[Mr. 5]

Hey guys,
It's been a while since I've done any dynos because there hasn't been anything worth testing out. I was waiting forever for the V2, but canceled my order to spend the money elsewhere. I would have taken a couple runs with the V2, but you can't test something that you don't have.

Anyway, Terry contacted me to see if I was willing to try out the JB2H, and I was thinking...Sure! I'm all in to trying different things out, and I'm very open minded when it comes to different products. I try not to get caught up in any of the politics, and do my best to keep an objective point of view during all of my tests.

From what I understand, the JB2H raises the boost a bit to compensate for the Downpipes. The DPs make the engine run a bit richer so the extra boost helps keep the AtoFs in check.

Again:
All runs were performed on 91 Octane.
All runs were performed on the same Dyno as in the past.
All runs were performed with the same car.
All runs use the STD correction factor, which means the Temp, and humidity have nothing to do with the figures being higher or lower. If I used the uncorrected factor then you would see different results.

I was very surprised at how well the JB2H did.
For aproximately $350, you get a lot of bang for your buck.
I'll let the graphs speak for themselves.

The first graph was with the Procede and DPs.
The second was with the Custom Xede and DPs. (The custom Xede had the best results in terms of power, but I thought that the drivability of the program was poor. This is why I chose against it.)
The third is the JB2H, which was done today. (I had a problem getting the tubing of the diverter valve and broke the nipple off of the DV.)
I JB welded it together but it broke after the second run. You can see the boost drop in run 32. It also makes me wonder i fthere was any leakage with the other runs as well, but from what I saw after the first 2 runs it looked like it was holding up.
The fourth is the Best run of the regular JB2 and the JB2H.
The fifth is the best run of the Procede, Custom Xede, and the JB2H.

After being a Procede guy for so long, I am seriously debating whether or not to go with the JB2H. The drivability of this is just awesome. It drives exactly like stock and is very smooth. It's really hard to believe that it is making that much power with those AtoFs and such low boost when comparing to the other programs. I just can't get over the fact that it peaked more HP with only 10 psi of boost.

[B00sted335BMW]

Nice job man, you have been going a long way and spending alot of money, I'll be the first to say that we all appreciate the hard work, keep it up buddy

[stressdoc]

Now if we can just get you to try the Dinan flash....


Thanks for the tests. Nice work!

[RedGT3]

Great job like always Mr 5. Thanks

[A418t81]

So from the JB2 to the JB2H, you went from 308 whp to 334 whp? Is that what this is showing?

[OpenFlash]

Ae we comparing results that were done back in Sept to runs done today? By no means am I discounting the effort you put into the test by any means... it is considerable. But you're comparing results taken from a 90 degree day to results taken today when temps are probably in the 60s. If you re-dyno'd the PROcede and Xede set-up today, you'd notice that the cooler temps would have induced a substantial boost reduction.

If you're interested in doing a same day, same dyno, same gas, etc, test, let me know and I can figure out a way to make it happen. I just have to make maps for a catless downpipe'd car first. We should have our catless dps from Riss this upcoming week. But even still, the basic v1.47 map should do in a pinch.

Shiv

[Mr. 5]

I already talked about this in my first post.
I'm using the STD correction factors.
If you would like to see an uncorrected graph then here you go.
This graph will show you the difference the temperature made, but there should be no problems comparing the graph in the first post.

Originally Posted by shiv@vishnu

Ae we comparing results that were done back in Sept to runs done today? By no means am I discounting the effort you put into the test by any means... it is considerable. But you're comparing results taken from a 90 degree day to results taken today when temps are probably in the 60s. If you re-dyno'd the PROcede and Xede set-up today, you'd notice that the cooler temps would have induced a substantial boost reduction.

If you're interested in doing a same day, same dyno, same gas, etc, test, let me know and I can figure out a way to make it happen. I just have to make maps for a catless downpipe'd car first. We should have our catless dps from Riss this upcoming week. But even still, the basic v1.47 map should do in a pinch.

Shiv

[OpenFlash]

Originally Posted by Mr. 5

I already talked about this in my first post.
I'm using the STD correction factors.
If you would like to see an uncorrected graph then here you go.
This graph will show you the difference the temperature made, but there should be no problems comparing the graph in the first post.

Mr 5,
Please don't take this the wrong way. But your uncorrected results just proved how well the car really responds to the much cooler weather. Both in knock resistance and absolute power output. All those Dynojet correction (STD, SAE, JIS, etc,) do not work for any modern turbo engine as they do not take into account that these cars will run more ignition advance in cool weather that they do in hot weather. That alone is the biggest contributor to power variance. All the "corrections" attempt to do is account for air density changes which is just fine, but only if you are testing a naturally aspirated car and only if ignition timing is kept constant.

If you are interested in testing the other products on the same day, on the same tank of gas, let me know and I can help make that happen. Even down there, on that same dyno. I loved all your other tests because you compared all the systems on the same day. This one compares tunes that are 3 months and ~30F apart. Not to mention differences in gas formulation, baro, humidity, etc, but that's secondary.

Still, you're doing more than most other people so you still get a And because of that, my offer still stands.

Shiv

[E90ice]

So the first graph shows PROcede and DP's? And you only got 325whp? Strange!

[e90AW335i]

Good stuff Mr. 5....

[sambonator]

Mr.5, how much did the dyno cost? My dyno today was $50... "DynoDay" special at Advanced Motor Sports (AMS) in Irvine. They said regular pricing is $60. I think I was the only 335 there (and the only BMW I think)... all others were Lotus Elises, 350Zs, S2000's and other modded Toyota's. Anyway bunch of the spectators there were impressed with my 341rwhp/363rwtq.

[hotrod182]

Originally Posted by sambonator

Mr.5, how much did the dyno cost? My dyno today was $50... "DynoDay" special at Advanced Motor Sports (AMS) in Irvine. They said regular pricing is $60. I think I was the only 335 there (and the only BMW I think)... all others were Lotus Elises, 350Zs, S2000's and other modded Toyota's. Anyway bunch of the spectators there were impressed with my 341rwhp/363rwtq.

How did the Lotus, 350z, S2000s do on their dyno numbers?

[stillclaimndp]

hey in the latest graph, which is which tune (the uncorrected one)? Is it jsb2h red, procede green, and custom xede blue? thanks!

[veightkiller]

great job man! making me think twice now.

[Insider]

Did the JBS2H have DP's?

[Terry335]

Hi Craig, numbers look great! The JB2H should make ~11.5psi assuming it was 60-70 degrees out today. I wonder if the broken diverter valve was leaking a bit? Either way nothing wrong with 330rw on 91 octane. And the most important thing, more important than every last 10rwhp, is that you enjoy the way the car drives with the tune. Thanks again for doing this test!

[Terry335]

Originally Posted by sambonator

Mr.5, how much did the dyno cost? My dyno today was $50... "DynoDay" special at Advanced Motor Sports (AMS) in Irvine. They said regular pricing is $60. I think I was the only 335 there (and the only BMW I think)... all others were Lotus Elises, 350Zs, S2000's and other modded Toyota's. Anyway bunch of the spectators there were impressed with my 341rwhp/363rwtq.

Hi Sam, 341rw is pretty stout on the stock downpipes/exhaust. Right in line with the published dyno on the website! Lets see that chart.

[Terry335]

Originally Posted by A418t81

So from the JB2 to the JB2H, you went from 308 whp to 334 whp? Is that what this is showing?

I always thought his first test was ~8-10rwhp low. On average the JB2 dynos 315rw on 91 octane everything else stock. I'd be willing to gamble the JB2 would dyno around 320 if he retested, making the H pill worth around 15rw in this case. Although he seems to be ~1psi down on boost (maybe another 15rw there?)

[M&M]

Mr 5, great comparo. Good work there.

But Shiv is right about the temps. I have also experience that with previous cars. The correction factor on the dyno may well compensate for the ambient conditions based on certain formulae. But a car is just so much happier in colder weather.

I rather dyno in colder weather with less correction, that in hotter weather with more correction. The curve is so much smoother in the cold, and the power peak, power pasdt peak etc are just better. Like Shiv says it will run more timing when its cold which no correction factor can account for.

[A418t81]

Originally Posted by Terry335

I always thought his first test was ~8-10rwhp low. On average the JB2 dynos 315rw on 91 octane everything else stock. I'd be willing to gamble the JB2 would dyno around 320 if he retested, making the H pill worth around 15rw in this case. Although he seems to be ~1psi down on boost (maybe another 15rw there?)

Yeah, I dyno'ed 313 whp on 93 but my DJ reads a bit lower than the "average" one. Something was obviously different considering that there's no way even 1 psi would be good for nearly 30 whp.

[Terry335]

Originally Posted by A418t81

Yeah, I dyno'ed 313 whp on 93 but my DJ reads a bit lower than the "average" one. Something was obviously different considering that there's no way even 1 psi would be good for nearly 30 whp.

Yeah, it's possible he was heat-soaked before and picked up a little timing retard. Or perhaps wasn't hitting the boost target for some reason. He was one of the first JB2 beta testers.

At the end of the day like Jon (my business partner) said on another forum, we're not looking to to be the fastest kids on the block. Just to provide a quality product with quality customer service. So when our tune puts down good dyno numbers, or good track numbers, or when customers are thrilled with the smooth performance, it's just icing on the cake for us.

[M&M]

Here's an example of dynoing in the hot vs cold. This is my wifes chipped Golf V Gti (2.0T Fsi). There were no changes in the car. Same mods, same fuel, just different days. The ambient correction was 4% higher on the hotter day (test 6).

So although the dyno was adding more correction to compensate, the car made a lot less power. I can't remember the temps, but it was pretty hot on that day. As you can see by the curve, it's a bit wavy compared to the dyno on the cooler day. The ECU just wasn't happy. It was pulling timing and boost. I think part of the problem was I had normal 91 fuel and in that heat I should have had better fuel. But nevertheless the fuel was the same for both runs.

So yeah ambient correction can help to even out the playing fields, but remember a turbo car is a lot happier when its cold out.