Hi Boost C55
I've heard from Kleemann and also spoken to BlkBnzz and others who have the 113 SC'd and they all seem to advise that 10 psi is ok for a "stock" engine. Like AMG SC says, its above that where the issues are. The stock Kleemann SC installed in the C55 pumps out about 5-7 psi and can go to about 10-11 with a smaller pulley. Mine ranges , depending on the fuel and the dyno between 5-7 psi. The biggest issue is the MAF seems to not like high boost on our cars and also fuel delivery. If anyone knows of a smaller pulley available for my Kleemann and has one to sell, let me know in a PM please. I'd like to go to 10 where Alumar's was before he sold his car.
Ahmad , I believe, didnt have those problems with his "smaller" pulley on the Kleemann?? My fear is that I go with the ASP crank pulley and then I run into the same issues as the C32 with the pulleys and bearing??
My boost dropped almost in half with the installation of the p/p heads.
This sounds like a BEAST OF A BUILD! Forging new ground in the benz mod world is NOT cheap, so I have much respect for your intiative, and flowing of the fun-fundage

Having recently come from the vortech centrifugal _non-intercooled_ mustang world I'm very impressed with my kleemann setup as a daily driver in 105 deg F Heat.... no noticable heat soak, idles/drives near stock, 23mpg on the highway.... and whoa the power is sick. I can only imagine how it will feel in 40 deg air this fall!
Great Build.
Last edited by betrezra; Aug 3, 2011 at 09:15 PM.
I remember you strapping your car to Josh's dyno at HOP like 5 years ago with an HPS II and good intentions. That and you bought me some Del Taco
thanks again. I can't beleive I'm still reading about this car.Good luck with everything. You handle your hobby very well, I know I would have lost it a long time ago.
The Best of Mercedes & AMG
Keep in mind Rich is only going to give you the power he feels it safely can put down. Also the driveability of your car is going to be at a place it hasn't been in years. I think you are really going to enjoy the car when its all said and done.
The more I read this thread, the more I want a C55 with a true 55k motor. if I was doing it again I would just do a whole motor swap with a trans build.
Keep in mind Rich is only going to give you the power he feels it safely can put down. Also the driveability of your car is going to be at a place it hasn't been in years. I think you are really going to enjoy the car when its all said and done.
The more I read this thread, the more I want a C55 with a true 55k motor. if I was doing it again I would just do a whole motor swap with a trans build.
A 55K motor transplant caused alot of ECU compatibility issues for quite a few people on this forum. Do you know of anyone that had a 100% successfual transplant (all electronic and engine functions working flawlessly? If so, then a transplant might be the easiest and cheapest way to go on this chasis.
Last edited by AMGSC; Aug 4, 2011 at 07:40 PM.
I don't get too caught up in dyno sheets.... too many variables with software, weather, etc..
I used to work with a guy (f-body stroker dude)..... who carried around a copy of his dyno sheet in his shirt pocket..... he'd whip it out for anyone who would listen or doubted how fast his car was..... get real>
Please post up some pics/vids when you get her in your hands.
Jeff
A 55K motor transplant caused alot of ECU compatibility issues for quite a few people on this forum. Do you know of anyone that had a 100% successfual transplant (all electronic and engine functions working flawlessly? If so, then a transplant might be the easiest and cheapest way to go on this chasis.
and TCU as well , just ask Rcompart about the SRT conversions he's done. It takes a LOT of time and a LOT of $$$
With lower compression pistons, ported heads, large valves, long tubes, exhaust, etc...this 2.0 litre Kleemann twin screw is running out steam at only 10psi. If you look at the dyno chart from my post up above that the boost is starting to drop after 4500 rpm. This is a sign that the SC cannot keep up with the exhaust system anymore at 10psi. In reality on a stock motor an SC'd C55 with a 170mm crank pulley and a 65mm SC pulley should crank out about 13.5psi. Nevertheless, this SC is maxed out. Sure leaving the pistons at stock compression might get me a few more ponies but not sure it would be safe at 13.5psi over the long run at 11:1 CR ratio.
So this experiment is officially over as far as getting power levels up to a stage 5 E55 which I've seen dynos charts on this forum as high as 570rwhp on a dynojet. I think the final 100 Oct tune will come in officially at around 480rwhp/530rwtq on Dynocomp's DD Dyno by Monday or Tuesday in 109F local temps. Still I'm happy that I'm getting a car back that is going to drive as smooth as stock on 91 octane and with a flip of the RAT switch get me close to 500rwhp on 100 octane map once I get the car back to LA. I will take her to the drags in Sac or Famoso in September or October on a cooler evening and see if it will run some low 11's and maybe even 10's once I install a 150 shot nitrous kit.
The E55 supercharger is actually smaller at 1.8 literes vs. the Kleemann 2.0 litre that I have.
Here is the key reason why the AMG/OEM SC's make a bit more boost. The rotors inside the E55 SC are aluminum and hollow vs. the Kleemann SC rotors which are solid steel. This makes the E55 SC lighter and thus takes less crank HP to spin. Secondly there is a 2 to 1 step up gear inside the E55 SC that spins the rotors twice as fast as the Kleemann SC with the same diameter pullies. All this information comes directly from Cory and Brandon at Kleemann USA headquarters.
The E55 supercharger is actually smaller at 1.8 literes vs. the Kleemann 2.0 litre that I have.
Here is the key reason why the AMG/OEM SC's make a bit more boost. The rotors inside the E55 SC are aluminum and hollow vs. the Kleemann SC rotors which are solid steel. This makes the E55 SC lighter and thus takes less crank HP to spin. Secondly there is a 2 to 1 step up gear inside the E55 SC that spins the rotors twice as fast as the Kleemann SC with the same diameter pullies. All this information comes directly from Cory and Brandon at Kleemann USA headquarters.
I'd love to take the autorotor to at least 8-10. I have the same SC set-up as you, the 2.0 autorotor which is NO longer made.
Love your build man! Awesome, can't wait for some 1/4 mile traps/.
I have not heard back from dynocomp after leaving messages. I hope nothing went wrong with high octane map. I can't wait to get her to the track after I pick her up on Friday.
I have not heard back from dynocomp after leaving messages. I hope nothing went wrong with high octane map. I can't wait to get her to the track after I pick her up on Friday.
The Autorotors were of Swedish design and build I believe. I think Kenne Bell made some that are very similar to the Autorotor as well.
Last edited by Newzchspy; Aug 13, 2011 at 09:26 PM.
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Love your build man! Awesome, can't wait for some 1/4 mile traps/.
Autorotor is no longer in business...........
I guess I can't believe everything you see on the net LOL.
I know my engine will last a lot longer with a modified lower compression pistons and rods but my concern now lies with how long my SC will last spinning at near maximum capacity. Maybe time to slap a Kenne Bell 2.4Litre on it.
Last edited by AMGSC; Aug 18, 2011 at 10:04 PM.
Take it to work, take it to get groceries, take it for a pointless night time or weekend drive, take it to the drag strip, take it to road circuit........it doesn't matter, just DRIVE IT AND TELL US HOW IT FEELS!!!
Last edited by PC Valkyrie; Aug 18, 2011 at 09:43 PM.



