disappointing dyno

[deploytosave]

well i have a 2008 135i 6speed

mods are

DCI, VRSF catless DP's, VRSF FMIC, Berk catless mid, mufflerless axleback, Walbro450 LPFP, Vishnu Reflash, Vishnu procede REV5, Vishnu Flexfuel kit, and it was on 100% E85...

car made a maximum of 402WHP/432TQ

needless to say im pretty disappointed with those numbers
but i guess it is what it is!

for anyone curious as to how this set up sounds

[b1aze]

That sounds really low. Do you have a drag strip nearby? That would be the real test. It might just prove you were on a heartbreaker.

[1speedbike]

Three questions...

1) what type of dyno/what was the environment (temp, humidity)?
2) did you give everything time to adapt to the E85?
3) i notice it's a 2008... how many miles? has the engine/intake manifold ever been cleaned of carbon gunk?

all of those could bring your numbers down.

[Dackelone]

Your car didn't seem to fire right up. ? Then it kind of broke up on reving. HPFP maybe? I also noticed you changed the low pressure fuel pump(LPFP) in your mod list. Why?

[deploytosave]

Originally Posted by b1aze

That sounds really low. Do you have a drag strip nearby? That would be the real test. It might just prove you were on a heartbreaker.

yea, it went 13.02@115 with a 2.7 60' lol, track was shitty, and my street tires are worn the hell out...

Originally Posted by 1speedbike

Three questions...

1) what type of dyno/what was the environment (temp, humidity)?
Dynojet, houston texas, 68*F

2) did you give everything time to adapt to the E85?
yea, i have been running 100% E85 for a couple of weeks...

3) i notice it's a 2008... how many miles? has the engine/intake manifold ever been cleaned of carbon gunk?
63,000 miles, never had intake cleaned, could it really make that big of a difference? from what i can tell, i am down like 50whp and 60ftlbs from where i should be!
all of those could bring your numbers down.

[deploytosave]

Originally Posted by Dackelone

Your car didn't seem to fire right up. ? Then it kind of broke up on reving. HPFP maybe? I also noticed you changed the low pressure fuel pump(LPFP) in your mod list. Why?

with the factory LPFP, i could only run about 50/50 mix before the car would limp mode from fuel starvation, the factory LPFP couldnt keep up with the fuel demands with 100% E85

and its pretty common for E85 to have issues with cold starts

[pkimM3r]

Wow that is very disappointing with e85. If it was a mustang dyno, different story. Are there ways to dyno tune these cars?

[deploytosave]

Originally Posted by pkim1079

Wow that is very disappointing with e85. If it was a mustang dyno, different story. Are there ways to dyno tune these cars?

yea procede allows for live tuning..

id really like to see someone from vishnu step up to the plate here and offer some help... if anyone cares to look at some data logs let me know what to log and id be happy to send them your way... Fuel trims are sitting at 0% most of the time, but AFR's look healthy... i dont get it

[deploytosave]

[Ænema]

Without a baseline on the same dyno the numbers are useless. For all we know, the car may have had a 140whp delta(pretty damn good) or 90whp(not so good.) Post up some datalogs and see where your boost and timing is.

As far as "where you should be" don't buy that bullshit from ANY tuner, much less shiv.

[deploytosave]

Originally Posted by Ænema

Without a baseline on the same dyno the numbers are useless. For all we know, the car may have had a 140whp delta(pretty damn good) or 90whp(not so good.) Post up some datalogs and see where your boost and timing is.

As far as "where you should be" don't buy that bullshit from ANY tuner, much less shiv.

what do i need to log and whats the best way to post a log on here?

just do a screen cap of the graphs, or the CSV files?
what do i need to log to give you the best idea of whats going on?


and i know not to trust a salesmen, but other people are making a ton more power on similar setups, i cant help but think something is just... "off"

[1speedbike]

Originally Posted by deploytosave

yea, it went 13.02@115 with a 2.7 60' lol, track was shitty, and my street tires are worn the hell out...

I haven't seen before and after dynos for a tuned N54 engine, but Audi turbo engines have the same problems as ours with the carbon. Just googling one random result and I got:

http://www.audizine.com/forum/showth...=1#post5015638

The guy gained 25 whp after having his carbon cleaned out, for a grand total of 315 whp, up from his baseline dyno of 290 horses. I feel like you could gain more than that if the engines are built similarly enough, the carbon buildup is about equal, and you're putting out more horsepower to begin with... Then again his car is at 21.5K miles (!!!) and you're at way more than that, so I'd be betting you have more of a carbon problem than him. My car is at about 65K as well, and I have been looking into the intake valve cleaning at various places because the car feels about as fast now with meth, as it felt 2 years ago with just a JB4, though this is very subjective.

[Ænema]

Originally Posted by deploytosave

what do i need to log and whats the best way to post a log on here?

just do a screen cap of the graphs, or the CSV files?
what do i need to log to give you the best idea of whats going on?


and i know not to trust a salesmen, but other people are making a ton more power on similar setups, i cant help but think something is just... "off"

I don't run the PROcede, however from what i've seen the default logging channels are fine. As long as you have boost, timing, AFR and fuel trims that's the main thing. I prefer to have the csv file as opposed to a screen cap. To attach a csv file you either have to save a copy as a txt or make a zip file and attach that.

[SteveAZ]

Originally Posted by deploytosave

yea procede allows for live tuning..

id really like to see someone from vishnu step up to the plate here and offer some help... if anyone cares to look at some data logs let me know what to log and id be happy to send them your way... Fuel trims are sitting at 0% most of the time, but AFR's look healthy... i dont get it

So basically your DME isn't making any adjustments to fueling if trims are sitting at 0 right? What are your AFRs? What do your LPFP and HPFP look like? If your AFR's are that easy to keep low...couldn't that mean that you actually do need a valve cleaning? how many PSI are you running? What's your timing look like?

[flinchy]

400 isn't bad at all for stock turbo's

However, a 13.0 is not great for 400whp lol

[deploytosave]

Originally Posted by SteveAZ

So basically your DME isn't making any adjustments to fueling if trims are sitting at 0 right?correct, however id guess the procede is more so to blame

What are your AFRs?starting off as lean as 13.1 and slowly enriching to 11.1 throughout the RPM range

What do your LPFP and HPFP look like? 0%

If your AFR's are that easy to keep low...couldn't that mean that you actually do need a valve cleaning?not sure how those two are related

how many PSI are you running?the car targets as high as 19.3 at 3500 rpm

What's your timing look like? unsure

.

[ShocknAwe]

Over 50k miles, start by getting your carbon deposits cleaned out thoroughly, then go again. Starting with a clean engine is your best bet IMO.

[deploytosave]

Originally Posted by ShocknAwe

Over 50k miles, start by getting your carbon deposits cleaned out thoroughly, then go again. Starting with a clean engine is your best bet IMO.

noted, local guy does it for $300 so we will give er a whirl

[FOACAD]

Youre such a turd.

Fix your problem and go do some more pulls.

[JZWBMW]

I think its important to not get caught up in the numbers gain, I see this all the time and I wish people were not so caught up in the numbers game. I can tune a car for a guy and its running great, he is all smiles, the power feels great and the car is running about as well as we can with the current fuel and hw on the vehicle.

That all being said, if the dyno does not say a certain number, he is not happy and disappointed. I like acceleration runs, do a lot of 60-90mph runs and compare cars that way. Too many variables in drag racing, I can run a half second faster than your average Joe on the track, then if you have different wheel sizes and all that, another variable besides weather and conditions and car and driver, etc.

Every dyno can be different, without a baseline, it can be misleading...

JZW

[SteveAZ]

Originally Posted by deploytosave

.

My point to all that was...

Is your car running rich, hence why the DME isn't making any adjustments?

Could that be because your intake valves are dirty?

E85 burns cooler, thus making it able to run higher AFRs, thus making more power....no? But your AFRs are pretty low.

If you don't know what your timing is doing...your boost doesn't mean much.

Don't know what 0% means on your pump values.

Don't know anything about the vishnu stuff so this could all have no impact what-so-ever.

[BostonBeemah]

That's exactly how much I made with just jb4 intake and kittyless dps on like 30%e85 lol