[W126 Coupe] Turbo/supercharger

[Jonathan]

Hello Alex,

I do have cams, I've started producing them in the last 1/2 year after 
debating what specs to use for some time.   Sorry to say I'm none to 
keen on releasing the #'s, as it took me considerable time/effort to get 
where I am (Starting w/ AMG cams etc, etc..).

Jonathan


Alexander Hochhausl wrote:

>

> Hi Jonathan,

>

>  

>

> Good points you make -- yes, I scratch my head too when I look at the 

> exhaust. You mention you have some after market cams -- do you have 

> the source/specs on them -- I haven't seen anything for the 560. Thanks.

>

>  

>

> -----Original Message-----

> *From:* mbcoupes-bounces at mbcoupes.com 

> [mailto:mbcoupes-bounces at mbcoupes.com] *On Behalf Of *Jonathan

> *Sent:* Sunday, August 05, 2007 11:06 AM

> *To:* Mercedes Coupes Mailing Lists

> *Subject:* Re: [W126 Coupe] Turbo/supercharger

>

>  

>

>

>

> Alexander Hochhausl wrote:

>

> "Finally -- be careful when changing exhaust to headers -- you loose a 

> lot more bottom end torque (where you do most of your driving) than 

> you gain in top end HP. The whole system has to be balanced and match. 

> Exhaust system design is actually a very complex and interesting. You 

> can gain or loose 10-20% based on the design and free-flow is not 

> always a positive. Even when it is, geometry (tube diameters/lengths, 

> even firing order greatly influences the output."

>

> I have to comment on my experience with headers/cast tri y's..the two 

> cars I know that are header equipped not only make more up top but are 

> making more power sooner.

>  The US exhaust system is one of the worst designs ever to make it on 

> a production car.  Just allowing this car to breathe properly had 

> netted me 20 RWHP and 12 ft/lbs.  I'll have another car running AMG 

> spec headers in the next few months and will of course post my results 

> here.

>

>

> "Typically you'd only go to headers if you upgraded to high flow cams 

> and heads and you are doing all your driving above 4K (like on a 

> track). Most people I know don't run their car on a track -- otherwise 

> it's a waste. That may be why nothing much is happening below 4K."

>

>   I've been running a hot cam in one of my cars and have to say the 

> top end rush is addictive..  The only way I really notice a loss of 

> low end is by jumping back and forth from a stock 560 and back into my 

> built car.  She still pulls well down low, but instead of getting 

> sluggish over 4K everything takes on a whole new urgency.  Makes me 

> smile every day, many times a day;-)

>

> Jonathan

>

>

>

>

>

> -- 

> Blue Ridge Mercedes

> Offering Enthusiast Service, Restoration and Modification.

> Providing quality parts to discriminating customers in all parts of the world.

> Located in the Greater Atlanta area.

> http://www.blueridgemb.com

>  

> 1996 S600 Euro "Scharnhorst"

> 1991 560 SEC Full Euro ECE

> 1991 560 SEC 226Hp/271ft/lbs

> 1989 560 SEC AMG (N.A. Conversion 250/297)

> 1987 560 SEC 

> 1986 560 SEL 6.0L 32V AMG

> 1985 300 CD (for sale)

> 1980 280 SE Euro

> 1986 560 SEC (parts)

> ------------------------------------------------------------------------

>

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.



-- 
Blue Ridge Mercedes
Offering Enthusiast Service, Restoration and Modification.
Providing quality parts to discriminating customers in all parts of the world.
Located in the Greater Atlanta area.
http://www.blueridgemb.com

1996 S600 Euro "Scharnhorst"
1991 560 SEC Full Euro ECE
1991 560 SEC 226Hp/271ft/lbs
1989 560 SEC AMG (N.A. Conversion 250/297)
1987 560 SEC 
1986 560 SEL 6.0L 32V AMG
1985 300 CD (for sale)
1980 280 SE Euro
1986 560 SEC (parts)

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