cjbenavidez

Hey everyone just wanted to share, went to the drag strip on Friday and was pretty sure I was going to be disappointed with the stock tires but to my surprise they hooked super well and overall was very happy, almost to the point of I’m not sure going to drag radials would help enough to warrant the cost. But anyways only got two runs in as the line was an hour wait each time. A8, super small burnout, launch control both times while In competitive mode.

Luke C7

Nice numbers! I believe my I went roughly the same in my A8 16 Z51! 7.6# at 94-95 I think, I will try to find the slip and post it for ya, I can't wait to run this car with some comp tires. My goal is a 7.5 before cam or supercharger.

cjbenavidez

I’ll be back at the 1/8 mile track this Friday seeing if I can do a little better. I picked up some 19” sport cup 2’s that I think could help just a tad (they were given to me with 50% life left) so I’ll update after this Friday. Weight on the car right now is 3350.

Dcasole

Sport cups are not a drag racing tire , don't use them , you will NEVER get enough heat in them for them to stick
I though I would try them on my C6 , it was like being on ICE , watch this as my buddy made video . that noise you here is the tires all the way down the track ....

Dave

cjbenavidez

Hmmmmm. That’s interesting as they have to hook better than the stock PSS’s. I know it’s key not to do a long burnout with them. I have them on a extra set of wheels so it’s no biggie. I will report back Friday night and let y’all know how it went with them. Worst case the stickers go back on till I can get some Hoosiers.

Dcasole

No .. no .. they don't trust me , lol they are road race tire that depends on having a ton of heat in them at all times . The pilot sport is much better for 1/4 and 1/8 mile quick jaunts

I have a fist full of 1.7 and 1.8 60 ft times with the stock MPSS run flats , I also have a few videos I could share of me almost heading into the wall on those cup tires , which were newer

You want to go faster on street tires , till u get your slicks ,change out the runflats for non runflats .

Also dont run the car with Hoosers or drag radials with your runflats up front . Your cars back end will move around so much on the top end ... you will get the pucker factor plus it's not safe for the other guy ...

Dave

cjbenavidez

I agree with you on not mixing run flats with non...but why do the Z06 guys run better times with the sport cup 2's than they do with the MPSS? Ive seen countless guys with run better times with the SC2's just seems odd that its a extreme dry performance tire and wouldn't hook on a prepped drag strip. Figured I'd get a similar little bump in ET but if not ...yeah a little disappointment. Worst case ill do a light run to see how they hook up its a well prepped track and the MPSS hooked up better than any other regular street tire ive left on. its an 1/8 mile track so If it doesn't hook to start I def. wont be staying in it as the run would be blown anyway.

EcoBrick Bob

On a well prepared strip the stock PSS hook up fine.

cjbenavidez

no for sure they hook up fine, the issue was if the sport cup 2's would..could hook better. especially since its just an 1/8th mile track and 60' time is everything.

C2367

I could not hook with the OEM tires, tried but was dangerous so went home because I did not want to crash. I only race with DR's stock no tune Base A8 NPP dead hook most runs, this 19 run a little slower then the same 15. The 15 best in the 8th mile did 1.631 60' best ET 7.36 best MPH 97. The 19 has got 60' 1.68 ET 7.45 MPH 96.5 so it is not so fast and quick like the 15 was. Hope it wakes up soon so I won't be stuck with a dog.

cjbenavidez

7.3 1/8 mile all stock is pretty crazy. I hope to be able to get that soon. Not tonight but hopefully next friday will be running C5 z06 18" wheels with M&H 18" slicks. Considerable weight savings from what I am running now.

Dcasole

Did you try the CUP tires .....

With a 3500 DA, questionable starting line grip so I used Launch Control on oem run flats I pulled off a 1.7 60 foot
Next few runs were 11.6 and 11.7
I am happy with that time considering this is my grocery getter lol so no drag radials or slicks for me as I don't want to break stuff lol



Back in the day it would have cost some big bucks to buy a car off the showroom floor that could pull off consistent 11 second runs ... let alone be civil enough to drive every day

cjbenavidez

That’s about what I did with the stock run flats. I’m trying the cup 2’s tonight. We shall see what happens, track doesn’t start running till around 8:30pm for Friday night street cars. This is mainly just an experiment my final setup will be 18” C5 Z06 wheels with M&H slicks

C2367

You got a good one,with this 19 best at Fontana is 11.77 @ close to 119. Lanch control spins with a poor 60'. With the 15 best was 11.516 @ 120.90.

Dcasole

Good luck tonight !!

Dave

Dcasole

Yeah MPH is not as good as I would have liked but but the way home from making these runs ....on the HWY at around 70 mph , she broke a valve spring and you can imagine the ensuing carnage ..

I am sure that was the reason the MPH plus the DA which is terrible down here in the south , as to why the MPH was off

After spending 5 days at the dealer , a brand new LT1 , shipped from the assembly line and not from a GM central parts warehouse , was installed under warranty

Dave

cjbenavidez

Just to update from Friday night and how the sport cup 2’s did on the Z51.... well...only .04 better lol which prob wasn’t the tires and just an early run on the track. All runs were similar, had a couple bad ones where track was just not prepped as well. But anyways overall they were fine, they felt fine, I think both tires hook well at the drag strip. Hoping to get there this Friday with the new drag radials on. Should def see a bump in time. Almost ready to start nodding for more power.

60’ time was barely better as well. Still can’t seem to break 1.8 but it’s been pretty warm here in Houston.

Luke C7

Here is mine! This is my 2016 Z51 A8 (right side of ticket) vs 2016 Challenger Scat Pack (left side)

Travis Knighten

I have a 17 stingray non z51 , I ran a 8.2 consistent on stock tires in the 1/8th, added a z06 sway bar and it cut it down to 7.9, at 100 degress ambient launching at 1800 rpm with competition mode on, when it got down to 60 degrees ambient it ran an 8.3 every time from out pacing the tires , i just swapped to a nitto nto5 295 40 18 on an18 x 10.5 inch rim and added hooker Blackheart headers and insulated the intake manifold to help with heat soak in can share track results if your interested when I go Friday.

RPOC7R

I'm an experienced drag racer who is disappointed in the drag strip performance of my stock 2016 Stingray Z51 A8 on Michelin SS runflats. Car currently has 9,800 miles on odometer.

Two years ago at Bradenton, FL - TC off, - four second burnout - launch from idle (without Launch Control) - four runs - 1.72 to 1.75 60' times - 11.78 to 11.84 @ 117 -118 MPH. DA 1400'.

One year ago at Bradenton, FL - same burnout and launch as above - First run - 1.72 60' - 11.76 @ 118 MPH. Second severe wheel hop on launch - run aborted. DA 1100'. FT. Took car to dealer, had mechanic do visual inspection of rear suspension while car was on lift. No problems detected. Car drives fine on street.

Six months ago at Bradenton - same burnout and launch as above - First run 1.72 60' - 11.77 @ 118 MPH. DA 1200'. Severe wheel hop on launch - run aborted. DA 1200'. FT.

Other C7 on all three dates had no wheel hop issues.

Possible cause? Bad shock? Other rear suspension issue? Comments please. Thanks.