View Poll Results: Will you recommend the upgrade?
Yes
16
66.67%
Maybe
4
16.67%
No
4
16.67%
Voters: 24. You may not vote on this poll
Comment Please: RENNTech Pulley and ECU Performance Upgrade
#1
Banned
Thread Starter
Join Date: Jan 2004
Location: Vista, CA
Posts: 41
Likes: 0
Received 0 Likes
on
0 Posts
Comment Please: RENNTech Pulley and ECU Performance Upgrade
I apologize for these questions, but my other half just acquired a 04 E55 (black/black). I am considering the ECU/Pulley upgrade listed by RENNTech for $5k.
Can those who have done it on their E55 give their honest feedback with the following in mind?
1) Performance - was it really different? How?
2) Price - would you do it again for $5k? Was that a fair price for what you got?
3) Installer - which dealer would you recommend? How would you rate and what's your experience with Autowerks in San Diego???
4) Other Pros and Cons?
I have two options here... get it done via the MBSD dealer or go straight to Autowerks since I am in San Diego. I know however that Autowerks will probably end up doing it for MBSD, and I can take advantage of the FREE ACCELEROMETER offer through them.
Input please???
Can those who have done it on their E55 give their honest feedback with the following in mind?
1) Performance - was it really different? How?
2) Price - would you do it again for $5k? Was that a fair price for what you got?
3) Installer - which dealer would you recommend? How would you rate and what's your experience with Autowerks in San Diego???
4) Other Pros and Cons?
I have two options here... get it done via the MBSD dealer or go straight to Autowerks since I am in San Diego. I know however that Autowerks will probably end up doing it for MBSD, and I can take advantage of the FREE ACCELEROMETER offer through them.
Input please???
#2
MBWorld Fanatic!
Re: Comment Please: RENNTech Pulley and ECU Performance Upgrade
Originally posted by jambee888
1) Performance - was it really different? How?
2) Price - would you do it again for $5k? Was that a fair price for what you got?
3) Installer - which dealer would you recommend? How would you rate and what's your experience with Autowerks in San Diego???
4) Other Pros and Cons?
I have two options here... get it done via the MBSD dealer or go straight to Autowerks since I am in San Diego. I know however that Autowerks will probably end up doing it for MBSD, and I can take advantage of the FREE ACCELEROMETER offer through them.
1) Performance - was it really different? How?
2) Price - would you do it again for $5k? Was that a fair price for what you got?
3) Installer - which dealer would you recommend? How would you rate and what's your experience with Autowerks in San Diego???
4) Other Pros and Cons?
I have two options here... get it done via the MBSD dealer or go straight to Autowerks since I am in San Diego. I know however that Autowerks will probably end up doing it for MBSD, and I can take advantage of the FREE ACCELEROMETER offer through them.
2) I would definately do it again. No hesitation. I feel it was a fair price because I have the peace of mind of a good tuner that developed it and the back up of their warranty. The warranty is what convinced me along with the people who were doing it.
3) I had my upgrade done by Autowerks. They were really good. I highly recommend them. Their customer service was great. And I know that if I ever had a problem, they will try to resolve it immediately. This peace of mind is very important to me. I surely would not have done it if it was offered from some shop I was not familiar with. The guys there gave me confidence in my upgrade.
I suggest you just go directly to Autowerks. It's much easier that way. And like you said, you'll get the free accelerometer.
#3
Banned
Thread Starter
Join Date: Jan 2004
Location: Vista, CA
Posts: 41
Likes: 0
Received 0 Likes
on
0 Posts
Thanks t-bone. I am 85% convinced but a bit concerned about reliability and warranty prior to your response. With that, I would probably bite the bullet and get it done.
I also wanted to get the steering wheel and rear spoiler like yours. I have a specific budget to spend on the car since its not really mine to drive.
I also saw the CF shift gate cover at the LA Auto Show when the RENNTech E500k with the "Autowerks Express" decals up there.
Do you know by chance if Autowerks Direct and Autowerks Express are two different companies?
I also wanted to get the steering wheel and rear spoiler like yours. I have a specific budget to spend on the car since its not really mine to drive.
I also saw the CF shift gate cover at the LA Auto Show when the RENNTech E500k with the "Autowerks Express" decals up there.
Do you know by chance if Autowerks Direct and Autowerks Express are two different companies?
#4
Super Moderator
Originally posted by jambee888
Do you know by chance if Autowerks Direct and Autowerks Express are two different companies?
Do you know by chance if Autowerks Direct and Autowerks Express are two different companies?
Same company. When Autowerkes sells off their interent site they are known as Autowerks Direct. Their brick and motar store is known as Autowerks Express.
#5
MBWorld Fanatic!
Autowerks Direct and Autowerks Express are the same people.
What is your budget? If you are not driving it, may I ask who will be enjoying the beast?
I too am thinking about getting that CF shift gate. However, there are some other things I'd like to get done first.
heh heh....
What is your budget? If you are not driving it, may I ask who will be enjoying the beast?
I too am thinking about getting that CF shift gate. However, there are some other things I'd like to get done first.
heh heh....
#7
Senior Member
Join Date: Nov 2003
Location: Newburgh, NY
Posts: 285
Likes: 0
Received 0 Likes
on
0 Posts
2004 E55
I can't drive my car very slow anymore. Good one, T-bone. Can't wait to tell my wife that one. With testimonials like that I won't even have to talk my speed demon of a wife into a performance upgrade.
Trending Topics
#8
I'd do it again in a heartbeat. The car was fast before but is AMAZING now... the top-end especially... it's mindblowing to nail the throttle at 110-120 and get pushed into the seat as the car surges ahead. What it does from 80 is simply mindblowing. It also makes for devastatingly quick passing... no worries about someone purposely cutting you off or closing a hole in traffic before you can get through... they won't have time! My favorite are soccer-mom Excursion/Suburban drivers that think it's their mission in life to keep traffic speeds down. I will slow down; if they are trying to stay in my way they will slow down with me which opens a hole in front of them. I simply wait until there's enough room and ZOOM. You know you've successfully accomplished your mission when you see them furiously blinking their brights at you in the rearview mirror.
#9
MBWorld Fanatic!
Join Date: Jan 2002
Location: Carefree az usa
Posts: 1,100
Likes: 0
Received 23 Likes
on
19 Posts
2020 S560,14 ml350, 03 sl55, silver, pano, slr cams, evo headers, lsd, 2019 s63 cab.
you guys with upgrades. can you measure the main dampner (harmonic balancer) pulley and water pump pulley (if it was changed) so others on the board can know what the diameters of the upgraded pulleys are. this would be interesting to compare to other tuners pulley sizes.
#11
Senior Member
Join Date: Feb 2004
Location: NYC
Posts: 282
Likes: 0
Received 0 Likes
on
0 Posts
03 E55 k2; Ford GT
Comment Please: RENNTech Pulley and ECU Performance Upgrade
I just order the Renntech kit (pulley and ECU). I am installing the pulley myself on Saterday and will give an unbiased view on results next week.
Regards
Regards
#13
Senior Member
Join Date: Feb 2004
Location: NYC
Posts: 282
Likes: 0
Received 0 Likes
on
0 Posts
03 E55 k2; Ford GT
theboogers,
I am putting the kit on a 2003 e55 that I have modified with the s500 airtube, heat tape on the intakes and high flow filters. Should all be done by Sat
Regards
I am putting the kit on a 2003 e55 that I have modified with the s500 airtube, heat tape on the intakes and high flow filters. Should all be done by Sat
Regards
#14
MBWorld Fanatic!
Join Date: Jan 2002
Location: Carefree az usa
Posts: 1,100
Likes: 0
Received 23 Likes
on
19 Posts
2020 S560,14 ml350, 03 sl55, silver, pano, slr cams, evo headers, lsd, 2019 s63 cab.
saber- if you would post the pulley sizes that are changed it might help others with comparison. thanks
#15
Super Member
Join Date: Apr 2003
Location: Chicago
Posts: 562
Likes: 0
Received 0 Likes
on
0 Posts
E55
Originally posted by jambee888
Thanks t-bone. I am 85% convinced but a bit concerned about reliability and warranty prior to your response. With that, I would probably bite the bullet and get it done.
I also wanted to get the steering wheel and rear spoiler like yours. I have a specific budget to spend on the car since its not really mine to drive.
I also saw the CF shift gate cover at the LA Auto Show when the RENNTech E500k with the "Autowerks Express" decals up there.
Do you know by chance if Autowerks Direct and Autowerks Express are two different companies?
Thanks t-bone. I am 85% convinced but a bit concerned about reliability and warranty prior to your response. With that, I would probably bite the bullet and get it done.
I also wanted to get the steering wheel and rear spoiler like yours. I have a specific budget to spend on the car since its not really mine to drive.
I also saw the CF shift gate cover at the LA Auto Show when the RENNTech E500k with the "Autowerks Express" decals up there.
Do you know by chance if Autowerks Direct and Autowerks Express are two different companies?
#16
MBWorld Fanatic!
Join Date: Apr 2002
Location: Melbourne, Australia
Posts: 1,256
Likes: 0
Received 0 Likes
on
0 Posts
E55, F550, S600 Ducati 999
FWIW, from the research i have done, the Renntech kit does not really produce great results, compared to what can be achieved.
My suggestion is to wait and see what Evosport comes up with, if you are looking for a local supplier. My car, for example, has seen double the gains of Renntech cars.
My suggestion is to wait and see what Evosport comes up with, if you are looking for a local supplier. My car, for example, has seen double the gains of Renntech cars.
#17
Senior Member
Join Date: Nov 2003
Location: Sunshine Ranches, FL
Posts: 322
Likes: 0
Received 0 Likes
on
0 Posts
'06 M6, '05 Lambo Gallardo
Originally posted by Eddie Knopp
I have a question (pardon my ignorance), what exactly does the pulley upgrade do and how does it increase performance ?
Thanks
I have a question (pardon my ignorance), what exactly does the pulley upgrade do and how does it increase performance ?
Thanks
The s/c works off of the same belt system as the pulley that is attached to the crankshaft. The larger the diameter of the pully, the more RPMs the s/c turns with each turn of the motor. The larger pulley makes the s/c turn faster, thus producing more boost (psi).
#19
Banned
Thread Starter
Join Date: Jan 2004
Location: Vista, CA
Posts: 41
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by stephens
FWIW, from the research i have done, the Renntech kit does not really produce great results, compared to what can be achieved.
My suggestion is to wait and see what Evosport comes up with, if you are looking for a local supplier. My car, for example, has seen double the gains of Renntech cars.
FWIW, from the research i have done, the Renntech kit does not really produce great results, compared to what can be achieved.
My suggestion is to wait and see what Evosport comes up with, if you are looking for a local supplier. My car, for example, has seen double the gains of Renntech cars.
In other words, there is still a lot of room to develop additional horsepower - as suggested by the "all-out" RENNTech SL600 BiTurbo that produces almost 900 horsepower and torque on the wheels.
#20
MBWorld Fanatic!
Originally posted by jambee888
In other words, there is still a lot of room to develop additional horsepower - as suggested by the "all-out" RENNTech SL600 BiTurbo that produces almost 900 horsepower and torque on the wheels.
In other words, there is still a lot of room to develop additional horsepower - as suggested by the "all-out" RENNTech SL600 BiTurbo that produces almost 900 horsepower and torque on the wheels.
#21
Banned
Thread Starter
Join Date: Jan 2004
Location: Vista, CA
Posts: 41
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by E55JAY
I am unfamiliar with this vehicle...do you happen to have any additional information? Thank you.
I am unfamiliar with this vehicle...do you happen to have any additional information? Thank you.
Here is the RENNTech listing, under SL600 BiTurbo...
http://www.renntechmercedes.com/spla...230sl/R230.pdf
I was told that the published numbers are down-tuned as they've seen as much as 900hp on the dyno.
#22
MBWorld Fanatic!
Join Date: Apr 2002
Location: Melbourne, Australia
Posts: 1,256
Likes: 0
Received 0 Likes
on
0 Posts
E55, F550, S600 Ducati 999
Originally posted by jambee888
In the US, provisions for federal and state emissions are taken into account, plus the fact that the best gas you can use is around 91 octane on the average, is what drives the "lower" settings on these products.
In other words, there is still a lot of room to develop additional horsepower - as suggested by the "all-out" RENNTech SL600 BiTurbo that produces almost 900 horsepower and torque on the wheels.
In the US, provisions for federal and state emissions are taken into account, plus the fact that the best gas you can use is around 91 octane on the average, is what drives the "lower" settings on these products.
In other words, there is still a lot of room to develop additional horsepower - as suggested by the "all-out" RENNTech SL600 BiTurbo that produces almost 900 horsepower and torque on the wheels.
#23
Senior Member
Join Date: Feb 2004
Location: NYC
Posts: 282
Likes: 0
Received 0 Likes
on
0 Posts
03 E55 k2; Ford GT
So readers can make there own judgments without generic statements about "producing results". The last e55 on the dyno with the Renntech pulley and ECU conversion produced 417 hp and 501lbs of torque to the rear wheels. A factor of 19% was calculated for the flywheel conversion which equates to 515 hp and 618 of torque! You now can make an educated decision for yourselves on if the conversion produces results. I am not affiliated with anyone renntech or powerchip.
#24
MBWorld Fanatic!
Join Date: Jan 2002
Location: Carefree az usa
Posts: 1,100
Likes: 0
Received 23 Likes
on
19 Posts
2020 S560,14 ml350, 03 sl55, silver, pano, slr cams, evo headers, lsd, 2019 s63 cab.
again i ask. will you guys measure your pulley sizes and post them for comparision by others. thanks.