: V8 6 Speed Transmission Vs V6 5 Speed



jjacobs122
07-01-07, 08:45 AM
I have an 06 SRX V8 with a 5 speed transmission and find it wanting. Does the new 6 speed transmission in the 07 and 08 V8 make a big difference vs old 5 speed in V8 and current 5 speed in V6?

Thanks

terryk
07-01-07, 02:20 PM
Wanting what?

caddycruiser
07-01-07, 04:13 PM
Really doesn't make that much difference, just provides one extra cog and a very slight gearing range difference. Really, for the most part, it wouldn't even be something you'd notice "immediately" back to back.

Mainly because power output is the same, so if you think it's lacking now, you likely wouldn't think any different with a new one--all depends on how it's tuned.

b4z
07-01-07, 11:11 PM
1 st gear in the 6 speed is significantly deeper than the 5 speed which is much deeper than an old style 4 speed auto.
I think the 4speed was a 3.06, the 5 speed a 3.56, and the 6speed is a 4.06.
So I would think the 6 speed would get off the line quicker(assuming that it starts off in 1st gear.)
Not too mention that second and third are deeper also.

caddycruiser
07-01-07, 11:22 PM
1 st gear in the 6 speed is significantly deeper than the 5 speed which is much deeper than an old style 4 speed auto.
I think the 4speed was a 3.06, the 5 speed a 3.56, and the 6speed is a 4.06.
So I would think the 6 speed would get off the line quicker(assuming that it starts off in 1st gear.)
Not too mention that second and third are deeper also.

Well, there you go!

Like I said, no change in power output, just in how it gets applied to the road--and it should actually be, at least a bit, noticeable.

dkozloski
07-04-07, 06:11 PM
I have an '06 AWD V8 STS with the five speed and the launch off the line is brutal. A lower first gear might result in parts breakage. I got the jump at a stoplight on a guy with an FJ1100 Yamaha and left him startled to say the least. The way it is it'll draw more attention than I need.

sgilbert
07-04-07, 06:36 PM
Don't know if it's the same tranny, but got a V6 CTS as a loaner yesterday when I took my SRX in. It was a pooch! A real D-O-G!

b4z
07-04-07, 08:49 PM
You likely got a 2.8L 210 hp version.
I've had two of them as rental cars and my 4-500lb heavier v6 SRX will smoke the 2.8L in the CTS.