[OverDrive]

Originally Posted by shiv@vishnu

The difference is not 10mpg. All things equal, we've seen an improvement of 10% during conservative driving. And 15% during strict no-boost cruising on the highway.

There's a pretty big dip in the factory timing curve just above 8" of vacuum that no doubt a compromise to tailpipe emissions. With that fixed, and the engine being tuned the way it wants to be tuned, the engine just feels "right" and the fuel economy improvements show this.

The on-board computer reads as accurately as it does with the stock tune just as long as TPS is below 50% at which FP starts to rise. But even then, the FP doesn't rise much until engine speed is above 4500rpm.

Kelvin- Thanks for the unbiased review. And thanks for taking the time to document your findings in a way that shouldn't get anyone riled up. We should all be happy that there is more than 1 choice of tunes. If there wasn't, I can say for sure that our tune may not have been as developed as it is

Shiv

Shiv,

why didn't BMW do this in the first place with this engine since they are always trying to get the best of performance and economy?

edit: I saw your earlier posts about this.
I should really

[normtrum]

Originally Posted by 335iAW

DCI is probably worth 10rwhp with tunes that take advantage of it.

The only time a DCI would not be worth any power on the dyno is if you dyno with the stock airbox lid off.

Right....shiv has stated in the past that you really don't get much hp out of a dci unless you're running a tune with at least 350 whp. 10-15hp would probably be about right with a tuned 335, with ~5hp on a stock car.

I'm still on V2 with my last dyno coming in at 330 whp....so I'm pretty confident that I'm getting very little gain out of my dci.

Kelvin - thanks for taking the time to write up a great review!!

[Kelvin1000]

Originally Posted by 09AlpineTTSedan

6at or 6mt?

6MT

[Kelvin1000]

Originally Posted by Xander

Dual cone intakes are worth how much horsepower?

I am looking at doing some "real world" testing on a "closed section" of road over the next few days same cars, one with the Procede, One with the Juice box. In fact we might throw a car with the older V2 Procede in the mix too.

X...

I really fell like DCIs are a great bang for the buck and they make a real difference. Both of these tunes can detect boost and airflow demanded versus what is received and they adjust accordingly. Once you are north of 340 whp it does make a difference across the RPM range. The sound is addictive as well.

One of the primary reasons that I have to re-dyno and update the opening post with proper JB3 1.22 numbers (and torque readings which my new place takes the time to measure) is that I did not have DCIs installed the last time.

IMHO, I believe the differences is important enough to invest in a direct flow intake.

[jbttum3]

Originally Posted by scalbert

The design is to give, 2, maybe 3 MPG better.

I don't care what anyone says.....my gas mileage has been shit since I got the Procede but I don't care really. I just don't know how people are claiming increases......

[mwahlert]

Originally Posted by jbttum3

I don't care what anyone says.....my gas mileage has been shit since I got the Procede but I don't care really. I just don't know how people are claiming increases......

i dont imagine that is of much fault of the procede and more your right foot.

[Sniz]

Originally Posted by mwahlert

i dont imagine that is of much fault of the procede and more your right foot.

+10 million

a tuned 335 is harder to drive smooth and slow, at least to me. Its just too much fun hitting the boost and zoomin to your cruising speed time after time.

[Kelvin1000]

Opening post has been updated.

The JB3 strikes back!!!

Well guys I am back from the dyno and I retested the JB3 with maps 4 and 6 but this time in the same dyno where I tested the Procede and with the DCIs installed (just as they were when I tested the Procede). The results are pretty interesting...

This first graph is Procede Stage 1 versus JB3 1.22 on Map 4. You can clearly see that the JB3 is very powerful indeed. You get an additional 10whp down low, then a small 200 rpm blip in power around 4.5K rpms and then the tune comes alive again at 5K and stays stronger than the stage 1 near the redline.

You can see that the Procede is also smoother and more linear as you will notice that the lines wiggle less all throughout which is confirmed by what I noticed and wrote about in the initial review. Peak horsepower is the same but you get more with the JB3 throughout the powerband which makes a clear difference.



This second graph is Procede Stage 1 versus the JB3 1.22 on Map 6. I don't know if this is a fair comparison as map 6 might be more like Stage 2 but it shows more of the same but obviously with more power.

It cranks out about about 10whp more at peak power. More importantly, you see about 15whp more down low and then the blip for 200 rpms, then 10whp to 15whp more power throughout the top of the rpm range and finally a huge difference towards the redline.



The extra power down low and the big finish are really one of the reasons that people love this tune so much and why it does so well at the track. If Terry can iron out that little hickup at 4.5K rpms that seems to be present in BMW software 32.10 then I think the tune will be just about perfect. I know he already installed the software in his car and is working on an update for version 1.3x

The battle rages on and we, the customers, are the clear winners.

P.S.

Map 6 runs 1 and 2:



A little bonus graph of a Mustang Shelby that was there before me with only software and downpipes. Simply amazing:

[Mike@N54Tuning.com]

Originally Posted by Kelvin1000

Opening post has been updated.

The JB3 strikes back!!!

Very interesting results Kevin! I know Terry is working hard on 1.3 which will address the 32.1 blip, smooth things out, as well as dramatically improve low end response and torque! So hang in there JB3 owners the best is yet to come.

Mike

[Kelvin1000]

Originally Posted by Mike@N54Tuning.com

Very interesting results Kevin! I know Terry is working hard on 1.3 which will address the 32.1 blip, smooth things out, as well as dramatically improve low end response and torque! So hang in there JB3 owners the best is yet to come.

Mike

Mike,

Please make sure Terry gets these results, I would love to see further improvements for those with 32.10.

Thanks

[Sniz]

good results, shows what most see....JB3 will pull a bit harder in the top end while the procede is smoother throughout. I dont like how bumpy the JB3 is in these and most recent dyno's.....I've asked before and never reallly seen an answer. What was the boost on the jb3 vs procede throughout the run?

that shelby is putting down some smoooooth and good power. Too bad those cars are boats.

[Craig@SupremePower]

Nice results... i grabbed a JB3 for my 09' 335i thats on order so i'm looking fwd to getting it in there!!!

Originally Posted by Kelvin1000

Opening post has been updated.

The JB3 strikes back!!!

Well guys I am back from the dyno and I retested the JB3 with maps 4 and 6 but this time in the same dyno where I tested the Procede and with the DCIs installed (just as they were when I tested the Procede). The results are pretty interesting...

This first graph is Procede Stage 1 versus JB3 1.22 on Map 4. You can clearly see that the JB3 is very powerful indeed. You get an additional 10whp down low, then a small 200 rpm blip in power around 4.5K rpms and then the tune comes alive again at 5K and stays stronger than the stage 1 near the redline.

You can see that the Procede is also smoother and more linear as you will notice that the lines wiggle less all throughout which is confirmed by what I noticed and wrote about in the initial review. Peak horsepower is the same but you get more with the JB3 throughout the powerband which makes a clear difference.



This second graph is Procede Stage 1 versus the JB3 1.22 on Map 6. I don't know if this is a fair comparison as map 6 might be more like Stage 2 but it shows more of the same but obviously with more power.

It cranks out about about 10whp more at peak power. More importantly, you see about 15whp more down low and then the blip for 200 rpms, then 10whp to 15whp more power throughout the top of the rpm range and finally a huge difference towards the redline.



The extra power down low and the big finish are really one of the reasons that people love this tune so much and why it does so well at the track. If Terry can iron out that little hickup at 4.5K rpms that seems to be present in BMW software 32.10 then I think the tune will be just about perfect. I know he already installed the software in his car and is working on an update for version 1.3x

The battle rages on and we, the customers, are the clear winners.

P.S.

Map 6 runs 1 and 2:



A little bonus graph of a Mustang Shelby that was there before me with only software and downpipes. Simply amazing:

[AU335]

wow...that curve on the Rev II is no joke! very tempting

[OpenFlash]

Kelvin,
Nice findings Now try the Stg 2 map just for kicks. Should be worth 10-15whp more than Stg 1. It runs 14-15psi instead of 13-14psi.

Shiv

[Kelvin1000]

Originally Posted by shiv@vishnu

Kelvin,
Nice findings Now try the Stg 2 map just for kicks. Should be worth 10-15whp more than Stg 1. It runs 14-15psi instead of 13-14psi.

Shiv

My plan is to go get one of those 9 pin cables and give it a go for another dyno (possibly today) on stage 2 for a true comparison.

This will be the last dyno I will post for a while and these weekly runs are getting a little expensive.

More to come...

[Kelvin1000]

I got the cable from Radio Shack and will be reinstalling the Procede but will load Stage 2 and run with DCIs and 93 octane to see how it compares to JB3 1.22 map #6.

Will this map match the power of the JB3 but with more consistency to deliver the KO punch???

Stay tuned...

[GeorgiaTech335coupe]

If you can, log boost on both runs so that we know we are comparing apples to apples. Thanks.

[bmwzimmer]

Procede Curves vs. JB Curves.

I guess Both can do the job but.......

[Kelvin1000]

does anyone have details on the inherent differences between the various stages? Is it more peak PSI or is there more power all along the curve?

Also, any IAT decay differences or less boost taper?

[Vudoo4u2]

shiv, this has probably been asked a million times before, but would it be alright to run stage 2 on a car with strictly 93 oct and DCI? I thought that was only stg1?...or can we get away with it in cooler temps safely?

[Kelvin1000]

Originally Posted by Vudoo4u2

shiv, this has probably been asked a million times before, but would it be alright to run stage 2 on a car with strictly 93 oct and DCI? I thought that was only stg1?...or can we get away with it in cooler temps safely?

Not cooler Tempe for me but we do have 93 octane in South Florida...

[scalbert]

Originally Posted by Kelvin1000

does anyone have details on the inherent differences between the various stages? Is it more peak PSI or is there more power all along the curve?

Also, any IAT decay differences or less boost taper?

A little more boost throughout including at peak HP. And yes, there is less taper.