CL65 dyno questions
10-05-2011, 12:56 PM
#1
Member
Thread Starter
CL65 dyno questions
Well, going to dyno the car this weekend on a dyno dynamics dyno. I plan on putting it in dyno mode but have a few questions:
1) How do you put it in dyno mode?
2) Best gear to run (3rd maybe?)
3) Any other hints/tips?
4) Best PSI
I'll post up numbers, pics and maybe a vid, too. Hoping to hit about 500rwhp or so. Put new pilot sports on last weekend so that should help.
1) How do you put it in dyno mode?
2) Best gear to run (3rd maybe?)
3) Any other hints/tips?
4) Best PSI
I'll post up numbers, pics and maybe a vid, too. Hoping to hit about 500rwhp or so. Put new pilot sports on last weekend so that should help.
10-05-2011, 03:19 PM
#2
Super Member
turn the key to power on (dont start)
hit the reset button 3 times until UV:13 pops up
hit the menu until the word dynomometer pops up
arrow up or down and your safety nets shpuld be disabled
i could be wrong on some of this as i have not tried since last may, but i can always go to the garage and recheck if you come into some trouble.
4th gear. hammer it down just before hitting the kickdown button under the pedal. if you mash the gas it will down shift and screw the run
btw, how are new tires going to help on the dyno numbers?
hit the reset button 3 times until UV:13 pops up
hit the menu until the word dynomometer pops up
arrow up or down and your safety nets shpuld be disabled
i could be wrong on some of this as i have not tried since last may, but i can always go to the garage and recheck if you come into some trouble.
4th gear. hammer it down just before hitting the kickdown button under the pedal. if you mash the gas it will down shift and screw the run
btw, how are new tires going to help on the dyno numbers?
Last edited by 02cl55amg; 10-05-2011 at 03:23 PM.
10-05-2011, 08:39 PM
#3
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w215 cl65, W212 E63, R53 Mini Cooper JCW, E92 328I
mistake i made was not telling my dyno guy to hook up the boost gauge so you know your boost presssure. so make sure you hook that up and let me know what your boost is stock 
becuase i cant boost over 15psi
stock is around 1.5 bars - 22psi MAX
and another tip maybe it might help.... after your first dyno run.. count how many runs it takes intill your coolers get hot and the power starts dropping est. 10-15 hp on the run... just for refrence, based on if your pump is good or not. or if your racing some one you know after 3 runs you start loosing power... i lost about 20hp from first run to 3rd run. which i had a feeling i was heat soaking then
if they have not ran a powerful mercedes on there dyno before make sure they block/chock/strap the car really good becuase this monster mercedes has allot of TQ and will want to jump off the dyno... its not a 140 hp 98 TQ honda
becuase i cant boost over 15psi stock is around 1.5 bars - 22psi MAX and another tip maybe it might help.... after your first dyno run.. count how many runs it takes intill your coolers get hot and the power starts dropping est. 10-15 hp on the run... just for refrence, based on if your pump is good or not. or if your racing some one you know after 3 runs you start loosing power... i lost about 20hp from first run to 3rd run. which i had a feeling i was heat soaking then
if they have not ran a powerful mercedes on there dyno before make sure they block/chock/strap the car really good becuase this monster mercedes has allot of TQ and will want to jump off the dyno... its not a 140 hp 98 TQ honda
Last edited by freestylebiker3; 10-05-2011 at 08:41 PM.
10-05-2011, 08:57 PM
#4
Member
Thread Starter
The new tires will help because the old ones were worn so bad traction would have been an issue! They run high HP cars alot. They had a guy run his SLR not too long ago. I'll make sure he hooks up a boost gauge. Where are you pulling vacuum at for that? What about the tq hook up?
10-05-2011, 09:04 PM
#5
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w215 cl65, W212 E63, R53 Mini Cooper JCW, E92 328I
(CL65) make 158 more torque then the slr so im sure there wont be a problem but better safe then sorry, my car almost came off the dyno...
for boost you will find a 5 inch vacume line going from the passenger side aftercooler thats on top on the engine. you willl see this vacume line that goes from the aftercooler to the pressure sensor so all i did was tap in to that line with a T-fitting
for boost you will find a 5 inch vacume line going from the passenger side aftercooler thats on top on the engine. you willl see this vacume line that goes from the aftercooler to the pressure sensor so all i did was tap in to that line with a T-fitting
10-06-2011, 03:14 PM
#6
MBWorld Fanatic!
Does dyno mode also turn off the self leveling suspension? Last thing I want to happen is the car gets strapped down and it wants to raise itself up damaging the suspension.
R.K.
R.K.
