty

Trying to hold off on messing with the converter I may spray in a year or two, not sure though.

dude292

I am running H/C/I LS1 precision industries vigilante 4000 stall 4:10s with a detroit locker inside a strange S60 35 spline assembly 28 inch tires on 15X10 weld wheels best pass to date was 11.51 at 119mph 1.64 60ft didnt redline at the end but i am getting close street drives fantastic and cruise on the freeway no problem in OD

N2RACINGLS1's

iTrader: (2)

Well I made many runs with 26 ET Drags and 4k converter and 4.10 gears with 1.46 60 foot times. My concern is if you are putting the gears in stock F-body rear is how long they last with a good tire!!!

Good luck.

N2