SLAMMED_C how fast is your car?

[C280Sportster]

Do you have 0-60 times and 1/4 mile times.

I'm guessing you should be close to a C36.

Did you do any weight reduction?


I'd love similar power in a C280, but I don't think it's it can be done without a S/C or Turbo.

I am looking at the powerchip from speedtuningusa, any comments on that?


You have a nice ride.

[MrSpace]

AFAIK there is no dyno, no 1/4 mile and no 0-100 info on his car.

I also canT' wait to compare my car with his

Etienne

[C280Sportster]

Originally posted by MrSpace
AFAIK there is no dyno, no 1/4 mile and no 0-100 info on his car.

I also canT' wait to compare my car with his

Etienne

His weblink says 245 HP and 255 ft/lb torque.

I'd would like to see the wheel HP as well.

I think free flow cats would help this setup also.

[jnenad16]

this is my modded C280 1/4 mile run:
14.6@93mph best run
15.4@90mph worst run

I ran 1/4mile at midnight, the temp was around 70F, and it was at sea level. I never dynoed my car, tho.

nenad

[Ashkan's C280]

you think kompressor and headers and maybe some high flow cats would take that time down to 12's?

[albanianbenz]

High 12s if your lucky, if your talking about nenad's c280.

[MrSpace]

must kompress a lot to get a C280 in the 12s... you won't do that with a M45

Etienne

[Ashkan's C280]

well if you had a cai headers high flow cats exhaust pullies and the BD-11a in neneds car why wouldn't it make that speed, he has the plugs mag wires and a chip i think not sure though, that would put him well into 400+ range np maybe 450

[jnenad16]

these were the mods I had on my car at the time of 1/4 mile run:
3.2L engine
sport exhaust(hi flow cats, straight thru resonator and muffler)
custom made CAI
17" amg's
225/45/17zr Michellin Pilot Sports
H&R sport springs
Bilstein Sport shocks
EBC green stuff front pads
EBC cross drilled and slotted front rotors
Satisfied Pro Performance rear pads
SplitFire spark plugs
Kingsborne 8mm plug wires, new coil ends
Super Fuelmax fuel magnets
tornado
new O2 sensors
dyno tab octane booster(essential)
1/4 tank of gas
redline 10w-30 w/pro-blend drag racing treatment is a must for the 1/4mile runs, keeps engine cool and prevents overheating)
B&M synthetic trick shif in tranny
redline 75w-90 in the diff
water wetter and water in the cooling system, no antifreeze
G-box tri-stage performance module(one of those off ebay)
maybe a few more mods, I just cant remember since I dont have my C280 anymore.

the key to getting a lower time is to start with the shifter in 2. this will automatically start the tranny in 1st gear, go thru the 2nd, then when you hit about 4.5-5k rpm's, quickly move shiter in 3 and leave it there(so the tanny wont shift into 4th). this is how I did it when I got the lower time(14.6). also make sure your alignment is good, otherwise you will lose a few tenths of a second trying to keep it straight.

nenad

[CKlasse]

Originally posted by Ashkan's C280
well if you had a cai headers high flow cats exhaust pullies and the BD-11a in neneds car why wouldn't it make that speed, he has the plugs mag wires and a chip i think not sure though, that would put him well into 400+ range np maybe 450

400HP ???:rolleyes:

[speedybenz]

400Hp is near impossible from a 320 engine Mercedes or any engine of that size unless you have some rpm to play with.

80 ft-lbs of torque to around 85ft-lbs is about the max for an engine with a Volumetric Efficencey (VE) of 100 percent or slightly better.

So if you you have a 3.2 liter engine then you are looking at about 256 ft-lbs of maximum torque. At 6000rpm the maximum Hp would be: 256ft-lb x 6000rpm/5656 = 271Hp. Just a little short of 400Hp.

Now if you could spin the engine to 9000rpm you would get a theorectical 407Hp.

Jeff

[C280Sportster]

Originally posted by speedybenz
400Hp is near impossible from a 320 engine Mercedes or any engine of that size unless you have some rpm to play with.

80 ft-lbs of torque to around 85ft-lbs is about the max for an engine with a Volumetric Efficencey (VE) of 100 percent or slightly better.

So if you you have a 3.2 liter engine then you are looking at about 256 ft-lbs of maximum torque. At 6000rpm the maximum Hp would be: 256ft-lb x 6000rpm/5656 = 271Hp. Just a little short of 400Hp.

Now if you could spin the engine to 9000rpm you would get a theorectical 407Hp.

Jeff

Good post. makes me think of something.

Is there any way (chip?) to increase or RPMs? Maybe to 6000, I'm sure MB has is de-tuned a bit.

[jnenad16]

Originally posted by speedybenz
400Hp is near impossible from a 320 engine Mercedes or any engine of that size unless you have some rpm to play with.

80 ft-lbs of torque to around 85ft-lbs is about the max for an engine with a Volumetric Efficencey (VE) of 100 percent or slightly better.

So if you you have a 3.2 liter engine then you are looking at about 256 ft-lbs of maximum torque. At 6000rpm the maximum Hp would be: 256ft-lb x 6000rpm/5656 = 271Hp. Just a little short of 400Hp.

Now if you could spin the engine to 9000rpm you would get a theorectical 407Hp.

Jeff
the master has spoken.:D

nenad

[MrSpace]

Jeff: you mean for an N/A engine, right? Because the C230k already has stock 37lbs-ft/liter and the turbo'ed 2.3L has 256hp at the wheels from a 2.3L, that means 300 at the crank. that's 130lbs-ft per liter.

Etienne

[Ashkan's C280]

well I was counting on the bd kompressor to add 150+ I know fleeman kompressors can add up 200, so I thought 150 would be fair, and the other stuff would make up for it, but I was wondering if you kept rpm the same, would boreing it out take it much higher than kompressor would, lets say 1 lt bore on the 2.8 to 3.8, wouldn't that be around 300 range?

[jnenad16]

Originally posted by Ashkan's C280
well I was counting on the bd kompressor to ass 150+ I know fleeman kompressors can add up 200, so I thought 150 would be fair, and the other stuff would make up for it, but I was wondering if you kept rpm the same, would boreing it out take it much higher than kompressor would, lets say 1 lt bore on the 2.8 to 3.8, wouldn't that be around 300 range?
M104 engines cant be bored out more than 1-2 mm, the only way to increase displacement is to increase the stroke. but this is not a way to go if you want a racing car, since the engine will rev very slowly.

nenad

[Ashkan's C280]

mkb can bore it out to 3.8 and produce a 300hp mark, and as for the slower rear, what if the gear ratios were changed, would that fix the problem? at the very least if the m104 engine was bored to the same as the c36 which is 3.6 it should get the sameamount of hp too, then take it one step further to 3.8 and move past it, and add the kompressor, you should be in high ranges right?

[jnenad16]

Originally posted by Ashkan's C280
mkb can bore it out to 3.8 and produce a 300hp mark, and as for the slower rear, what if the gear ratios were changed, would that fix the problem? at the very least if the m104 engine was bored to the same as the c36 which is 3.6 it should get the sameamount of hp too, then take it one step further to 3.8 and move past it, and add the kompressor, you should be in high ranges right?

M104 is bored to the safest width with the 2.8 engine, the 3.2 and 3.6 are not bored, but stroked(as I explained a few times before). the gear ratio will alter the torque supply to the wheels, but not the acceleration of the engine. I think you could hit the 300hp with the 3.8 displacement, but it will be a slow way to the top, but you might be able to get higher redline(if you can get a chip to remove the limiter).

nenad

[VIP_MBZ]

On a Supra JZA80 (3.0L 2JZ-GTE) It took us 14 psi of boost (stock twins), upgraded intercooler, full 3.25" exhaust (with no cats), 264 duration cams, and 550cc injectors to crack 450 rwhp. Thankfully the 2JZ-GTE is one of the most overbuilt motors on the planet, and 14 psi is barely breaking it in (which is why you see so many Supras with 4-digit horsepower numbers).

Doing it with the MBZ 2.8L naturally aspirated? Never gonna happen. Supercharged? Maybe, with over 20 psi, if the motor doesn't pop first.

400+ is a priveleged league that not all low-displacement motors can achieve, regardless of mod level.

-Ray

[mayagman]

Tearing a 2.8 i6 apart I've had a bit of a look at the internals.. Unfortunately the stroke and rev limit are our limiting factors when it comes to a drastic increase like 400hp. The engines are built to a pretty good tolerance, but theres always room for improvement. Raising the redline requires more than just a chip. Youre talking about stiffer engine components that can withstand the additional strain of higher rotational speeds. Rods, pins, etc which you will be replacing anyway need to be more resiliant, and significant changes need to take place at the top end too. Faster reacting, higher pressure springs, adjustments to clearances... lots of things to be considered. It would be very difficult, if not impossible to achieve these numbers from bolt-on additions to this motor. High pressure supercharging can get you some of the way, but not without its toll on your powertrain.

[stox]

Originally posted by jnenad16
M104 is bored to the safest width with the 2.8 engine, the 3.2 and 3.6 are not bored, but stroked(as I explained a few times before).
nenad

I'm sorry, but you're wrong. The AMG 3.6 was bored 1.1mm up from the stock engine. However, the stroke was the major change, from 73.5mm to 92.4mm.

[jnenad16]

Originally posted by stox
I'm sorry, but you're wrong. The AMG 3.6 was bored 1.1mm up from the stock engine. However, the stroke was the major change, from 73.5mm to 92.4mm.

I'm sorry, too. I believe I mentioned it in one of my previous posts that you could probably bore additional 2 or 3mm out of the 2.8 104, but I didnt want to go into it again.

nenad

[SLAMMED_C]

WOW.. I really dont pay attention to threads in here sometimes!!!

Well Im not completely sure how fast my car really is... I havent dyno'd it yet, and the horsepower and torque figures I have come up with are estimated at the flywheel based on mods I have done.

I will for sure dyno my car soon.. but I have a few projects on my car to do in the meantime..
the #1 being the cold air intake Im building.. which is done and ready to be installed when I get 3 more intake pipe hose connectors from my buddy.. hopefully this weekend, with the install now slated for early next week.
To see pics of the intake... Intake Pics (http://www.cardomain.com/memberpage/266992/9)


I bought a Beltronics Vector V2 accelerometer a few months ago.. havent played with it too much (due to the crappy winter weather we were having!).. but on a mild day, roads slightly wet with slush and on winter tires (225/45/17) I did a 0-100km run in 5.82 seconds.. was a really poor start.. lots of tire spinning!!.. but I will need to play with it again soon as there is some pretty nice weather right now.. still on my winters though!.. looking for new wheels right now.
Im sure I could get my time to 100km in around 5 seconds or under!
the Vector also does 1/8th mile 1/4 mile times, anything you can think of it can do!

as for other mods..
-Im going to be doing an all custom boost side of the intake tract.. 3" intake tube with custom intercooler (larger) and 3" intake tube all the way to the TB.. with custom flanges at each end of course.
-Im thinking about the supersprint header with a high flow cat and maybe new custom exhaust.
-Im looking into cams right now..

So I do have a few more mods planned... to hopefully get my car pushing 300hp at the crank.

[MrSpace]

I'm in extensive cam research right now, tell me what you found, maybe we could add our infos.

I found ~6 different grind sets for our cars now, plus 2 more that are more "race" setup. I also found a place where they can regrid our cams for really cheap...

The thing is to determine the best setup (angles)...

Etienne

[MrSpace]

and I checked your intake thing, I might do something similar this summer.

Man that SC part is small:(

Etienne

[coolcarlskic43]

Originally posted by Ashkan's C280
you think kompressor and headers and maybe some high flow cats would take that time down to 12's? Those are high hopes you have there.. The C32 does low 13's and high twelves with a good launch .N/A E55 does low 13's.M5 E39 low 13's high 12's.Like I said HIGH HOPES. Turbocharge the C280 motor and mid to high 12's are very well possible.

[fever]

Dropping two seconds to 100KM with only an additional 60 ponies at the fly? Are you sure that's correct?

[MrSpace]

Originally posted by fever
Dropping two seconds to 100KM with only an additional 60 ponies at the fly? Are you sure that's correct?

I'm pretty sure that's not correct, I would be really surprised.

I'd really like him to ge ton a track or at least a dyno!!!

He should come to montreal we could track and dyno our two cars at the same time and see the advantage of his chip and intake over my setup.

Etienne