Question about engine swaps ¿? - Page 3 - Mercedes-Benz Forum

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post #21 of 25 (permalink) Old 06-24-2015, 11:54 AM Thread Starter
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Date registered: Apr 2015
Vehicle: 1970 W115 200/8
Location: Lima, Perú
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Cosworth is not an option here since there may be only one or two of those mercs that came with it in my country. I know about one but haven't heard about other.

I might pick up one of those models you talk about in the future, that or a BMW haha.
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post #22 of 25 (permalink) Old 06-24-2015, 12:18 PM
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Originally Posted by Kaelor View Post
20+ mpg is that true?? that's a good number. And about the v8, I guess I should consider that too but the mods I would have to do would be greater than fitting a 6 cyl on the W115.



I will look at that transmission replacement. If I can find one I might do it but it's kinda hard to find one of those here.

About the stell struts you talk about, are those the ones in the pic below?
Yes.
I know the carbed M110 were fitted to these bodies, but a V8 might be tight in there.
So far as fuel economy, my M130-powered '72 25O used to manage 20+ mpg on the highway if I didn't push it hard, my Fintail 230-6 about the same, and my M115 '72 220 maybe 1-2 mpg better. All usually ran in the low to mid-teens in city driving. Both were automatics. I'd expect maybe 1-2 mpg better overall with a stick-shift.
A taller rear-end gear could make a significant mpg improvement on the highway. But in the US we got a shorter gear (4.03 vs 3.92 outside the US) to improve acceleration on cars that cost a lot more than the typical American V8.

Happy Motoring, Mark

Last edited by Mark DiSilvestro; 06-24-2015 at 12:32 PM.
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post #23 of 25 (permalink) Old 06-24-2015, 01:01 PM
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W115's never had a M110. '73 and later W114's had the M110 (no cross braces). I believe the O.P. said he didn't want to remove the braces which eliminates the possibilities of either the M110 or M117.
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post #24 of 25 (permalink) Old 06-24-2015, 02:08 PM Thread Starter
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W115's never had a M110. '73 and later W114's had the M110 (no cross braces). I believe the O.P. said he didn't want to remove the braces which eliminates the possibilities of either the M110 or M117.
Yes the W115's were fitted only with 4cyl gasoline engines and 4 and 5cyl diesel. The W114 line got the bigger engines.

I'd rather not cut anything off my car unless I really need to. The M130 seems like an easy swap in comparison if the I4 fails.

Thanks for all the info .

I just wanted to know if the tranny of the M130 is the same tranny that came with the M115. It's the 722.1 I think.
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post #25 of 25 (permalink) Old 06-25-2015, 01:32 AM
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In my original post, I didn't say the M110 was used in the W115.
I've since re-edited to make my meaning clearer - that the M110 was used in essentially the same body shared by the W114 - at least same enough if one is considering swapping parts.

Happy Motoring, Mark

Last edited by Mark DiSilvestro; 06-25-2015 at 01:36 AM.
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