Renntech tune or EC+DP?
#1
Super Member
Thread Starter
Renntech tune or EC+DP?
I'm getting ready to tune and trying to decide if I should tune with Renntech or for about the same cost go with a EC tune and get downpipes. I believe the EC tune nets 30-40hp less than Renntech, if downpipes add 20hp+- then the Renntech is still a better value. Thought?
#2
Member
I got EC + downpipes and I like the sound. Car is a real animal now, I can fish tail it accelerating on the highway. I'm about to get new tyres then I'll try and get to the dragstrip (not too close to me unfortunately). Are you sure the Renntech tune makes more power? ie is there an instance where the two have been compared on the exact same dyno?
#4
Super Member
Thread Starter
I got EC + downpipes and I like the sound. Car is a real animal now, I can fish tail it accelerating on the highway. I'm about to get new tyres then I'll try and get to the dragstrip (not too close to me unfortunately). Are you sure the Renntech tune makes more power? ie is there an instance where the two have been compared on the exact same dyno?
I considered AMS but for $3k i'd rather go with Renntech. Weistec seems too unreliable. What tune are you running?
#6
Super Member
Can't really go wrong in the tune department. Most box tunes are within 3-5whp of each other by now. These engines have been out for a while. Why not consider OE Tuning as well? Someone was selling a set of used off road rado downpipes - save yourself some money and grab those with a tune and you would probably have enough left over for drop in filters and a car wash
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imthatguy (08-23-2016)
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#8
Super Member
Thread Starter
Eurocharged advertises 643HP / 705TQ and though it doesn't state(unless i missed it) i believe its at the crank.
Thats a 26hp/29tq difference between the two. If i'm comparing by advertised numbers than there's only a $700 difference but i know EC has been offering their tune at a discounted price and thats where i come up with the EC tune and DP will cost roughly same as RenneTech tune alone.
#9
Senior Member
EC's advertised HP/TQ number is WHP based on a Dynojet. Keep in mind, the result will vary from car to car and based on the type of Dyno used to measure HP/TQ.
Renntech is known to be somewhat conservative compared to some of more aggressive tuners. However, if you look at the real data i.e. 1/4mile and 1/2 mile time the Renntech cars are just as fast as other tuned cars with higher claimed HP/TQ if not faster.
Not sure if you read one of my threads, but I switched from EC to Renntech.
Shoot me a PM if you want my honest feedback and more info.
Ryan
Renntech is known to be somewhat conservative compared to some of more aggressive tuners. However, if you look at the real data i.e. 1/4mile and 1/2 mile time the Renntech cars are just as fast as other tuned cars with higher claimed HP/TQ if not faster.
Not sure if you read one of my threads, but I switched from EC to Renntech.
Shoot me a PM if you want my honest feedback and more info.
Ryan
Last edited by silvers2k; 08-22-2016 at 07:24 PM.
#10
Super Member
Thread Starter
EC's advertised HP/TQ number is WHP based on a Dynojet. Keep in mind, the result will vary from car to car and based on the type of Dyno used to measure HP/TQ.
Renntech is known to be somewhat conservative compared to some of more aggressive tuners. However, if you look at the real data i.e. 1/4mile and 1/2 mile time the Renntech cars are just as fast as other tuned cars with higher claimed HP/TQ if not faster.
Not sure if you read one of my threads, but I switched from EC to Renntech.
Shoot me a PM if you want my honest feedback and more info.
Ryan
Renntech is known to be somewhat conservative compared to some of more aggressive tuners. However, if you look at the real data i.e. 1/4mile and 1/2 mile time the Renntech cars are just as fast as other tuned cars with higher claimed HP/TQ if not faster.
Not sure if you read one of my threads, but I switched from EC to Renntech.
Shoot me a PM if you want my honest feedback and more info.
Ryan
If EC's advertised HP/TQ are at the wheels it would work out to roughly 755hp at the crank, that would be 85hp more than RennTech. I could be wrong but I still think EC tune is crank not wheel hp.
Last edited by vcci; 08-22-2016 at 10:59 PM. Reason: Had my numbers wrong.
#11
Senior Member
EC's advertised HP/TQ number is WHP based on a Dynojet. Keep in mind, the result will vary from car to car and based on the type of Dyno used to measure HP/TQ.
Renntech is known to be somewhat conservative compared to some of more aggressive tuners. However, if you look at the real data i.e. 1/4mile and 1/2 mile time the Renntech cars are just as fast as other tuned cars with higher claimed HP/TQ if not faster.
Not sure if you read one of my threads, but I switched from EC to Renntech.
Shoot me a PM if you want my honest feedback and more info.
Ryan
Renntech is known to be somewhat conservative compared to some of more aggressive tuners. However, if you look at the real data i.e. 1/4mile and 1/2 mile time the Renntech cars are just as fast as other tuned cars with higher claimed HP/TQ if not faster.
Not sure if you read one of my threads, but I switched from EC to Renntech.
Shoot me a PM if you want my honest feedback and more info.
Ryan
TIA
#12
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2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
you cant go wrong with any of the major tuner's base tune as they are all pretty similar
I would go with whoever is closest to you and can offer the most support, especially if you plan on doing more mods in the future
#13
Banned
The basic rule of thumb I give people is this: if it's the same hardware, it's going to be about the same tune. Just like in math class- if you're all working with the same variables (in this case, that's the hardware) you should all come up with the same answer. It's when you start changing the variables that you start to see differences in end results, and that's the big question here- do you want to go with a shop like EC that will re-flash your car and work with you on custom hardware you buy later, or a shop like RT that will charge you for expensive custom retunes every time you build it up?
Not to bash RT. Brabus is the same, Lorinser is the same, etc. Not to oversell EC. We're similar. OE is similar, maybe (I don't know those guys- but Jerry at EC is good).
Hope that helps.
#14
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#15
Senior Member
Best of luck to you!
#16
Super Member
Thread Starter
Thanks, I read your post and don't remember you mentioning if you dyno'd after your RT tune. If you did, what were the numbers?
#17
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05 SL55, 10 C63, 12 SLK350, 20 S560, 08 Bentley, 14 Porsche Cayman S
I have the Renntech tune and it is a beast with no problems. Drives like stock until you put your foot in it, then hold on.
#18
Super Member
Thread Starter
my car is going to the dealer tomorrow for a quick look-over before my warranty expires next month. soon as its back i'm pulling the ECU and sending it to RT.
#19
Senior Member
Excellent choice!
I would highly recommend replacing the spark plugs (oem) to avoid potential spark blow out.
Looking forward to your post tune thread!
I would highly recommend replacing the spark plugs (oem) to avoid potential spark blow out.
Looking forward to your post tune thread!
#20
Super Member
Thread Starter
Would it make sense to have the dealer replace the plugs before the tune since the car will already be there? If so do I have them gap them at .026?
#21
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#22
Super Member
Thread Starter
i'm happy to report that my cpu is on its way back from RT. Shipped to them yesterday, they did their magic and sent it back. Should be here tomorrow. I asked my SA to replace the plugs and service the trans and was told its not necessary. He says trans service is not due till 60k and that the plugs should be fine. Hopefully they don't fail and cause the car to go in to limp mode. Will report back with with feedback on the tune. Though i can't comment on the tune(yet) i can say that RT was very professional and responsive to each one of my calls. I plan on DP's in the near future but first want to find some wheels with the right offset followed by the RT HAS kit.
#24
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Ralcbah (08-31-2016)