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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 03-05-2005, 08:48 PM
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My 330ci Dyno Numbers

Well, finally had a chance to dyno the car today, and I'm pretty pleased with the results. The mods are in the sig.

If only I was running premium unleaded, surely there were a few other horses in there. A fellow friend with a 330ci with the exact same mods got 210/210, which is very strong.

Props to Dinan, since these numbers match exactly what they claim on their website.
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  #2  
Old 03-06-2005, 07:55 AM
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shizat63 shizat63 is offline
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Wow, nice numbers

Going by the graph, aside from the beautiful music would there be any reason to shift above 6K?
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  #3  
Old 03-06-2005, 09:42 AM
TeenerPaul TeenerPaul is offline
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Quote:
Originally Posted by shizat63
Wow, nice numbers

Going by the graph, aside from the beautiful music would there be any reason to shift above 6K?
Yes. For example shifting from 2nd to 3rd the available thrust will go from 1102lbs in 2nd at redline to 921lbs in 3rd at 4300rpm. The only time it would not make sense to shift at redline would be shifting from 5th to 6th. Then thrust would be 441lbs in fifth at redline and 459lbs in 6th at 5525rmp, but I guess that really does not matter because 5th at redline is 163mph, and I don't think a 330 will do that.
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  #4  
Old 03-06-2005, 06:57 PM
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Matthew330Ci Matthew330Ci is offline
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WTH, which grade fuel were you running?
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  #5  
Old 03-06-2005, 09:21 PM
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I was running 89 octane, completely my mistake.

I accidentaly filled up last Thu with 89, and didn't even notice until it was filled up. Oh well, lesson learned. It won't happen again.
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  #6  
Old 03-07-2005, 01:43 AM
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Quote:
Originally Posted by fso_BamBam
If only I was running premium unleaded, surely there were a few other horses in there. A fellow 330ci driver with the exact same mods got 209/210, which is very strong.


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  #7  
Old 03-07-2005, 08:50 AM
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Very impressive torque curve, or should it be called a torque plateau? I've seen lots of people bash Dinan for being overpriced and underachieving, but I like what they offer. Yes, they are expensive, but their testing and support are excellent. Combine that and the fact that you can have their compontents installed at several select dealerships, they are convenient for those that don't have time or a place to turn their own wrenches.
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  #8  
Old 03-07-2005, 11:13 AM
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Quote:
Originally Posted by wag-zhp
Very impressive torque curve, or should it be called a torque plateau? I've seen lots of people bash Dinan for being overpriced and underachieving, but I like what they offer. Yes, they are expensive, but their testing and support are excellent. Combine that and the fact that you can have their compontents installed at several select dealerships, they are convenient for those that don't have time or a place to turn their own wrenches.
Yeah, I was very happy. I mean, sure, you can never compare different dynos, done at different places/times, etc. But it sure is nice to see that my numbers are much higher than some other ZHP numbers and other E46 numbers I've seen.

In fact, since my friend who has the exact same mods dynoed at 210/210, it's even more of an affirmation.

The butt dyno was telling the truth. The car has been quite a bit faster and I'm very much enjoying it.
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  #9  
Old 03-07-2005, 01:09 PM
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brave1heart brave1heart is offline
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Quote:
Originally Posted by fso_BamBam
Yeah, I was very happy. I mean, sure, you can never compare different dynos, done at different places/times, etc. But it sure is nice to see that my numbers are much higher than some other ZHP numbers and other E46 numbers I've seen.

In fact, since my friend who has the exact same mods dynoed at 210/210, it's even more of an affirmation.

The butt dyno was telling the truth. The car has been quite a bit faster and I'm very much enjoying it.
Love the flat torque curve!! Near 200 or more rwhp from 5,400 to 6,700!! Now that is a good reason to shift near the rev limiter - shifting at 6K would drop you probably ~ 4,600 RPMs where you're making less HP than in the mid-6's. So I guess you gained ~ 13 peak rwhp (possibly 5 more with premium gas) due to the Exhaust/CAI/Throttle Body/Stage 3 Software. How much did these cost installed?
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  #10  
Old 03-07-2005, 04:06 PM
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Quote:
Originally Posted by brave1heart
Love the flat torque curve!! Near 200 or more rwhp from 5,400 to 6,700!! Now that is a good reason to shift near the rev limiter - shifting at 6K would drop you probably ~ 4,600 RPMs where you're making less HP than in the mid-6's. So I guess you gained ~ 13 peak rwhp (possibly 5 more with premium gas) due to the Exhaust/CAI/Throttle Body/Stage 3 Software. How much did these cost installed?
Make no mistake, Dinan is not cheap. The only reason I got my mods is because it was around Christmas and I managed to negotiate a sweet deal with the dealer. All told, the whole thing (including installation) cost right around $3K, a savings of about 20%.

Here's a question to anyone who can answer. Just out of curiosity, what do these numbers translate at the crank? What sort of drivetrain loss would be acceptable here? About 15%? That's the number I've always heard as the widely accepted figure.

I realize the real numbers are those at the wheels, but when I work the math (using 15%), it comes to 240/240, which is crazy in the torque department.
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Last edited by fso_BamBam; 03-07-2005 at 04:45 PM.
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  #11  
Old 03-07-2005, 07:14 PM
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Quote:
Originally Posted by fso_BamBam
Make no mistake, Dinan is not cheap. The only reason I got my mods is because it was around Christmas and I managed to negotiate a sweet deal with the dealer. All told, the whole thing (including installation) cost right around $3K, a savings of about 20%.

Here's a question to anyone who can answer. Just out of curiosity, what do these numbers translate at the crank? What sort of drivetrain loss would be acceptable here? About 15%? That's the number I've always heard as the widely accepted figure.

I realize the real numbers are those at the wheels, but when I work the math (using 15%), it comes to 240/240, which is crazy in the torque department.
That' some seriously expensive HP!! But you do get better drivability, throttle response, sound, warranty, probably resale value with all Dinan mods, etc...

I'd go with 15%. It's got great power especially considering how flat the torque curve is
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  #12  
Old 03-09-2005, 01:11 AM
Iniquity Iniquity is offline
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Quote:
Originally Posted by fso_BamBam
Make no mistake, Dinan is not cheap. The only reason I got my mods is because it was around Christmas and I managed to negotiate a sweet deal with the dealer. All told, the whole thing (including installation) cost right around $3K, a savings of about 20%.

Here's a question to anyone who can answer. Just out of curiosity, what do these numbers translate at the crank? What sort of drivetrain loss would be acceptable here? About 15%? That's the number I've always heard as the widely accepted figure.

I realize the real numbers are those at the wheels, but when I work the math (using 15%), it comes to 240/240, which is crazy in the torque department.
loss is closer to 17% for manuals.... and about 20% for steps.. at least that's what our last dyno day indicated.. and the tuners said that's what they typically see.. most people think it's 15% loss because they use dynojets, which inflate numbers by 10-15whp.. even more for high horsepower cars..

for example.. on a dynojet, my ZHP puts down 221/210 to the wheels.. on a dynamix dyno it puts down 210/200 to the wheels because it's a loaded dyno.... my car shows about 17% drivetrain loss on a dyno.. soooo.. on the dynojet dyno i'm putting down 266/253 at the crank.. but on a dynamix dyno i'm putting down 253/240 to the crank...

however, in your case, since it looks like you used a dynojet, you should stick to 15% drivetrain loss.. as using 17% will inflate your numbers even more..

it's all relative.. but the dynamix dyno is more accurate since it's loaded it's the one I would trust as being the most realistic of the two dynos on my car..

typical dynojet = bragging rights wheel power
loaded dynos (most common is mustang) = realistic wheel power

hope that helps.

EDIT: i say typical dynojet cause i think dynojet has some new loaded dynos that have come out which are better.
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Last edited by Iniquity; 03-09-2005 at 01:14 AM.
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  #13  
Old 03-09-2005, 07:31 PM
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Oh, BTW, don't try this at home:
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  #14  
Old 03-09-2005, 07:58 PM
drallafi drallafi is offline
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Originally Posted by fso_BamBam
Oh, BTW, don't try this at home:

Dude, your trunk's open.
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Old 03-09-2005, 08:01 PM
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Dude, your trunk's open.
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  #16  
Old 03-09-2005, 08:39 PM
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Dude, your trunk's open.
Yeah, that's not a good thing when traveling at 160mph+ is it?

It wont' happen again.
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  #17  
Old 03-10-2005, 10:32 AM
mecklaiz mecklaiz is offline
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Originally Posted by fso_BamBam
Oh, BTW, don't try this at home:
Not to mention your parking brake is on
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  #18  
Old 03-10-2005, 10:57 AM
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Not to mention your parking brake is on
Yeah, but it wasn't, of course. The car gets confused on the dyno, and all the lights come on (brake, abs, etc). Once back on 4 wheels, it was normal again.
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Old 03-11-2005, 10:13 AM
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I have a similar car with similar mods, for comparison my before/after results are here:

http://www.bimmerfest.com/forums/showthread.php?t=86402
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  #20  
Old 03-11-2005, 10:15 AM
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Quote:
Originally Posted by joema
I have a similar car with similar mods, for comparison my before/after results are here:

http://www.bimmerfest.com/forums/showthread.php?t=86402
Nice!
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  #21  
Old 03-11-2005, 10:25 AM
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Dude, your trunk's open.
It's to provide additional downforce at such high speeds, of course.
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