View Full Version : 11.963 @ 116.5 on video - MT 305/35 18" drag radials 1.762 60'


GA09CTSV
05-20-09, 12:31 AM
Here's a video of a run I made at Atlanta Dragway on Friday.

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My car is a 2009 CTS-V automatic with wait4me ECM and air box mod.

I was trying out some new Mickey Thompson 305/35 18" drag radials. The tires worked great - I highly recommend them to anyone looking to improve their 60' time. I pulled a 1.762 and a 1.796 60' and I believe there's more potential in the tires but due to a huge crowd and numerous mishaps on the track I only got in two passes in 5 hours. I didn't have a chance to try different tire pressures and launch techniques to try and zero in on an optimal launch. Here's a quick overview of the two passes I made:

First pass: Tires at 18PSI, did a light burnout. I couldn't hold the burnout very long because when the tires heated up they started grabbing too hard to hold the car with light brake pressure. I launched at idle and floored it on the last yellow light. This resulted in no spin at all and a 1.796 60' time. I had one tire and rim marked to check for bead/wheel slippage and it did slip 5" on that pass so according to MT's website I should be using beadlock wheels.

Second pass - The one on video: I wanted to get some tire spin off the line on a least one pass so I put the tires at 22 PSI - I know, that's crazy high but I was determined to make 'em spin and knew this would be my last pass. No burnout in the water. I did a dry-spin up to the line and they did spin. I torque-braked it - Don't remember the RPM but not very high - I would guess 2500 RPM at most. This resulted in a 1.762 60' time and there was some spin off the line but the car was pulling hard and the launch felt good. The Vette in the other lane is a C6 Z06 - The LS7 is fully built and has a ProCharger - Owner's friend said it was making 850 HP.

If I could have made more passes I would have dropped back down to 18 PSI and tried higher RPM torque-brake launches. These tires bite so hard I'm a little concerned that I could start really testing the durability of the rear end. MT's website says you can run these tires at the track with as low as 11 PSI! I don't think I'll be trying that but maybe so of you guys with 6-speed manuals want to test that out.

My fastest pass to date is an 11.918 @ 122.05 MPH so my MPH was down on the two runs above. It was warmer and much higher humidity but don't think that would account for the almost 6 MPH lower trap speed. About the only thing I can think of is the different amount of wheel spin at the start - That accounts for 2 MPH difference based on the 1/8 mile MPH/ET between the 116 and 122 MPH traps.

The MT 305/35 18" tires are heavy, 31 lbs, and my rims are just what my local store had in stock - I think they weigh 25 lbs each. So, I think I'm turning more weight than the stock wheels/tires. Also, the 305s stick out from the fenders a little - Fine with me but some might not like that fact - I'm not sure if a different rim would pull them in some.

Hondarrr
05-20-09, 12:49 AM
Wow that is nice 60 ft time, is your car bone stock? did you race it with stabilitrack off? and on drive or with the shift on sport?, I know that tires is what we need the most for 1/4 mile time,,,good job..congrats...

Nutz
05-20-09, 12:57 AM
Makes sense though, wheelspin (especially in the first 60') equates to added mph on the top end. Your 60' times posted are actually pretty good for an irs vehicle of that mass.
That pass looked like you could of enjoyed a sandwich or doughnuts and coffee while tuning in Howard 101 going down the track and the other guy was wrestling with his shifter the whole way. Nice to see the vid posted, thanks.

dvandentop
05-20-09, 01:13 AM
wow c6 owner cant shift for shit

GA09CTSV
05-20-09, 01:20 AM
My car has the wait4me ECM and airbox mod - Stock other than that and the MT Drag radials of course. All my runs are with the car in comp mode (hit TC button twice) and suspension setting on normal/touring. Tran in sport mode - You don't want to waste a run with the trans "just in drive". Put it in sport mode or it will launch in second gear (after the initial shift out of first which will probably happen as you're driving up to stage).

marktanner
05-20-09, 03:04 AM
GA09CTSV, where do you live? I saw a black V2 in Buckhead two Saturday evenings ago. Was that you?

Hondarrr
05-20-09, 04:47 AM
My car has the wait4me ECM and airbox mod - Stock other than that and the MT Drag radials of course. All my runs are with the car in comp mode (hit TC button twice) and suspension setting on normal/touring. Tran in sport mode - You don't want to waste a run with the trans "just in drive". Put it in sport mode or it will launch in second gear (after the initial shift out of first which will probably happen as you're driving up to stage).

Thanks guy for the info, what was your 1/4 mile on stock form? I live in florida I run my car in a hot temperature and my best pass was 12.33 @ 115 mph and 1.9 60ft and it was with the tc on, susp touring mode and tran in sport mode and launching on about 1800 rpm, I am doing my homework on what tire to use on our stock rims...

vperl
05-20-09, 04:50 AM
Please have the fellow that shoots the next clip, get a Tripodd, or something I got sea sick....

who won ?


Pulled away from that vet like a rocket then ???????

Street King
05-20-09, 05:58 AM
Any idea on the density altitude during those runs? The mph is a bit low. 116 mph is what stock V are trapping and with your mods, you should've hit 120 mph at least.

wait4me
05-20-09, 10:21 AM
Very nice! I should have went with mickey thompsons.. Im calling to order them today. My BFGs and thier 2.2 60ft are worthless on this car.....

GA09CTSV
05-20-09, 11:16 AM
GA09CTSV, where do you live? I saw a black V2 in Buckhead two Saturday evenings ago. Was that you?

No, wasn't me - I'm a little North of Marietta.

GA09CTSV
05-20-09, 11:21 AM
Thanks guy for the info, what was your 1/4 mile on stock form? I live in florida I run my car in a hot temperature and my best pass was 12.33 @ 115 mph and 1.9 60ft and it was with the tc on, susp touring mode and tran in sport mode and launching on about 1800 rpm, I am doing my homework on what tire to use on our stock rims...

My best stock time was 12.124 @ 116.02 MPH with 1.863 60' - That was my very first pass in the car. I only made 3 passes stock before getting the wait4me ECM.

GA09CTSV
05-20-09, 11:23 AM
Please have the fellow that shoots the next clip, get a Tripodd, or something I got sea sick....

who won ?


Pulled away from that vet like a rocket then ???????

I crossed the line first - In the video you can see the win light come on in my lane. Vette ran 12.782 @ 122.62 MPH with 2.162 60'

GA09CTSV
05-20-09, 11:29 AM
Any idea on the density altitude during those runs? The mph is a bit low. 116 mph is what stock V are trapping and with your mods, you should've hit 120 mph at least.

No, sorry, don't know that info - I did trap 122 mph at a different track. I agree that the 116 trap speed seemed low but I believe some of that was due to reduced wheel spin at the start - Nutz commented on that too. Car felt strong on top end.

GA09CTSV
05-20-09, 11:39 AM
Very nice! I should have went with mickey thompsons.. Im calling to order them today. My BFGs and thier 2.2 60ft are worthless on this car.....

Hey Jesse, I was hoping you would chime in here. With these tires at a lower PSI, decent burnout and all your extra power I would expect you get some great launches. Any idea at what RPM would be safe to torque-brake the automatic up to at the line? I don't want to risk any trans damage. The rear end felt rock solid on the two passes. I forgot to mention too that a friend was there in his '97 Cobra with Nittos, 555R2s I think he said, and he was getting no traction even at 15 psi.

surgin
05-20-09, 02:16 PM
the management at my local dragstrip claim they have seen 3 different cts v rearends break and they believe it was because slicks were used. 2 people at that track told me"just don't get slicks". anybody believe there is truth to this or just an unreliable anecdote?

wait4me
05-20-09, 02:18 PM
I would guess it was the OLDER generation V. Not the 2009. The 2004-2007 V had a Shi.. i mean Crappy rear end that i wouldnt even put in a honda.

V-Eight
05-20-09, 02:18 PM
Wow, you raped that 'Vette. Nice job.

PSRmark
05-20-09, 03:46 PM
Please have the fellow that shoots the next clip, get a Tripodd, or something I got sea sick....

who won ?


Pulled away from that vet like a rocket then ???????


Left lane had the Win light.


I run my M/T's at 14 PSI to the tune of 1.48 60' (non cadillac)

They are great tires, I was wondering when someone was gonna run them.

Just be prepared for broken parts if you're launching real hard.

Hogg
05-20-09, 04:10 PM
11.9 to the Supercharged ZO6's 12.7, you absolutley SMOKED that Vette.

Glad to see you are using your performance sedan to its potential. Looks like a lot of fun to me.

peace
Hog

4gear70
05-20-09, 05:09 PM
If you listen carefully near the end of the clip, you can hear the hush in the crowd and what sounds to be astonishment and disbelief! :eek:

Great run, GA09CTSV! :)

CADYSHAK
05-20-09, 10:25 PM
Nice run , luckily for you the driver in the Z06 is a moron ! I've owned a C6 Z06 before trading it on a CTS-V , the vette is "scary Fast" .

CADYSHAK

SSideways
05-20-09, 11:54 PM
nice runs.

You want to most tire pressure without losing traction (less rolling resistance) with less resistance you increase MPH as well as E.T.

Hi-psi
05-23-09, 09:02 PM
No, wasn't me - I'm a little North of Marietta.

Where about? I'm in the Acworth/Kennesaw area.

Looking to possibly pick up a blk/blk auto CTS-V soon once I find the right deal.

GA09CTSV
05-25-09, 02:25 AM
Nice run , luckily for you the driver in the Z06 is a moron ! I've owned a C6 Z06 before trading it on a CTS-V , the vette is "scary Fast" .

CADYSHAK
Oh, I know about the C6 Z06 - I've got one of those sitting in my garage too so I know about "scary fast" but 850HP ain't no good in a dragrace, or anywhere, if you can't put it to the ground - Well, that, and make two shifts.

KatMcRat
06-06-09, 08:57 PM
Nice pass :D

Can you tell me what rims you mounted them on? I need to know what to ask Santa for Christmas.

I told my husband I'm going to keep my car stock... But, tires are stock right? ;)

8speed
06-06-09, 09:22 PM
Barely breaking 12 with a modded CTS-V on MT's? Not to sound harsh but that is horrible for a car of this caliber. C63 AMG's are running 11.4's with DR's and a tune and my buddy even ran a 12.3 at 115 mph in his stock IS-F on DR's. and the V2 has over 100 hp advantage:cookoo:


116 trap speed? :hide:

kencav
06-06-09, 10:24 PM
Are you done trolling yet 8-speed.....just buy another Lexus please!

CVP33
06-06-09, 11:32 PM
Barely breaking 12 with a modded CTS-V on MT's? Not to sound harsh but that is horrible for a car of this caliber. C63 AMG's are running 11.4's with DR's and a tune and my buddy even ran a 12.3 at 115 mph in his stock IS-F on DR's. and the V2 has over 100 hp advantage:cookoo:


116 trap speed? :hide:

H8 much?

CIWS
06-07-09, 08:53 AM
C63 AMG's are running 11.4's with DR's and a tune and my buddy even ran a 12.3 at 115 mph in his stock IS-F on DR's. and the V2 has over 100 hp advantage:cookoo:

The V also has 600 extra pounds of weight to pull down the track.

4gear70
06-07-09, 06:39 PM
And here goes the excuses. What happened to the worlds fastest sedan? Maybe it should read..........New CTS-V, the worlds fastest 4,200 lbs four door because cars with 100 hp less are trapping the same mph! I'm sorry, but you can't claim shyt barely breaking 12's and trapping 116 mph:stirpot:


facts are facts!

There are no excuses. As difficult as this may seem for you to believe, the '09 V is the Fastest 4-door Production Sedan ever built. This is the part that infuriates you and you can't seem to come to grips with this simple fact.. that an American car, a Cadillac of all things, ran the 'Ring faster than any other 4-door sedan and did it on the competition's own track AND in their own back yard!
Now, out of the 227 different makes and models that have run laps on this very track, the '09 V ranks #54! (Dodge Viper SRT-10 and Corvette C6).... whereas the lowly Lexus ranked way back at #112 with a dismal 8:18 at 149...Pfft.

http://www.fastestlaps.com/track2.html

Facts ARE Facts!!

Btw, anyone that knows anything about drag racing knows that an 11.96 is known as 'breaking into the 11's'! Trap speed is indicative of HP but weight is a huge factor.. as a rule of thumb, every 100 lbs shaved is 1 mph gain (and a tenth off ET) Do the math! or pull a 600 lb trailer. Either way, the various times we are seeing from different drivers at different tracks are all very impressive with a 4300 lb car... that's right a Caddy!!

Now, what time was your mom coming by to pick you up?

McRat
06-07-09, 08:58 PM
From my experience:

All the soft drag radials and bias ply tires will lose MPH up top. The better the track is prepped the more they lose. Both our Camaro and Z06 lost 4 mph on the big end even with better ET's. Steel radials roll a LOT better.

Nittos are a trade-off. You lose less MPH, but you can't ET as well as the true race tires. The race is decided in 60'.

When we get our CTS-V past 500mi, we will get baselines, then first mod will be tires based on experience.

Who am I to say? Well we put an LS1 Camaro into the 12's stock, a 02 Z06 into the 11's stock, and run mid 10's in a 6400lb diesel 4x4. But it always takes seat-time and the right tweaks.

McRat
06-07-09, 09:09 PM
And here goes the excuses. What happened to the worlds fastest sedan? Maybe it should read..........New CTS-V, the worlds fastest 4,200 lbs four door because cars with 100 hp less are trapping the same mph! I'm sorry, but you can't claim shyt barely breaking 12's and trapping 116 mph:stirpot:


facts are facts!

Trap speeds are used for calculations. Drag racing decides the winner; there is more to it than meets the eye.

McRat
06-07-09, 09:15 PM
OPPSS!!! Where are my manners!

Congrats!!! :D Just a few years ago, you'd get kicked off the track for no rollbar. IN A CADILLAC!!! :D

c4ss
06-08-09, 12:36 AM
Way to compare a car that's going to be easily well over 100k to a CTS-V :cookoo:...and as far as most people are concerned...it's still a concept car! You Lexus fanboys crack me up :vomit:

Jesda
06-08-09, 10:09 AM
Guys, lets try not to be a-holes on the forum. You know who you are.

Florian
06-08-09, 11:43 AM
Vperl
8speed
4Gear


You are all on my shitlist. One more outburst from either of you and you will get a banning. Dont make me come back here.


F