Decat and tune vs Headers and tune
#1
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Thread Starter
Decat and tune vs Headers and tune
My friends in the UK tell me that a decat and tune is near enough the same power on the dyno as a set of headers and a tune. Apparently the car will put down between 555-560hp (crank) with a decat and solid tune, whereas the headers and tune will net around 560-570hp, maybe slightly more.
Is there a great deal of truth in this?
(FWIW i've got a W212 E63)
Is there a great deal of truth in this?
(FWIW i've got a W212 E63)
#2
I think I'm one of the only people who've fully decatted their car on here (its not legal in like 95%+ of the world)...be careful with those claims, you'll have everyone and their mom calling you a liar because they automatic assume you c63 is bone stock without any mods.
Anyways, my car put down 470whp / 489whp on different days/dynos and then again with 460whp on another dyno, thats fully decated with some other mods though, row boxes, pulley, upgraded diff, custom tune, and probably some other crap im forgetting ...be warned though i think fully decatted is actually louder then headers or just as loud
Anyways, my car put down 470whp / 489whp on different days/dynos and then again with 460whp on another dyno, thats fully decated with some other mods though, row boxes, pulley, upgraded diff, custom tune, and probably some other crap im forgetting ...be warned though i think fully decatted is actually louder then headers or just as loud
Last edited by avery.whss; 11-23-2015 at 12:49 PM.
#3
MBWorld Fanatic!
My friends in the UK tell me that a decat and tune is near enough the same power on the dyno as a set of headers and a tune. Apparently the car will put down between 555-560hp (crank) with a decat and solid tune, whereas the headers and tune will net around 560-570hp, maybe slightly more.
Is there a great deal of truth in this?
(FWIW i've got a W212 E63)
Is there a great deal of truth in this?
(FWIW i've got a W212 E63)
#4
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c63 coupe p31weistec stg3 SOLD,2013 C63 BLACK SERIES.
I think I'm one of the only people who've fully decatted their car on here (its not legal in like 95%+ of the world)...be careful with those claims, you'll have everyone and their mom calling you a liar because they automatic assume you c63 is bone stock without any mods.
Anyways, my car put down 470whp / 489whp on different days/dynos and then again with 460whp on another dyno, thats fully decated with some other mods though, row boxes, pulley, upgraded diff, custom tune, and probably some other crap im forgetting ...be warned though i think fully decatted is actually louder then headers or just as loud
Anyways, my car put down 470whp / 489whp on different days/dynos and then again with 460whp on another dyno, thats fully decated with some other mods though, row boxes, pulley, upgraded diff, custom tune, and probably some other crap im forgetting ...be warned though i think fully decatted is actually louder then headers or just as loud
#5
MBWorld Fanatic!
Thread Starter
I think I'm one of the only people who've fully decatted their car on here (its not legal in like 95%+ of the world)...be careful with those claims, you'll have everyone and their mom calling you a liar because they automatic assume you c63 is bone stock without any mods.
Anyways, my car put down 470whp / 489whp on different days/dynos and then again with 460whp on another dyno, thats fully decated with some other mods though, row boxes, pulley, upgraded diff, custom tune, and probably some other crap im forgetting ...be warned though i think fully decatted is actually louder then headers or just as loud
Anyways, my car put down 470whp / 489whp on different days/dynos and then again with 460whp on another dyno, thats fully decated with some other mods though, row boxes, pulley, upgraded diff, custom tune, and probably some other crap im forgetting ...be warned though i think fully decatted is actually louder then headers or just as loud
FYI I've got a W212, so a decat for me, would certainly be a full decat, hence why it would make close to the 560+ crank power that I was referring to.
Hmmm...interesting...wondering if I should just save my money and do the decat/tune, rather than headers/tune.
#6
http://www.dragtimes.com/Mercedes-Be...lip-22565.html
430 WHP TUNE ONLY. T-U-N-E only..Do i need to spell it out for you again or bold it in size 9000 font?
Last edited by avery.whss; 11-23-2015 at 06:35 PM.
#7
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c63 coupe p31weistec stg3 SOLD,2013 C63 BLACK SERIES.
i love how you think 550 crank HP = less then 400whp
http://www.dragtimes.com/Mercedes-Be...lip-22565.html
430 WHP TUNE ONLY. T-U-N-E only..Do i need to spell it out for you again or bold it in size 9000 font?
http://www.dragtimes.com/Mercedes-Be...lip-22565.html
430 WHP TUNE ONLY. T-U-N-E only..Do i need to spell it out for you again or bold it in size 9000 font?
I met a guy the other who had a custom dyno tune n a mustang making 430whp and said he redynoed on a another md n got similar numbers...
he had cat delete with a xpipe he said,you can check my instagram n see his page too
lucky for me he was local and I couldn't wait to get a run with him
im driving my friends c63 forum member here MTHIS
oo for the record camera car put down 440whp on a dynojet like 3 days ago lol which would mean under 400whp on a mustang or w.e ur math says about bhb but heres the outcome of the race enjoy
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#9
MBWorld Fanatic!
listen man I know you think your car makes w.e u say but the truth is much different
I met a guy the other who had a custom dyno tune n a mustang making 430whp and said he redynoed on a another md n got similar numbers...
he had cat delete with a xpipe he said,you can check my instagram n see his page too
lucky for me he was local and I couldn't wait to get a run with him
im driving my friends c63 forum member here MTHIS
oo for the record camera car put down 440whp on a dynojet like 3 days ago lol which would mean under 400whp on a mustang or w.e ur math says about bhb but heres the outcome of the race enjoy
Oe tuned c63 vs custom tuned c63 - YouTube
I met a guy the other who had a custom dyno tune n a mustang making 430whp and said he redynoed on a another md n got similar numbers...
he had cat delete with a xpipe he said,you can check my instagram n see his page too
lucky for me he was local and I couldn't wait to get a run with him
im driving my friends c63 forum member here MTHIS
oo for the record camera car put down 440whp on a dynojet like 3 days ago lol which would mean under 400whp on a mustang or w.e ur math says about bhb but heres the outcome of the race enjoy
Oe tuned c63 vs custom tuned c63 - YouTube
#10
Super Member
heres a videos of the dyno . C63 dyno - YouTube
#12
dyno's aren't even to be taken seriously like has been said 100's of times..we all live in different cities with different variations of things..you're on the east coast..im on the west..etc etc.
im not sure why do you assume i have the same mods as everyone else? Lol....I have no cats, and the EC pulley from like 2 years ago..So 2 things that your buddy with the x-pipe doesn't have, there you go, I bet hes still running a stock diff also which is pretty sloppy @ putting the power down...im not just running an x-pipe with a tune..like you for some reason think i am, my car might pull a bit harder too because the top end has basically been rebuilt twice.
the C63 does not have a 20%+ power train loss...around 18% is what the techs at benz told me.
im not sure why do you assume i have the same mods as everyone else? Lol....I have no cats, and the EC pulley from like 2 years ago..So 2 things that your buddy with the x-pipe doesn't have, there you go, I bet hes still running a stock diff also which is pretty sloppy @ putting the power down...im not just running an x-pipe with a tune..like you for some reason think i am, my car might pull a bit harder too because the top end has basically been rebuilt twice.
the C63 does not have a 20%+ power train loss...around 18% is what the techs at benz told me.
Last edited by avery.whss; 11-24-2015 at 02:23 AM.
#13
MBWorld Fanatic!
Anyways, my car put down 470whp / 489whp on different days/dynos and then again with 460whp on another dyno, thats fully decated with some other mods though, row boxes, pulley, upgraded diff, custom tune, and probably some other crap im forgetting ...be warned though i think fully decatted is actually louder then headers or just as loud
Your car is just very special. Either that or you are.
#15
theres been a ton of other people who've posted dyno sheets/videos and 1/4's times of them running just a eurocharge only tune and put down 400-430whp - TUNE ONLY. Even Eurocharge has had a bunch of 420+ whp cars with just EC V5, no other mods, and thats on the east coast where the air is complete junk, I even think a C63 dyno'd 400+whp stock last summer or the summer before, I think that was kristons actually and it was like 418whp stock or something around there.
im not sure why you guys keep thinking my car is bone stock just running eurocharge V5..i have no idea why..maybe you guys are reading some other dudes posts
Anyways AMG is building a track in my city, I'll be sure to run the 1/4 once it's finished next year.
Last edited by avery.whss; 11-24-2015 at 11:44 AM.
#16
MBWorld Fanatic!
Who cares about dyno numbers. They are only good for calculating gains based on your baseline.
Look at the video above.... their dyno numbers were very similar... but Mthis' car pulled buses on him.....
Look at the video above.... their dyno numbers were very similar... but Mthis' car pulled buses on him.....
#17
Oh my...I think you boys need to go back to grade 1 and learn how to read...Lol.
OE Tuning Custom | Dashdaq Zeitronix | AR LTH | MAXPSI Cat Back | CF Airboxes | aFe PRO R Filters | CF Intake | 180F Thermostat | Weistec Catch Can | CF JBSpeed Lip | CF diffuser | Revozport side | DADS CF Hood | DADS CF Trunk | Driver + Passenger SPARCO Racing Seat | FORGESTAR F14 | 245F/315R Toyo 888 | HMS Wide body | Tikore Lugs | Girodisc Rotors | Porterfield Pads | Teflon Stainless Lines | Camber Kit | Toe Link Kit | Quaife LSD | KW V3 |
Are ALL mthis mods
Vs
C63 with custom tune and xpipe
No **** shirlock a car with all the mods like mthis has pulled on just a Tune only x-pipe ...Who even knows what custom tune that guy is running...I run OE's custom tune and I'm sure mthis can agree it does pull hard
I HIGHLY doubt a "tune only x-pipe" put down the same numbers as a LTH OE custom tuned car.
You guys are comparing apples to oranges...seriously..Lmao...thats like racing a bone stock C63 when you have a stage 3 blower then **** talking the stock c63 because its "slow" like WOT!?!?! The logic on this forum gives me so much AIDs/Herpes/Cancer.
if you want want something to compare too put mthis car up against another LTH c63 or fully decatted with similar mods with a OE tune or EC V5 or Velos tune and THEN compare..don't freaking compare a cheap little x-pipe mod with a $700 tune to a basically fully bolted on c63
OE Tuning Custom | Dashdaq Zeitronix | AR LTH | MAXPSI Cat Back | CF Airboxes | aFe PRO R Filters | CF Intake | 180F Thermostat | Weistec Catch Can | CF JBSpeed Lip | CF diffuser | Revozport side | DADS CF Hood | DADS CF Trunk | Driver + Passenger SPARCO Racing Seat | FORGESTAR F14 | 245F/315R Toyo 888 | HMS Wide body | Tikore Lugs | Girodisc Rotors | Porterfield Pads | Teflon Stainless Lines | Camber Kit | Toe Link Kit | Quaife LSD | KW V3 |
Are ALL mthis mods
Vs
C63 with custom tune and xpipe
No **** shirlock a car with all the mods like mthis has pulled on just a Tune only x-pipe ...Who even knows what custom tune that guy is running...I run OE's custom tune and I'm sure mthis can agree it does pull hard
I HIGHLY doubt a "tune only x-pipe" put down the same numbers as a LTH OE custom tuned car.
You guys are comparing apples to oranges...seriously..Lmao...thats like racing a bone stock C63 when you have a stage 3 blower then **** talking the stock c63 because its "slow" like WOT!?!?! The logic on this forum gives me so much AIDs/Herpes/Cancer.
if you want want something to compare too put mthis car up against another LTH c63 or fully decatted with similar mods with a OE tune or EC V5 or Velos tune and THEN compare..don't freaking compare a cheap little x-pipe mod with a $700 tune to a basically fully bolted on c63
Last edited by avery.whss; 11-24-2015 at 01:41 PM.
#18
MBWorld Fanatic!
Thread Starter
...so in conclusion....a full decat and tune is near enough the same as a set of longtubes with a tune, except you save a couple G's on the outlay for the longtubes.
Thanks guys. I might rethink my strategy now. Maybe I'll just leave the longtubes and do a decat and tune with crank pulley. I'll keep you posted.
Thanks guys. I might rethink my strategy now. Maybe I'll just leave the longtubes and do a decat and tune with crank pulley. I'll keep you posted.
#19
Super Member
...so in conclusion....a full decat and tune is near enough the same as a set of longtubes with a tune, except you save a couple G's on the outlay for the longtubes.
Thanks guys. I might rethink my strategy now. Maybe I'll just leave the longtubes and do a decat and tune with crank pulley. I'll keep you posted.
Thanks guys. I might rethink my strategy now. Maybe I'll just leave the longtubes and do a decat and tune with crank pulley. I'll keep you posted.
Usual bolt-ons (headers, tune, filters, airbox)
Weight Reduction (remove spare, lightweight seats, lightweight rotors)
Power adder (supercharger, nitrous)
Forget dyno's, they are just for tuning.
I wouldn't do the crank pulley. I doubt it makes much if any horsepower.
Most of all enjoy the car.
#20
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c63 coupe p31weistec stg3 SOLD,2013 C63 BLACK SERIES.
...so in conclusion....a full decat and tune is near enough the same as a set of longtubes with a tune, except you save a couple G's on the outlay for the longtubes.
Thanks guys. I might rethink my strategy now. Maybe I'll just leave the longtubes and do a decat and tune with crank pulley. I'll keep you posted.
Thanks guys. I might rethink my strategy now. Maybe I'll just leave the longtubes and do a decat and tune with crank pulley. I'll keep you posted.
#21
Junior Member
i have thought about this set up as i really would like to keep the heat down around the engine (middle east weather) . i might do it . will try to post if its done
#22
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1990 300ce supercharged and intercooled
I do not know if things have changed since I was playing with these. But member superlubricity and I did a step by step. Years ago dyno and track times. You can look up his threads. I can tell you that the headers made a huge difference vs just catless. The cats are not the biggest restriction in my opinion. The manifolds are. The cat cross section is pretty huge The manifold opining is tiny.
He had plm manifolds that were a little larger opening than stock and there was not much difference between no front cats only and no cats. Maybe a couple hp and 1mph trap speed.
Just my experience.
He had plm manifolds that were a little larger opening than stock and there was not much difference between no front cats only and no cats. Maybe a couple hp and 1mph trap speed.
Just my experience.
#24
Junior Member
#25
Nice get a vid of you running the car. Good alternative for those who don't necessarily have the money for longtubes. Just the sound alone will make the mode worth it and put a smile on your face even if it doesn't give you that much of a gain.