Ultimate Street Sleeper - Mercedes W124 'Superturbodiesel'
Discussion
Santa pod vs another home built 500odd bhp rear drive car....that'll sort this...
In all honestly would like to know the trap speed for this car.
680bhp does seem a bloody lot for not much mods given I know of a stroker b5 RS4 with massive fortunr ploughed into it being less than that...not saying either one is right.
In all honestly would like to know the trap speed for this car.
680bhp does seem a bloody lot for not much mods given I know of a stroker b5 RS4 with massive fortunr ploughed into it being less than that...not saying either one is right.
RemyMartin said:
Santa pod vs another home built 500odd bhp rear drive car....that'll sort this...
In all honestly would like to know the trap speed for this car.
680bhp does seem a bloody lot for not much mods given I know of a stroker b5 RS4 with massive fortunr ploughed into it being less than that...not saying either one is right.
I was thinking along the same lines: this isn't so hard to prove either way. An independent rolling road would do. In all honestly would like to know the trap speed for this car.
680bhp does seem a bloody lot for not much mods given I know of a stroker b5 RS4 with massive fortunr ploughed into it being less than that...not saying either one is right.
Loser gives a fiver to charity or something. Doesn't have to be bitter and unpleasant does it?
Similar engine set up, 100kph to 260kph
https://www.youtube.com/watch?v=NKazym6zTGg
Unless this is being filmed on a dyno it's utterly bonkers, take a look
https://www.youtube.com/watch?v=NKazym6zTGg
Unless this is being filmed on a dyno it's utterly bonkers, take a look
I actually want Max_Torque to post more as his industry knowledge and expertise means I (we?) get to learn a lot from him.
I am interested in this thread and think the car is superb but wonder how 680bhp/8k is possible although I'm not saying I disbelieve the op, just curious as I've never come across such a thing!
Also 3 bar!
I am interested in this thread and think the car is superb but wonder how 680bhp/8k is possible although I'm not saying I disbelieve the op, just curious as I've never come across such a thing!
Also 3 bar!
Palmers said:
Canthandleafastdiesel
what do you mean? I drive a 335d as my daily (std, not mapped, never will be) i designed a significant part of the multi Le Mans wining Tdi engine's combustion system, and have worked on numerous diesel passenger car projects for all the major OEMS and motorsport consultancies.But apparently i "hate" diesels...........
Max_Torque said:
I drive a 335d as my daily (std, not mapped, never will be) i designed a significant part of the multi Le Mans wining Tdi engine's combustion system, and have worked on numerous diesel passenger car projects for all the major OEMS and motorsport consultancies.
But apparently i "hate" diesels...........
Well clearly you do as you've evidently hobbled a number of diesels so they won't even do 8000rpm.But apparently i "hate" diesels...........
Max torque
Do you not accept dyno readouts as proof of bhp then unless they are all calibrated to the nth degree?
If i said my car had 300 bhp would you argue it because the dyno isnt on one youve witnessed?
I do agree some dynos can vary / under / overread so you can only test on a variety to eliminate this. I find dynodynamics very consistent
I have a friend making 420bhp on a vw 3.0 v6 with an s200 turbo (i said s300 in a previous post, my mistake)
His one is common rail from 2010 and limited by elements to do with the ecu - managing the fuel and boost etc.
So if 420bhp is doable from a midly fettled vw 3.0 v6 with upgraded hpfp and intercooler and a big turbo i have no reason to believe the 600+bhp claimed by the OP
Think you have gone on and on and on a bit in this thread.
I understand your points regarding the limitation of power and combustion but your whole argument falls back to the car not being able to make the claimed power.
Seems daft tbh.
http://uk-mkivs.net/topic/333546-audi-a4-30-tdi-s2... my friends build thread.
Do you not accept dyno readouts as proof of bhp then unless they are all calibrated to the nth degree?
If i said my car had 300 bhp would you argue it because the dyno isnt on one youve witnessed?
I do agree some dynos can vary / under / overread so you can only test on a variety to eliminate this. I find dynodynamics very consistent
I have a friend making 420bhp on a vw 3.0 v6 with an s200 turbo (i said s300 in a previous post, my mistake)
His one is common rail from 2010 and limited by elements to do with the ecu - managing the fuel and boost etc.
So if 420bhp is doable from a midly fettled vw 3.0 v6 with upgraded hpfp and intercooler and a big turbo i have no reason to believe the 600+bhp claimed by the OP
Think you have gone on and on and on a bit in this thread.
I understand your points regarding the limitation of power and combustion but your whole argument falls back to the car not being able to make the claimed power.
Seems daft tbh.
http://uk-mkivs.net/topic/333546-audi-a4-30-tdi-s2... my friends build thread.
Edited by xjay1337 on Saturday 6th February 20:58
Edited by xjay1337 on Saturday 6th February 20:59
xjay1337 said:
Max torque
Do you not accept dyno readouts as proof of bhp then unless they are all calibrated to the nth degree?
Not when that dyno figure quite clearly would involve breaking the laws of physics. You can make a dyno read any number. Take my early point about how was the engine speed calibrated against wheel speed?Do you not accept dyno readouts as proof of bhp then unless they are all calibrated to the nth degree?
xjay1337 said:
I find dynodynamics very consistent
About 10 years ago, when we were looking to install another set of chassis rolls, i had the dyno dynamics guys run a test car i'd properly bench marked, and they were 25% out on their power reading compared to my £10M fully homologation std chassis rolls test facility......xjay1337 said:
I understand your points regarding the limitation of power and combustion but your whole argument falls back to the car not being able to make the claimed power.
Seems daft tbh.
If i said "I understand your points on the laws of gravity, but the other day i step out my upstairs window and flew to the nearest tree" you would suggest i am talking bSeems daft tbh.
ks and in fact do not understand the laws of gravity. This is how this thread sounds to me.That they may be. But you and I and this chap post up dyno charts and thats all we have to go on. Instead of just saying ok or not posting or whatever you are trying to make out its not possible.
I understand what you are saying RE speed/dyno but did you check out my friends build? More complex and restricted engine and smaller turbo, similar graph plot etc.
I dont imagine his car be making any useable power at 8k but it may well be able to run at 8k with less fuelling/boost.
I would estimate peak power at about 3500rpm and for it to hold/build up to about 6k, tail off by 6500.
My car makes its power at 3800 to 4800 . Revs to 5500 (high for a diesel) but at this point is notably not making power (about 140 at this point). It goes from injecting 85mg at 3000rpm to about 40mg at 5500 and boost is wayy down at like 13psi.
Dont know much about mechanical injection tuning so not sure if you can control that element of it.
Im sure you are very clever and id love to have a drink with you to hear and learn but you do come across very cynical. :-/ maybe thats my viewpoint
I understand what you are saying RE speed/dyno but did you check out my friends build? More complex and restricted engine and smaller turbo, similar graph plot etc.
I dont imagine his car be making any useable power at 8k but it may well be able to run at 8k with less fuelling/boost.
I would estimate peak power at about 3500rpm and for it to hold/build up to about 6k, tail off by 6500.
My car makes its power at 3800 to 4800 . Revs to 5500 (high for a diesel) but at this point is notably not making power (about 140 at this point). It goes from injecting 85mg at 3000rpm to about 40mg at 5500 and boost is wayy down at like 13psi.
Dont know much about mechanical injection tuning so not sure if you can control that element of it.
Im sure you are very clever and id love to have a drink with you to hear and learn but you do come across very cynical. :-/ maybe thats my viewpoint
currybum said:
If you read the thread about why actual automotive engineers mostly avoided Internet forums... Well this is an example of why.
We have to work in the world where the laws of thermodynamics and physics apply... Any time we actually try to point out when something clearly BS we get told that we don't know what we are taking about by people who really don't know what they are talking about.
Damn you Engineers for taking your normally well paid for time to educate the ignorant! It's just as well you're not a precious commodity to have on a car enthusiasts forum as that way you can b√¢¢€r off and let everyone else can live happily in their fantasy world!We have to work in the world where the laws of thermodynamics and physics apply... Any time we actually try to point out when something clearly BS we get told that we don't know what we are taking about by people who really don't know what they are talking about.
PS Please pm me on the site you all decide to reconvene to so I may occasionally indulge in the dishonourable deed of actually learning something
I think I'm with Max Torque here. basically he's saying that diesel is a slow burning fuel and in order to make the most of it, you need a low reving engine. Which is why he's suggesting 8k rpm is BS.
But, would you, MT, agree that it's possible that the engine could rev that high and be making FA power?
Or are you calling BS on that too?
Seems to me like it's making a stupid amount and they may have calibrated the dyno incorrectly?
But, would you, MT, agree that it's possible that the engine could rev that high and be making FA power?
Or are you calling BS on that too?
Seems to me like it's making a stupid amount and they may have calibrated the dyno incorrectly?
Gassing Station | Readers' Cars | Top of Page | What's New | My Stuff