Cadillac STS-V Series Forum Discussion, STS-V and XLR-V at the 1/4 mile Drag Strip! in Cadillac V-Series Forums; The first night of the 2006 race year, we had the STS-V, VLR-V & the XLR. It was absolutely amazing. ...
The first night of the 2006 race year, we had the STS-V, VLR-V & the XLR. It was absolutely amazing. Of course we had everyone going crazy about all three of the cars. To make this short both V are unbelieve. I bet no one will guess what the XLR-V ran!
STS-V 13.261 @ 104.9
XLR-V 12.669 @ 108.96
CTS-V 13.336 @ 105.47 (From last year same date)
People where going crazy! It was a little to cold for great traction so this time can be improved. I had wheel spin right at launch then it hooked up and was gone. The XLR-V had better traction then me. I would say the STS-V could get 13.1 easy. Beyond that I do not know. There where so many cars out there, makeing the loudest noises and they where running 13.5-16.9. Only the slick cares where really getting better. I will upload some pictures and video later.
I have more video, i will try and get them uploaded soon and i will post to let you know. Not sure, there any many cars that make that much noise at the track! But it didnt matter, cuz we beat all of them! It was amazing! We where the talk of the town.
By the way, one time I took off and lost traction, [and] then for some stupid reason, it switched to 2nd gear.
I ran a 16.9 because I just gave up.
I have never been able to determine why your first run right off the street seems to almost always be your best run?
Concerning that one time that your STS-V upshifted on you?
Isn't there some way to hold or lock the transmission is first gear via the shift lever?
Your car upshifted because its' computer had determined that the engine had reached the
RPM point where an upshift must occur or the motor would hit the rev limiter, correct?
Those 13.2XX times are about right according to most all the magazine tests I've read.
With practice and given better conditions, I would think that you could get your averages very close to 13 flat.
Also, the differences between the STS-V and the XLR-V are just about
correct given the approximately 500 pound differences in curb weight.
With the supercharged STS-V and XLR-V the first run is likely to be the quickest because the intercooler circuit for the supercharger charge cooler will slowly heat up and will not cool down sufficiently with back-to-back passes. One of the keys to keeping the supercharged engine output at maximum is to keep the charge cooler as cool as possible. At speed, the air flow over the intercooler heat exchanger does an excellent job. At the strip and around town the intercooler heat exchanger (that radiator for the intercooler circuit that is in front of the radiator itself) soaks up heat and needs to be cooled.
An extremely effective means of doing this is to score a salvage windshield washer bottle with an electric pump in it. Mount the bottle and put a switch so that you can activate it when wanted. Route the hose from the bottle to the intercooler heat exchanger and spray the heat exchanger with some windshield washer nozzles or a fabricated spray bar. Use windshield washer fluid in the system as it won't freeze in cold weather and it cools better due to the high methanol content in most windshield washer fluids. Most dragstrips frown upon you putting moisture onto the strip so you might want to consider whether to use it on the strip or not....but....coming down the return road you can hose down the intercooler heat exchanger and really cool it down for the next run. Depending on how well your sprayers work you can probably use it on the dragstrip with little concern if you activate it after first gear when the car speed is up. The intercooler heat exchanger system has enough thermal inertia that the spray bar isn't the sort of thing that gives any instant HP...it just keeps the intercooler system cooler for longer and is really most effective at cooling it down after a run. Works great. Believe me.
If you really want to get fancy and work more at it put ice water in the bottle before each run.....LOL.