gaspam

i dont think people are saying all turbo upgrades dont give any power over stock turbos... some are saying specifically the W3 doesnt

most people say the turbos kits arent really doing much for 1/4 mile run ET's , which is probably true due to tcu intrusion, but in trap speed it makes a difference:

stock turbos (not on meth) 129
stock turbos best (on meth) 133
upgraded AMS turbos 135
upgraded renntech turbos 138
upgraded pp-performance 140
upgraded gad 143 (not even on a prepped track)

on a 1/2 mile event the differences would be even more pronounced between stock and upgraded turbo

so if all you are going for is 1/4 mile ET, dont get upgraded turbo as not worth it.... if you want to put car lengths on stock turbo M157 car on highway, get turbo upgrade

there is a upgraded renntech turbo i have run into a few times down here on the highway, and its not even close, he puts car lengths on me with ease

PeterUbers

this is an excellent summation, thanks

Amg63-

+1 great info will save that in my notes.

Lets hope soon one of the tuners will figure out how to crack the TCU torque limits. Keeping fingers crossed.

One thing I don't understand with regards to the TCU torque limits, these guys you mentioned above with upgraded turbos, are they still running those times with the torque limits in place or are they removed?

if they are removed on upgraded turbos why can't they also do it on the stock turbos?

gaspam

trq limits in place, that's why such terrible 60ft times

as far as i have heard, only GAD has gotten around tcu limitations

BlownS4

Are they running stand alone or still MB TCU?

Amg63-

wow torque limits in place and still getting up to 140mph trap speeds. Pretty amazing motor I must say.

I wonder if removing them will blow the transmission without doing any hardware upgrades to it?

would be great one day to go back for a retune witch will remove TCU limits on stock turbos (at which point stock turbos should be trapping well into 130mph+) but at the same time will the car stay reliable long term with these TCU limits removed?

chiromikey

This car had a 60ft time in the 1.6s so there's something going on here...

gaspam

MB ecu... as far as i know, no one is running standalone on M157 yet

PeterUbers

A timeless classic:

kponti

What exactly are people blowing on these trans? Cos if its clutch packs, that's to be expected

Fairbird

rear main shaft was my case

Amg63-

Ok so if we ever get torque limits removed something is bound to break without an upgrade to go along with it.

Question is what exactly does it need

Fairbird

it won't , mine was defective

Amg63-

ok so your saying with torque limits removed tranny and everything else kept stock will stay reliable and working condition no problem?

thought mb put it there cuz they were afraid of breaking parts.

Fairbird

yes , on stock turbo

Ali_E55

my friend trapped 131mph on catless downpipe, intake and shelf tune by OE Tuning with 93 gas.


but it is true,


upgrade turbos are for runs 100mph and above.


I have seen cars putting 900lbs-ft on rear wheels on dynos, without touching TCUs.


maybe dyno mode helps !!!

Fairbird

you stating no gain in 0–60 sprints on mode turbo's ?

Amg63-

so does OE tuning remove the torque limits or do they just have a more aggressive tune than anyone else?

are these times and 131 traps on stock turbos on an AWD or RWD e63 you speak of?

TMC M5

http://www.dragtimes.com/Mercedes-Be...lip-27203.html

I believe it is the CLS63 in the link, RWD.

Amg63-

looks like OE has a solid tune for this engine.

10.8@131mph on tune only 93 pump gas, with r888,catless dp, intake, upgraded nkg spark plugs on stock turbos, impressive.

An AWD should trap close to RWD around 129-130.

900 wtq on tune only? This is insane. I think maybe they cracked the torque limits? How else?

We need an AWD guy to test out the OE tune!

Ali_E55

if you have a solid tune, stock turbos will always be faster, specially if its AWD or you launch it properly.

Ali_E55

I'm no tuner, but I have seen their tuned cars here in UAE beats every car with same mods


ie. tune vs tune
tune + downpipe VS tune + downpipe


and etc.

Ali_E55

this video is my car on dyno




more than 3 years ago


my mods were


- true 3" downpipe
- catless 3" midpipe ( stock resonator and muffler)
- custom intake
- and a GREAT Tune by Jeremy from OE Tuning (custom on mainline dyno)
- gas was 98 ron ( = 93 octane USA)
- colder spark plugs
- 2013+ divorced cooling system





and my car has now 200k km on the clock, still stock gearbox without any issues ( I change the gearbox oil every 45k km and engine oil every 10k km.)

gaspam

renntech tune and stock turbos has a cls63 that traps 131 also

http://www.dragtimes.com/Mercedes-Be...lip-23883.html

and there is no way that CLS is making 900 wtrq (especially on a mainline dyno) and trapping only 131

Ali_E55

yes Renntech is trapping 131, but you saw how their CLS ?


full drag prep, front light wheels.




the CLS on the mainline dyno is MY car edition 1, you can tell from the color, (its not the same as the one who trapped 131 and 10.8. that one is a grey , picture on dragtimes and he had his street wheel 10.5" rear and 9.5" front with R888 at the back which he always drove it like that on street and his front tires were Pirelli P Zero))


my car is faster than his we tested.


I did my car full day custom on dyno


the one in the drag ( tested on same dyno showed 840lbs and 640rwhp)