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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Vishnu Dyno @ Church Automotive Dyno results



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      04-29-2007, 01:57 PM   #23
Jonmartin
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Quote:
Originally Posted by CEA 3 View Post
this car might as well be supercharged with the PEAK numbers it makes right away.... usually we see a climb as the graph goes on, on these its huge spike peak tq and HP and then it just starts dropping.

still very powerfull and great numbers. Im scared to DYNO on that dyno.
Well for comparison purposes I remember a couple other cars numbers.From yesterday.

A modded E39 M5 put down 368WHP-347TQ , A C5 Corvette with an exhaust and software I believe made 330whp & 360 WTQ , Walked U's E90 made 331whp/391Wtq.If you do the math with the other cars that were on that dyno it makes sense.At 15percent loss for instance the E39 M5 would be making 430Hp crank and 405TQ so in comparison to that I'd be making around 400Hp crank /480Crank tourqe . And the vette should have around 400hp and 430tq crank with their mods they're inline with what the should have I dunno if I can say it's inflated since the other cars are making what they should be how can my dyno and sherwins be inaccurate to "high"?
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      04-29-2007, 02:04 PM   #24
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Quote:
Originally Posted by CEA 3 View Post
this car might as well be supercharged with the PEAK numbers it makes right away.... usually we see a climb as the graph goes on, on these its huge spike peak tq and HP and then it just starts dropping.

still very powerfull and great numbers. Im scared to DYNO on that dyno.

We should setup a dyno day there in 2 or 3 weeks... I'll have my xede by then and WalkedU will have his car ready to go as well... I'm sure I Terry335 wouldnt mind coming too.
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      04-29-2007, 02:10 PM   #25
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Originally Posted by SfValley335i View Post
We should setup a dyno day there in 2 or 3 weeks... I'll have my xede by then and WalkedU will have his car ready to go as well... I'm sure I Terry335 wouldnt mind coming too.
Sounds good, but lets do a dynojet place!!
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      04-29-2007, 02:12 PM   #26
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Quote:
Originally Posted by Jonmartin View Post
Well for comparison purposes I remember a couple other cars numbers.From yesterday.

A modded E39 M5 put down 368WHP-347TQ , A C5 Corvette with an exhaust and software I believe made 330whp & 360 WTQ , Walked U's E90 made 331whp/391Wtq.If you do the math with the other cars that were on that dyno it makes sense.At 15percent loss for instance the E39 M5 would be making 430Hp crank and 405TQ so in comparison to that I'd be making around 400Hp crank /480Crank tourqe . And the vette should have around 400hp and 430tq crank with their mods they're inline with what the should have I dunno if I can say it's inflated since the other cars are making what they should be how can my dyno and sherwins be inaccurate to "high"?
I think you quoted the wrong post... i was saying you made high numbers....not your numbers are to high. might want to re read what i put.

my buddies modded m5 only put 319whp down... but who knows.... what i do know is i have ran many dynos in my day and done a lot of comparesent and i do know that the church dyno (that type of dyno) reads high... period... and im sure everyone will back me on that.... deosnt mean your car is completley inflated... i never once said that.

your car isnt out of site though...we saw shivs car make those numbers on 93 octane on a normal dyno... so no your numbers are not to "high"
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      04-29-2007, 02:13 PM   #27
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Quote:
Originally Posted by SfValley335i View Post
We should setup a dyno day there in 2 or 3 weeks... I'll have my xede by then and WalkedU will have his car ready to go as well... I'm sure I Terry335 wouldnt mind coming too.
we always have my car to dyno as well.... but im not going to redyno till my exhaust is done... and some other little things are taken care of
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      04-29-2007, 02:14 PM   #28
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Quote:
Originally Posted by Jonmartin View Post
Well for comparison purposes I remember a couple other cars numbers.From yesterday.

A modded E39 M5 put down 368WHP-347TQ , A C5 Corvette with an exhaust and software I believe made 330whp & 360 WTQ , Walked U's E90 made 331whp/391Wtq.If you do the math with the other cars that were on that dyno it makes sense.At 15percent loss for instance the E39 M5 would be making 430Hp crank and 405TQ so in comparison to that I'd be making around 400Hp crank /480Crank tourqe . And the vette should have around 400hp and 430tq crank with their mods they're inline with what the should have I dunno if I can say it's inflated since the other cars are making what they should be how can my dyno and sherwins be inaccurate to "high"?
Its not a 15% loss because you dont have the rotational mass of the tires and wheels to turn, the friction of the tires on the rollers, the flex of the tire sidewall or the effect of camber, etc. Dynapacks are actually preferred by some tuners exactly because it removes all these variables. Your numbers look okay but the car you want to compare to is the stock 335i that ran right next to you, and if you look at his results your HP numbers seem a little low.

I'm guessing he was running 93 octane which would explain some of it. After WalkedU gets his DIY BOV removed maybe we can meet up at Church's and do some more runs. There is no reason my car with TT should be making more power than yours with PROcede but for some reason it did Odds are we will see different results on a different day and all will be well in the e90 universe with lord Vishnu still reigning supreme
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      04-29-2007, 06:04 PM   #29
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Quote:
Originally Posted by Jonmartin View Post
It was nice meeting you to man but at the same time I wasn't the only one making power like that Walked U was almost as much and the 300/338 Car also beat a pretty well modded M3 recently with ease where as most people would say a stock 335 would have trouble beating a stock M3.. I guess someone has a strong car....:rocks:
I'm sorry but the 335 mentioned did not beat my M3.....
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      04-29-2007, 06:20 PM   #30
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I'm sorry but the 335 mentioned did not beat my M3.....
hey weren't we all supposed to meet up today SFValley said you blew a tire or something?..
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      04-29-2007, 11:18 PM   #31
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Quote:
Originally Posted by radgator1 View Post
Its not a 15% loss because you dont have the rotational mass of the tires and wheels to turn, the friction of the tires on the rollers, the flex of the tire sidewall or the effect of camber, etc. Dynapacks are actually preferred by some tuners exactly because it removes all these variables. Your numbers look okay but the car you want to compare to is the stock 335i that ran right next to you, and if you look at his results your HP numbers seem a little low.

I'm guessing he was running 93 octane which would explain some of it. After WalkedU gets his DIY BOV removed maybe we can meet up at Church's and do some more runs. There is no reason my car with TT should be making more power than yours with PROcede but for some reason it did Odds are we will see different results on a different day and all will be well in the e90 universe with lord Vishnu still reigning supreme
Your car with the TT and that exhaust mod was outstanding. Let me know if you are going to go back there. I need to do some Porsche stuff for Sean anyway.

Jeff
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      04-30-2007, 12:45 AM   #32
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Quote:
Originally Posted by Jeff@Eurobahn.us View Post
Your car with the TT and that exhaust mod was outstanding. Let me know if you are going to go back there. I need to do some Porsche stuff for Sean anyway.

Jeff
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yes lets setup a day in 2 or 3 weeks, I'll have my xede installed and we can compare all 3 cars. (TT, Procede, AA xede)
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      04-30-2007, 01:49 AM   #33
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Quote:
Originally Posted by Jeff@Eurobahn.us View Post
Your car with the TT and that exhaust mod was outstanding. Let me know if you are going to go back there. I need to do some Porsche stuff for Sean anyway.

Jeff
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Will do, it might be fun to do a few more pulls on his Dyno and see if I can repeat those great numbers. Still loving the TT
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      04-30-2007, 02:04 AM   #34
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How much does he charge for dyno pulls and does it come with AFR readings?

Or was this done at church also
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      04-30-2007, 01:26 PM   #35
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Quote:
Originally Posted by Walked U View Post
How much does he charge for dyno pulls and does it come with AFR readings?

Or was this done at church also
Mine was done at Church also. I am assuming we can get the same price with $45 for pulls. If we could do it on a Sat AM I would be up for it.
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      04-30-2007, 01:31 PM   #36
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Either it's the dyno or the PROcede is not improving the power curve. Peaking early and dropping off from 3.5k is not ideal. The stock flat curve from 2k to 6k is very nice, wish there was more at the high end -- just have to get a M3 for that I guess.
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      04-30-2007, 01:51 PM   #37
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My suggestion would be to do testing on a dynojet. Dynapacks are just miserable and in some cases, just a bit scary.

shiv
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      04-30-2007, 02:14 PM   #38
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Quote:
Originally Posted by shiv@vishnu View Post
My suggestion would be to do testing on a dynojet. Dynapacks are just miserable and in some cases, just a bit scary.

shiv
Not sure what you mean by miserable. It is a little scary seeing your car jacked up by the differential though but they have done thousands of Dyno runs and never had a car fall off the jack (I asked )
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      04-30-2007, 03:14 PM   #39
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On the Dyno sheet it shows ratio 3.64. What is that?
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      04-30-2007, 04:47 PM   #40
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Originally Posted by turbojet3 View Post
On the Dyno sheet it shows ratio 3.64. What is that?
I believe the software fills that in when you tell it the make/model, manual or automatic and what gear you are doing the dyno in. It looks like it is approximately the final drive ratio (3.08) times the gear ratio (1.19) of a 6MT doing a 4th gear pull rounded to the nearest 5/100ths.
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