chief63

Very nice numbers! As I mentionned, weight of he car is the enemy, that's pretty much it. You'll see a lot of street cars that are running under 10 seconds are extremely light (and have tons of hp). To run low-mid 10s with 4000lbs (now less with the roof and other upgrades) you will pretty much need 1000HP+.

The bugatti veyron runs mid to high 10s with 1000hp and 4300lbs, I guess that's a pretty good comparison.

blackbenzz

1000+hp to run mid/low tens? I strongly disagree. Even in a 4000lb car

vinnyz

here's a bugatti times ..........Performance

Max speed 252.34 miles/h (407 km/h)
0-100 km/h 2.5 seconds
0-160 km/h 5.1 seconds
0-200 km/h 7.3 seconds
0-300 km/h 16.7 seconds
Quarter mile 9.95 seconds
0-100-0 mph 9.9 seconds
Engine

Power 736 kw (987 bhp / 1001 ps)
Torque 1250 Nm (925 lb-ft)
Displacement 8.0 liters
Engine type W16
Engine location middle .. where u see mid 10's at cause i dont

JrocSRT10

Dad's car has 10's in her already. Its just a matter of time.

No reason why this car shouldnt be hitting 10's with 600-650whp.

Im more of a trap guy, and I cant wait to see the first guy trap 135 with one of these.

Dads C63

I have to agree that with th HP we are putting out we should be running 10's. However, the quest is more challenging than expected. We destroyed the stock converter last week and are putting a better built stall 100% lock up converter in her next week. Then back out to the track to find the next weak link.

We have the power built in, now its just getting the other parts dialed in. The weight and gearing is a challenge with a 2400 stall (stock), going to be a 2800 stall tight converter. However, we are limited with tire size even though we have had NO traction problems. We can't change the rear gears or go with a complete bias ply slick(crinkle wall) drag tire. We have to determine when the nitrous can come in and back out in order to let the ECU work its magic changing gears etc... If you watched the last videos we were able to get the tranny to change gears because of the nitrous ramp out but took the converter out in the process. I am not surprised because this car has LOTS of 1/4 mile passes on it along with road racing and 60-130 passes. It has 28,000 hard miles but held up incredibly well. You all should feel 100% confident that MB/AMG has built an excellent car mechanically.
I think we are ironing out all the bugs and will give a complete report when done.

Please remember that we are still running a full interior(except passenger seat) with a 52# roll bar added, also there is over 100# of goodies in the trunk now that seems to be helping with traction.

We will hopefully be back out the end of next week sometime ready for more testing.

Mrbig

once u get those issues resolved your well into the 10's easy i wouls even say 10.50's for sure fast car !!!

chief63

Well the first link I found on google was http://www.bugattipage.com/ride.htm (10.8 secs)

Drag times search showed

10.200*#142.000 Bugatti Veyron 16/42006 NA 10.410*#139.100 Bugatti Veron 16.42006 NA 10.410*#139.910 Bugatti Veyron 16.42006 NA

I was not talking about the world record, just the original stock veyron.

At about 800 crank HP (dads c63), if the car is running 11.11, the leap is huge to go to let's say 10.2. 100-200HP more sounds about right, which brings it to around 1000HP, or significantly lower that car's weight.

Bottom line you'll need a much lighter car or 100-200HP more to run low 10s. Was I that much off?

It was not a complaint, just an example of how much hp you need to run 10s with that sort of weight....

chief63

Also just as comparison's sake since it's a car I actually drove, an AC shelby cobra which weighs around 1100kg (almost half the stock C63) with 680HP had a best run of 9.80 seconds @ 142 mph on the 1/4 mile. Low 10s is extremely tough... I don't want to be a downer, it's just extremely though.

wankeldude

This car: http://www.youtube.com/watch?v=FINJgXBRvTY

Ran this in the quarter: http://aamcompetition.com/n-1754-aam...artermile.html

with 675 whp and weighs pretty much the same as a C63

chief63

The GTR is AWD and its transmission is pretty high tech. The stock version does the 1/4 mile in about 11.6 seconds, with similar HP (30hp more) and very similar weight too.

They are 2 cars that are very difficult to compare. A C63 with 675whp would probably be slower than 10.3...

SonnyakaPig

This is an interesting discussion. And first, let me say, props to Dads, on an excellent time and trap on your recent run. I can't wait to see the results when you break into the 10's. I'm still amazed by your 60-130 time.

For comparison's sake, I know of a 2010 Camaro SS (automatic trans), with a Kenne Bell Blower, stock axles, stock suspension, and roll cage in the back of the car, that ran 10.5 in Vegas. I believed it trapped over 130 mph. It was pushing like 16-17 psi of boost and making a little more than 650 rwhp.

The Camaro's weight is very close to the C63, so I believe the C63 has the same potential with a good spray setup.

Edit: Here is a video of the Camaro running a 10.9 at 124.86. The car has run faster since then. But, it's interesting to see that Dads car has a higher trap, so it's just a matter of time before Dads car is in the 10's and realistically, mid 10's. http://www.youtube.com/watch?v=-NNAvPbRXaA

RStevens63

Dads car will run 10s for sure only a matter of time to get it dialed in!! Comparing to a GTR is cool but the cars are not equal by a longshot even though they weigh almost hte same.

JrocSRT10

The GTR's tranny is worlds different from the 7speed which really helps the car out. My buddy with 520awhp did a 11.2 at 127.

With a tune and mid pipes only. Crazy mod responsive car, but that what happens when you buy a turbo car out the door.

I doubt the c63 will ever be an animal at the strip that other cars such as GTR's, z06's 911tts(trapping 140+, going over 200 in the mile) . But the car will be the leader in its class by a long shot!

Heard they have a turbo kit out for the e90/e92 m3 now, lets see if they could pull of some of the things the e46 do with the hpf kit.

(highly doubt it)

Dads C63

I'm just excited to be in the same company as a modded GTR and blown Camaro. LOL

If ANY of you have suggestions on how to put this car into the 10's I'm listening. I am asking that seriously, not with any sarcasm. Many on this forum are long time drag racers and I would welcome any suggestions you may have.

I am confident we'll get there but if you have any short cuts I am all ears.

JrocSRT10

You're so close you honestly just need some weight reduction. What wheels do you have on there? Freeing up some rotating mass will do wonders.

Since you're a nitrous guy now, it gets somewhat expensive but what about direct injection. 15-20shot per cylinder.

NANO system....

Seeing as your in central FL, you could skip all of the above and get the car tuned for e85. knock proof.

Even Money

how about a water/meth injection?

superlubricity

You've got all the power you need, you just need to hook.

If I were in your shoes I'd be focused on traction and dialing in the right amount of power/torque to lower your 60' time. That's all that's keeping you from getting into the 10's now. A mid-1.7 60' or better and you are in.

c32AMG-DTM

Keith's been saying that hooking isn't the problem, though (I think... not to put words into anyone's mouth) - it's the trans holding the power w/o slipping. Hopefully the new TC and refreshed internals will fix this...? I agree on the power, though - the power's there for 10's... probably even deep into the 10's. Just gotta get that power down the track.

Would this help, though, since he's already running nitrous aka "DA in a bottle"?

Now THAT's an intriguing idea... the world's fastest C63, corn-fed. Seriously, though, that's thinking out of the box and would be great to see what results an E85 nitrous tune would put down.

superlubricity

Yeah, I re-read post 180. If he's hooking dead now, he needs to find a way to get out of the hole quicker. Those 1.8X 60' times (at that power level) are what's holding the car back.

The higher-stall torque converter is a good place to start. The right design can significantly improve torque multiplication and that will certainly get that 60' down. I remember the old F-Body days and the 9.5" Precision Industries Vigilante 2800 stall converter. I had one in the 700R4 in my blown 96TA. The improvement was huge out of the hole. I cut a 1.69 60' on 15" Nitto Drag Radials.

A more advanced N2O controller might also help get those wheels spinning out of the hole. Then it's just a matter of dialing back until those tires are right on the edge of letting loose.

Dads C63

Thanks guys,
As long as the new converter will work as planned I think we will be fine. Hopefully we'll know by the end of next week. Will keep you posted.

j0wa

crazyyyy fasttt

callmiro

Instead of running the nitrous controller, have you thought about running it off a button and trying to get a more full shot out of the hole?

propain

Bingo! Tub it out, shorten the rear and get some slicks on the pavement.


Edit: Not even sure if tub the C63 is even possible. lol

Boost Gomez

At that point, he should just get another car.

mthis

Call me crazy but I think you losing time from changing gears from 4-5
4th is sport changes at 127-128 but in M it goes pass 130. Now what would happen if u do the same At the track as u do when doing 60-130 runs.
What u think?