Nitrous or no nitrous, these times and traps are absolutely phenomenal and deserving of congratulations!

Us C32 owners can only dream of seeing 12.08 @117 1/4 miles from our cars with the same degree of modifications.

 

boohooramblers, You'll have to educate me here a little. I just don't know that much about the MB's, but I thought the C32's had the same drivetrain the SRT 6 did, what do the C32's have different than the SRT 6?

 

Our cars are part c32 part slk32 and they weigh about 400lbs or so less cause the C32 is a sedan!

 

About three hundred pounds more curb weight.

C32 - Curb Weight: 3,540 lbs[source at link]

SRT6 - Curb Weight: 3,240 lbs[source at link]

Transmission ratios and final drive ratio appear to be a wash. [C32 source]

 

I knew that the SRT6's were part c32 part slk32 and figured there could be a few 100 pound difference, but I thought the drivetrain was the same.

I figured the SLK was basiclly the same as the SRT6, Whats the difference between the SLK & C32 drivetrain? I couldn't get the [C32 source] to open.

 

That's about all that's different! You guys have 18" wheels, right (versus our stock 17")? You'd think that would take a little away from your performance, but it certainly doesn't seem to do so in the least!
I'm assuming the ESP and ASR systems are the same between our cars also.

Either way, if you look at the fastest documented (i.e. Dragtimes) C32 (fongflex), the trap speeds are very similar. Where y'alls SRT-6's really shine appears to be in the first 1/8 mile.

Take MDSRT6's documented non-nitrous run:
1/4 mile is 12.103 sec at 115.25mph. 1/8 mile is 7.884 sec at 92.22mph. 60' time is 1.885 sec.

Take the fastest documented C32 run:
1/4 mile is 12.388 sec at 114.05mph. 1/8 mile is 8.018 sec at 89.98mph. 60' time is 1.863 sec.

While acknowledging that the degree of mods may not be directly comparable, and that we can generally agree that the trap speeds and 60' times between the two cars are kinda similar, the SRT6 is picking up about 0.2 secs in the first 1/8 mile.

Awesome stuff!

 

The SLK's curb weight is 3221 lbs.


Here's the gear ratio info from the C32 page I found.

Transmission type 5-speed automatic(C32 comes with 5-speed automatic only)

Transmission ratios
Final drive 3.06
1st gear 3.59
2nd gear 2.19
3rd gear 1.41
4th gear 1.00
5th gear 0.83

Reverse 3.16

 

I know it's just a G-tech meter, but I agree the SRT6's 1/8th time is where it really shines. The thumb I just copied from my gallery. When I use the G-tech, all launches are done exactly the same - TC on & stomp it, no letting up. You can see in the 3rd graph how much I'm loosing from the TC kicking in and it also reflects in the rotton 60' time.

 

I have to agree with MD-SRT-6, no ricers, just all mustang and LSX powered street vehicles spraying around here. It's an easy way to make power and if you get one or two big enough bottles, depending on your pill size, it would be hard to run out in one night of racing. N20 is perfect for drag racing, if you wan't sustained power for road racing or whatever then go another route, but don't down the guy for running a bad *** time.
I would like to run a 35 shot in the future just to cool the intake temps when summer hits.

 

I drive with DRs on my Charger most of the time and now that Nitto is making 20'' DRs I will be running them all the time. That's the reason why I don't run true slicks since I cannot use them on the street.

Also, you don't need DRs on the street to acheive the same performance as at the track with them...if you go from a roll on the freeway.

 

In real life @ a dragstrip a 2.041 60ft time and a 8.101 1/8th would net you maybe a 12.85 to 13.00sec run. But G-techs are good for rough estimates, but should in no way be used as gospel!

 

There are a few guys that are hardcore with the road racing. But it seems most are into the 1/4. I am going to try my hand at road racing this summer at Summit Point Raceway, Of course I will take the bottle out for this as it serves little purpose in that platform. It looks fun and a little more challenging than a 1/4 drag!

 

Damn buddy, are you trying to make me cry .

 

Steve, you mentioned your losses due to the traction control kicking in, is that the two dips in the graph that you're talking about? Or are those dips where your car shifted? How much better do you think it would have been with TC off?

The reason I ask, is that I just got my helmet and I'm planning to do my first 1/4 run this weekend. I haven't figured out how I'm going to launch yet. Some say leave TC on and just mash it. Some say turn TC off, rev to 2000 rpm, hold the brake, release the brake and mash it. Another said to have the car in 2nd gear for launch and then shift down for better acceleration after the car has taken off.

My first run, I will probably just mash it, since I'll be nervous and concentrating on watching the lights and not running into the wall. But after a couple runs, I'll need to figure out a good technique.

 

I had horrible runs all of last year with TC on. They were always .5 seconds slower. TC off, hold brake, rev up to 2k and enjoy the ride.

 

Thanks ChiTown. That's just the kind of info I need.

 

Thats exactly what I do, works well. And leave on the third amber bulb.

 

The two big dips are when the car shifted, the TC kicking in is at the very beginning of the graph. I done my runs with the TC on so I was comparing apples to apples. IMO, if you are running street tire's - TC off and roll into the gas pedal, don't stomp it. I would think if you are running slicks it probably wouldn't matter, but I'm not the guy to ask about lauching since I've never had my car at a track yet. But when I've tried to launch with the TC off, I wouldn't get much out of 1st gear because I would spin too much and the car went to 2nd gear.

 

Sounds like a concensus then. Thanks Steve and MD. I'll post my times over the weekend. I'm getting pumped. I hope it doesn't rain!

 

Tom I assume you are going to be doing test and tune runs only? If that's the case don't worry about cutting a good light, worry about your technique. Pay attention to all the prestage items you want to accomplish, staging your car and launching your car. It doesn't matter what your reaction time is unless your in competition, you'll still get all the numbers you are looking for. You can work on reaction time later, after you get comfortable at the track. A side note- don't sit in the lights too long or you'll just **** people off.