davidre85

Long story short; I have a w209 CLK55 AMG (M113 E55 engine) and I need the head taking off to skim the bores... this costs quite a bit of money, so I'm tempted to get the whole thing rebored out to a larger capacity (is it possible to 6.3?)

Has anyone done this? what do I need considered?

Would appreciate any feedback!

PTE

You are right . this is a pretty big under taking. You can get .010 / 1/4 mm oversize pistons from Mahle. OR You can have 8 new Iron sleeves install and go from a 5.5 to 5.7 with Custom forged pistons , but 6.3 would mean a custom Stroker kit. MAJOR BUCKs. And what is happening to the current motor that makes you want to go this route I could sell you my whole car for , what this job will cost.
Cheers _PTEngineering

davidre85

Well this is a crazy story which has actually turned out ok...

I was told by a garage that my car was burning oil - which is seemed to... and that the engine needed to be horned? anyway, I was told if i'm getting that done I might as well do my tuning at the same time!

It turns out, the oil level sensor was not working correctly and I was over filling with oil but the car gave no alerts to this... it was just burning all the over filled oil. Strange thing was that every 200-300 miles the car was alerting me "add 2 liters to reach max point!"

I do also have a small few small leaks, but the cars getting sorted now!

Just about to order a dip stick from Merc... NEVER trusting the sensor again.

PTE

Kool deal , But to replace the float & sensor assy. Your car has a tube on the passenger side rear between the valve cover & the fire wall. It has a cap. to remove , then insert a dip stick. you do not leave it installed while driving. Use it just to check the oil level. Then store it in a clean sleeve and keep it in the trunk. Cheers _PTEngineering

davidre85

Thanks for all the help! little question - do you know the part number for a dip stick... Merc say there isn't one

M-bENZ

that whats I was told too...there is none available for CLK500 or CLK55.

Andy

PTE

Baum Tools P/N 120-0721 Covers 1996 - 2004 They have a internet sight or
1-800-848 - 6657 www.baumtools.com Cheers _PTEngineering

buffyclk500

evo sport did a 6.1 a ways back

Havoc

...and evosport is about to go even bigger!

sprins

Brabus did 6.1 also if I recall correctly

AMS Performance

be careful though, once you start boring & stroking a motor to death it will become unreliable and run into issues. That has always been the issue with stroker kits, they often times become very problematic and are rarely good daily drivers. 5.8 is pretty easy, going beyond that is possible but may not be worth it in the long run.

Then again ... if you have bottomless pockets ... why not

betrezra

People are running 347 strokers from 302 blocks with good success. The tq is wonderful.

To be honest I'd take a stroker over a supercharger any day....... but it seems the kleeman is the lower cost option/hp than the 6.1 stoker.

Now the kleeman on top of that stroker ? Hmmmmmm.

Havoc

True! Don't forget the 383 and 400 strokers from chevy 350s which dominated the small blocks.

I'm currently rebuilding my 55K. I plan to max out the stroke, increase the compression, crank up the boost, and run the *** out of it!!

David_AMG

The last thing you want to do is increase compression if you intend on increasing boost from your supercharger. If you do so, you will have major detonation problems or will be forced to get racing fuel with an octane rating 100+ which is hard to find most places. You actually want to lower the compression if you want to over boost the blower. I would make sure to check with an expert on forced air induction before upping the compression.

Cheers

David_AMG

I would take a supercharger over any other performance mod for the biggest HP bang for the buck. If done correctly, nothing else comes close to the gains across the entire power band and still will operate with civil manners till trounced on.

Just my 2cents.

Havoc

Going from 9.0:1 to 9.2:1 or 9.5:1 is safe if you have the right parts and tune.

David_AMG

True. I thought the poster meant a much larger increase. I should have clarified my statement.

betrezra

9.XX:1 is fine...... when you consider us AMG guys are stuck adding boost to 11:1 compression ratio!!!!!!!!!! The intercooler makes it possible.

Havoc

I have a SL55 AMG (Supercharged Stock).

You have it wrong bro. It's not the intercooler that makes it possible for you to add aftermarket boost. You're 55 N/A (11.1 compression ratio) can handle 6 lbs. of boost (500hp), whereas the 55 Kompressor (9.0:1 compression ratio) can hold 18+ lbs. of boost (700hp).

blackbenzz

Awesome!
Stay tuned... if I dont sell the car soon get ready for a crazy build
Really? I would take a properly sized turbo...
Some N/A 55's have 10.5:1 c/r and can handle much more than 6lbs of boost. Ask me how I know In your case I would make sure you arent spinning that AMG charger past its efficiency. Once you do you will be making extreme amount sof heat and will be counter productive. You would actually lose power. Just lookin out for you brotha

betrezra

Intercooled boost allows you to run much more c/r and timing without deto.

If we did not have that intercooled option there's NO way you'd put a blower on the CLK55 motor with 11:1 cr.......

I've run up to 16psi of boost on a 9.8:1 cr 302 small block and put down 450 rwhp. (This was non-intercooled with a centif blower).... but it would heat soak after 1 run really bad, then pull timing, andkill power.

Intercooled is the way to go for sure.

......

How much power can the CLK55 block handle if say one were to stroke it to6.1 liters and put a kleeman on it at 1/2 atm?

THe mustang 5.0L blocks will split in half at just over 550 FHWHP..... is it the same for the AMG CLK55 block?

blackbenzz

Nobody knows.

Split if half? That sucks.

alex/b/

possibly but its a lot of cash.....
i have a question: I'm in the process of getting a 1999 w202 C43 and I'm wondering if that is possible to re-bore to 5.5 liters. the thing is i want to get it beyond 500hp perhaps 600hp if possible.

blackbenzz

Yes it's possible. I believe Renntech bored the 4.3L to 6.0L for their CLK60. You arent going to make that kind of power NA though

alex/b/

I'm planning on using boost for it.