C32 AMG, C55 AMG (W203) 2001 - 2007

Do i need to get ECU re-tuned after installing an intake?

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Old Nov 3, 2010 | 03:02 PM
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C32 AMG
Do i need to get ECU re-tuned after installing an intake?

My 02 C32AMG is pretty much stock except for a heat exchanger, magnecor 8.5mm wires, and one heat range colder plugs. I have the EC 181mm pulley kit, but havent gotten it installed yet, i got a quote for $300 bucks for the pulley install, and the owner said the tune will be free since i purchased the Pulley+tune deal from Eurocharge, and this shop is a dealer for Eurocharge. Thats more convenient so i dont have to take the ecu out and wait a week or so.

Anyways, i am waiting to get the sl55 intake and pulley saver kit so i can have everything installed at once. I know i can get away with having the pulley kit and tune without the intake or pulley saver kit for a while, but i rather just wait til i get the pulley saver since the belt is already off for the pulley install and i rather be safe than sorry since the idler bearing seems to be an issue with the pulley kits on our cars.. But my question is, if i get the pulley and NW pulley saver kit installed and tuned, then i install the intake after i get enough cash to buy it, would i have to get the car re-tuned to get more power, or would the intake not make a difference as far as the tune?

Also, is $300 a fair price for the pulley install? The owner of the shop told me it's a 3 hour job, $100 an hour, so $300. They do alot of performance mods for Supras, STIs, 350z/G-35s, EVOs, Porsche, BMWs, and AMG mercedes. The owner was really cool about it. Out of all the shops i have spoken to in the past about my car to get repaired or modded, i never gotten a call back, this guy said hell call me back within a couple of hours with a quote. I asked him a few more questions and he said they basically do everything, such as motor work(internals), quaife and rear-end, transmission work, exhaust and headers fabricating/welding, etc. So if all goes well with the pulley install and tune as far as quality of the work, then i will have all the future work done there. Its hard finding a shop that works on C32s, at least it is for me. Not alot of shops want to touch it. I called two shops a while ago asking for a price on replacing the valve cover gaskets, and they never got back to me.
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Old Nov 3, 2010 | 03:28 PM
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Where are you that shops are not calling back??
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Old Nov 3, 2010 | 04:12 PM
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C32 AMG
Originally Posted by Newzchspy
Where are you that shops are not calling back??
I live about 5 minutes from Englishtown raceway park in NJ. One shop that specializes in german cars, said that he couldnt find out how many hours the job is so he couldnt give me a quote. I dont see how he couldnt just give me a quote based on his service. theyre just valve cover gaskets, im sure they dont vary much from car to car.
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Old Nov 3, 2010 | 04:23 PM
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Originally Posted by Jordan7589
I live about 5 minutes from Englishtown raceway park in NJ. One shop that specializes in german cars, said that he couldnt find out how many hours the job is so he couldnt give me a quote. I dont see how he couldnt just give me a quote based on his service. theyre just valve cover gaskets, im sure they dont vary much from car to car.
Seems odd that they don't call you back. What about Tuning Technologies? We don't do much C32 stuff, but Bruce is usually on the ball, no?

www.ttmotorsports.com
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Old Nov 3, 2010 | 04:33 PM
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C32 AMG
Originally Posted by Speedriven
Seems odd that they don't call you back. What about Tuning Technologies? We don't do much C32 stuff, but Bruce is usually on the ball, no?

www.ttmotorsports.com
No its cool bro, thanks anyways. the shop i found is called broadway performance in passaic NJ. they specialize in AMGs . I was just seeing if $300 is a good price for the pulley install and if i need to get it re-tuned after i install the sl55 intake.

I already got the valve cover gaskets replaced, i was just reffering to the fact that all the other shops didnt call me back and the owner of broadway perforamcne called me back and seemed cool about everything.
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Old Nov 3, 2010 | 05:37 PM
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Originally Posted by Speedriven
Seems odd that they don't call you back. What about Tuning Technologies? We don't do much C32 stuff, but Bruce is usually on the ball, no?

www.ttmotorsports.com
You are now
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Old Nov 4, 2010 | 12:28 AM
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C32 '02
make sure you have one of those new crank gaskets, when you replace your pulley as a precaution. i replaced mine to ensure no oil leakeage plus labor cost so much for you guys you don't want to pay for it again...
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Old Nov 4, 2010 | 12:48 AM
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The ECU will adjust to increased airflow. With 185MM and tune I gained 20WHP using my custom intake. AFR leaned out a bit more, but well within a safe range. If you do re-tune for intake I would expect another 5WHP gain, or so. You could have them set your tune a little rich to begin with.

$300 for the pulley install isn't that bad, but I really don't see it taking three hours especially with a bunch of good shop tools around. Take off belt. Remove center bolt on crank. Remove old crank. Replacement of the front crankshaft seal is a very good idea as stated above. I didn't do it on mine and it started to leak... Is the shop doing the PSK at same time for $300? Dyno tune, or just ECU flash?
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Old Nov 5, 2010 | 09:22 PM
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Originally Posted by gt4awd
The ECU will adjust to increased airflow. With 185MM and tune I gained 20WHP using my custom intake. AFR leaned out a bit more, but well within a safe range. If you do re-tune for intake I would expect another 5WHP gain, or so. You could have them set your tune a little rich to begin with.

$300 for the pulley install isn't that bad, but I really don't see it taking three hours especially with a bunch of good shop tools around. Take off belt. Remove center bolt on crank. Remove old crank. Replacement of the front crankshaft seal is a very good idea as stated above. I didn't do it on mine and it started to leak... Is the shop doing the PSK at same time for $300? Dyno tune, or just ECU flash?
I decided just to wait it out. Getting the pulley saver kit this week anyways, so all i have left to get is the 5 pieces for the intake from parts.com. But i was thinking about just telling the shop to have it tuned for the bigger intake, like you mentioned, so i dont have to go back for a re-tune just for an intake, lol.

I figured the idler and water pump pulley were simple since i already replaced those 2 pulleys with OEM ones a few weeks ago. I guess ill just keep em just incase i want to return it to stock or maybe ill sell them, since the pulley saver replaces both of them anyways. But i hear alot of people having problems taking the crank pulley off and couldnt getting the bolt back on with the right torque specs, they did say like 148-150 ft/lbs plus a quarter turn, ill just let them take care of it as well as the tune. And im only getting a ECU flash, not dyno tune. How much more power can i expect, roughly, if i did a dyno tune after the ECU flash?

The quote for $300 was just for the pulley install and tune. The shop owner said they usually charge 50-60 bucks for a ecu flash but since i am going to let them install the pulley, he said he wont charge me for the flash. I bought the pulley+TUNE from EC anyways, so i wouldnt have to pay for a tune. I guess hes just gonna save me the trouble of sending the ecu out and having "down time" on the car. I didnt plan on buying the pulley saver kit at first so i didnt ask for a quote on that install as well. But how hard is it to put that kit on? seems like 2-3 mounting bolts, and replace tensioner pulley and new belt. Im hoping it wont be more than 75 bucks or so for the PSK install.

And crankshaft seal, is that easily replaced once the crank pulley is off the car? If anything, i will order the seal and have them install it as well when they do everything.

Thanks for the input bro.
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Old Nov 6, 2010 | 02:52 AM
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I've removed the stock pulley once, and installed/removed the Eurocharged 185MM twice. The stock pulley didn't put up a big fight, but that 185MM was a complete PIA to remove. I oiled down the shaft and everything as recommended, and only had it on for a couple thousand miles! Install isn't too bad except it can be a pain to line up the key. Not to mention if you damage the key you're in some deep sh**...

Torque can be an issue. If you find a heavy duty torque wrench, and attach a longer metal bar though it can be accomplished by yourself. The more leverage you have, the more torque you can apply with less effort.

Crankshaft seal I had dealership do out of stupidity along with timing cover. They charged me over $600 for what I could have done in a few hours. I did so much work on the c32 at the time, and it developed a good oil leak after all my hard work. Didn't want to deal with it anymore... The front seal can be pried right off once the crank pulley is removed. There's a simple shop tool that sets the new seal in correctly.

Pulley saver kit isn't hard to install at all. Maybe a little time consuming, but very easy. It's hard to get at the new passenger side idlers rear nut. That's about it... I worked with Rob at needswings with the intercooler lines being an issue. From what he said they now include the relocation kit I originally made, and showed him.
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