Official NorCal L.E.T. Tuning Day 5-16-09
I am curious what #s everyone pulled.
I got 403 HP and 497 or the torque I believe. A little bit lower than I had hoped, but then I found out about the Mustang vs. Dynojet difference (approx 10% difference).
I'm thinking of doing another run but on a DynoJet. Do you guys have any experience with Pro-Street Motorsports in Hayward? If we do another meet there, we can possibly do 3-runs for about $50 (per the website).
Good luck!
My number is way way low

I am curious what #s everyone pulled.
I got 403 HP and 497 or the torque I believe. A little bit lower than I had hoped, but then I found out about the Mustang vs. Dynojet difference (approx 10% difference).
I'm thinking of doing another run but on a DynoJet. Do you guys have any experience with Pro-Street Motorsports in Hayward? If we do another meet there, we can possibly do 3-runs for about $50 (per the website).

This means BA55 and I got the worst of the worst temp of the day (I'd blame it to SLK55R
). I started around 2.45PM.... and was done around 3.45PM. BA55 followed....But yeah, your numbers look weird... Either the torque is too high or the hp is too low
What do you have in your car? Just software & pulley like your sig shows? If so, your torque is ridiculous.... damn just damn... w/ smaller pulley, I only got ~390whp & 440wtq. Temp plus your H/E may have played a big role... I think during your run it was still low to mid 70's.Either way, I only care about relative gains... and more impressively, with much more conservative tune (my A/F is much richer now compared to baseline pull w/ Evotech), LET was still able to get ~20whp/~30wtq across the board over Evotech tune in just 2 pulls.
but we just called it a day). To be fair w/ Evotech, mine was not dyno tune...I'll re-confirm the numbers when I get the dyno charts... but tonight, I'll sleep well
This means BA55 and I got the worst of the worst temp of the day (I'd blame it to SLK55R
). I started around 2.45PM.... and was done around 3.45PM. BA55 followed....But yeah, your numbers look weird... Either the torque is too high or the hp is too low
What do you have in your car? Just software & pulley like your sig shows? If so, your torque is ridiculous.... damn just damn... w/ smaller pulley, I only got ~390whp & 440wtq. Temp plus your H/E may have played a big role... I think during your run it was still low to mid 70's.Either way, I only care about relative gains... and more impressively, with much more conservative tune (my A/F is much richer now compared to baseline pull w/ Evotech), LET was still able to get ~20whp/~30wtq across the board over Evotech tune in just 2 pulls.
but we just called it a day). To be fair w/ Evotech, mine was not dyno tune...I'll re-confirm the numbers when I get the dyno charts... but tonight, I'll sleep well

. Either way it was great meeting everyone and I wish the weather was a little cooler. I fricken couldn't believe how hot it was, two day earlier would've given us 70's. Oh well like you said all we care about is the comparative gains.Here's how my 3 hour dyno time run went. We strapped down right after you left and my baseline numbers were 466 rwhp and 522 torque. Jerry was very impressed with the numbers given the conditions and complimented Vadim's tune but my A/R was really lean. I'll post more accurate numbers when I get my dyno sheets but it was somewhere around 13.6
. I've only been driving with this tune for about a week. Long story short, LET was able to get 452 rwhp and 516 on the torque with great A/R numbers...11.7 or so. This was after about 10 or more runs
. My IAT's started getting above the 150 mark or so after the 4th run or so and I stopped logging after that...getting a little frustrated. In the end we ran Vadim's tune again to compare with LET's best tune (due to all the runs) and after all the runs they were very very close but LET tunes was much safer. I basically walked with the same amount of power with a much safer tune. Jerry will be doing my car again on the next trip because he believes my car definitely has more power to be had.
I figured this Land and Sea dyno humbled many people including myself. Just by talking with other member it seems to run about 15% lower than dynojets. Before I left a stock 2006 E55 put up 310 rwhp and 370 tq, take it that he must have had cooling issues with it being so hot.
Last edited by bassn_07; May 17, 2009 at 01:23 AM.
466whp & 522wtq??? Good God.... if 15% discount from dynojet is roughly accurate, that's like 548whp & 614wtq on dynojet....
Considering 12% drivetrain loss, that's like 622hp & 698tq @ crank???

Now I start to wonder... assuming our cars & Azipod's car are as healthy, and assuming my car didn't experience heat soak during the runs (yours and Azipod's cars do have upgraded cooling), does pulley size (168mm mine vs. 180mm yours & Azipod's) make that big of a difference?
If so,
I heard 20" robs around 10-20whp. Not sure...BTW, I feel sorry for people who were behind you.... even more sorry for Jerry & Tony... LOL. It's 10:40PM... and I have a feeling they're still working....
Last edited by zoink; May 17, 2009 at 01:44 AM.
466whp & 522wtq??? Good God.... if 15% discount from dynojet is roughly accurate, that's like 548whp & 614wtq on dynojet....
Considering 12% drivetrain loss, that's like 622hp & 698tq @ crank???

Now I start to wonder... assuming our cars & Azipod's car are as healthy, and assuming my car didn't experience heat soak during the runs (yours and Azipod's cars do have upgraded cooling), does pulley size (168mm mine vs. 180mm yours & Azipod's) make that big of a difference?
If so,
I heard 20" robs around 10-20whp. Not sure...BTW, I feel sorry for people who were behind you.... even more sorry for Jerry & Tony... LOL. It's 10:40PM... and I have a feeling they're still working....
Jessie, it totally sucked that after all that time you couldn't get a run in.
BTW...Jerry said that I still have more left on the table and they'll be taking a closer look at my tune. If it was just a little cooler today it would've made things much more enjoyable.
Last edited by bassn_07; May 17, 2009 at 01:53 AM.
I am just waiting for other C32 inputs. Maybe they are still at the dyno? jk...
Last edited by CLKCLK; May 17, 2009 at 02:14 AM.
Bassn, did LET mention if you were getting knock with the 13.6 AF tune? I'm guessing that LET was able to bump your timing a few degrees after lowering the AF.
The Best of Mercedes & AMG
I am just waiting for other C32 inputs. Maybe they are still at the dyno? jk...
As alluded to above, it's really the delta between your baseline and post-mod numbers that is most telling. Of cource, that number's really only meaningful if it's same dyno, ideally same operator, etc.
As alluded to above, it's really the delta between your baseline and post-mod numbers that is most telling. Of cource, that number's really only meaningful if it's same dyno, ideally same operator, etc.
CLK please keep in mind going from dyno to dyno is not the best way to determine your gains. LET was given some very rough conditions to dyno in and they worked very hard on getting your gains. Your car must have been up there for at least 1 1-2 to 2 hours. I wish that I got the kind of gains you got but I already had a decent tune but a/f were off.
Bassn, did LET mention if you were getting knock with the 13.6 AF tune? I'm guessing that LET was able to bump your timing a few degrees after lowering the AF.
CLK please keep in mind going from dyno to dyno is not the best way to determine your gains. LET was given some very rough conditions to dyno in and they worked very hard on getting your gains. Your car must have been up there for at least 1 1-2 to 2 hours. I wish that I got the kind of gains you got but I already had a decent tune but a/f were off.
run around 1:00pm
I don't think I had a lot better temp though by 1:00pm temp was already up to 90 something
Jerry kept flashing it. He told me that he was surprise that my car did not get heat soak and kept picking up some better numbers every time
so he kept flashing it till it did not want it anymore. I know it's a hard day for everyone and special Jerry, Tony, and LazoI wasn't super happy with the result not because of the gain nor the number, but because we spent so much time and effort for that gain (I expect some more
). Don’t get me wrong. I really appreciate all the effort Jerry spent on my car. Gain is gain and gain is good. Yes, I definitely have it dyno again on the DynoJet to see how it does to get some ideas. 
Still haven't seen any other C32's inputs.
A fun day but tired day
run around 1:00pm
I don't think I had a lot better temp though by 1:00pm temp was already up to 90 something
Jerry kept flashing it. He told me that he was surprise that my car did not get heat soak and kept picking up some better numbers every time
so he kept flashing it till it did not want it anymore. I know it's a hard day for everyone and special Jerry, Tony, and LazoI wasn't super happy with the result not because of the gain nor the number, but because we spent so much time and effort for that gain (I expect some more
). Don’t get me wrong. I really appreciate all the effort Jerry spent on my car. Gain is gain and gain is good. Yes, I definitely have it dyno again on the DynoJet to see how it does to get some ideas. 
Still haven't seen any other C32's inputs.
A fun day but tired day

Yeah...where are all the other C32 guys? Come one guys lets post good or bad, I did.
Last edited by bassn_07; May 17, 2009 at 07:09 PM.


Dan and I left the same time a little bit after 10:00.
I only remember reading 288 rwhp. Can't remember the torque, probably 10 more. I got an 8 rwhp reading more than on a previous Mustang Dyno.
My A/F got a little better, too. 12.3
Jerry said he could do more, but, just didn't have anymore time to redo
the programming (I have Powerchip). With just the code3 pulley and intake, he said that's not bad at all. I think he was just as tired as everyone else.
We'll see when they come back in the Fall. Maybe?
Thanks again to the LET team despite some frustrating revealing numbers

Blame it on the heat!!
Last edited by 60n5pt1; May 17, 2009 at 10:43 PM.
Hope you had a good sleep and flight home....

Anyway, given the condition on Saturday, did you or 034 log my IAT or read it from ECU? I should've borrowed bassn's data logger.
Just curious whether I experienced some heat soak.... wouldn't be surprised if I did.To be honest with you, I could feel this 20-30 increased in whp & wtq (hopefully, not some placebo effect
) particularly in lower band. Really happy... but wouldn't mind you guys looking at it one more time in Oct/Nov on (hopefully) a lot cooler day.PS: BTW, in case any members here is interested in knowing my results.... see here https://mbworld.org/forums/w211-amg/...ml#post3529424
Sorry to all the guys after me for taking so long but it was out of my control. I was getting really frustrated but not at LET or anyone else but just the conditions and Internet problem they were having. Wayne was trying to do my tune remotely and they kept losing data in transition and had problem flashing my ECU...
. Either they all worked hard and did their best Sorry to all the guys after me for taking so long but it was out of my control. I was getting really frustrated but not at LET or anyone else but just the conditions and Internet problem they were having. Wayne was trying to do my tune remotely and they kept losing data in transition and had problem flashing my ECU...
. Either they all worked hard and did their best My base line was 267whp and 272wtq , I already had there ecu tune.
Once you left the other stock white E55 AMG was up but I dont know what he put down. I was next after him , I left at about 9pm idk how long the other guys were still there.
You Tube Vids of my Car
Strapping it up
Tony is in the Yellow Shirt Siting in my Car (hes from LET FYI)
Dyno Pull #2
Jerry is in the red shirt waiting to go get a beer after

Dyno #4
Last edited by OverDrive; May 18, 2009 at 02:59 AM.
You Tube Vids of my Car
Strapping it up
Tony is in the Yellow Shirt Siting in my Car (hes from LET FYI)
Dyno Pull #2
Jerry is in the red shirt waiting to go get a beer after

Dyno #4
. In the end they got everyone done but I think there was still some power left on the table with some of the custom tunes, time became the biggest concern.
Last edited by bassn_07; May 18, 2009 at 03:25 AM.
You Tube Vids of my Car
Strapping it up
Tony is in the Yellow Shirt Siting in my Car (hes from LET FYI)
Dyno Pull #2
Jerry is in the red shirt waiting to go get a beer after

Dyno #4
thanks
The main thing I wanted which I got was to correct my AFR as I was running lean. Jerry and Tony bumped me up a notch and made it safe. Unfortunately as Jerry predicted, that actually decreased my top WHP by about 5WHP, but gave me about 10 more torque at about 3k RPM's. I can definitely feel the extra torque.
But in reality these numbers don't mean much. I ran a 310WHP with my CODE3 pulley on a dynojet with my heavy *** 19' wheels. Now with the 185, my car is waaaaay stronger, especially since I also just went back to stock wheels.
Jerry and Tony were awsome. I cannot recommend them more. Stand up guys and just cool people. Although we ended up staying there until about 10PM, it was still cool to hang out with all the guys and meet LET.
BIG Thanks to Jerry and Tony!!
If anyone did not get there dyno plots please email me tony@letmotorsports.com so I can send them over to you.
Again thanks to everyone being such great sports and we shall see you guys very soon.




