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    • Renntech 335d Diesel tune hits 311 horsepower to the wheels and offers 24 month warranty for $1100

      Renntech is branching out to other markets from their traditional Mercedes tuning and they have several ECU tunes now available for BMW vehicles. The Renntech 335 diesel tune puts down an impressive 311 horsepower to the wheels along with a tremendous 432 wheel torque. The ECU has to be sent in for the flash unless one is local. A 24 month warranty is also included in the $1100 price. This tune should be applicable to the X5 diesel as well in the United States.




      This article was originally published in forum thread: Renntech 335d diesel tune started by Puerto Rican 335d View original post
      Comments 56 Comments
      1. m54b25's Avatar
        m54b25 -
        Click here to enlarge Originally Posted by EVOTECH Click here to enlarge
        someone check EGT Temp on RT Tune ? must be higher than 1350 F.
        You mean checking EGT during starting up, driving, cruising uphill/downhill, etc? In winter or summer? WOT run for 30min or 3 hrs? Click here to enlarge
      1. EVOTECH's Avatar
        EVOTECH -
        WOT Run for 1 Mile ......at this power what rt claimed must be 1850F. and higher then is high risk that DPF filter will Blow up!!!


        We Race with BMW Diesel Engines on 24H Nürburgring Nordschleife for more than 10 years
      1. Sticky's Avatar
        Sticky -
        Not going to tell you again @EVOTECH, promoting your products in another sponsors threads is against the rules.
      1. m54b25's Avatar
        m54b25 -
        Click here to enlarge Originally Posted by EVOTECH Click here to enlarge
        WOT Run for 1 Mile ......at this power what rt claimed must be 1850F. and higher then is high risk that DPF filter will Blow up!!!


        We Race with BMW Diesel Engines on 24H Nürburgring Nordschleife for more than 10 years
        You are not the only one that Race car here! Just for your information BMW has a higher tested calibrations on Diesels as well & beyond this power level. You will see it in the next Efficient Dynamic diesels soon M diesels. If you are trying to spread DPF scare speculations, they are YOUR own speculations, so prove it!
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        EVOTECH use to assist RENNTECH so we might want to listen a little plus they are in Germany were DIESELS roam and race, if they are trying to put SCARE TACTICS then ban them,ok. @ Sticky and EVOTECH does the same principles of engine cooling on gas also go for the DIESELS, I noticed my 335d does not have a temp gauge. Help me on this amigos!! BTW where is Terry from Burger Tuning havent herd from him, he can also give some input on this matter, AMIGOS no fighting just be professionals!!! OK lets discuss this issue
      1. Sticky's Avatar
        Sticky -
        Which issue are you asking about? The EGT's? Just ask @Terry@BMS if you want.
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        That I could do, but, to be frank with you I believe he should comment on this so there NO speculations and that EVOTECH and Terry can show up!! with hard facts ok. This would be in the interest of all of us who have DIESELS and so goes for the gassers also!Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Puerto Rican 335d Click here to enlarge
        That I could do, but, to be frank with you I believe he should comment on this so there NO speculations and that EVOTECH and Terry can show up!! with hard facts ok. This would be in the interest of all of us who have DIESELS and so goes for the gassers also!Click here to enlarge
        Whatever, I'm not opposed.
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        Thank you sticky, hope you had a great time in Vegas, whats done in Vegas stays in Vegas, LOL Dont worry wont say you cross dressed LOLClick here to enlarge
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        Ok amigos I am finally at home and have driven the car modified, my mechanic was utterly impressed since he left a 5 foot skid mark on the road when he test drove it, once he got out I asked him how did it feel? he stated DAMN it is fast!!! I then proceeded to go on the highway and let the BEAST out, WHOA was I thrilled in no time I was doing 120mph without hesitation. The car feels somewhat light and begs to be driven I spent a quarter of a tank before topping off, mind you I had half tank beforehand and the calcculations came to a 22mpg mostly city driving and my las quarter of DIESEL racing and driving smooth. I just filled her up and we'll do my testing under normal driving to see if the torque number help my mpg. I cant say enough Lenny @ RENNtech GRACIAS!!! Harmut finally remembered me after saying I know you but could not fix me in until I told him I was the Silver 02 MCS he had modified in 03. Anyway I will be posting dyno runs in next two weeks.

        The reason 2 weeks I am awaiting the AMSOIL EA (dry) cone filter to add to the dyno run. Lenny advised me that in the future to add a bigger intercooler since the car will be running harder and I will gain a noticebale Torque and HP. He told me that EGTs are below 1500, any question call him at RENNtech since I am not to GIZMO inclined as to say what is what I know just enought to pass by, would I do it again in my car? HELL YEAH i would!!!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Puerto Rican 335d Click here to enlarge
        Ok amigos I am finally at home and have driven the car modified, my mechanic was utterly impressed since he left a 5 foot skid mark on the road when he test drove it, once he got out I asked him how did it feel? he stated DAMN it is fast!!! I then proceeded to go on the highway and let the BEAST out, WHOA was I thrilled in no time I was doing 120mph without hesitation. The car feels somewhat light and begs to be driven I spent a quarter of a tank before topping off, mind you I had half tank beforehand and the calcculations came to a 22mpg mostly city driving and my las quarter of DIESEL racing and driving smooth. I just filled her up and we'll do my testing under normal driving to see if the torque number help my mpg. I cant say enough Lenny @ RENNtech GRACIAS!!! Harmut finally remembered me after saying I know you but could not fix me in until I told him I was the Silver 02 MCS he had modified in 03. Anyway I will be posting dyno runs in next two weeks.

        The reason 2 weeks I am awaiting the AMSOIL EA (dry) cone filter to add to the dyno run. Lenny advised me that in the future to add a bigger intercooler since the car will be running harder and I will gain a noticebale Torque and HP. He told me that EGTs are below 1500, any question call him at RENNtech since I am not to GIZMO inclined as to say what is what I know just enought to pass by, would I do it again in my car? HELL YEAH i would!!!
        Sounds like you are very happy.

        I'm looking forward to your dyno runs.
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        Ok Amigos I did the DYNO runs last night and I got 300 whp vice the previous stock 230 whp, Sorry guys I could not get the torque numbers since the dyno guy did not have the tools to open the ECU etc etc, we did 4 runs but they started to fall after the second run the i pressed the car to hard and the $#@! went on SAFEMODE after the second run Click here to enlarge . I did have the AMSOIL EA filter but could not install it cause the Amsoil dealer ordered a 3" inlet vice 4" inlet, therefore it sucked, be aware that I will be doing another DYNO run at another place and this time damn it I will get the TORQUE numbers!!!! I will keep all of you posted!! ok
      1. 62Lincoln's Avatar
        62Lincoln -
        PR 335d, thank you for sharing your information as you go through this process. It is very much appreciated.

        I am getting more interested in the Renntech tune for a couple of reasons: living in ATL, I am (somewhat) within driving distance of their shop, so I could drive down to have the tune installed -and- it appears they write their own tunes, which appeals to me more than someone that simply installs a tune from elsewhere. I assume that Renntech is going to be more intimately familiar with the ins and outs of my ECU if they possess the capability of writing the tune, versus a shop that simply installs a tune written elsewhere. I guess what I mean is that I think Renntech will be more capable of supporting my application because of their capabilities, versus a shop that installed some coding equipment, and bought a tune elsewhere for install. What do you think? Could Renntech address my thought process, and either affirm it or shoot it down? LOL
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        @62Lincoln
        We had a fan mounted in front but Lenny had warned me of tripping the Safe mode he had advised me to come up easy and not try to floor it , which I did because of the NEED for Speed dilema. Anyway, I learned my lesson and wont do the next time around

        Alos, talk to Lenny tell him what you need.
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        Forgot to tell you guys the car WILL leave tire marks from a dead stop and Im using VMR710 19" wheels with 10.5 in rear!!!
      1. maxnix's Avatar
        maxnix -
        With the 8AT, that car would be screaming $#@!.
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        Ditto @ maxnix, hey I not $#@!ing I love what I got anyway
      1. Sticky's Avatar
        Sticky -
        When is the new dyno taking place?
      1. 62Lincoln's Avatar
        62Lincoln -
        Click here to enlarge Originally Posted by Puerto Rican 335d Click here to enlarge
        @62Lincoln

        Alos, talk to Lenny tell him what you need.
        Could you pm me with his contact info at Renntech? They are running a 10% off Holiday deal, and I'm thinking very hard about making a trip down there. Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 62Lincoln Click here to enlarge
        Could you pm me with his contact info at Renntech? They are running a 10% off Holiday deal, and I'm thinking very hard about making a trip down there. Click here to enlarge
        Here you go, tell him Sticky sent you: PRD@renntechmercedes.com