It is Erick, and from what he said ( & others on this forum and other MB forums) is that if you install a 178mm Pulley the stock settings on our ECU's will adapt just fine. If you install the 181mm pulley; the ECU will also adapt fine but you should install Iridium spark plugs to avoid pre-detonation at high RPMs.

With the 185mm pulley - you will need to adjust the ECU and install the Iridium plugs.

Upgrading your air intake system is a "good thing" when installing any overdrive pulley and an ECU tune is also good as they can set the fuel maps, pulley clutch parameters and other adjustments. I am not very knowledgeable with ECU's so Erick would be a great person to talk to and he is easy to reach.

According to AMGrasoul (192mm pulley) and Erick (185mm pulley) – the only time either experienced fuel starvation was with headers installed (see post #14 on this thread) – (both have AMG C32’s) – neither had fuel problems before installing the headers. Erick also told me that if I had problems, he would exchange for a 181mm pulley so I feel there is very little risk installing the 185mm pulley.

I will send Erick an email with a link to this thread and ask him to answer/clarify a few of our questions.

Good luck with your projects...

BB

 

Brian,

Thank you very much for the detailed response! I really appreciate it.

I will check out the other threads as well.

Cheers,
Patrick

 

well, lots of questions to answer, thanks so much to Brian for answering a lot of these!

i will try to answer all the ones i read, but if i miss any, please feel free to post up questions and i will follow up with them...

ALL of our pulley setups use the stock belt...if you have another pulley system currently, then you will not need the idler pulley option, if you are stock, you will need it...

boohooramblers is right, max rpm for our blower is 20,700 rpms...with the 185mm pulley, you are at 18,700 rpms...plenty of safe zone...

i am working on the fuel problem right now with Evotech, they are asking for some specific data logging and i am going to provide that this week so that they can tune the ECU for the extra fuel needed...i will be glad to report back on my findings...

heat is another issue that you have to address with the increased boost, which is why i have done all of the cooling upgrades that i have done to the car...if you do not do the cooling upgrades then you will experience heat soak with the 185mm pulley, it is inevitable...you will be able to get a couple of good runs in before having to let it cool down for a while, either by letting the car sit for a while or by cruising for a bit to let the coolant temps come back down...if you only punch the car every now and then or live in a fairly cool area most of the time, this will be much less of an issue for you...

this is why we are coming out with the LETMotorsports Heat Exchanger for the SRT-6...

i think that this is everything, but i could have left something out, please feel free to ask any additional questions...thanks!

 

brian or shawn since you both will be in texas brian forsure maybe erik can meet you and borrow your car so we can get this heat exchanger figured out and you can get a free pump out of the deal. Shwan I thought you were going to do this like 2 months ago. lol your killin me here I am about ready to drive down there.

 

I had plans to take my co-worker's SRT to him, but his car was stuck in the shop when I was making my trip through Erick's area.

I would've taken my own with me, but the place where we were staying in Mississippi was not safe enough for me to leave my SRT...so I took the Ford Focus.

We'll get it figured out.

For the record...I've had plans for around a month, but I just went through Erick's area yesterday so I am only a day late.

SQ

 

sent you a PM!

 

I'm flying to Texas - The SRT stays under the cover in the garage and I leave the truck at LAX

 

Erick,

Thanks for the additional info! You and the other members have answered all of my questions for now.


Thanks again,
Patrick