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Old 12-16-2018, 02:56 PM   #15
Prochargedgen6
 
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That's exactly what I'm doing now, the car is back and on the dyno and checking the tune and going over everything, once I get that info I'll know what to do next, as far as the tires, my track set is the m/t street r 305/45/17, my street set up is the nitto 555r 305/35/20, I don't have a wide band or gauges fot a/f, yet, I do have a old school fuel pressure/vacuum gauge and I am about 8psi at 6000, in hoping it's just something in the tune, and a convertor will get me in the mid 10s, that's the goal
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Old 12-16-2018, 03:43 PM   #16
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Quote:
Originally Posted by Prochargedgen6 View Post
My 1/8 mile are 95 @ 7.49, 60ft 1.79, and it is supposed to be a custom tune, it is a A8 and I'm not sure about the transmission is unlocked and tuned, I really was expecting 102 in the 1/8th 127ish in the 1/4, and at least very low 11s right now the best is 11.56 at 120.68, not sure what to do next? Lt4 fuel system? Headers? And I will put a convertor in once I get this other stuff figured out
Something is not right for sure .. My stock 1SS ran 7.67 @ 92 last weds night .. You should be in the 6.80s no problem .. Get that car to a good tuner quick...
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Old 12-16-2018, 05:36 PM   #17
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Quote:
Originally Posted by Prochargedgen6 View Post
That's exactly what I'm doing now, the car is back and on the dyno and checking the tune and going over everything, once I get that info I'll know what to do next, as far as the tires, my track set is the m/t street r 305/45/17, my street set up is the nitto 555r 305/35/20, I don't have a wide band or gauges fot a/f, yet, I do have a old school fuel pressure/vacuum gauge and I am about 8psi at 6000, in hoping it's just something in the tune, and a convertor will get me in the mid 10s, that's the goal
Just so that you know, the implication some people have been making that a centrifugal supercharger needs an aftermarket torque converter or it's a slug is misleading. Would it be a benefit, yes, as getting the rpm up quicker into the area where it makes boost would be nice. But even with the stock torque converter, your kit should have a good chance of getting in the 10s. So I'm saying that the stock torque converter is not really why you went 11.5. Some examples of why I feel this way: I personally went 10.9s in hot weather (80s and 90s) with a base ECS kit using the stock torque converter, and I know that another poster in this thread, Eyefixstuff, ran a 10.6 with a P1SC in decent weather with the stock torque converter.
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Old 12-17-2018, 09:49 AM   #18
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I'm in the same boat. My times and traps were way low. But I did not have datalog capabilities. I ran an 11.8 at 115 at about 3000 DA in Vegas. Stock I ran 12.4 at 111. Tuner thought maybe high IATS. So, before knowing exactly what the issue was, I had them install an AEM wideband and an Alky Meth kit.

BTW: car made 608 RWHP and 523 RWTQ after adding meth. he said he didn't tune it very aggressively.

went back to the track. Ran an 11.7 at 119 2500 DA. IATs were great. Meth solved any IAT issue. Tuner said the TC is not keeping the car in the peak RPM range.

He said I also have another issue. The AFR is NOT the same on the right and left banks. He said the passenger side is about .8 leaner than the drivers side.

the logs indicated shifting at:
1st shifted at 5900
2nd shifted at 6165
3rd at 6240
4th at 6400

something is still very wrong. I raced a stock 2018 Mustang GT that night. I went 11.9, he went 12.3. We both trapped 117. I did not pull on him at all on the back end. I have 200 more RWHP. What the hell is happening. As a matter of fact, he gained 26mph, I gained 24mph on the back end.

To the OP, you're not alone.
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2016 2SS, MRC, NPP, A8. Procharger P-1X,Stage II,std bypass, 3.9, Alky Meth - 10.84 @129 - DA+2000
New Mods - GPI drop ins, Kooks 2", LT4 fueling, Cam, Circle D Converter, 3.5 pulley & dual nozzle meth.
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Old 12-17-2018, 10:02 AM   #19
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Quote:
Originally Posted by wnta1ss View Post
Just so that you know, the implication some people have been making that a centrifugal supercharger needs an aftermarket torque converter or it's a slug is misleading. Would it be a benefit, yes, as getting the rpm up quicker into the area where it makes boost would be nice. But even with the stock torque converter, your kit should have a good chance of getting in the 10s. So I'm saying that the stock torque converter is not really why you went 11.5. Some examples of why I feel this way: I personally went 10.9s in hot weather (80s and 90s) with a base ECS kit using the stock torque converter, and I know that another poster in this thread, Eyefixstuff, ran a 10.6 with a P1SC in decent weather with the stock torque converter.
It isn't misleading at all...centri cars need a converter to get the most out of them. I never said you couldn't go 10's with the stock converter. You can go 10's with basic bolt-ons only. The overall setup and tuning makes the difference.
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Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA
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Old 12-17-2018, 10:09 AM   #20
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Quote:
Originally Posted by grampa_ss View Post
I'm in the same boat. My times and traps were way low. But I did not have datalog capabilities. I ran an 11.8 at 115 at about 3000 DA in Vegas. Stock I ran 12.4 at 111. Tuner thought maybe high IATS. So, before knowing exactly what the issue was, I had them install an AEM wideband and an Alky Meth kit.

BTW: car made 608 RWHP and 523 RWTQ after adding meth. he said he didn't tune it very aggressively.

went back to the track. Ran an 11.7 at 119 2500 DA. IATs were great. Meth solved any IAT issue. Tuner said the TC is not keeping the car in the peak RPM range.

He said I also have another issue. The AFR is NOT the same on the right and left banks. He said the passenger side is about .8 leaner than the drivers side.

the logs indicated shifting at:
1st shifted at 5900
2nd shifted at 6165
3rd at 6240
4th at 6400

something is still very wrong. I raced a stock 2018 Mustang GT that night. I went 11.9, he went 12.3. We both trapped 117. I did not pull on him at all on the back end. I have 200 more RWHP. What the hell is happening. As a matter of fact, he gained 26mph, I gained 24mph on the back end.

To the OP, you're not alone.
Your shift points are too low for starters. 1st should be 6400, the rest of the gears up to 5th need to shift at 6500rpm...maybe even 6600 wit a PC car.

This is how mine shifts.

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Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA
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Old 12-17-2018, 10:32 AM   #21
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I would get a HP tuner set up or something similar to data log your runs. With the lack of top end MPH I would think you are pulling timing. AFR could be an issue but usually when you're losing power its because of pulled timing. It could be from kr or it could be from the intake temps. Either way that should be something that should be cleaned up in the tune. Try some 100 octane, if you're getting knock that should clean it up.
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Old 12-17-2018, 10:35 AM   #22
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High IAT's will kill your power. Especially on a stock set up. You can loose over 100rw with the timing being pulled. I always laugh to myself when I see guys sitting in the staging lanes idling their cars before a pass. Blower cars need a ton of extra stuff to make them work properly.
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Old 12-17-2018, 10:41 AM   #23
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Quote:
Originally Posted by PRAY View Post
High IAT's will kill your power. Especially on a stock set up. You can loose over 100rw with the timing being pulled. I always laugh to myself when I see guys sitting in the staging lanes idling their cars before a pass. Blower cars need a ton of extra stuff to make them work properly.
Prochargers intercooler is the best out there ..I could hot lap mine in the summer and never pulled timing ..IAT Temps where never a problem with Procharger air to air cooler .. He has other problems in his tune .. Even at 8 PSI he should be making 550 to 560 HP , clearly he is not making that .
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Old 12-17-2018, 10:49 AM   #24
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here's 2 datalogs. the 1st log i didn't get AFR, but the 2nd log has it. If you want to read them you'll have to remove the .txt from them (i'm sure you already know this).
Attached Files
File Type: txt run 1.hpl.txt (543.3 KB, 71 views)
File Type: txt run 2.hpl.txt (763.2 KB, 83 views)
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2016 2SS, MRC, NPP, A8. Procharger P-1X,Stage II,std bypass, 3.9, Alky Meth - 10.84 @129 - DA+2000
New Mods - GPI drop ins, Kooks 2", LT4 fueling, Cam, Circle D Converter, 3.5 pulley & dual nozzle meth.
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Old 12-17-2018, 10:57 AM   #25
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Quote:
Originally Posted by smokinzx14r View Post
Prochargers intercooler is the best out there ..I could hot lap mine in the summer and never pulled timing ..IAT Temps where never a problem with Procharger air to air cooler .. He has other problems in his tune .. Even at 8 PSI he should be making 550 to 560 HP , clearly he is not making that .
Sure, works well when you are actually driving the car and have airflow over it. Sit in traffic or the staging lanes and let me know what it gets up to. With a cold car and a free start at the starting line IAT's are usually up to 130* by the end of the burn out. You will see 150* temps by the end of the pass with no meth. Or if you didn't run a break out IAT sensor that actually sees your meth. On a decent tune that could be a loss of 6* of timing which is worth over 100rw. Dyno numbers and 1/4 passes have nothing to do with each other. Dyno numbers are corrected, track numbers are not.
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Last edited by PRAY; 12-17-2018 at 11:11 AM.
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Old 12-17-2018, 11:32 AM   #26
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Originally Posted by grampa_ss View Post
here's 2 datalogs. the 1st log i didn't get AFR, but the 2nd log has it. If you want to read them you'll have to remove the .txt from them (i'm sure you already know this).
It's shifting too early and running rich. Your hitting .69 lambda around 5500rpm which is way too damn rich if the wideband is reading accurate. I would think you would want to be around .80-.82. I believe you could use more timing as well. 11-13 degrees seems a little low to me.
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2016 NFG 1SS A8
Options-2SS Leather/NPP
Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP
Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA
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Old 12-17-2018, 11:39 AM   #27
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I have a break out IAT sensor installed to monitor the IATS after the Meth. My IATs at an idle were up to 127 at the starting line. by the end if 1st gear they dropped to 108. Temps continued to drop throughout the run. IAT was at 55 at the end of the run. Climbed back up to 113 on the return back.
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2016 2SS, MRC, NPP, A8. Procharger P-1X,Stage II,std bypass, 3.9, Alky Meth - 10.84 @129 - DA+2000
New Mods - GPI drop ins, Kooks 2", LT4 fueling, Cam, Circle D Converter, 3.5 pulley & dual nozzle meth.
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Old 12-17-2018, 11:45 AM   #28
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Quote:
Originally Posted by KingLT1 View Post
It's shifting too early and running rich. Your hitting .69 lambda around 5500rpm which is way too damn rich if the wideband is reading accurate. I would think you would want to be around .80-.82. I believe you could use more timing as well. 11-13 degrees seems a little low to me.
Thanks for the response.
The side that the AFR is reading in on..it the drivers side...the "too rich" side. The passenger side is .8 - 1.0 leaner.. Example: if the the afr gauge reads 10.0 on the drivers side...then its 10.8 on the passenger side. He had to tune accordingly.
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2016 2SS, MRC, NPP, A8. Procharger P-1X,Stage II,std bypass, 3.9, Alky Meth - 10.84 @129 - DA+2000
New Mods - GPI drop ins, Kooks 2", LT4 fueling, Cam, Circle D Converter, 3.5 pulley & dual nozzle meth.

Last edited by grampa_ss; 12-17-2018 at 11:56 AM.
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