Dyno-ed the car today, here are some numbers and the graphs. Video will be uploaded to the youtube later on, but it's nothing special. Dyno was a SuperFlow. Car is a '97 540iA with 73,566 miles on the clock - COMPLETELY STOCK!!!

RWHP 281.4
RWTQ 301.4

Run #1
http://i202.photobucket.com/albums/aa262/Orxan4ik/dyno1.jpg
http://i202.photobucket.com/albums/aa262/Orxan4ik/graph1.jpg

Run # 2
http://i202.photobucket.com/albums/aa262/Orxan4ik/dyno2.jpg
http://i202.photobucket.com/albums/aa262/Orxan4ik/graph2.jpg

Run #3

http://i202.photobucket.com/albums/aa262/Orxan4ik/dyno3.jpg
http://i202.photobucket.com/albums/aa262/Orxan4ik/graph3.jpg

Nice numbers, strong motor you have there. I have heard/read the '97 - '98 motors are pretty stout. Hope my '99 is as strong when I get it.. :)

Wow, awesome dyno...281 rwhp stock...craziness.

Nice numbers, strong motor you have there. I have heard/read the '97 - '98 motors are pretty stout. Hope my '99 is as strong when I get it.. :)

Wha wha wha?!?! You didn't tell us in the E34 forum you were getting an E39.

Traitor. :shifty :devillook

:D

...Wha wha wha?!?! You didn't tell us in the E34 forum you were getting an E39.
Traitor. :shifty :devillook :D
Oopss.. Guess I let that slip..:devillook Anyway, I'll post pics once I get the car, it's in transit..:( :rolleyes

The crucial question is what type of dyno it is. I doubt it was a dynojet or Mustang, as I think it would dyno lower. Please dont tell me it was a Dynapack!

The crucial question is what type of dyno it is. I doubt it was a dynojet or Mustang, as I think it would dyno lower. Please dont tell me it was a Dynapack!

Read my post. Thank You.

Ah yes, "superflow". Nice numbers, but not comparable to Dynojet or Mustang readings Looks like it reads about as high as a Dynapack, maybe higher.

Ah yes, "superflow". Nice numbers, but not comparable to Dynojet or Mustang readings Looks like it reads about as high as a Dynapack, maybe higher.

Whatever helps you sleep better at night

Whatever helps you sleep better at night

No need to be hurt about it...I assume you come here for accolades for your "sooper" results, but the fact is using some odd, obsure little dyno, you may as well just pencil in your own results.
Here, I will do it for you:
your car on a dynojet (what most everyone uses): 245whp TOPS.
Congrats! ;)

No need to be hurt about it...I assume you come here for accolades for your "sooper" results, but the fact is using some odd, obsure little dyno, you may as well just pencil in your own results.
Here, I will do it for you:
your car on a dynojet (what most everyone uses): 245whp TOPS.
Congrats! ;)

I'm not hurt about it, and yes i am a proud owner of a 540 (five FORTY that is :alright) and with that said I'm happy with what my car put down today. The rest (ppl like you included) just does not matter ;)

Good for you.

Good numbers congrats

Good numbers congrats

thanks :)

Ah yes, "superflow". Nice numbers, but not comparable to Dynojet or Mustang readings Looks like it reads about as high as a Dynapack, maybe higher.

I'll have to agree with you. Dynojets are basically the standard. Nice #'s though, but definately not comparable to a 281rwhp from a dynojet.

I'll have to agree with you. Dynojets are basically the standard. Nice #'s though, but definately not comparable to a 281rwhp from a dynojet.

Idk bro, I didnt pick n choose. I went to the shop with some other fellow bimmer owners and that's what I got.

Thanks, it will help me sleep better. I just wanted you to be aware that your 281rwhp on that dyno won't be comparable to 6speeds or other modified 540's who dyno similer #'s as you did on a true Dynojet. Simply stating a FACT, not trying to bash.

Idk bro, I didnt pick n choose. I went to the shop with some other fellow bimmer owners and that's what I got.

I know how that was like not to be able to pick n choose during a mini meet. I wanted to dyno on a Dynojet years back with my G35 but the meet booked a Mustang dyno for dyno day.

love to see a fellow 97 with numbers like that...!

Nice numbers anyway. Mine feels like a 500hp compared to the Mazda3 I was driving before! I've only had mine for a couple of weeks, but the Mazda hasn't moved an inch since. BTW this is a great forum.

No need to be hurt about it...I assume you come here for accolades for your "sooper" results, but the fact is using some odd, obsure little dyno, you may as well just pencil in your own results.
Here, I will do it for you:
your car on a dynojet (what most everyone uses): 245whp TOPS.
Congrats! ;)

don't be pissy because you've got the little 6. :nono

don't be pissy because you've got the little 6. :nono


You're a little late to the party....just let it go....

You're a little late to the party....just let it go....

Dear E39 owner, I do not see any reason why should we make another 15 page argument about incorrect dynos vs correct ones. If you think that my numbers are incorrect, I do not have any problem reading your opinion. However I still do not understand why would number "245" would make you feel happier? :confused

I honestly dont care....if you're happy, fine.

Yeah, I was a bit skeptical from the start. Your reading would be more like 260 rwhp on a more legit dyno...which is still way overrated from stock, so be happy! This coming from a fellow 540 (albeit E34) owner. :)

Dyno numbers really don't matter anyway. Congrats!

It was the fun you had doing it that matters. Waiting for the vid.

Mike

Yeah, I was a bit skeptical from the start. Your reading would be more like 260 rwhp on a more legit dyno...which is still way overrated from stock, so be happy! This coming from a fellow 540 (albeit E34) owner. :)

Well, I 99.9% kno that the numbers are high. But that's what the darn computer said and that's what I posted. I dont see ANY reason for anybody to tell me to chill out with my "sooper" numbers, thats all. I did not seem to argue with anyones opinion, that the numbers are high - that's cuz I personally think so too. However, why can't we just discuss it like normal people rather than "u ran it on a wacky dyno" or "my 540/6 will put down more horses" - DUUUH, no shit. Anyway, I ran it, it was fun and I thought I'd share :)

I can't speak for others but I'm not trying to tell you chill out in any way, I'm just trying to guide you in the right direction since its apparant that your mind is in the right direction by dyno'ing the vehicle in the first place.

I can't speak for others but I'm not trying to tell you chill out in any way, I'm just trying to guide you in the right direction since its apparant that your mind is in the right direction by dyno'ing the vehicle in the first place.

+1.

It's all good, I guess I got too defensive knowing that people will be pointing out what's obvious (high numbers) in a rude way :)

BMW Loe, ur signature disappeared :eyecrazy

Here's the vid, nothing special, had to drive thru a muddy backroad, tires got dirty and made a clean car (washed this morning) look like crap :rolleyes

http://www.youtube.com/watch?v=dHa1dpBPNBY

http://i202.photobucket.com/albums/aa262/Orxan4ik/DSC05391.jpg

It's all good, I guess I got too defensive knowing that people will be pointing out what's obvious (high numbers) in a rude way :)

BMW Loe, ur signature disappeared :eyecrazy

Here's the vid, nothing special, had to drive thru a muddy backroad, tires got dirty and made a clean car (washed this morning) look like crap :rolleyes

http://www.youtube.com/watch?v=dHa1dpBPNBY

http://i202.photobucket.com/albums/aa262/Orxan4ik/DSC05391.jpg


HEEEEEYYYYY I remember that car!! Soooooperb numbers man. You did what you WANTED to do so it really doesnt matter what the others say. After all they all have PHD's in physics.....didnt you know that? Sheesh :stickoutt

I mostly use the dyno for charting mods.
Use the same dyno and chart the mods and results.
You can use the same kind of dyno in different locations and get different numbers.


Jim

it is funny, as soon as someone posts #'s the first thing some people do is say "well that isn't the right dyno" it never matters which one is used there is always someone ready to piss on it...

the guy has a strong car, why wouldn't the numbers be legit...?

it is funny, as soon as someone posts #'s the first thing some people do is say "well that isn't the right dyno" it never matters which one is used there is always someone ready to piss on it...

the guy has a strong car, why wouldn't the numbers be legit...?

It's not that its not legit (it is a legit number), it's that it's not comparable to vehicles that dyno near his figures on a Dynojet. If you dyno'd on the same dyno as his, or if everyone else does, the numbers obviously would be higher, does that make the car stronger than those that dynoed on a Dynojet? No, it's just a different rating system and a different type of measured drivetrain loss. Thats all what me and I'm sure CaCatfish was trying to say, not in anyway trying to make his numbers seem less legit.

gumbi4u Great shot of the M62B44tu in acting reving its heart out :buttrock

Jeez, another dyno pissing match!

For the record, the Superflow is very similar to the Mustang brand of Dyno, as each uses a "power absorber" to turn engine HP into heat. The Dynapack is a momentum based dyno that measures the acceleration of a known mass and does some backwards math on it to determine the HP and torque.

Since Superflow actually measures power, it is not affected as adversely by things like heaver wheels and flywheels (and transmissions). Doing a before/after comparison of a lightweight flywheel on a Dynojet will lead you to believe that your engine is actually making more power. NOT SO (although you will accelerate faster because of lower rotating mass... which the dyno assumes is more power).

By the way.... Nice Dyno Run!!!!

By the way, I've done my share of programming on that Superflow DAQ unit (hanging on the wall in the photo... behind the dirty 540). Lovely unit that is capable of so much more than any dyno shop will ever know (except maybe the ones in F1 R&D departments). Unfortunately, the one that I was using was not being used in any way on an automotive application and my company is in process of removing and replacing it.

I know where you can buy one for cheap.

it's just a different rating system and a different type of measured drivetrain loss. Thats all what me and I'm sure CaCatfish was trying to say, not in anyway trying to make his numbers seem less legit.


Exactly, thank you.
If it's repeatable on the same dyno, it's legit, but it cant be compared to other results from different dynos. if I had known it would be such a sensitive issue, I wouldnt have said anything.

nice numbers congrats

nice numbers congrats

... for a Superflow. I'm SURE you'll be surprised when (if) you drop it on a Dynojet. I've done more than my share of dyno runs and tuning on cars over the years as well. As for the lightweight flywheel, it will accelerate faster, but you won't have more total hp being generated. Been there already...

... for a Superflow.

regardless

regardless

Lets get one thing straight. I'm not trying to piss on anyones numbers here.... just share information like everyone else. I hope he had a ton of fun doing it. It seems that the guys who post statements about not being comparable 'numbers' are the ones that are being bashed.

They're not trying to rain on your parade. If anything, they're trying to share some information with you.

numbers could be wrong and now I see why. For some reason the dyno operator input 24 (inches) in the TirDia. Last time I checked, my wheels were 18" and the sidewall of the tire is 1-1.5" max. That could've made a huge diff. Also, yes I have had fun doing the dyno. We've (some local forum members n I) already found a dynojet about 1.5 hrs away from where I live, so within a month or so we'll hit that. But for now, I think 24" tire diameter input could've made the numbers grow up like this.

http://i202.photobucket.com/albums/aa262/Orxan4ik/tirdia.jpg

Thanks for posting your results. Pretty sweet! :thumbup:

As for the rest of you, show me a dyno sheet from an identical vehicle with a pull on both machines (Superflow & Dynojet) back to back - in the same day (to rule out weather variations). Until we see such empirical evidence presented, your arguments are crap.

I'm not saying your argument isn't true or that evidence to support it doesn't exist - I just want to see it. I don't believe things just because people say "those dynos read higher than 'normal'."

So... prove your point and this 'discussion' will end. The winner will be crowned and we can all move on.

We now return you to your regularly scheduled pissing match.

By the way, a 265/35 18 has a diameter of 25.3".

By the way, a 265/35 18 has a diameter of 25.3".

Really? How? :eek:

Really? How? :eek:

Here ya go:

http://www.miata.net/garage/tirecalc.html

Thanks for posting your results. Pretty sweet! :thumbup:

As for the rest of you, show me a dyno sheet from an identical vehicle with a pull on both machines (Superflow & Dynojet) back to back - in the same day (to rule out weather variations). Until we see such empirical evidence presented, your arguments are crap.

I'm not saying your argument isn't true or that evidence to support it doesn't exist - I just want to see it. I don't believe things just because people say "those dynos read higher than 'normal'."

So... prove your point and this 'discussion' will end. The winner will be crowned and we can all move on.

We now return you to your regularly scheduled pissing match.

google

*edit* ah, n/m there's no point ;)

google

*edit* ah, n/m there's no point ;)

So true...

nice!

So... prove your point and this 'discussion' will end. The winner will be crowned and we can all move on.

Put it on a Dynojet and see what his results will be. I KNOW what his results will be.
Spend the $$$ for dyno time (like I did) and prove it, without a doubt, to yourself.

In the meantime, great numbers.

Ciao

Here ya go:

http://www.miata.net/garage/tirecalc.html

I see, so inputting 24" isntead of 25.3" would still affect the readings? In what way?

For all, DynoJet is coming soon :buttrock

I would love to dyno my timid 525i. See whats really cooking under the hood. Anyone know of a place in jersey?

For all, DynoJet is coming soon :buttrock

Good for you for stepping up....seriously.
I will be very interested to see how the two compare.

Don't bother with Dynojet. In fact don;t bother with any dyno session. Keep it to yourself. Even if you do Dynojet and you post numbers others here will come on to say, "naah, dynojet sucks, you NEED to use Brand XXX" Or, " The Dynojet was not calibrated" or "The dynojet operator was inexperienced" It's all opinion here. Dynojet people want others to use dynojet. Mustang guys want everyone to use mustang dynos. The merry go round is tiring.

See what I'm saying? Be happy with your obviously strong car. Who cares if you have credit with some anonymous internet people, i mean really.

Any accelleration dyno is inherently flawed.
For the closest actual power measure a load dyno is needed.
The argument about mustang vs dynojet vs superflow is just that... an argument between flawed dynos.
They compare against themselves, not each other. A load dyno is a real world conditions dyno. With turbo cars it will load the engine and make the turbo boost like it would on the road. With a NA car it will make the engine work against the dyno and show what the car would make as you drive it every day.
Unless everyone in the world uses the same kind of dyno, operated by the same people, under the same conditions... all dyno numbers need to be taken with a grain of salt.


Jim

People believe in dynojet more because it tends to read what we expect. If tomorrow, dyno caled "xxx" comes out and reads 200rwhp on 540s, people will say "reads too low". You kno why? Cuz we BELIEVE factory claims of 282 SAE hp and EXPECT the horsepower at the wheels to be around 240-250hp - thats the bottom line. And honestly I wouldnt prolly even bother with dynojet, IF I was sure that operator input the numbers that pertain to my car. For example, as of right now its a fact that he input 24" in the TirDia section. I have 265 35 R18s in the rear and we figured the total diameter of the wheels is 25.3". Would that 1.3" make the huge difference and which way? :help

does it really matter what his dyno says? (those are great numbers by the way) since he has dynoed it once and assuming he goes back to the same place, once he starts to mod the car, the numbers will show how much the mods are effecting hp. isn't that what really matters?

Hey, dynos are fun to compare....even if there are differences of temp, altitude whatever. To compare with other numbers out there today, you pretty much have to run on a Dynojet, as they are by far the most common.
When people say (often) 540i/6's dyno 250-275 at the wheels, and more for 97-98's, you know they are talking about Dynojets. They are just the standard, regardless of the method the particular dyno uses.
If you dont care to see how your car stacks up against others, and only want to chart your own mods then run on whatever kind of dyno you want.
Hell, Ive got a Hamster-Wheel-Pro-Supermatic dyno here at my house. I just ran my car and got 650whp (wheel hamster-power) which converts to 780hp at the crank. Nice number sure, but who cares?
Most people who dyno, for whatever reason, want to see how their car stacks up against others....just part of the mentality, and nothing wrong with it.

For example, as of right now its a fact that he input 24" in the TirDia section. I have 265 35 R18s in the rear and we figured the total diameter of the wheels is 25.3". Would that 1.3" make the huge difference and which way? :help

if the wheel shaft was putting out the same amount of torque, then the force applied by the tire against the pavement would be (24/25.3)=0.94862 or 94.8% of when u had 24" diameter tires

therefore ur applying about 5% less force but one the other hand ur top end speed is higher (for a given engine rpm) cos the tire travels about that much more per revolution.

People believe in dynojet more because it tends to read what we expect. If tomorrow, dyno caled "xxx" comes out and reads 200rwhp on 540s, people will say "reads too low". You kno why? Cuz we BELIEVE factory claims of 282 SAE hp and EXPECT the horsepower at the wheels to be around 240-250hp - thats the bottom line. And honestly I wouldnt prolly even bother with dynojet, IF I was sure that operator input the numbers that pertain to my car. For example, as of right now its a fact that he input 24" in the TirDia section. I have 265 35 R18s in the rear and we figured the total diameter of the wheels is 25.3". Would that 1.3" make the huge difference and which way? :help


Having those large of tires and rims would probably have an effect on rotational inertia as well. You should try with your stock rims/tires next time for a comparision. Your thread went downhill it seems, I apologize, nontheless, great vid of a rare event here for the E39 chassis :buttrock

Having those large of tires and rims would probably have an effect on rotational inertia as well. You should try with your stock rims/tires next time for a comparision. Your thread went downhill it seems, I apologize, nontheless, great vid of a rare event here for the E39 chassis :buttrock

Its all good, nthn to apologize for. :)

Here's one more taken by a friend from the forum (E36 M3)

http://www.youtube.com/watch?v=PXrs1cXE8Ok

Be happy with your obviously strong car. Who cares if you have credit with some anonymous internet people, i mean really.

+1

For all, DynoJet is coming soon

Good for you for stepping up....seriously.
I will be very interested to see how the two compare.


Did this ever happen ?

Did this ever happen ?

No, it didnt. Comin up next spring, once I take care of the vacuum leak:buttrock

Nice numbers anyway. Mine feels like a 500hp compared to the Mazda3 I was driving before! I've only had mine for a couple of weeks, but the Mazda hasn't moved an inch since. BTW this is a great forum.
:lol Yeah...my '82 280ZX hasn't seen much road time since the bimmer arrived and I totally agree, feels like 500+hp when comparing! :redspot

No one is ever happy with the dyno results. Everyone will complain about this and that, because face it, everyone is an expert when it comes to anything. Might as well pull the engine and use an actual engine dyno in order to make everyone happy.

There shouldn't be any argument here guys. Dynojet is the standard, that's all. Nice numbers bro!

god you guys are wankers....if dissing his dyno numbers makes you feel good, go ask your mommy for a hug. she obviously didn't breast feed you long enough. Which probably explains why you are smack talking from the drivers seat of a inline-6.

Don't dyno your car again. In the viewer software, you can select "Dyno Jet HP" and it will show you the DynoJet numbers. (which are ~3-5% higher!!!)

In the aftermarket world, DynoJets are used the most because they give the highest numbers. Their "correction" algorithms are not accurate, but bigger numbers sells dynos.

In the race shops that I have been it, I have never seen a dynojet dyno. I have seen SuperFlow, and Factory Pro EC997 dynos.

:sleep

Regardless of the numbers, one thing is for sure. Now you know what your power curve looks like. I don't know about the rest of you, but my sole purpose of a dyno is not to acheive top numbers, but to learn where my strengths and weaknesses are.

Don't dyno your car again. In the viewer software, you can select "Dyno Jet HP" and it will show you the DynoJet numbers. (which are ~3-5% higher!!!)

In the aftermarket world, DynoJets are used the most because they give the highest numbers. Their "correction" algorithms are not accurate, but bigger numbers sells dynos.

In the race shops that I have been it, I have never seen a dynojet dyno. I have seen SuperFlow, and Factory Pro EC997 dynos.

you know any good dyno shops in the GTA?

All you shut up already...my 6 cylinder will punish you all!!!

BWAHAHAHAHA ;)