Anybody up for some 1/4 mile action? - Page 5 - PeachParts Mercedes-Benz Forum

JayRash · #61 01-14-2010, 01:42 AM

GSXR, the REST switch is available on the W124, and i have seen it on many W124s!!! i have the pix above, and ill take clear ones to show it.
On the W202 and the W140 the rest switch is one of the AC control switches, on the W124 its up along side rear light and hazards switches.
It could be part of the EURO specs.

400Eric · #62 01-14-2010, 05:26 AM

Quote:

Originally Posted by JayRash

Here is the CTS plug:
Attachment 76197

Well here is the REST on the 202:
Attachment 76189
ANd here W124:
Attachment 76186

and the W140:
Attachment 76187

Thanks for the pics Jay!
It looks like Dima also has a dual climate control system. I've never seen that on a W124 here! Not even on a 500E/E500!

I hate to be such a pain, but could you please also take a picture of the "male" side of that CTS plug? (The sensor itself with the plug still off)
Regards, Eric

JayRash · #63 01-14-2010, 06:05 AM

i love the W124, its prolly the gr8test car ever made.

400Eric · #64 01-14-2010, 06:21 AM

Quote:

Originally Posted by gsxr

Nah, it's the same reason my E500 can run mid-13's when I want it to.

Great, but what exact scale are we talking about here? Need details.

The only added weight for the W124 ASR system is the ASR pump (which takes the place of the ABS pump), and a few extra wires for the dash light, diff sensors, and rear brake pad wear sensors. Maybe 10 lbs total, if that. I don't know what the Q45 setup consisted of but 45 lbs is an awful lot of weight!

I'd like to, but the shop what weighed my other cars is out of business now. I need to find another shop with digital vehicle scales.

Why? Was it that hot? If you stage with the car at 60-80°C on the dash gauge, you're fine. It doesn't start really slowing until 95-100°C, unless you've got detonation issues, which is possible if you're running that 5.0 EZL.

Any wheelspin?

The "REST" switch is not available on the 124 chassis. I had thought about trying to custom wire something to replicate the function manually, but decided it's not really worth it. My E420 will drop 20-30C on the gauge with 10 minutes of the heater on max. That's plenty. It would be nice to only turn on the fan + pump though, and not light up the dash, MAF, ETA, etc...

You lost me here. I'm saying my 400E is quicker than it should be cause it's lighter than it should be. Is that why your E500 is quicker than it should be?

The only details I can give you is that the scale is at a recycling place. Looks fairly new and the display is digital.

That ASR pump looks like it is also quite a bit bigger and heavier than the regular ABS pump is.

This car wants to be run as cold as possible. Doesn't matter if I'm running the 4.2 EZL or the 5.0 one. I always try to get it as cold as possible because it always heats right back up very quickly during staging. I don't even do a burnout for the same reason and I push it through the staging lanes. This car has always run it's best times when it was BELOW 80C so I have to get it WAY BELOW 80C because it gets right back up to 80C again very quickly because the thermostat isn't open yet. Another issue was the fact that the track was so empty this time just like I predicted it would be which led to there not being enough time between runs for a good cool down. It was in the mid-70s, not too terribly hot but warm enough to add to my difficulties.

No wheelspin. Hasn't been any for a while. Trust me, if that was a problem, I would have whined about that too! To be honest, I think my rear tires had a little too much tread on them back when I first started going to that track 13 months ago. That problem has since been rectified.

Dave, please teach me again how to mult-quote.

Regards, Eric

400Eric · #65 01-14-2010, 06:33 AM

Hey Jay! "Nights in White Satin" on the stereo in Lulu! I love that song!
Regards, Eric

JayRash · #66 01-14-2010, 07:05 AM

Quote:

Originally Posted by 400Eric

Hey Jay! "Nights in White Satin" on the stereo in Lulu! I love that song!
Regards, Eric

Yup its a gr8 song.

As for the dual climate control, what is it u have??? u have the auto climate sys?

My 1981 w123 has a dual clim control, so does the 87 w124 4matic, and the old 88 300TE i used to have,
personally i love the look of the rottary controls, more than that of buttons. but thats a personal choice i guess.

Seems to me all euro spec Mercs had those systems.

gsxr · #67 01-14-2010, 11:26 AM

Quote:

Originally Posted by JayRash

GSXR, the REST switch is available on the W124, and i have seen it on many W124s!!! i have the pix above, and ill take clear ones to show it. On the W202 and the W140 the rest switch is one of the AC control switches, on the W124 its up along side rear light and hazards switches. It could be part of the EURO specs.

D'oh! Sorry, I meant to say the REST switch was never on any W124 imported to the USA. All US-spec cars have automatic climate control, and the REST function was not offered as part of that system, at least in the USA. I believe it was only part of the manual climate control, as shown in your photo, which was available in Europe (and pretty much everywhere else except USA). The "REST switch appears to be part of SA 56547, "Heating With Residual Heat Utilization". Looks like it could be retrofitted, but I bet the cost is $$$$.

gsxr · #68 01-14-2010, 11:33 AM

Quote:

Originally Posted by 400Eric

You lost me here. I'm saying my 400E is quicker than it should be cause it's lighter than it should be. Is that why your E500 is quicker than it should be?

When it runs corrected mid-13's, yes... as noted on my spreadsheet, those numbers are with the trunk emptied, tank empty, back seat removed, and stock wheels/tires. All that adds up to a couple hundred pounds.

Quote:

Originally Posted by 400Eric

The only details I can give you is that the scale is at a recycling place. Looks fairly new and the display is digital.

Interesting. I wonder how accurate it is.

Quote:

Originally Posted by 400Eric

That ASR pump looks like it is also quite a bit bigger and heavier than the regular ABS pump is.

LOL! Yeah, but not 45 pounds heavier. Pick up a wheel+tire, that about 40 pounds. Now lift an ASR unit & ABS unit. There's not an extra wheel+tire sitting on the left front fender.

Quote:

Originally Posted by 400Eric

This car wants to be run as cold as possible. Doesn't matter if I'm running the 4.2 EZL or the 5.0 one. I always try to get it as cold as possible because it always heats right back up very quickly during staging. I don't even do a burnout for the same reason and I push it through the staging lanes. This car has always run it's best times when it was BELOW 80C so I have to get it WAY BELOW 80C because it gets right back up to 80C again very quickly because the thermostat isn't open yet. Another issue was the fact that the track was so empty this time just like I predicted it would be which led to there not being enough time between runs for a good cool down. It was in the mid-70s, not too terribly hot but warm enough to add to my difficulties.

You are really over-stressing about the heat thing. Yeah, my car runs a bit quicker when it's 60-70°C, but we're talking hundredths of a second compare to 85°C. Unless your gauge is off, or something.

Quote:

Originally Posted by 400Eric

No wheelspin. Hasn't been any for a while. Trust me, if that was a problem, I would have whined about that too!

Well that's good news!

Quote:

Originally Posted by 400Eric

Dave, please teach me again how to mult-quote.

You need to start the section with QUOTE and end it with /QUOTE, inside brackets []. Or click the icon in the editor just to the right of the "Insert Image" icon.

400Eric · #69 01-14-2010, 09:55 PM

How come I can't make the Multi-Quote button down in the corner of every single post work?

I didn't say 45 pounds. You already gave me 10 pounds, I only have 35 pounds to go!

Regards, Eric

gsxr · #70 01-14-2010, 09:59 PM

Quote:

Originally Posted by 400Eric

How come I can't make the Multi-Quote button down in the corner of every single post work?

It doesn't do what you're trying to do. I have to manaully copy/paste the QUOTE tags before and after each paragraph I want to quote.

Multi-quote allows you to quote multiple different posts, not multiple sections within a single post:
http://www.vbulletin.com/forum/showthread.php?186803-vBulletin-com-Running-3-6

400Eric · #71 01-14-2010, 10:15 PM

Oh, Dave, I was adding to my previous post. Go back.

Jeremy5848 · #72 01-20-2010, 01:25 AM

Quote:

Originally Posted by gsxr

. . . The "REST switch appears to be part of SA 56547, "Heating With Residual Heat Utilization". Looks like it could be retrofitted, but I bet the cost is $$$$.

I'm designing an inexpensive REST function for the USA-spec W124 w/the automatic climate control. It will use the same kind of dash switch (S14) and relay-timer (N10) that the rear window defogger uses, plus a couple of additional relays to turn on the aux coolant pump and low speed blower.

The switch and timer should be easily available from junkyards since all W124s have them. The timer will provide low heat for 30 minutes. I'm not sure where heat will appear from with the system otherwise off, but defrost and side dash vents is my current guess.

Jeremy

400Eric · #73 01-20-2010, 06:31 AM

Sounds neat. Please keep us posted.

Not that I'm trying to get this thread back on track cause I'm not, but I do want to keep the next street legal day at the forefront of people's minds so they will be able to make it this time: Sunday, February 28 2010!
Regards, Eric

Jeremy5848 · #74 01-20-2010, 05:22 PM

Any chance of buying a Euro-124 REST switch from a European member of the forum? It would be great to have the correct appearance for my homemade REST design.

gsxr · #75 01-20-2010, 05:52 PM

Quote:

Originally Posted by Jeremy5848

Any chance of buying a Euro-124 REST switch from a European member of the forum? It would be great to have the correct appearance for my homemade REST design.

You can probably buy one through your local dealership. Part # 124-820-11-10, special order from Germany, but as long as it isn't Comm Blocked they should be able to get one. Price is somewhere around $20 EUR, figure $30 USD or so. Have a European VIN handy in case the dealer asks for it.