2011 Dyno'd yesterday - mail tune vs custom

[Hufen]

I went and had my car custom Dyno tuned.

Here are some stats of the weather

99degress outside, felt hotter in the garage but didnt have a garage temp

50% humidity

All runs were done back to back, basically just enough time to reload the tune(5 minutes)

Engine Temp was 199 degrees on both pulls

They feel if it wasnt 100 degrees with the humidity that i could have got more out of it, but im happy with the results.

Go fast Car mods:
Steeda cold air intake
American Racing headers
American racing off road X
kooks catback

Red line is custom tune - Blue line is Mail order both 93 octane

 

[Hufen]

Both pulls were to 7000 rpm and his torque sensor wasnt working and had to order a new one

 

[wbt]

Did they give you the SAE numbers?

I am still not sold on the long tubes.

 

[Hufen]

nah no sae numbers, im sure i could get him to email them to me.

We did a pull before we installed the long tubes and o/r x

with steeda cold air, and kooks catback it put down 383rwhp with the EMAIL tune not custom.

The blue line is that same tune, all we did was add o/r x and long tubes and jumped from 383 to 413. Now if getting rid of the cats is what is mostly helping with that i really couldnt tell you but some people definately seem to think thats where all the power is comming from.

 

[wbt]

nah no sae numbers, im sure i could get him to email them to me.

We did a pull before we installed the long tubes and o/r x

with steeda cold air, and kooks catback it put down 383rwhp with the EMAIL tune not custom.

The blue line is that same tune, all we did was add o/r x and long tubes and jumped from 383 to 413. Now if getting rid of the cats is what is mostly helping with that i really couldnt tell you but some people definately seem to think thats where all the power is comming from.

Yessir. That seems to be a large restriction on these motors.

 

[JJ@WMS]

Keep in mind that most dyno's calculate hp from the amount of tq that the vehicle made so I'm not sure how you got any readings at all with a broken "tq sensor" ?

One more thing, if the runs were done back to back what happened to runs 2 and 3?

JJ

 

[Hufen]

Keep in mind that most dyno's calculate hp from the amount of tq that the vehicle made so I'm not sure how you got any readings at all with a broken "tq sensor" ?

One more thing, if the runs were done back to back what happened to runs 2 and 3?

JJ

Don't know about the torque readings... It said 1500 on all the pulls, as much as I wish that were true... I just relay back what I'm told/shown but I couldn't tell you why it said 1500 for all of them.

2 and 3 were different mail order tunes from the same company as 1. The 4th was the psi tune.

 

[Hufen]

Have a question for you jj sending you a pm

 

[JJ@WMS]

Have a question for you jj sending you a pm

JJ

 

[cobra mike]

Keep in mind that most dyno's calculate hp from the amount of tq that the vehicle made so I'm not sure how you got any readings at all with a broken "tq sensor" ?

One more thing, if the runs were done back to back what happened to runs 2 and 3?

JJ

im guessing runs 2 and 3 where the initial trys, and run 4 was final tune
no need to put the runs in there that may not have made good power, just the final results
i dont know about a tq sensor, a dynojet has a speed sensor that calculates how fast the drum is spun up, and then the comp, uses rpm signal v/s speed to calculate tq.
if you dont hook up the rpm sensor, it will just give hp. but no torque, and if you get an intermittent signal, the torque is all messed up..lol.
thats the way the 240c works anyways
thats why his said 1500, if you get a car running roller up fast with the rpm sayin 2000, its going to think it has a boat load of torque to spin it up that rate of speed with that rpm

 

[MexGT]

IMO the mail tune was pretty close, very good for being mailed.

Was it first mail tune or did you made datalogs ?

 

[Hufen]

all 3 email tunes had their AF way fucked up IMO. The af was in the 15.5 range and didnt even drop from there until about 5250 RPM at. I dont know if things have changed but 15.5 was way to lean on the 05-10's. I contacted them a couple times but they dont really seem to care, so i either assume its safe and im wrong, or they are trying to ignore it.

 

[Hufen]

Here is the dyno comparing email AF to standard AF...

 

[MexGT]

well that part of the graph should have been posted too ! lol

 

[19COBRA93]

IMO the mail tune was pretty close, very good for being mailed.

You did see the graph, right? lol. They're not even close at all. There's almost a 25 hp difference at certain points. When people are paying $1200 for a set of headers that give those same gains, 25 hp is a big difference.

 

[MexGT]

for being 1st mail tune, no datalog I consider 25hp fairly close. There is NO way amail tune could be dead on at the first file with no dataloging or whatsoever.

though A/F is a totally different story as posted lol

 

[luillo]

for being 1st mail tune, no datalog I consider 25hp fairly close. There is NO way amail tune could be dead on at the first file with no dataloging or whatsoever.

though A/F is a totally different story as posted lol

so, if i don't get datalog after my mail tune could i just take my car to a local dyno to verify what is putting down and AF then send that back where i got the mail tune to get corrections?

 

[Wes]

Here is the dyno comparing email AF to standard AF...

Interesting it was that far off given the type of O2 sensors on the 2011.

 

[gmantheman]

Was the A/F taking at the tail pipes?

 

[JJ@WMS]

FWIW anyone that uses an SCT XCAL3 for tuning can use the new livelink 6.2 software and a laptop to see what the stock widebands are reading at all throttle settings. They will read in lambda so you will have to multiply that by 14.64 to get the actual airfuel. So if your reading .820 lambda your airfuel is 12.0

We do not use tailpipe sniffers ever when we do our custom tuning, they are innacurate for the most part. The only way is to use a wideband.

I woudl redyno the car in question again using the SCT livelink software to see what the stock widebands are seeing.

JJ