2004-2007 Cadillac CTS-V Performance Mods Discussion, Gforce 9" IRS in car vids in Cadillac CTS-V Series Forum - 2004 - 2007; Happy New Year to all my fellow V owners! I have 3 in car videos for you that will let ...
Happy New Year to all my fellow V owners! I have 3 in car videos for you that will let you see and hear how the 9" diff works as well as the 4.30 gears that I chose and the Monster stage 3 clutch set up. You will not hear the rear as its silent and the clutch has minimal chatter sooooo so far so good on all my new parts ! The 4th video was lost somehow and that was the one with the first gear pull so sorry for that but I do have a 2nd gear pull in one of the vids and you can also see how the gears are at 70-75 mph rpm wise. Not too exciting of vids but some of you guys had questions about these and wanted to hear if the diff made noise. I will have track vids from under the car with drag radials next month so that should be cool!!
okay, here is the good, the bad and the ugly.... The dyno went well, very pleased. As you will see from the chart my original dyno was 438/406 with the 9" installed in went down to 420/384 and with the return since I had the lightweight MOnster flywheel we got it back up to 437/408 so I am very happy to be at the same power level with the loss of the larger 9" parts so you will lose some power with this beefy rearend but this is how you can make up for that. Now the BAD news is that I went from being at the top of 4th with my 3.73's at 132 down to 118 with my 4.30's so I may run out of gear at the 1320 but we shall see. 4.10's may be the optimal way to go if you want gears. I also recalibrated my speedo and 75 mph is 2300 rpm and 80 is 2500 rpm so it was off a tad in the video.
It rained on me the whole way over there so my clean car got filthy so the back is grey in the vid thanks to my big wheels and tires, lol. Track vids to come in a few weeks!
shooting the front mount will be pretty much impossible since its very high and tucked up in there, very dark with minimal lighting and the exhaust are in the way. I will get the vid from the same point I did the first time because thats the best point I can see. ty