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R129 SL55 AMG

BRN9121

Active Member
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Joined
Jan 17, 2019
Messages
366
Location
Bahrain
Car
R129, W208 & W204
<div class="bbWrapper">Hello there,<br /> <br /> Anyone here own an R129 SL55 AMG?<br /> <br /> I have a few questions and want some insight from actual owners please.<br /> <br /> FYI, R129 SL55 from 1999 on wards having the M113 5.5 liter Naturally Aspirated engine.<br /> <br /> Thanks in advance.</div>
 
<div class="bbWrapper">The R129 SL55 AMG is a very rare car, I dont think many were built.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 58999" data-quote="flowrider99" data-source="post: 2805473" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2805473" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2805473">flowrider99 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> The R129 SL55 AMG is a very rare car, I dont think many were built. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> 65 IIRC, and all LHD ... I don't recall seeing any owners on here. Think I'm right in saying it was the least powerful AMG SL ever made.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 5498" data-quote="BTB 500" data-source="post: 2805486" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2805486" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2805486">BTB 500 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> 65 IIRC, and all LHD ... I don't recall seeing any owners on here. Think I'm right in saying it was the least powerful AMG SL ever made. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>5.4l NA V8, 349bhp, 390lb/ft. Finding one will be like finding hens teeth.</div>
 
<div class="bbWrapper">Didn't someone on here have a crack at dropping a 55 engine into their 280?<br /> <br /> Found it - <a href="https://forums.mbclub.co.uk/threads/sl280-to-sl55-conversion.165737/" class="link link--internal">SL280 to SL55 conversion</a></div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 4946" data-quote="Doodle" data-source="post: 2805524" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2805524" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2805524">Doodle said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Didn't someone on here have a crack at dropping a 55 engine into their 280?<br /> <br /> Found it - <a href="https://forums.mbclub.co.uk/threads/sl280-to-sl55-conversion.165737/" class="link link--internal">SL280 to SL55 conversion</a> </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Very interesting read, thanks for the link.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 58999" data-quote="flowrider99" data-source="post: 2805520" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2805520" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2805520">flowrider99 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> 5.4l NA V8, 349bhp, 390lb/ft. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> That's about what I thought - not much up on my standard SL500 then (322 bhp, 354 lb/ft).</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 4946" data-quote="Doodle" data-source="post: 2805524" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2805524" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2805524">Doodle said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Didn't someone on here have a crack at dropping a 55 engine into their 280?<br /> <br /> Found it - <a href="https://forums.mbclub.co.uk/threads/sl280-to-sl55-conversion.165737/" class="link link--internal">SL280 to SL55 conversion</a> </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> Thank you so much for the link, it was 100% useful to me!</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 5498" data-quote="BTB 500" data-source="post: 2805548" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2805548" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2805548">BTB 500 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> That's about what I thought - not much up on my standard SL500 then (322 bhp, 354 lb/ft). </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> My 1999 R129 has the M113 engine which produces 305hp.</div>
 
<div class="bbWrapper">Update <br /> <br /> I dropped an M113 5.5 Litre AMG engine into my 1999 SL500.</div>
 
<div class="bbWrapper">I don't think anyone here owns one, but ask away! we're all experts <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile :)" data-smilie="1"data-shortname=":)" /></div>
 
<div class="bbWrapper">Thank you <br /> How can I tune my SL500 ECU to take full advantage of the new 5.5 AMG engine ?</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 143218" data-quote="SmokeySilver" data-source="post: 2815206" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2815206" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2815206">SmokeySilver said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Thank you<br /> How can I tune my SL500 ECU to take full advantage of the new 5.5 AMG engine ? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> I've never tuned an ECU but I suspect that if you're going to do this, you might want to try to swap out your ECU with one from a CLK55 or use an SDS with the programming function. I have that version but never went there. The moderator on Benzworld's W220 forum is doing a lot of programming on his SLK320 (R170 version) as he just installed an M113 500 engine. I would suggest reading that thread.</div>
 
<div class="bbWrapper">Hi,<br /> I had a similar issue when I replaced the M13 V8 in my C43 for a 5.5 M113, I was running on the 4.3 ECU/Map for about a year.<br /> I had a standard E55 map put in it and then tweaked an a rolling road.<br /> Please do bare in mind as my car was a C43 AMG (4300cc) it already had an uprated fuel pump, filter and 55 injectors fitted from the factory, so fuelling wasn't to bad just a bit lean at full load, power wise it was producing pretty much what you would expect the change in the MAP made the most difference in the torque and especially in the way it delivered it.<br /> Mine was done by Gerry of Euro Charged in America when he came over once.<br /> I would be looking at getting something similar done if it was mine.<br /> Also do bear in mind I don't think the 129 had a OBD socket (as it had the 38 pin socket under the bonnet) so after an initial rolling road run to baseline everything the ECU will have to be removed and plugged into a laptop and the original map copied which in my case took best part of an hour to do, then studied adjusted uploaded back the ECU re-fitted to the car rolling road checked again and if it still needs to be adjusted going through the process again.</div>
 
<div class="bbWrapper">My R129 is a 99 model so it has both ports. <br /> <br /> My ECU is a Bosch ME2.0</div>
 
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<div class="bbWrapper">Updated Video<br /> <br /> <form action="/misc/cookies?update=1&amp;add=1" method="post" class="bbMediaJustifier" data-xf-init="cookie-consent-form ajax-submit" data-redirect="off" data-media-site-id="youtube" data-media-key="caz3F6Zm2sQ" > <input type="hidden" name="_xfToken" value="1741900760,67f49e734b8d4820977c1752fa9af0c3" /> <div class="block-rowMessage block-rowMessage--alt"> <div class="u-dimmed u-smaller"> To view this content we will need your consent to set third party cookies.<br> For more detailed information, see our <a href="/help/cookies">cookies page</a>. </div> <div class="u-inputSpacer"> <button type="submit" class="button button--small"><span class="button-text">Accept third party cookies</span></button> </div> <input type="hidden" name="consent[_third_party]" value="1" /> <input type="hidden" name="_xfRedirect" value="" /> </div> <template class="js-embedHtml"><span data-s9e-mediaembed="youtube"><span><iframe allowfullscreen="" scrolling="no" style="background:url(https://i.ytimg.com/vi/caz3F6Zm2sQ/hqdefault.jpg) 50% 50% / cover" src="https://www.youtube.com/embed/caz3F6Zm2sQ"></iframe></span></span></template> </form> <br /> <form action="/misc/cookies?update=1&amp;add=1" method="post" class="bbMediaJustifier" data-xf-init="cookie-consent-form ajax-submit" data-redirect="off" data-media-site-id="youtube" data-media-key="KB6m4jT6mok" > <input type="hidden" name="_xfToken" value="1741900760,67f49e734b8d4820977c1752fa9af0c3" /> <div class="block-rowMessage block-rowMessage--alt"> <div class="u-dimmed u-smaller"> To view this content we will need your consent to set third party cookies.<br> For more detailed information, see our <a href="/help/cookies">cookies page</a>. </div> <div class="u-inputSpacer"> <button type="submit" class="button button--small"><span class="button-text">Accept third party cookies</span></button> </div> <input type="hidden" name="consent[_third_party]" value="1" /> <input type="hidden" name="_xfRedirect" value="" /> </div> <template class="js-embedHtml"><span data-s9e-mediaembed="youtube"><span><iframe allowfullscreen="" scrolling="no" style="background:url(https://i.ytimg.com/vi/KB6m4jT6mok/hqdefault.jpg) 50% 50% / cover" src="https://www.youtube.com/embed/KB6m4jT6mok"></iframe></span></span></template> </form></div>
 
<div class="bbWrapper">SmokeySilver, please could you provide some more information on your conversion. I am about to embark upon the same engine swap (my car is also smoke silver).<br /> <br /> First, was it worth it? Is there a significant increase in performance?<br /> <br /> Second, did you change the differential for a faster one?<br /> <br /> Third, did you change the engine ECU or are you using the ECU from the 500 motor? In one of you YouTube videos you mention having the ECU programmed or tuned. How did you get on?<br /> <br /> Fourth, did you change/uprate the fuel pump?<br /> <br /> Thanks for your time. Jonathan</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 2322" data-quote="jjrodger" data-source="post: 2922903" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2922903" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2922903">jjrodger said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> SmokeySilver, please could you provide some more information on your conversion. I am about to embark upon the same engine swap (my car is also smoke silver).<br /> <br /> First, was it worth it? Is there a significant increase in performance? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> Because I owned an M113 engine, the power jump was significant for me because the M113 was rated at 302hp as opposed to the older M119 engine which was 322hp.<br /> <br /> <blockquote data-attributes="member: 2322" data-quote="jjrodger" data-source="post: 2922903" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2922903" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2922903">jjrodger said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Second, did you change the differential for a faster one? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> No, I kept the standard SL500 differential<br /> <br /> <blockquote data-attributes="member: 2322" data-quote="jjrodger" data-source="post: 2922903" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2922903" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2922903">jjrodger said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Third, did you change the engine ECU or are you using the ECU from the 500 motor? In one of you YouTube videos you mention having the ECU programmed or tuned. How did you get on? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> I am using the ECU from the SL500 and it works fine and adapts to all the features of the existing VIN. However, in order to take full advantage of the new engine, injectors, etc, the ECU needs to be remapped. I still feel the increase in power because of the new engine, but it's not as much as it should be.<br /> <br /> <blockquote data-attributes="member: 2322" data-quote="jjrodger" data-source="post: 2922903" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2922903" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2922903">jjrodger said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Fourth, did you change/uprate the fuel pump? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> No, the existing fuel pump works just fine. <br /> <br /> <blockquote data-attributes="member: 2322" data-quote="jjrodger" data-source="post: 2922903" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2922903" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2922903">jjrodger said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Thanks for your time. Jonathan </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> You are most welcome mate.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 143218" data-quote="SmokeySilver" data-source="post: 2923010" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=2923010" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-2923010">SmokeySilver said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Because I owned an M113 engine, the power jump was significant for me because the M113 was rated at 302hp as opposed to the older M119 engine which was 322hp.<br /> <br /> <br /> <br /> No, I kept the standard SL500 differential<br /> <br /> <br /> <br /> I am using the ECU from the SL500 and it works fine and adapts to all the features of the existing VIN. However, in order to take full advantage of the new engine, injectors, etc, the ECU needs to be remapped. I still feel the increase in power because of the new engine, but it's not as much as it should be.<br /> <br /> <br /> <br /> No, the existing fuel pump works just fine.<br /> <br /> <br /> <br /> You are most welcome mate. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>SmokeySIlver, thank you so much for coming back so swiftly, this is really helpful. Mine is a m113 car, too. I have decided just to get on with it and do it. Since posting I've seen your videos on YouTube. Your car looks great. Next thing is to find that AMG body kit and those two piece wheels. That'll cost me... More than the engine swap, I suspect. Thanks again.</div>
 
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