[PeterPure]

Originally Posted by Tony@vargasturbotech

That is completely incorrect. You should go back and check the old threads. Terry made 477WHP on 18 psi at redline over a year ago. The thread is on this forum and others. This is a great upgrade, but boost pressure is not what is holding the N55 back at the moment.

I think you are the one that is confused. Here is why:
Your turbo made 468whp after extensive testing and finetuning by Terry himself. Terry said the car is able to hold ±20 psi at midrange and 18 psi at 6k rpm. Here is the old thread with graphs to refresh your memory:
http://www.n54tech.com/forums/showthread.php?t=22618

Oh yes your turbo drops off steadily after 6k rpm with peak power at 5.5k rpm.

Then early january Terry retested your 4k $ turbo with upgraded wastegate in the following thread:
http://www.n54tech.com/forums/showthread.php?t=28341
Here you see it made 429whp at 20 psi and 487whp at 26 psi. Needless to say the 20psi map again starts to drop off power after 6k. The 26 psi map goes downhill after 5.3k rpm.

So those are the facts from extensive testing by an expert in the business on his own cars.

Now I have yet to see a customer car being pushed that hard or making close to those numbers. Why? Because there are none.

The initial pure stage2 results are from a customers testcar driving the car around for a single week dialing it in a bit. It has a build-up boost curve being able to run 20 psi to the real redline of 7k rpm. Also for some reason the car shifted on the dyno at 6.4k rpm not showing how the power/torque give will do > 6.5k rpm. However power keeps rising till the very end! So I have reason to believe the 6 - 7k rpm power numbers will easily pass 500whp pretty soon!

So IMO the initial results are very promising. We will see higher numbers in the coming 2 months for sure. Why?
- N20 tmap sensor on test cars will show how this will do at > 21.7 psi boost numbers.
- The manual transmission car will hopefully not have trans slip issues like the dct
- Additional fuelling solutions becoming available will show it's potential even more because currently this test car had a single CM12 nozzle (Terry's 135i was running a CM14). TB and Port injection will remove the fuelling issues we are having.
- The initial dyno shows power growing till the end of the run at 6.5k rpm, and the turbo's have more room to breat!

Honestly Tony, this turbo seems to be able to flow a lot more in the 6-7k rpm range than your 4k $ turbo ever has. Just face it. Your product is now obsolete!

Because:
- This turbo simply performs a lot better and flows till 7k rpm
- It's a lot cheaper than yours

[paul223]

Originally Posted by Tony@vargasturbotech

That is completely incorrect. You should go back and check the old threads. Terry made 477WHP on 18 psi at redline over a year ago. The thread is on this forum and others. This is a great upgrade, but boost pressure is not what is holding the N55 back at the moment.

I feel sorry for people who spent $4k on your turbo

[Jsoboti]

Can't we just all be friends

[Rob@RBTurbo]

"Vendor V" has been owned.

Congrats on the upgrade, Pure!

Rob

[iuhutch]

Actually that is a really informative post Dark! Thanks for collectin all that together

[PeterPure]

Originally Posted by iuhutch

Actually that is a really informative post Dark! Thanks for collectin all that together

You are most welcome

[tke344]

That car being a 2012, I take it there is no backend flash? I bet the DCT will be fine when a flash tune is eventually available. It may already be possible as the M3/M4 ECU has been cracked, I'm sure it'll trickle down. Same Tricore right?

I'm excited to see results from a 2011, flashed with the n20 map sensor running j4b and TB injection. Seems like a very cost effective way to make all but the craziest of us content.. 550-600whp?

[e46m3to335i]

Originally Posted by tke344

That car being a 2012, I take it there is no backend flash? I bet the DCT will be fine when a flash tune is eventually available. It may already be possible as the M3/M4 ECU has been cracked, I'm sure it'll trickle down. Same Tricore right?

I'm excited to see results from a 2011, flashed with the n20 map sensor running j4b and TB injection. Seems like a very cost effective way to make all but the craziest of us content.. 550-600whp?

That 2012 DOES have the back end flash.

[PURE135i]

I will turn it up soon guys and see what the limits of the DCT are with the BEF. As long as PI works out on pure turbos e90 I'll be making the switch soon . For now CM14-16 will be used

[JETmn]

Originally Posted by e46m3to335i

That 2012 DOES have the back end flash.

You are both right, half of them do. The later 2012's have one in the works, but is still not readily available yet. Very soon though, it is in testing/beta stage.

[iuhutch]

Originally Posted by JETmn

You are both right, half of them do. The later 2012's have one in the works, but is still not readily available yet. Very soon though, it is in testing/beta stage.

Good callout! But you also have to consider the bench flashing that's available and for 2012+ -2013 have Dinan options as well for flash and then can also stack w jb if more power is desired. Gintani also has a good bench flash price but BMS still in development for dct specific load targets.

I am going to try to test the Dinan flash stacked with jb this spring w pure 2 so more to come

[PeterPure]

Originally Posted by iuhutch

Good callout! But you also have to consider the bench flashing that's available and for 2012+ -2013 have Dinan options as well for flash and then can also stack w jb if more power is desired. Gintani also has a good bench flash price but BMS still in development for dct specific load targets.

I am going to try to test the Dinan flash stacked with jb this spring w pure 2 so more to come

I think - depending on what supplemental fuelling will allow, we need:
- fuel trim adjustment --> this will allow hpfp to flow more (can be adjusted partly by open loop setting
- afr not too rich but faster into the 12.x and up top not under 12.0 (too rich = missfires)
- 40-60% more load atleast for the dct guys. Not sure if AT will see issues. I guess i will find that out
- limit ign advance to avoid knock at high boost

I am not sure what other parameters are normally changed in a BEF but the above should be sufficient if running jb4 on top.

[iuhutch]

Now this is dedication! In my cave ...Lol PURE FTW

[Pure Turbos]

Originally Posted by iuhutch

Now this is dedication! In my cave ...Lol PURE FTW

no tattoo?

[iuhutch]

Originally Posted by Pure Turbos

no tattoo?

Lol no. Throw in the stg2 and Id do ur logo lol

[Pure Turbos]

Originally Posted by iuhutch

Lol no. Throw in the stg2 and Id do ur logo lol

hmm, that might be a go...

[paul223]

Originally Posted by Pure Turbos

no tattoo?

Stage 2 for a logo tattoo? It is tempting, but hard to explain during intercourse!

[deemarr 335i]

Hey pure do you sell a install kit(gaskets,etc...) just wanna get everything ready when I order the stage 2.

[Ridgefield335]

Originally Posted by deemarr 335i

Hey pure do you sell a install kit(gaskets,etc...) just wanna get everything ready when I order the stage 2.

Yes they do. I ordered one with my Stage 2

[deemarr 335i]

Originally Posted by Ridgefield335

Yes they do. I ordered one with my Stage 2

OK cool thanks bro

[scotty_miller]

Vargas go home you're drunk. Congrats pure. Definitely be making this investment in the near future, awesome what you guys are doing

[tke344]

Originally Posted by Darkhold

I think - depending on what supplemental fuelling will allow, we need:
- fuel trim adjustment --> this will allow hpfp to flow more (can be adjusted partly by open loop setting
- afr not too rich but faster into the 12.x and up top not under 12.0 (too rich = missfires)
- 40-60% more load atleast for the dct guys. Not sure if AT will see issues. I guess i will find that out
- limit ign advance to avoid knock at high boost

I am not sure what other parameters are normally changed in a BEF but the above should be sufficient if running jb4 on top.

My thoughts exactly.. IMO the car should mostly be tuned via the flash and the jb4 should be handling the n20 tmap sensor, meth / secondary fuel injection. Editing the fuel scalar. AFR targets, scalar and timing are easy with the Cobb ATR software, all very straightforward. Its load and hitting specific, consistent boost levels that can be difficult