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  #46  
Old 01-23-2007, 05:44 PM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 38,948
yes.

i never heard that before, but i will say this....my 185 hp rated with 250 torque 500sec weighs 3650# and it will scoot pretty well!

i have beaten much newer vettes at the autocross. but the driver may not have been as experienced as i am.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
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  #47  
Old 01-23-2007, 08:07 PM
mramay's Avatar
Mike R.
 
Join Date: Jan 2007
Location: Las Vegas
Posts: 152
Quote:
Originally Posted by Roncallo View Post
I looked into an LS7 $15,000 for the engine. then I need a trans (The idea of a 6 speed standard was apealing). Then I need all the wireing harnesses. Then I need all accessoris. And on top of all that just as much work for the install. Approximatly $22K for all the hard parts less any custom fabricated stuff. I got a complete SL600 wrecked delivered from CA for $8300.00. Its got all hard parts I need. From that point on the cost is approximatly the same.

The MB SL600 engie advertises only 389 HP however it has been my observation over the years that MB uses a bigger horse.

When I am done I will have a Mercedes with a Mercedes engine a 12 cylinder MB engine. Also the engine is not too over powered that I will have to be concerned with the rest of the drive train. I will have the weight of this engine shortly.

John Roncallo
Good points all. The LS7 is "only" $13K now, I got my wiring harness for $500, the custom tuning in the PCM was $350, and had a custom heavy duty 4L60E 4-speed automatic built for $1500. My engine was used (~5K miles) and didn't have most of the auxiliaries but it cost $6000 ("friend price" for a built up engine). A crate LS6 is around $7500. Yours will cost less, mine will have more HP, yours still say's Mercedes on it. FYI, I'm thinking of getting a set of blank engine covers and have "Mercedes" added to them, just to confuse the uninitiated. Gonna be fun for the both of us.

I already put a rebuilt 3.07 limited slip differential in there, so, with fingers crossed, I should be fine as long as I don't put on too wide rear tires and just let them spin.
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  #48  
Old 01-24-2007, 12:57 PM
Registered User
 
Join Date: Dec 2005
Posts: 112
3.07 LSD ? where did you get one? I mean from which car? Or is it a full custom?
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  #49  
Old 01-24-2007, 02:28 PM
mramay's Avatar
Mike R.
 
Join Date: Jan 2007
Location: Las Vegas
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Originally Posted by altz View Post
3.07 LSD ? where did you get one? I mean from which car? Or is it a full custom?
Full custom from Barry Taylor Enterprises in Richmond, CA.
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  #50  
Old 01-24-2007, 09:51 PM
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,538
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Originally Posted by altz View Post
What do you mean by saying it? There are more horses than the factory says? ..or.?

good luck with the project, I hope you take a lot of pictures.
It has just been my observation that cars of equal weight and advertised power from USA and Germany are not so equal in performance. I have always found the German cars to have more performance. So I would really like to see a stock LS7 vs a stock M-120 in equal weight cars. It may not beat it but you may find the 120HP advantage to be somewhat questionable.

John Roncallo
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  #51  
Old 01-25-2007, 07:07 AM
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Mike R.
 
Join Date: Jan 2007
Location: Las Vegas
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Quote:
Originally Posted by Roncallo View Post
It has just been my observation that cars of equal weight and advertised power from USA and Germany are not so equal in performance. I have always found the German cars to have more performance. So I would really like to see a stock LS7 vs a stock M-120 in equal weight cars. It may not beat it but you may find the 120HP advantage to be somewhat questionable.

John Roncallo
If I EVER get my FrankenBenz SEC done, we may be able to answer that. I had a shop dyno the stock SEC (194 rwhp) and once the LS6 is in there, that same shop will dyno it again. Then, with a GTech Pro, we'll have acceleration numbers. According to my GPS unit, I live at 2100' MSL. With some temperature and barometric pressure data, it's possible to to adjust to sea level figures. There will be some place that can get me an accurate weight value of the car, then we have all of "F=MA" and can compare apple to apples.
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  #52  
Old 01-25-2007, 07:26 PM
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,538
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Originally Posted by mramay View Post
If I EVER get my FrankenBenz SEC done, we may be able to answer that. I had a shop dyno the stock SEC (194 rwhp) and once the LS6 is in there, that same shop will dyno it again. Then, with a GTech Pro, we'll have acceleration numbers. According to my GPS unit, I live at 2100' MSL. With some temperature and barometric pressure data, it's possible to to adjust to sea level figures. There will be some place that can get me an accurate weight value of the car, then we have all of "F=MA" and can compare apple to apples.
Or maybe we can just meet somhere between Vagas and CT and we can really answer it. "FrankenBenz" I like the name.

John Roncallo
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  #53  
Old 01-25-2007, 08:19 PM
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Mike R.
 
Join Date: Jan 2007
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Originally Posted by Roncallo View Post
Or maybe we can just meet somhere between Vagas and CT and we can really answer it. "FrankenBenz" I like the name.

John Roncallo
Now THAT I would like to do! All I need to do is finish the car!!

I'm working in DC at the moment and looks like I'll be here for a month or more. I can pay for more parts this way but no chance to work on my car. :-(

Mike R.
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  #54  
Old 01-26-2007, 09:22 PM
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,538
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Originally Posted by mramay View Post
Now THAT I would like to do! All I need to do is finish the car!!

I'm working in DC at the moment and looks like I'll be here for a month or more. I can pay for more parts this way but no chance to work on my car. :-(

Mike R.
No rush, I dont expect to be done this weekend.

John Roncallo

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