I was able to get a few runs in before the local dyno shop closing time. The numbers here were not as consistent than my previous runs on the Mustang Dyno. However, as expected, i averaged 5% higher than my 295rwhp on the Mustang.
Here are my Results:
1st Run:
3rd Gear Pull 311 rwhp

2nd Run:
3rd Gear Pull 314 rwhp

3rd Run:
4th Gear Pull 315 rwhp

-------Cool Down---------

4th Run:
3rd Gear Pull 305 rwhp :eek:

5th Run:
4th Gear Pull 320.1 rwhp :buttrock (see sig for pic)

Wow! Those are great numbers, keep it going up :D

Quick question, is there anything you don't like about the flywheel combo? I'ver never heard anything about them except for being noisey.

The UUC is really NOT that noisy. My friends cant even make out the noise it makes.. You will only be able to tell that i have the uuc flywheel if you yourself own one and are able to make it out..
My hat goes off to UUC for a great product :)

That's crazy. 320RWHP. N/A! Wow, definatly another record breaker. Don't let any haters tell you otherwise. It shows how OBDII adapts every driving cycle in Run 4 and Run 5. Awesome runs...can't wait till I go down from school and see it tear someone up!

Hey,

We had this debate with some guy on e46fanatics claiming 307rwhp on a stock M3. If you don't dyno it in 5th gear you aren't getting the 1 to 1 ratio therefore your dyno results will be greater.


BTW JaWeb, are those CF eyebrows on your car or painted black...where did ya get em?

What? all E46 M3's are dyno'd on 3rd or 4th gear. That way we have a 1:1 ratio with each other about how much power we have. 5th gear is too long(155mph) and their will be very little torque. Much more accurate at 3 or 4th gear. Did it ever occur to the people of e46fanatics that the guy was not stock.

Damn you , I see I now have competition for the s54 HP race... Well congrats my man, you done good. You know I'll be at the dyno soon. Though with the stock software's speed limiter I can't break 7100 RPM. Seriously my man those are some great numbers.

As far as dynoing in 5th, please explain how the gearing will effect HP, it can effect rear wheel torque but it can't create HP. Plus you do realize if you dyno with a 1:1 tranny ratio you'll still need to account for the 3.46(?):1 rear end ratio..

Damn you , I see I now have competition for the s54 HP race... Well congrats my man, you done good. You know I'll be at the dyno soon. Though with the stock software's speed limiter I can't break 7100 RPM. Seriously my man those are some great numbers.

As far as dynoing in 5th, please explain how the gearing will effect HP, it can effect rear wheel torque but it can't create HP. Plus you do realize if you dyno with a 1:1 tranny ratio you'll still need to account for the 3.46(?):1 rear end ratio..

No competition here.. Just a community that helps eachother..
Only way to win is for all to gain :)
AA can fix that dyno speed limiter for ya

the car was stock with all the witnesses there at the time of runs. well thats another issue anyways


I thought that with the M3 in 4th gear the power is actually multiplying and that will show more hp gain unless the dyno is correcting for that issue. I have seen a dyno or two of guys with just about every mod and still not pushing that much hp.

No competition here.. Just a community that helps eachother..

That's the one great thing about this forum and the Internet as a whole, just a bunch of enthusiast helping each other. That’s why I post all my mods as I do them, hopefully they’ll help someone someday…

the car was stock with all the witnesses there at the time of runs. well thats another issue anyways


I thought that with the M3 in 4th gear the power is actually multiplying and that will show more hp gain unless the dyno is correcting for that issue. I have seen a dyno or two of guys with just about every mod and still not pushing that much hp.

Basically the torque is multiplied, you can't do anything about it unless you have the output shaft going 1:1 with the flywheel. But the HP is uneffected, more torque at the cost of revolutions, and as you know T*R/5252=HP. So it won't make more HP just more torque, which is corrected by the dyno based on the TACH input it recieves. I hope that blabbering makes some sense :D

Just for the record... when I dynoed in 4th gear on the dynojet, I got higher numbers as well. However, when I dynoed in 4th gear on a mustang dyno... I got lower numbers. With the mustang dyno, the simulated road conditions don't help much... plus a 4th gear pull generates a whole lot of heat and by 7000rpm, the engine is generating so much heat the car is losing power.

Kevlar: So, on the mustang you lost power due to the heat of the engine on 4th gear? What was your real hp numbers vs dyno'ing in 4th on the dynojet

Just for the record... when I dynoed in 4th gear on the dynojet, I got higher numbers as well. However, when I dynoed in 4th gear on a mustang dyno... I got lower numbers. With the mustang dyno, the simulated road conditions don't help much... plus a 4th gear pull generates a whole lot of heat and by 7000rpm, the engine is generating so much heat the car is losing power.


Was the dyno in 4th vs 3rd done on the same day, what was the order of testing?

Kevlar: So, on the mustang you lost power due to the heat of the engine on 4th gear? What was your real hp numbers vs dyno'ing in 4th on the dynojet
Dynojet: 3rd gear was 281, 4th gear was 287 (same day)

Mustang: 3rd gear was 278, 4th gear was 274 (same day)

The biggest issue was in 3rd gear on the Mustang dyno, the power curve continued straight to redline, in 4th gear, the curve started to die off after 7000. The heat generated is pretty intense.

Remember the mustang dyno simulates road condition so it isn't a free spinning drum like on the dynojet.


Was the dyno in 4th vs 3rd done on the same day, what was the order of testing?


3rd gear, 3rd gear, 3rd gear, 4th gear, 3rd gear

Awesome numbers JM! Wish I could tear it up like you...still climbing up there though...hehehe :buttrock

Dynojet: 3rd gear was 281, 4th gear was 287 (same day)

Mustang: 3rd gear was 278, 4th gear was 274 (same day)

The biggest issue was in 3rd gear on the Mustang dyno, the power curve continued straight to redline, in 4th gear, the curve started to die off after 7000. The heat generated is pretty intense.

Remember the mustang dyno simulates road condition so it isn't a free spinning drum like on the dynojet.

3rd gear, 3rd gear, 3rd gear, 4th gear, 3rd gear

Ok I think I misrepresented my first statement… Here is what I meant that the gearing doesn’t make MORE power. What it actually does is affect the drive train lose factor. The higher the gear(numerically lower ratio) the more drag and frictional lose is created on the output side.

i dyno'd @ 307.5 max hp and 257 tq....all i have is the DINAN Stage 1 upgrade....

i dyno'd @ 307.5 max hp and 257 tq....all i have is the DINAN Stage 1 upgrade....
Nice. What upgrades does Dinan Stg I come with and what did you dyno stock? Dyno Jet or Mustang Dyno?

Yep. In 4th gear. Try it in 5th next time and watch your numbers plummet back down to earth.:D

i dyno'd @ 307.5 max hp and 257 tq....all i have is the DINAN Stage 1 upgrade....

I was able to get a few runs in before the local dyno shop closing time. The numbers here were not as consistent than my previous runs on the Mustang Dyno. However, as expected, i averaged 5% higher than my 295rwhp on the Mustang.
Here are my Results:
1st Run:
3rd Gear Pull 311 rwhp

2nd Run:
3rd Gear Pull 314 rwhp

3rd Run:
4th Gear Pull 315 rwhp

-------Cool Down---------

4th Run:
3rd Gear Pull 305 rwhp :eek:

5th Run:
4th Gear Pull 320.1 rwhp :buttrock (see sig for pic)

WoW what mods do you have?!

Yes, unfortunately the M3 needs to be dynoed in 5th or the numbers are skewed.

I'm sure you'll pull great numbers in that beautiful car of yours in 5th as well JM, but I don't believe you'll see 320 or even 315. You might want to try it in 5th next time you go because right now your 4th gear run is saying you have 390 crank HP (with 18% drivetrain loss). Judging from your mod list, I believe 370 is more accurate.

Please correct me if I'm wrong, but I believe he has:

Euro headers/exhaust
SS X pipe
Coils
Iridium plugs
UDP's
AA software
AA Muffler



WoW what mods do you have?!

I was able to get a few runs in before the local dyno shop closing time. The numbers here were not as consistent than my previous runs on the Mustang Dyno. However, as expected, i averaged 5% higher than my 295rwhp on the Mustang.
Here are my Results:
1st Run:
3rd Gear Pull 311 rwhp

2nd Run:
3rd Gear Pull 314 rwhp

3rd Run:
4th Gear Pull 315 rwhp

-------Cool Down---------

4th Run:
3rd Gear Pull 305 rwhp :eek:

5th Run:
4th Gear Pull 320.1 rwhp :buttrock (see sig for pic)
WOW :eek: !! Incredible numbers, man! I'm sorry if you posted it before, but what mods are you currently running?

-j

Yes, unfortunately the M3 needs to be dynoed in 5th or the numbers are skewed.

I'm sure you'll pull great numbers in that beautiful car of yours in 5th as well JM, but I don't believe you'll see 320 or even 315. You might want to try it in 5th next time you go because right now your 4th gear run is saying you have 390 crank HP (with 18% drivetrain loss). Judging from your mod list, I believe 370 is more accurate.
I am not familiar with gear ratios and how they would affect rwhp but i do know, from experience, that each gear produces different power.
However, i am more interested in testing my car along the same standard as every other tested e46 m3.
All of the M3s tested at AA and 90% of the dynos from this board have been on 3rd or 4th gear.
Im not to crazy about doing a 5th gear run. Alot of heat will be produced, let alone a top speed of 165mph.

I see your point. Actually yours is the first M3 I've heard of testing in 4th gear. I'm only aware of them being tested in 5th since it's a true 1 to 1. It may vary from forum to forum since people try and keep things as equal as possible when making comparisons, as you said. I'll try mine in 4th gear next time and let you know the results. I have a feeling we'll be within a couple of HP of each other. Take care:)


I am not familiar with gear ratios and how they would affect rwhp but i do know, from experience, that each gear produces different power.
However, i am more interested in testing my car along the same standard as every other tested e46 m3.
All of the M3s tested at AA and 90% of the dynos from this board have been on 3rd or 4th gear.
Im not to crazy about doing a 5th gear run. Alot of heat will be produced, let alone a top speed of 165mph.

I see your point. Actually yours is the first M3 I've heard of testing in 4th gear. I'm only aware of them being tested in 5th since it's a true 1 to 1. It may vary from forum to forum since people try and keep things as equal as possible when making comparisons, as you said. I'll try mine in 4th gear next time and let you know the results. I have a feeling we'll be within a couple of HP of each other. Take care:)


Exactly the point I was trying to get across. Thanks :buttrock

I've never heard of a M3 dynoed in 5th gear ... the car would be heatsoaked by the time it reached redline in 5th.

I've never heard of a M3 dynoed in 5th gear ... the car would be heatsoaked by the time it reached redline in 5th.


Nicely said. What boards are you guys on? Over here the majority of the dyno runs are on 3rd or 4th gear.

Awesome numbers.

Did you ever dyno your car stock without any mods on either dyno?

One thing I've learned you can never know truely what you're making unless you do a before and after on the SAME dyno. Every dyno is different, even if they're the same brand, you will get certain numbers on one and more/less on other. And some dynos are just way off, some of the guys on the E36s forum always post dynos of their car, stock making 220+ which is no way close, stock E36 is 200-210MAX.

look at luxautodetail results, no way he is REALLY making that much, its just the dyno thats off.

just my .02

Awesome numbers.

Did you ever dyno your car stock without any mods on either dyno?

One thing I've learned you can never know truely what you're making unless you do a before and after on the SAME dyno. Every dyno is different, even if they're the same brand, you will get certain numbers on one and more/less on other. And some dynos are just way off, some of the guys on the E36s forum always post dynos of their car, stock making 220+ which is no way close, stock E36 is 200-210MAX.

look at luxautodetail results, no way he is REALLY making that much, its just the dyno thats off.

just my .02
Yes, about 6 months ago i dynoed, STOCK, on the same dyno. I cant remember the exact numbers but they were somewhere along the lines of:
3rd gear pulls: average 280 rwhp
Best 4th gear pull: 283.9 rwhp

Latest Pulls (best):
3rd gear: 314rwhp
4th gear: 320 rwhp

So i gained 34rwhp peak in 3rd and 36rwhp in 4th. Pretty consistent.

Yes, about 6 months ago i dynoed, STOCK, on the same dyno. I cant remember the exact numbers but they were somewhere along the lines of:
3rd gear pulls: average 280 rwhp
Best 4th gear pull: 283.9 rwhp

Latest Pulls (best):
3rd gear: 314rwhp
4th gear: 320 rwhp

So i gained 34rwhp peak in 3rd and 36rwhp in 4th. Pretty consistent.


Thats awesome! what are your mods again?

I was able to get a few runs in before the local dyno shop closing time. The numbers here were not as consistent than my previous runs on the Mustang Dyno. However, as expected, i averaged 5% higher than my 295rwhp on the Mustang.
Here are my Results:
1st Run:
3rd Gear Pull 311 rwhp

2nd Run:
3rd Gear Pull 314 rwhp

3rd Run:
4th Gear Pull 315 rwhp

-------Cool Down---------

4th Run:
3rd Gear Pull 305 rwhp :eek:

5th Run:
4th Gear Pull 320.1 rwhp :buttrock (see sig for pic)

Looks cools, but the picture cuts off the corrections. Was this SAE or what?

Looks cools, but the picture cuts off the corrections. Was this SAE or what?

I dont know what corrections?? There is nothing else to the right of the paper
and i dont know what SAE is :(

--------Off Topic---------------
How do you like that intake of yours? Any gains from it?

Most dyno runs that I have seen are done in 4th gear. I'm with Kevlar in that 5th gear would produce reduced distorted HP numbers due heat soak. There is also the issue of hitting the speed governor.

We should also remember that any car on a dyno is not physically moving so the engine is not benefitting from cold air being forced into the engine bay. Shouldn't this be considered?

Also...JMWeb...I noticed your 1/4 mile time. You say you ran a 13.5 at 108.7 mph. 60 feet 2.24 I believe. 3,200 pound car. If we compare you numbers to Mathew's (Lee) infamous 12.63 run where his trap speed was 106.7 mph I believe with a 1.75 60 foot time and he claims his car was basically bone stock...the HP numbers don't necessarily jive.

I hope SilverStreak sees this and perhaps he can provide more insight. Please keep in mind that if you did not get good traction on your run...your ET goes up and also your mph's tend to go up. I'm sure many already know this. However...many on the board have stated that many stock M3's trap speed is around 106mph. If this is the case...it sure appears to me that your engine is for sure producing more power. How much more? Perhaps SilverStreak or others can help out here.

What would really help is that if you went to the drag strip when you were stock. Hopefully you did and you can post your best times and trap speed. If were trapping at 105 mph stock at let's say 13.8 with similar 60 feet times...then would this confirm the dyno's 36rwhp increase?

I would think by now somebody would have done this type of thorough comparsion but I don't believe I have seen it to date.

Thanks for sharing your numbers. It's very informative.

I've done so many dyno pulls now on both Mustang and Dynojets... What I've learned:

#1 use the same dyno
#2 make sure the guys running the dyno don't alter your template information
#3 it is easy to show pulls from 250 up to 350 rwhp on an E46 M3 from simple mistakes made by the operator
#4 on the same day, same dyno, same M3, I saw huge variances in E46 M3 pulls (again it was attributed to mistakes)

You can do things like simulate inertia, change weight, not get the M3 into the proper mode, etc to impact things.

So, anything outside of 265-290 rwhp on a stock M3 I would question as dyno/operator error -- and again simply because I've experienced this multiple times first hand.

Most dyno runs that I have seen are done in 4th gear. I'm with Kevlar in that 5th gear would produce reduced distorted HP numbers due heat soak. There is also the issue of hitting the speed governor.

We should also remember that any car on a dyno is not physically moving so the engine is not benefitting from cold air being forced into the engine bay. Shouldn't this be considered?

Also...JMWeb...I noticed your 1/4 mile time. You say you ran a 13.5 at 108.7 mph. 60 feet 2.24 I believe. 3,200 pound car. If we compare you numbers to Mathew's (Lee) infamous 12.63 run where his trap speed was 106.7 mph I believe with a 1.75 60 foot time and he claims his car was basically bone stock...the HP numbers don't necessarily jive.

I hope SilverStreak sees this and perhaps he can provide more insight. Please keep in mind that if you did not get good traction on your run...your ET goes up and also your mph's tend to go up. I'm sure many already know this. However...many on the board have stated that many stock M3's trap speed is around 106mph. If this is the case...it sure appears to me that your engine is for sure producing more power. How much more? Perhaps SilverStreak or others can help out here.

What would really help is that if you went to the drag strip when you were stock. Hopefully you did and you can post your best times and trap speed. If were trapping at 105 mph stock at let's say 13.8 with similar 60 feet times...then would this confirm the dyno's 36rwhp increase?

I would think by now somebody would have done this type of thorough comparsion but I don't believe I have seen it to date.

Thanks for sharing your numbers. It's very informative.

Fortunately, im a researcher by nature and have everything on record.
I have never dipped below 13.5s. My stock runs were 13.5 @ 104.xxmph (and once 103mph) with lower 60ft times.
As my car became more modded, my ET remained the same but both my 60ft time and mph increased.
Also, people have to keep in mind that a 2mph difference is huge. That may very well correspond to at least 15rwhp. Also, a 106.7 mph trap speed is excessively high. My car never trapped over 104mph and only one of my friends traped at 105 mph, stock.
The only way the ambiquity can be clarified is if i go to the strip and pull out a nice 60 footer.

Fortunately, im a researcher by nature and have everything on record.
I have never dipped below 13.5s. My stock runs were 13.5 @ 104.xxmph (and once 103mph) with lower 60ft times.
As my car became more modded, my ET remained the same but both my 60ft time and mph increased.
Also, people have to keep in mind that a 2mph difference is huge. That may very well correspond to at least 15rwhp. Also, a 106.7 mph trap speed is excessively high. My car never trapped over 104mph and only one of my friends traped at 105 mph, stock.
The only way the ambiquity can be clarified is if i go to the strip and pull out a nice 60 footer.

Once again....great info JMWeb. Seems to solidify your dyno numbers more. 4+mph increase in trap speed is quite significant. Thanks for sharing.