Shift earlier for TQ.. thoughts this experiment ?

[TopherSho]

What are you getting 0-60? And are you break boosting or just mashing the gas? (On my phone, can't look at the log)

Sadly i am only getting 4.8 - 5.1.   which also perplexes me a smidge.  I am wondering how accurate the LiveLink readings are.

On the second set the 1st 3,4 were pedal flips,  no boosting.  At the end there are two brake boosted launches.

i am a tad bit worried i am not going to be in the 12's at any point.  in some of my late datalogs my 0-110 mph test runs were over 13. :\ 

maybe my expectations were set wrong ?

[TopherSho]

http://www.ecoboostperformanceforum.com/index.php/topic,7703.0.html

Just put this thread up .. asking for opinions on potential 1.4 mile times .. 0-60's etc...

[AJP turbo]

You aren't high elevation right? I cant remember.

I fully expect for you to be 12's maybe even mid 12's ...your spark is on the high end for pump gas compared to some ive seen

Id launch around 2k and let it eat...it may spin and squeal but ymwith awd you should maintain good forward momentum

With sub 2.0 60' and a 110 trap you should be deep into 12's

Hopefully you have a day or night where ambiant temps are less than 70 and iat's are too bad

If your dynojet corrected numbers are high 300's and tq is mid to high 400's id say you have to run 12's

Glock coma here on the forum ran high 12's with a 2 bar tune if mine

[StealBlueSho]

What are you getting 0-60? And are you break boosting or just mashing the gas? (On my phone, can't look at the log)

Sadly i am only getting 4.8 - 5.1.   which also perplexes me a smidge.  I am wondering how accurate the LiveLink readings are.

On the second set the 1st 3,4 were pedal flips,  no boosting.  At the end there are two brake boosted launches.

i am a tad bit worried i am not going to be in the 12's at any point.  in some of my late datalogs my 0-110 mph test runs were over 13. :\ 

maybe my expectations were set wrong ?

Could be environment related.. your could be timing yourself with a really crappy DA going on.... lots of factors... I notice the ambient is in the low 40's.. could be traction off the line.. looks like a bit of wheel spin...

I don't go upto 110mph on the street.. but my 0-90 is about 8 seconds launching with Brads tune... my 0-60's are about 4.4 - 4.5 seconds just mashing the pedal.. 4.0 to 4.1 seconds break boosting... 

I also have quite a few more mods than you do... and those times were done a good day with temps in the 60's....

[TopherSho]

You aren't high elevation right? I cant remember.

I fully expect for you to be 12's maybe even mid 12's ...your spark is on the high end for pump gas compared to some ive seen

Id launch around 2k and let it eat...it may spin and squeal but ymwith awd you should maintain good forward momentum

With sub 2.0 60' and a 110 trap you should be deep into 12's

Hopefully you have a day or night where ambiant temps are less than 70 and iat's are too bad

If your dynojet corrected numbers are high 300's and tq is mid to high 400's id say you have to run 12's

Glock coma here on the forum ran high 12's with a 2 bar tune if mine

Eugene Oregon is 430-elevation
Portland is Frikken almost seal level at 30   that will help a smidge.

I may end up finding another dyno :\  Only getting 298hp out of 383ftlbs just seems weird to me...  that just doesn't math right.

[paokara777]

I agree, AJP is a the man!
Very happy with his tune

I am also racing on Friday (only a 1/8th mile track though)

We can compare 1/8th miles

I have an AJP tune as well
He didn't tell me how much spark in total he has in my tune, i'll ask him now.
But im on 93 pump gas

My last 1/8 mile with a canned SCT tune was 8.5 im hoping to get in the very low 8's this time around

[Colorado-SHOBro]

The best advice i can give is to work on your launches. Find the highest rpm you can launch at without breaking the traction limit or triggering any traction or torque control from the ECU. First time i had this car at the track i didn't know how to launch it correctly. I've since cut 3-4/10ths from my 0-60 time strictly form practicing a good brake boost launch. For reference my 0-60 time for my 91oct tune is around 4.7-4.8 and my best from my E20 tune is 4.35.
I'm also @ 5500ft elevation and have to launch at 2300rpm to build any boost though so not exactly apples to apples.

[lamrith]

You aren't high elevation right? I cant remember.

I fully expect for you to be 12's maybe even mid 12's ...your spark is on the high end for pump gas compared to some ive seen

Id launch around 2k and let it eat...it may spin and squeal but ymwith awd you should maintain good forward momentum

With sub 2.0 60' and a 110 trap you should be deep into 12's

Hopefully you have a day or night where ambiant temps are less than 70 and iat's are too bad

If your dynojet corrected numbers are high 300's and tq is mid to high 400's id say you have to run 12's

Glock coma here on the forum ran high 12's with a 2 bar tune if mine

Eugene Oregon is 430-elevation
Portland is Frikken almost seal level at 30   that will help a smidge.

I may end up finding another dyno :\  Only getting 298hp out of 383ftlbs just seems weird to me...  that just doesn't math right.

I am a ways out as AJP and I need to go back and tune for my new downpipes, but once the tune is more dialed in I plan to run a dyno up here.  I have not contacted them to verify what brand it is, but I have made contact with one here in Tacoma I am hoping to use.  We could maybe talk to them about booking both at the same time?  Sent you a PM, let me know.

[TopherSho]

Find the highest rpm you can launch at without breaking the traction limit or triggering any traction or torque control from the ECU.

hmm this i can log and read.. what data elements should i focus on ?

[FoMoCoSHO]

You aren't high elevation right? I cant remember.

I fully expect for you to be 12's maybe even mid 12's ...your spark is on the high end for pump gas compared to some ive seen

Id launch around 2k and let it eat...it may spin and squeal but ymwith awd you should maintain good forward momentum

With sub 2.0 60' and a 110 trap you should be deep into 12's

Hopefully you have a day or night where ambiant temps are less than 70 and iat's are too bad

If your dynojet corrected numbers are high 300's and tq is mid to high 400's id say you have to run 12's

Glock coma here on the forum ran high 12's with a 2 bar tune if mine

Eugene Oregon is 430-elevation
Portland is Frikken almost seal level at 30   that will help a smidge.

I may end up finding another dyno :\  Only getting 298hp out of 383ftlbs just seems weird to me...  that just doesn't math right.

What year is your SHO?

If you have DMR functionality the car will tell you how much torque its making.

[Colorado-SHOBro]

The best advice i can give is to work on your launches. Find the highest rpm you can launch at without breaking the traction limit or triggering any traction or torque control from the ECU. First time i had this car at the track i didn't know how to launch it correctly. I've since cut 3-4/10ths from my 0-60 time strictly form practicing a good brake boost launch. For reference my 0-60 time for my 91oct tune is around 4.7-4.8 and my best from my E20 tune is 4.35.
I'm also @ 5500ft elevation and have to launch at 2300rpm to build any boost though so not exactly apples to apples.

it's more by feel and watching how much boost you're building before you launch. i aim for about 3psi before i let the brake go(which is 2350rpm for me).  if you launch too hard you'll get too much wheel spin and the ecu will close your throttle and limit boost. it will show up as torque source 15 in the logs when that happens but you'll feel it either way.
it's all about finding that limit where you launch and get a chirp out of the tires but don't break em loose. . . at least it was for me.


Sent from my iPhone using Tapatalk

[dubcitySHO]

it's more by feel and watching how much boost you're building before you launch. i aim for about 3psi before i let the brake go(which is 2350rpm for me).  if you launch too hard you'll get too much wheel spin and the ecu will close your throttle and limit boost. it will show up as torque source 15 in the logs when that happens but you'll feel it either way.
it's all about finding that limit where you launch and get a chirp out of the tires but don't break em loose. . . at least it was for me.


Sent from my iPhone using Tapatalk

This has been the plague of getting my SHO off the line.  Mine started showing torque source 15 last November and I have been seeing much more knock sensor activity than while Brad was building my tune. 

[StealBlueSho]

it's more by feel and watching how much boost you're building before you launch. i aim for about 3psi before i let the brake go(which is 2350rpm for me).  if you launch too hard you'll get too much wheel spin and the ecu will close your throttle and limit boost. it will show up as torque source 15 in the logs when that happens but you'll feel it either way.
it's all about finding that limit where you launch and get a chirp out of the tires but don't break em loose. . . at least it was for me.


Sent from my iPhone using Tapatalk

This has been the plague of getting my SHO off the line.  Mine started showing torque source 15 last November and I have been seeing much more knock sensor activity than while Brad was building my tune.

Cold temps cause all kinds of havoc getting off the line... cold street, cold tires, etc... also, depending on where you live, winter blend gas can cause knock issues if you are tuned.. I know 93 is 93 but still...or it could be the more aggressive timing due to cold weather...

[lamrith]

The best advice i can give is to work on your launches. Find the highest rpm you can launch at without breaking the traction limit or triggering any traction or torque control from the ECU. First time i had this car at the track i didn't know how to launch it correctly. I've since cut 3-4/10ths from my 0-60 time strictly form practicing a good brake boost launch. For reference my 0-60 time for my 91oct tune is around 4.7-4.8 and my best from my E20 tune is 4.35.
I'm also @ 5500ft elevation and have to launch at 2300rpm to build any boost though so not exactly apples to apples.

it's more by feel and watching how much boost you're building before you launch. i aim for about 3psi before i let the brake go(which is 2350rpm for me).  if you launch too hard you'll get too much wheel spin and the ecu will close your throttle and limit boost. it will show up as torque source 15 in the logs when that happens but you'll feel it either way.
it's all about finding that limit where you launch and get a chirp out of the tires but don't break em loose. . . at least it was for me.


Sent from my iPhone using Tapatalk

My car is PP and I plan to run with Advancetrac off, so there should not be an issue with TC kicking in?

[dubcitySHO]

Yeah we are waiting on summer blend to be brought back out and see if that will get us back to where we left off. 

I'm debating contacting Jason over at pimods and see if he can utilize IDS to completely remove the logic of closing the throttle blade once to much wheel spin is sensed and just let her eat, a la PP equipped full advance track shutdown.