Renntech CL 55 Stage 6
Just one pic (teaser) of Stage 6 RennTECH.
Last edited by art@kronen; Apr 11, 2007 at 10:08 PM.
Dont see manycars running around with those these days

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1/4 time : 11.5 secs
Trap speed: 125 mph
Love that car. That is how a 5.5L amg V8k car should be modded!!!
Thanks
The Best of Mercedes & AMG
Love that car. That is how a 5.5L amg V8k car should be modded!!!
Thanks
Right now we have three Stage 6 cars.
CLS 55 Stage 6 (Miami)
CL 55 Stage 6 (Miami)
SL 55 Stage 6 (Scottsdale)
Right now we have three Stage 6 cars.
CLS 55 Stage 6 (Miami)
CL 55 Stage 6 (Miami)
SL 55 Stage 6 (Scottsdale)
From what i heard, Stage 6 is pushing high 600. Will be confirmed later.
Last edited by art@kronen; Jun 10, 2006 at 03:21 PM.
Pictures of the SL 55 Stage 6 will be available on Monday pm. Hopefully.
Last edited by art@kronen; Jun 10, 2006 at 05:56 PM.
Headers, larger crankshaft pulley, SLR styled intercooler system, air intake, air filter housing, ECU software upgrade, throttle body.
Again, i am sorry guys i couldnt get more pictures as fast as i would like. Please be patient.
Ted
As I study these graphs while contemplating engine upgrades for my CLS55, the biggest impact comes from stage 1 (ECU & Pulley, +51 hp, +38 torque) and then the stage 6 addition of the larger intercoolers (+51 hp, +8 torque). Airbox alone +15 hp, +14 torque; headers alone +24hp, +30 torque; airbox + headers +30 hp, +34 torque; larger throttle body +7 hp, +14 torque. I just derived these numbers from the graphs and I cannot attest to their accuracy in a real life vehicle, but it still shows the relative gains from each modification.
Cost of the stage 6 seems to be about double that of Kleemann stage 4. Kleemann doesn't offer the larger intercoolers but does change out the crankshaft, which Renntech seems to leave alone.
Despite the prodigious power of the supercharged 55k engine in the stock cars, there is a lot of untapped reserve if you want to spend the cash. This is one reason I went for a CLS55 rather than wait for a CLS63, even though I may or may not ever do any engine upgrades.





Last edited by Heisenberg; Jun 11, 2006 at 07:23 PM.
As I study these graphs while contemplating engine upgrades for my CLS55, the biggest impact comes from stage 1 (ECU & Pulley, +51 hp, +38 torque) and then the stage 6 addition of the larger intercoolers (+51 hp, +8 torque). Airbox alone +15 hp, +14 torque; headers alone +24hp, +30 torque; airbox + headers +30 hp, +34 torque; larger throttle body +7 hp, +14 torque. I just derived these numbers from the graphs and I cannot attest to their accuracy in a real life vehicle, but it still shows the relative gains from each modification.
Cost of the stage 6 seems to be about double that of Kleemann stage 4. Kleemann doesn't offer the larger intercoolers but does change out the crankshaft, which Renntech seems to leave alone.
Despite the prodigious power of the supercharged 55k engine in the stock cars, there is a lot of untapped reserve if you want to spend the cash. This is one reason I went for a CLS55 rather than wait for a CLS63, even though I may or may not ever do any engine upgrades.






...........You are making my point. Those graphs CANNOT be for the car that traps at 125mph as posted earlier. if you are to accept what was posted earlier that the car traps at 125mp......if you use a simple HP calculator then the owner of the car who's graph you've posted deserves a refund. The curb weight for a CL55 is 4300lbs, if you add a modest 50Lbs for the mods and 150lbs for the driver, that brings the weight to 4500. If you calculate HP using the trap speed method, then the CL55 with a trap speed of 125mph should be malking 686HP and 823Lbft of torque to THE REAR WHEELS!!!
...........if you use the 1/4 mile time method then you get 585HP and 702Lbft of torque AT THE REAR WHEEL!!
...........first of all, you can see how to spot nonsense........the trap speed and the 1/4 mile methods do not even match.
.................Here is a web page containing how to do the calculations. Try them yourself http://www.cprparts.com/HPcalculator.html
Ted
Last edited by Ted Baldwin; Jun 11, 2006 at 08:26 PM.
Ted
This car is not hot air...in reality its pumping a whole not more cold air than any other tuners car being that no one else has desiged a intercooler box like that. The junk seen in these AMG cars fromt he factory is just not up to the job and that SLR style box flows far better than stock and has less pressure drop due to resistance when flowing air through the cooler.
Last edited by CynCarvin32; Jun 12, 2006 at 12:40 PM.
...........if you use the 1/4 mile time method then you get 585HP and 702Lbft of torque AT THE REAR WHEEL!!
...........first of all, you can see how to spot nonsense........the trap speed and the 1/4 mile methods do not even match.
.................Here is a web page containing how to do the calculations. Try them yourself http://www.cprparts.com/HPcalculator.html
Ted
The figure given by Adam might have been a guess. But the CL55, CLS55, and SL55 with these upgrades are extremely quick and offer the best cooling system seen for the 55k vehicles.
As someone who has had many a track day destroyed (road racing) because the factory intercooler system on these Kompressor cars (v6 and v8) just cant keep up with even a lightly modified car I can really appreciate the work done on those SLR style coolers. Pumps and upgraded additional coolers are nice but the fact still remains that the factory cooler in the V of the engine is just not all that great. Having said that, the cooler made by RENNtech is almost like art.
Most people wont need a cooler like that but for the customers who do demand a car that has very controlled intake temps it is really the only option.






