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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > LET Motorsport Flash Stage 1 - First to dyno on this side of the States!



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      03-03-2009, 04:39 AM   #1
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LET Motorsport Flash Stage 1 - First to dyno on this side of the States!

Today wasn't the greatest day to dyno a car, here is why:

Ambient temp was around 70F
Humidity was a power destroying 86%!!!

average for the area is 62%

Which explains the lower than average numbers produced. However the delta is what we are truely after here.

The car: A 2008 E92 coupe with manual transmission
Modification: None

Results...

Stock:

228.7 hp
271.6 tq


LET Stage 1:

268.6 hp
298.8 tq


The LET Flash Stage 1 made 40 more hp and 27 more ft/lb of torque at peak than stock.

In the curve, it made 44 more hp! and 37 more ft/lb! of torque, great numbers for a flash running 11.7 psi of boost.

During some back to back dyno runs we saw significant drop in both hp and tq, heat soak of the stock intercooler was the cause here. We lost 18 hp and 12 ft/lb of torque at peak. In the curve, we lost 24 hp and 22 ft/lb or torque. By adding a nice intercooler, such as the Code3 Spearco unit will solve this heat soaking issue.

Retail price on the LET Motorsport Flash is $699.
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Last edited by HP Autosport; 03-03-2009 at 12:58 PM.
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      03-03-2009, 05:19 AM   #2
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Interesting numbers... but yeah weather sucked in socal today. i'm more interested in seeing peak numbers and deltas... like when its dryer outside.
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      03-03-2009, 05:46 AM   #3
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Originally Posted by samurai1200 View Post
Interesting numbers... but yeah weather sucked in socal today. i'm more interested in seeing peak numbers and deltas... like when its dryer outside.
You will most likely see very silimar base number and gians, just with the power shifted upwards of 30+ across the board.
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      03-03-2009, 06:20 AM   #4
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No one cares about the top power numbers, but those delta values are horrible! The whole group may bump up under better conditions, but the delta should remain the same. If that flash is only worth 40 rwhp, then that is not good at all.
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      03-03-2009, 06:31 AM   #5
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You can gain more with a mere JB+...sorry.
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      03-03-2009, 10:49 AM   #6
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looks smooth at least

I would love 70 degree weather w 86% humidity in Maryland right now....HP figures be damned.
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      03-03-2009, 12:27 PM   #7
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Interesting. BTW, what kind of dyno did you use? I am curious because even those stock numbers look kinda low.
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      03-03-2009, 12:52 PM   #8
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Quote:
Originally Posted by NJ65 View Post
Interesting. BTW, what kind of dyno did you use? I am curious because even those stock numbers look kinda low.
That is why you focus delta. It really takes the "high or low dyno" factor out of the equation. 70 rwhp deltas are quite common with JB3 and PROcede.
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      03-03-2009, 12:57 PM   #9
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Quote:
Originally Posted by Former_Boosted_IS View Post
No one cares about the top power numbers, but those delta values are horrible! The whole group may bump up under better conditions, but the delta should remain the same. If that flash is only worth 40 rwhp, then that is not good at all.
Keep in mind, this is just the Stage one at 11.7 psi.
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      03-03-2009, 12:57 PM   #10
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Quote:
Originally Posted by NJ65 View Post
Interesting. BTW, what kind of dyno did you use? I am curious because even those stock numbers look kinda low.
Please refer to the weather conditions that day in the original post.
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      03-03-2009, 01:05 PM   #11
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Quote:
Originally Posted by HP Autowerks View Post
Keep in mind, this is just the Stage one at 11.7 psi.
yup that is low boost for sure.

any plans for more stages to be tested?

you will need a 14-15psi map to get people excited on here.
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      03-03-2009, 01:14 PM   #12
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Quote:
Originally Posted by Sniz View Post
yup that is low boost for sure.

any plans for more stages to be tested?

you will need a 14-15psi map to get people excited on here.
There will be Stage 2 and Stage 3 of this LET Motorsport Flash shortly.

The Stage 1 numbers are right in line some of the other Stage 1 flashes currently out there.
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      03-03-2009, 01:15 PM   #13
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I'm confused by the numbers...

Stock:

228.7 hp
271.6 tq


LET Stage 1:

268.6 hp
298.8 tq

What's with the stock car dyno'ing @ 228.7WHP? Stock 335i's typically dyno @ ~ 260-275WHP. Even if this was done on a Mustang dyno, it's way too low. Also, why is it a "Stage 1" flash? What other mods did the 335i have for this stage 1? In any account, I agree with the others who say that +40WHP and + 27 lb-ft TQ is not so good; it's like the SSTT or worse.
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      03-03-2009, 01:45 PM   #14
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Quote:
Originally Posted by sflgator View Post
I'm confused by the numbers...

Stock:

228.7 hp
271.6 tq


LET Stage 1:

268.6 hp
298.8 tq

What's with the stock car dyno'ing @ 228.7WHP? Stock 335i's typically dyno @ ~ 260-275WHP. Even if this was done on a Mustang dyno, it's way too low. Also, why is it a "Stage 1" flash? What other mods did the 335i have for this stage 1? In any account, I agree with the others who say that +40WHP and + 27 lb-ft TQ is not so good; it's like the SSTT or worse.
That's superflow windyn from the footer on the posted chart image: http://www.superflow.com/data/index_743.cfm

I had heard they made chassis dynos but I've never seen one myself: http://www.superflow.com/dynamometers/index_824.cfm

They must be a bit low compared to Dynojet.
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      03-03-2009, 02:07 PM   #15
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Quote:
Originally Posted by BavarianBullet View Post
That's superflow windyn from the footer on the posted chart image: http://www.superflow.com/data/index_743.cfm

I had heard they made chassis dynos but I've never seen one myself: http://www.superflow.com/dynamometers/index_824.cfm

They must be a bit low compared to Dynojet.
Ok; well significantly lower then. In any event, the increase in HP & TQ isn't that impressive.
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      03-03-2009, 02:14 PM   #16
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Quote:
Originally Posted by sflgator View Post
Ok; well significantly lower then. In any event, the increase in HP & TQ isn't that impressive.

well look at the boost.....turn your car down to 11.7psi and see what it puts down.

if this tune made 44hp over stock in the delta at 11.7psi, I dont see why it wont put down an additional 45hp or so at 14.7psi...given an estimate of 15hp/1lb of boost.

that would put it right around 85-90hp over stock.
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      03-03-2009, 02:23 PM   #17
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Quote:
Originally Posted by Sniz View Post
well look at the boost.....turn your car down to 11.5psi and see what it puts down.
I agree.
Or, let's see what the flash does when the peak boost is 15 psi.

Congrats Harold!
This seems to be very promising!
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      03-03-2009, 02:39 PM   #18
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What happened with this flash?

What ever happened with this flash from LET.
http://www.1addicts.com/forums/showthread.php?t=225202

It was said to be more HP than a JB3 with that amount of boost?

Just curious.
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      03-03-2009, 02:51 PM   #19
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Quote:
Originally Posted by timtech View Post
What ever happened with this flash from LET.
http://www.1addicts.com/forums/showthread.php?t=225202

It was said to be more HP than a JB3 with that amount of boost?

Just curious.
I don't know what version of the JB3 LET tested.

This wasn't meant to compete with JB3, it's an entry level Stage 1 flash.
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      03-03-2009, 03:46 PM   #20
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Quote:
Originally Posted by Sniz View Post
well look at the boost.....turn your car down to 11.7psi and see what it puts down.

if this tune made 44hp over stock in the delta at 11.7psi, I dont see why it wont put down an additional 45hp or so at 14.7psi...given an estimate of 15hp/1lb of boost.

that would put it right around 85-90hp over stock.
Yes, I understand that the boost is set to 11.7psi and it will definitely make more HP/TQ if set to a higher boost. But, I was just curious what "other" mods were on this car with the "Stage 1" Flash? In addition, what "stage" would this flash be to run 15psi...stage, 2 stage 3, stage 4, and what other mods would be required????
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      03-03-2009, 03:47 PM   #21
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Quote:
Originally Posted by sflgator View Post
What's with the stock car dyno'ing @ 228.7WHP?
high humidity.
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      03-03-2009, 03:50 PM   #22
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Quote:
Originally Posted by samurai1200 View Post
high humidity.
No, I don't think so. My car was dyno'd in a much warmer weather with similar humidity and got 265WHP / 286 lb-ft. RWTQ stock; it's usually that humid here.
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