PerisanGodFatha

Crazy Guy ...wish I knew how to do all that...Have fun putting it back together

JamE55

That's very interesting to see the inside/anatomy of the 55 s/c. Very informative. Thanks Fin!

dsc

Ya, this is ****. How long will it take to do all the chop chopping?

E55 RUSS

Wow...Finny...I wonder what this CHOP...CHOP comes out too...

What do you want to get by doing all this ???

Charged55

Good job

stevebez

Wow - those screws fit pretty tight ... whats the one that looks cream colour made of ?

That whole unit is one stressed item taking all that pressure and spinning at ~29k rpm to do so ... wow...

Finny

A few hours or so. Most of time will be used to remove the core section with care.


It will remove the core bottleneck which costs the charger a few PSI and help to free flow the plumbing.

Basically it will help to maximize the superchargers efficiency by optimizing flow.


I'm not sure... It appears to be some kind of light weight resin.

Finny

Thanks' for the kudos, but I'm only giving a little back as I have received so much more from the forum. I hope every one can get something from the Dissections and Experiments as it's always fun when it's someone else's car... mine It's all in good fun!

Yeah, it's the one from Ebay. Top condition! 04-05 build...

Finny

An interesting link about porting superchargers.


http://www.stiegemeier.com/faq.html

Dogshine

blingin engine!

viper04

Wayne
Nice post, been off the forum for sometime. I see you have been very busy. You always amaze me. Did Bob at Stiegemer, tell you my supercharger was the first 55 he did. He does good work, Just ask the Corba guys. Keep up the good work, and keep us posted.

OzE55

I hope you're doing this for fun and not the 10-15hp gain? http://www.stiegemeier.com/flow_results_tb.html

Finny

Personly, I wouldn't have my charger put through the mill for only 15hp extra... So this is where synergy comes into play... Every mod added isn't responsible for a particular HP rating, although s/c porting claims 15hp, it could actually be more in conjunction with other parts.

It's the combination of mods which dictates overall performance.

So when the whole jigsaw is put together, I think there's going to be a little more than a 15hp gain.

Finny

Don't know the bloke but he seems to know what he's doing.

Seen the 55 s/c photo and wondered who's it was.

Besides doing the porting, what other work have you had done?

viper04

Victor -T/B, ECU, ASP Pulley, Custom made H-pipe.

Finny

Cooling, Exhaust and Heads would really wake up this combination.

Have you considered adding these?

Finny

Just a few update shots of port matching and obstruction removal.



Obstruction... Bye Bye...




Note the hangover.




Material removed from here. About 3mm above and the large section below.




This part will now match up with the lower section.




Flush with outlet manifold front and back. (Arrows)




Before.




After with about 5mm removed.




Some butcher markings from the die grinder.



More to come...

wahliP

Wow, thats a really interessting thread. I'm following it since a while. It has nothing in common with german Mercedes boards: "...go to your dealer, he can fix your problem...". Especially at these expensive engines.
Sorry Finn, but I can't imagine any crazy person here in Germany who opens his supercharged 55 V8 on his own. Respect. I hope that I'll get to know some of those when I've got the pleasure to spend a year of studying in Sydney from the mid of July this year.

greetz from Germany to all of you giving this board life with your interessting topics!

Cylinder Head

iTrader: (1)

I am absolutely captivated by this thread. Finny you are a hero to us all. Take care of that beast when you put it back together!

Yacht Master

Finny, one question what is the purpose of the two U shaped slots in the bottom of the blower housing? Seems like one could remove material on the outside points.

Finny

I'm not sure what these are for but it's part of the barrel where the compression occurs so I didn't want to screw around with this area. The space where the final product is delivered is where I thought some flow improvements could be made.

Only speculating here... maybe as the rooters pass over these slots pressure is released gradually to help prevent oscillation or excessive noise???

A lot of physics going on here at 20k rpm or so.

Finny

You will love Sydney, lot's going on here and plenty of car culture.

If you come past Melbourne make sure you pop in and visit.

Cheers

stevebez

Is it only me or why is it that these pieces don't mate up together better with less overhangs and obstructions ... surely the die's could be made with better tolerances? 3-5 mm thats loads of "off" factor....

Finny

I suppose MB could do it but if the final spec is achieved why bother? No need to spend the extra bux to up stage the twice as much SL 65? Imagine paying half for the same power of the 65? Wouldn't make marketing sense I suppose...

Just came back from the Heads guy who informed me that he managed to flow an extra 100hp out of the heads which I'll try and get some shots soon so you guys can see what the hell they got up to. All the valve seats and valves were replaced for larger versions among other alterations.

vader