[FrankiE90]

I've been running the LET Flash for bout a year now.
When this flash first came out, it was exciting to see some
performance development for our NA's. This was before PBX's piggyback or
the Gintani Tune.

In this dyno comparison, it is a dyno done awhile ago on a dynojet, 3
pulls before and after the flash.
LINK TO OG Dyno:
http://www.e90post.com/forums/showth...frankie90+dyno

I pulled up the best of 3 runs, before and after, and found some
interesting numbers. Wanted to share to the community.





---------------
edit:
on torque (ft-lbs):

-----------------BEFORE---------AFTER---------DIFFERENCE / Gains
@ 3.89 RPM-----173.2----------197.9------------24.7 (ft-lbs)


on power (HP):

@ 4----RPM-----131.9---------151.7-------------19.8 (hp)
@ 5.4--RPM-----180.2---------200.1-------------19.9 (hp)
@ 6.78 RPM-----195.3---------219.4-------------24.1 (hp)


--------------------

The process of getting this flash at the time was a 2 step.
1. VIN read
once the VIN was wrap'd to the tune then.
2. the flash via OBDII port (30min-1hour)
Harold@HPAutowerks handled the flash.

one of the biggest concerns of this flash was, would it stick.
the adaptive features of the bimmer was feared that it would erase the
flash. I have yet to re-dyno, but my butt dyno says i still have the
flash. Before I upgrade I'll re-dyno just to close out this mod journey
of the LET Flash.


BTW,
It's great to see companies paying attention
to the NA's and produce performance mods for us.
At some point u ask yourself how much do I spend before going
over board with money until upgrading to the 335?
As value for 06-08 NA go down, and warranty's are expired,
owners will turn more to performance mods. It makes sense to maximize
your hp if you choose not to upgrade.

I hope that many of you NA owners, that do venture into the
performance mod let it be known on the boards so that
companies can start to see a market to produce more peformance mods
for our NA.

As you can see, the LET does not have the EZ Flash as what the
Gintani tune is advertising. Personally I see that as an advancement.
It's exciting to see competition and growth.

REF:
Here's a link to Harolds page for LET Flash
http://www.hpashop.com/product.sc?pr...categoryId=115

Gintani
http://www.m3post.com/forums/showthread.php?t=385947
http://www.e90post.com/forums/showthread.php?t=384262

PBX
http://www.e90post.com/forums/showthread.php?t=367220

[Gavin@MMW]

Hey frankie,
your local right?

id love to see what you push out on our dyno since you have the LET - but to be accurate it would need to be on the same dyno - let me know what you think?

[FrankiE90]

Originally Posted by Craven 328

Hey frankie,
your local right?

id love to see what you push out on our dyno since you have the LET - but to be accurate it would need to be on the same dyno - let me know what you think?

why yes, I am local.

is this Gintani's in house dyno?
I'm prob'ly head back to Mark at MD first to be consistent.
Lot of guys on the forum have gone to him for dynos in the past and
have good results.

once i do that, i'll head your way.
I like the idea of the EZ tune box, being able to switch out maps.
how's that coming along? is R&D done with that?



MD AUTO
link:
http://www.markdibella.com/
---------------------




for you fellas and ladies.
here are the plots calculated with RPM standings.

note: on the photoshop i did my best to
place the points as close as eye possible on the graph.
the numbers though are accurate to RPM standings to HP and Torque.



on torque (ft-lbs):

-----------------BEFORE---------AFTER---------DIFFERENCE / Gains
@ 3.89 RPM-----173.2----------197.9------------24.7 (ft-lbs)


on power (HP):

@ 4----RPM-----131.9---------151.7-------------19.8 (hp)
@ 5.4--RPM-----180.2---------200.1-------------19.9 (hp)
@ 6.78 RPM-----195.3---------219.4-------------24.1 (hp)


i guess what's in the middle is important with our tunes.
so little that is squeezed out of the NA's for max output.
a little here and there adds up in the end i guess.

[lux.sh]

holy..............sh*t. That is a big ass power gain. subscribed.

is this tune offered to general public at all? It seems like this must be done in house.

[FrankiE90]

Originally Posted by lux.sh

holy..............sh*t. That is a big ass power gain. subscribed.

is this tune offered to general public at all? It seems like this must be done in house.

lol.
no need to subscribe.
info's out there, UDUB help push this flash when it started.

end of day the LET advertised "Up to 12hp and 6 ft/lb gain"
my dyno confirms LET statement - I just never paid attention to what was in
the middle.

you can get the flash.
there are LET distributors all across the US.
for cali, it is Harold@HPAutowerks

the biggest thing, for me, about flashing is the preparation.
it's a VIN read.
file sent to be wrap'd with the VIN and FLASH.
file to a tool to be flashed via OBDII port.
check to make sure the flash is in.

sounds simple but many factors can delay the process.
ask HASRICE.

if you don't have the tool to load the flash, it can be a bitch
and a hassel. LET offered to send out their tool with a deposit making
sure they got their loader back. For savvy bimmer enthusiast I can see
it work'n well. For the average novice, I'd think twice. That's why the
PBX is awesome, it's a piggyback.

I'm a firm believer in a local distributor handle'n the flash
For all of Socal, Cravens up the street. That's piece of mind if
u have a problem u can drive there. Hopefully this EZ tune can make
it convenient for people that don't have distributors by their neighborhood.

There are options for our NA's!
just shop around for what's best to your needs.

Here's LET webpage.
http://www.letmotorsports.com/Tuning.asp

[Gavin@MMW]

this is a dynojet Lux, they read notoriously high, our dyno dynamics reads the LOWEST out of the dynos (dynojet, dynomax,mustang,dynodynamics)

so if we can get frankie in, with both of us running close to the same mods on the same dyno, im sure our valvetronic tune will outperform this flash aswell.

I will post my highest run tomorrow, since were doing max not average here

[lux.sh]

Originally Posted by Craven 328

this is a dynojet Lux, they read notoriously high, our dyno dynamics reads the LOWEST out of the dynos (dynojet, dynomax,mustang,dynodynamics)

so if we can get frankie in, with both of us running close to the same mods on the same dyno, im sure our valvetronic tune will outperform this flash aswell.

I will post my highest run tomorrow, since were doing max not average here

Question, even with consistantly high number readings from dynojet, the difference in power is true, and not exaggerated, no?

To eleborate, say Dyno-A reads 180whp base, and 200whp after the tuning.
Shouldn't that 20whp difference be the same regardless of which dyno used?
Say you used Dyno-B this time, reading 170whp base instead of 180whp. After tuning, it should still read 190whp(20whp increase after tune, like the previous dyno runs)?
Im asking this because that tune above showed consistent 20whp throughout the RPM range(ignoring 3000 and below RPM). That is very impressive. (except for that little dip in mid-range)
Reading brief high-peak number is less important in my opinion. You can have 50whp power spike at the end of the RPM but no difference in the rest of the RPM range. This can be quite useless.

I hope Im explaining things right. Even im confused after reading my own post. Let me know.

p.s: damn it craven, where is my 330i dyno. Im about to pull that $900 trigger on wheels instead!!! ahhh.. dilemma.

[FrankiE90]

yes lux.sh dyno'n on the same machine will yield a more consistent number for gains than
from 2 different machines.

Craven i'm not battle'n to see what tune is the best.
your tune can out perform my tune for all it wants.
i'm fine with that.
I'm just saying it's about the same.
how much more is 2 or 3 or even 4 more HP?
i kinda want to run the Gintani Tune just because
they're a good group of people, known, and local.

but really, i made this thread because i started noticing
the mid-range from your dynos. I had my old dynos and was
curious.

Also, i believe if i averaged my numbers they'll run close to the same.
and I didn't know your dyno's were averaged. Off of how many runs did you average?

- so the dyno you're using Craven, it's Gintani's in house one?
I personally just want to know.
or is it an independent shop?

[Gavin@MMW]

Originally Posted by lux.sh

Question, even with consistantly high number readings from dynojet, the difference in power is true, and not exaggerated, no?

To eleborate, say Dyno-A reads 180whp base, and 200whp after the tuning.
Shouldn't that 20whp difference be the same regardless of which dyno used?
Say you used Dyno-B this time, reading 170whp base instead of 180whp. After tuning, it should still read 190whp(20whp increase after tune, like the previous dyno runs)?
Im asking this because that tune above showed consistent 20whp throughout the RPM range(ignoring 3000 and below RPM). That is very impressive. (except for that little dip in mid-range)
Reading brief high-peak number is less important in my opinion. You can have 50whp power spike at the end of the RPM but no difference in the rest of the RPM range. This can be quite useless.

I hope Im explaining things right. Even im confused after reading my own post. Let me know.

p.s: damn it craven, where is my 330i dyno. Im about to pull that $900 trigger on wheels instead!!! ahhh.. dilemma.

basically its a worthless comparison in any matter, unless they are both done on the same dyno you couldnt really say. if the LET flash makes 20hp all they way up - then wow lol

but without the same variables we wont know for sure.

You explained great, and that would seem logical - but without a proper side by side we wouldnt know.

i do know we can keep pushing the Gintani valvetronic tune to more power - so in the end we will win lol

No battling dude, im just curious to know and since we have the ability to push and push why not make a "civil tune" and a Max tune file?

we still have 2-3 weeks or R&D on the ez flash for some models, it works for the 325,328 and 330 but not the z4 for some reason so were holding everything until we get it 100% (to answer your question)

[Gavin@MMW]

Originally Posted by FrankiE90

yes lux.sh dyno'n on the same machine will yield a more consistent number for gains than
from 2 different machines.

Craven i'm not battle'n to see what tune is the best.
your tune can out perform my tune for all it wants.
i'm fine with that.
I'm just saying it's about the same.
how much more is 2 or 3 or even 4 more HP?
i kinda want to run the Gintani Tune just because
they're a good group of people, known, and local.

but really, i made this thread because i started noticing
the mid-range from your dynos. I had my old dynos and was
curious.

Also, i believe if i averaged my numbers they'll run close to the same.
and I didn't know your dyno's were averaged. Off of how many runs did you average?

- so the dyno you're using Craven, it's Gintani's in house one?
I personally just want to know.
or is it an independent shop?

ya we are using Gintani's Dyno Dynamics, we did a total of 6 baseline stock pulls, 12 tuned pulls, and we averaged them and put the graph up for the most "mid" of them all.

I had a couple Frankenstein runs that were gnarly when it got cold, but it wouldnt be right to put those up as a total gain lol

[ska///235i]

do a LET, PBX, & Gintani side by side chart comparo

[FrankiE90]

Originally Posted by Craven 328

ya we are using Gintani's Dyno Dynamics, we did a total of 6 baseline stock pulls, 12 tuned pulls, and we averaged them and put the graph up for the most "mid" of them all.

I had a couple Frankenstein runs that were gnarly when it got cold, but it wouldnt be right to put those up as a total gain lol

coo.

Originally Posted by ska325xi

do a LET, PBX, & Gintani side by side chart comparo

that'll be interesting.
will you help me find good dyno sheets?
maybe we can get an update on the sticky if we create a new thread
with 2010 peformance mods.

[c_jeong89]

it would be sick if we can see the PBX, gintani tune, and let tune from the same car on the same dynos side by side but i doubt that will ever happen lol too much work and $$

[dt_328xi]

Originally Posted by ska325xi

do a LET, PBX, & Gintani side by side chart comparo

+1, I would love to see that. I bet PBX is the best bang for your buck, but the Gintani tune will have the biggest gains, but also the most expensive.

Now the real question is how much better is the Gintani tune and is it worth the extra $$$. I really hope so!

[Wlew]

Originally Posted by ska325xi

do a LET, PBX, & Gintani side by side chart comparo

+1 for sure

[Gavin@MMW]

Originally Posted by FrankiE90

coo.



that'll be interesting.
will you help me find good dyno sheets?
maybe we can get an update on the sticky if we create a new thread
with 2010 peformance mods.

If I have a pbx sitting around be can do all 3 on the same dyno!

[Wlew]

If the pbx didnt work with the gintani tune I would send you mine to use, but since it does... I dont think I will be reopening the ECU box for quite some time.

question on the two tunes... Does the LET tune take off the speed limiter like the Gintani does?

[Gavin@MMW]

I think it does? Lol frankie would know better tho, I could be totally wrong

[lux.sh]

Originally Posted by ska325xi

do a LET, PBX, & Gintani side by side chart comparo

then we need all 3 cars on the same day using same dyno.

[FrankiE90]

Originally Posted by Wlew

If the pbx didnt work with the gintani tune I would send you mine to use, but since it does... I dont think I will be reopening the ECU box for quite some time.

question on the two tunes... Does the LET tune take off the speed limiter like the Gintani does?

yes it does remove the speed limiter.

[evoi19]

nice post frankie. I have to concur with the LET tune gains. I have the same flash for a year now and it still feels like i have it. My dyno is posted as well and is in line with Frankie's.

[FrankiE90]

thanks drew.
you know what, i have your dyno.
i was look'n at it and the curve is right on line.

i'll post up.