PDA

View Full Version : Please analyze datalogs...


mustang killer
07-18-2007, 11:53 PM
what do u think??? mods are cobb catless DP, cobb uppipe, CBE, AEM CAI and TDC e-tune on a 5EAT.

its weird, according to the HP calculator (MAF/.75=CHP) i had about 20 more crank horsepower with my previous TDC maps but with this new map Mike gave me i have 20 crank hp less but according to my calculated 50-80 mph, 60-80 mph, and 60-100 mph times using the datalogs i found out that i have quicker times with the less crank hp map. any thoughts?

keep in mind i did use manumatic on these 2 logs to get quicker calculated times unlike the other maps where i used automatic and got slower times.

mustang killer
07-19-2007, 12:05 AM
and these are the logs from the old maps which had a lower redline and were taken in automatic shifting mode

mustang killer
07-19-2007, 12:20 AM
NEW MAP (tested in manumatic):
50-80 mph: 3.937 sec
60-80 mph: 2.796 sec
60-100 mph: 6.687 sec
Peak calculated HP: 304 CHP
*got out of 3rd gear at 101 mph @ 6676 rpm

OLD MAP (tested in sport shift automatic):
50-80 mph: n/a
60-80 mph: 3.031
60-100 mph: 7.609
Peak calculated hp: 320 CHP
*got out of 3rd gear at 89 mph @ 6315 rpm

is the new map faster or is the car just that much faster in manumatic regardless of map?

qikslvr
07-19-2007, 12:51 AM
Hey it's late but I will look atthese in the morning and see if I can see what is different.

mustang killer
07-19-2007, 12:54 AM
Hey it's late but I will look atthese in the morning and see if I can see what is different.

alright thanks i appreciate it!

mickeyd2005
07-19-2007, 01:19 AM
You can't use MAF(g/s) to estimate power. Mike manipulates the MAF table to adjust the AFR. Jon said so in a different thread. It's meaningless unless you log both MAF(v) and MAF(g/s). (BTW, I completely disagree with his philosphy of manipulating MAF table to adjust AFR, but that's a different issue.)

And the MAF/0.75 never really worked anyway.

Put the transmission in manual mode and log from 2000 rpm to redline in third gear. Your logs don't start at a low enough rpm to check peak boost.

The point of a datalog is to get a feel for how the car is running and not to get the lowest 60-80 mph time time. You can only interpret the log if you do the log in one gear.

The address FF50B0 is incorrect for load. That's for the 2005 LGT.

Don't log EGT. It's pretty obvious you have a resistor mod. It's pointless to log EGT.

Use Enginuity to datalog. It has the correct address for load. Also, it will allow to log fine learning correction and feedback correction and boost error.

mwiener2
07-19-2007, 01:23 AM
*got out of 3rd gear at 101 mph @ 6676 rpm


*got out of 3rd gear at 89 mph @ 6315 rpm



Interpolate that to new redline of 7200 rpm and you can hit 115

I wish my 5mt would hit 100 in 3rd....then I could finish the 1/4 mile without a 3-->4 shift

Richard B.
07-19-2007, 01:24 AM
NEW MAP (tested in manumatic):
50-80 mph: 3.937 sec
60-80 mph: 2.796 sec
60-100 mph: 6.687 sec
Peak calculated HP: 304 CHP
*got out of 3rd gear at 101 mph @ 6676 rpm

OLD MAP (tested in sport shift automatic):
50-80 mph: n/a
60-80 mph: 3.031
60-100 mph: 7.609
Peak calculated hp: 320 CHP
*got out of 3rd gear at 89 mph @ 6315 rpm

is the new map faster or is the car just that much faster in manumatic regardless of map?


dude...this is weird...in my 07 at 6300rpm i am hitting about 95 when it shifts. s or s# mode. that's in full auto mode.

mustang killer
07-19-2007, 01:29 AM
i tried enginuity and i never got it to work so i used ecuexplorer and i think i will continue to.

it is difficult for me to find a SAFE stretch of road where i can go from 2000-redline so what i logged is the best i can do. i did however do about 2500-redline in 3rd gear

but based on those logs, hows my car running? and does the new map perform better than the old map?

Richard B.
07-19-2007, 01:30 AM
Interpolate that to new redline of 7200 rpm and you can hit 115

I wish my 5mt would hit 100 in 3rd....then I could finish the 1/4 mile without a 3-->4 shift


thi sis exactly why i say we can't really compare the 5eat to the man unless they have the exact same ratios. yo uguys get quicker acceleration but we get lower rpm highway cruising. at 80 i am hitting 2800rpms.

mustang killer
07-19-2007, 01:31 AM
Interpolate that to new redline of 7200 rpm and you can hit 115

I wish my 5mt would hit 100 in 3rd....then I could finish the 1/4 mile without a 3-->4 shift

say what on that first sentence???

and do u think i should finishing in 3rd for the 1/4 mile will help lower my ET?

mustang killer
07-19-2007, 01:33 AM
dude...this is weird...in my 07 at 6300rpm i am hitting about 95 when it shifts. s or s# mode. that's in full auto mode.

try experimenting with manumatic u will find its faster

Richard B.
07-19-2007, 01:33 AM
say what on that first sentence???

and do u think i should finishing in 3rd for the 1/4 mile will help lower my ET?


it's one less shift dude. shift time...

Richard B.
07-19-2007, 01:34 AM
try experimenting with manumatic u will find its faster

mine will shift at 6500 then and i would swear it shifts slower. there is nothing i can do to get it past 6500 rpms.

mustang killer
07-19-2007, 01:37 AM
mine will shift at 6500 then and i would swear it shifts slower. there is nothing i can do to get it past 6500 rpms.

that is the stock redline but with my TDC tune my redline is more than 6500.

is it normal for a 5EAT to be able to go up to 101 in 3rd?

mustang killer
07-19-2007, 01:39 AM
that is the stock redline but with my TDC tune my redline is more than 6500.

is it normal for a 5EAT to be able to go up to 101 in 3rd?


maybe this is why my 60-100 mph is CONSIDERABLY lower with the new map vs the old map in which i was in 4th from 89-100.

this is very interesting, i would really like to take it to the track because i truly believe i can run low low 13s with my setup. its amazing how fast my car feels, i am beating cars i never thought was possible on just a stage 2 legacy.

mickeyd2005
07-19-2007, 01:41 AM
i tried enginuity and i never got it to work so i used ecuexplorer and i think i will continue to.

it is difficult for me to find a SAFE stretch of road where i can go from 2000-redline so what i logged is the best i can do. i did however do about 2500-redline in 3rd gear

but based on those logs, hows my car running? and does the new map perform better than the old map?

At least do a log from 2000 rpm to 5000 rpm and then a log from 4000 to redline.

You really need to use enginuity because it allows you to log feedback correction and fine learning. If you don't want to use it, that's your choice. You might as well turn off load since it's incorrect.

The best way to estimate power is to use acceleration. Also, the road surface has to be flat or it has to be the same road.

If all things are equal, it looks like your new log makes more power, but your WOT run was so short that it is hard to say anything about your tune.

Richard B.
07-19-2007, 01:43 AM
that is the stock redline but with my TDC tune my redline is more than 6500.

is it normal for a 5EAT to be able to go up to 101 in 3rd?

i'd say it is impossible without changing redline or gears.

what is your mph at 6300 in 2nd and 3rd?


i am really starting to think i have a different gear ratio. i have thought so before but not enough info. the vids on youtube shows shifting is before mine.

mustang killer
07-19-2007, 01:46 AM
At least do a log from 2000 rpm to 5000 rpm and then a log from 4000 to redline.

You really need to use enginuity because it allows you to log feedback correction and fine learning. If you don't want to use it, that's your choice. You might as well turn off load since it's incorrect.

The best way to estimate power is to use acceleration. Also, the road surface has to be flat or it has to be the same road.

If all things are equal, it looks like your new log makes more power, but your WOT run was so short that it is hard to say anything about your tune.

ok 2moro night i am going to do a 2000-redline in 3rd of the new map and then will u be able to tell me about my tune?

also, all of these logs have been in almost indentical conditions- completely flat freeway at about 11 pm and 80 degrees

mustang killer
07-19-2007, 01:49 AM
i'd say it is impossible without changing redline or gears.

what is your mph at 6300 in 2nd and 3rd?


i am really starting to think i have a different gear ratio. i have thought so before but not enough info. the vids on youtube shows shifting is before mine.

i dont know what it is in 2nd but in 3rd it is 96 mph

mustang killer
07-19-2007, 01:53 AM
there are so many ppl on these forumns saying that the 5EAT with VF40 has terrible top end power but quite honestly mine feels like it accelerates hard all the way to redline.

and i have driven a 350z that according to the magazines is supposed to trap at around 101 mph and my legacy feels a hell of alot faster even up top, and its supposed to trap at 98-100 mph. i dont get it at all.

mickeyd2005
07-19-2007, 01:54 AM
i'd say it is impossible without changing redline or gears.

what is your mph at 6300 in 2nd and 3rd?


i am really starting to think i have a different gear ratio. i have thought so before but not enough info. the vids on youtube shows shifting is before mine.

You guys with 5EAT need to talk to 2005garnetGT. He understands tuning the 5EAT at redline better than most people.

You need to raise your rev limiter, but then you also need to raise your fuel cut resume and some other details. I'm sure TDC Mike made those changes for mustang killer.

Unfortunately, the 2007 can't be flashed yet.

mustang killer
07-19-2007, 01:56 AM
mikeyd2005, im sure there is enough info to tell if i have any problems with my tune right?

am i pulling timing? do i have a knock? from what i gave u does it look ok?

mickeyd2005
07-19-2007, 01:58 AM
there are so many ppl on these forumns saying that the 5EAT with VF40 has terrible top end power but quite honestly mine feels like it accelerates hard all the way to redline.


Fixed for you.

No one here says the 5EAT is responsible for lack of top end power. It's the VF40 hotside. Look at your acceleration curve. It's going down very fast at redline. That's typical for all VF40 cars, 5MT or 5EAT.

mickeyd2005
07-19-2007, 02:01 AM
mikeyd2005, im sure there is enough info to tell if i have any problems with my tune right?

am i pulling timing? do i have a knock? from what i gave u does it look ok?

No there isn't enough info. Peak boost occurs between 2900 and 3500 rpm. There's no way to tell because you didn't hit WOT until 3700 rpm.

It appears that you may have pulled some timing early but that could have just been caused by the initial throttle response. And you can't really tell if it truly is timing pulled or if the DA table has been adjusted. The only way to tell what real knock is if you have access to the DA table or if you log feedback correction and fine learning correction.

mustang killer
07-19-2007, 02:02 AM
Fixed for you.

No one here says the 5EAT is responsible for lack of top end power. It's the VF40 hotside. Look at your acceleration curve. It's going down very fast at redline. That's typical for all VF40 cars, 5MT or 5EAT.

yes but i have heard others say that with the same mods on both a MT and an AT leggy, the MT would trap 3-5 mph more.

mickeyd2005
07-19-2007, 02:05 AM
yes but i have heard others say that with the same mods on both a MT and an AT leggy, the MT would trap 3-5 mph more.

That's because the 5MT loses less power at the wheels than the 5EAT. At WOT, the torque converter doesn't lock up until around 5500 rpm. Also, the 5EAT has a taller 3rd gear so it doesn't accelerate as well as the 5MT.

You really can't compare the 5MT and 5EAT.

mustang killer
07-19-2007, 02:05 AM
No there isn't enough info. Peak boost occurs between 2900 and 3500 rpm. There's no way to tell because you didn't hit WOT until 3700 rpm.

It appears that you may have pulled some timing early but that could have just been caused by the initial throttle response. And you can't really tell if it truly is timing pulled or if the DA table has been adjusted. The only way to tell what real knock is if you have access to the DA table or if you log feedback correction and fine learning correction.

again i will do another log 2moro night starting at 2000k. maybe the pulled timing is from the downshift from 4-3 in manumatic???

mustang killer
07-19-2007, 02:08 AM
That's because the 5MT loses less power at the wheels than the 5EAT. At WOT, the torque converter doesn't lock up until around 5500 rpm. Also, the 5EAT has a taller 3rd gear so it doesn't accelerate as well as the 5MT.

You really can't compare the 5MT and 5EAT.

well i was comparing my 50-80 mph and 60-80 mph tests via datalogging in one of the specific forumns on here and i was as fast if not faster than the stage 2 MT cars, is this accurate?

mickeyd2005
07-19-2007, 02:09 AM
again i will do another log 2moro night starting at 2000k. maybe the pulled timing is from the downshift from 4-3 in manumatic???

Sounds good. Be safe and don't get a ticket. Remember, you can always just log to 5000 rpm or so.

qikslvr
07-19-2007, 09:53 AM
Try to get enginuity working again. If you got ECUexplorer working enginuity should fire right up now. Let me know if you need any help trouble shooting startup of enginuity.