390 rwhp WS6 dissapointing 12.8@111
06-21-2012, 08:44 AM
#22
Yea an autometer tach is a better reading than stock and is ideal but I had my efi live in the car data logging my runs the past couple of times and when I shift at 6700rpm on my stock tach, efi live says that my car is shifting at around 6400.
Plus I just think after market tachs on a car that Is hitting high 12's or 11's just looks like those imports that try to much at the track hahaha
Plus I just think after market tachs on a car that Is hitting high 12's or 11's just looks like those imports that try to much at the track hahaha
06-21-2012, 09:39 AM
#23
TECH Enthusiast
"But trapping 111 after a 1.9 60 ft is not adding up."
Have you data logged any of the runs?? If not, how do you know you have an optimum tune in it? Since MPH is usually a function of Hp, you may be leaving some on the table...Thus the low mph...
Have you data logged any of the runs?? If not, how do you know you have an optimum tune in it? Since MPH is usually a function of Hp, you may be leaving some on the table...Thus the low mph...
06-22-2012, 11:04 AM
#24
TECH Regular
Thread Starter
All of this right here.
First , get some line lock or let me drive your car with you in the passenger seat to show you how to do a proper foot brake burn out cuz you ask like 10 different people every time your out there " how do I do a burn out ?" Lol
Second , get some tires and a rearend that can hold up better than the 10 bolt and drive it like you stole it!!! Launch thay ****** and shift it at 6700 on your tack to account for human reaction with shifting a six speed.
Your 60 foot and you driving is killing your time.
Third, get a beater to drive everyday and stop putting miles and that nice bird. Will allow you drive it like you stole it and not have to worry about how you will get to work the next morning
you know where to find me if you need more of the same advice hahaha
First , get some line lock or let me drive your car with you in the passenger seat to show you how to do a proper foot brake burn out cuz you ask like 10 different people every time your out there " how do I do a burn out ?" Lol
Second , get some tires and a rearend that can hold up better than the 10 bolt and drive it like you stole it!!! Launch thay ****** and shift it at 6700 on your tack to account for human reaction with shifting a six speed.
Your 60 foot and you driving is killing your time.
Third, get a beater to drive everyday and stop putting miles and that nice bird. Will allow you drive it like you stole it and not have to worry about how you will get to work the next morning
you know where to find me if you need more of the same advice hahaha
Yup line lock will be my next mod for sure. I'll admit i'm not the best driver, but i have been getting better every time i'm out there.
I got my 60 ft down to 1.9 on the nittos on a wednesday night at Sac. Thats a small victory for me. Practicr practice practice is what it comes down to.
And yes i know where to find you
06-22-2012, 12:34 PM
#25
Lol, tyler i didnt know you and Matt count as 10 people.
Yup line lock will be my next mod for sure. I'll admit i'm not the best driver, but i have been getting better every time i'm out there.
I got my 60 ft down to 1.9 on the nittos on a wednesday night at Sac. Thats a small victory for me. Practicr practice practice is what it comes down to.
And yes i know where to find you
Yup line lock will be my next mod for sure. I'll admit i'm not the best driver, but i have been getting better every time i'm out there.
I got my 60 ft down to 1.9 on the nittos on a wednesday night at Sac. Thats a small victory for me. Practicr practice practice is what it comes down to.
And yes i know where to find you
With the same tires you have , austin was hitting a 12.7 all day long with just long tubes with no tune last year, so there is still SOME improvement to be made with those tires.
You are getting better but there is still some more **** you can improve on to make your mph and times faster at the track.
06-22-2012, 12:59 PM
#26
Judging from the information that is now being presented the operator is likley the route cause to the mph. I have seen cars pick up .3 and 4.5 mph just from a driver swap.. and there was no real huge weight change from one to the other, fwiw.
Stick cars, need to be driven like you WANT to break it. Any other way, and it's not going to run. Gas pedal can NOT, come off the floor from the time you leave until you're thru the traps. You lift off it once you lose over a mph every time.
Stick cars, need to be driven like you WANT to break it. Any other way, and it's not going to run. Gas pedal can NOT, come off the floor from the time you leave until you're thru the traps. You lift off it once you lose over a mph every time.
06-28-2012, 01:07 AM
#27
TECH Regular
Thread Starter
New best tonight 12.5 at 111 with a 2.0 60 ft.
Koni finally sent me a replacement under warrant to replace the damaged shock that threw off my launch geometry being stuck on full stiff.
Adjusted the rear Koni stocks to 2 sweeps away from full soft.
Also launched at 4k instead of 3k.
Still work to be done, but felt good to get out of the 12.8 @ 111 after about 35 runs prior.
Koni finally sent me a replacement under warrant to replace the damaged shock that threw off my launch geometry being stuck on full stiff.
Adjusted the rear Koni stocks to 2 sweeps away from full soft.
Also launched at 4k instead of 3k.
Still work to be done, but felt good to get out of the 12.8 @ 111 after about 35 runs prior.
06-28-2012, 11:38 AM
#28
TECH Regular
Thread Starter
I usually shift around 6100 trying not to hit the limiter.
Here is the before and after dyno chart from cam only, then after I added headers.
06-28-2012, 03:08 PM
#30
Why are you shifting before 6100? i shift there in my Lid only car... Ive seen bolt on cars trap 115 without power shifting... I highly doubt you will pick up THAT much MPH by powershifting, unless you shift slow as hell. Even if you did i highly doubt a 4mph increase would happen.
Edit: why not try raising the limiter so you dont fall to low in your powerband while shifting? just because your power peaks at 6250 doesn't mean you should shift there.
Edit: why not try raising the limiter so you dont fall to low in your powerband while shifting? just because your power peaks at 6250 doesn't mean you should shift there.
Last edited by adamantium; 06-28-2012 at 03:21 PM.
06-29-2012, 01:06 AM
#31
He improved his burnout tremendously and did launch it at a higher rpm and adjusted his shocks. His shifts sounded good and like he was in it to win it but I didn't know that you where shifting at 6100 rpm.
That's gona be part of your problem right there. I take mine all the way up to 6800-6900 when I shift do to the fact that the stock tack is off and human reaction. My peak horse is at 6400 rpm. When I look at my data logs after each run , I see that even though my car tach says 6900, efi live says that I usually and shifting at 6450 rpm.
What is your rev limit at? Mines at like 7
If I where you I would at least take it up to 6500-6600 before you shift and see what that will do
And be careful launching at 4k on a stock rearend. When was the last time your rearend fluid was changed ? That could be something to think about. I got a gear shop if you need it done.
That's gona be part of your problem right there. I take mine all the way up to 6800-6900 when I shift do to the fact that the stock tack is off and human reaction. My peak horse is at 6400 rpm. When I look at my data logs after each run , I see that even though my car tach says 6900, efi live says that I usually and shifting at 6450 rpm.
What is your rev limit at? Mines at like 7
If I where you I would at least take it up to 6500-6600 before you shift and see what that will do
And be careful launching at 4k on a stock rearend. When was the last time your rearend fluid was changed ? That could be something to think about. I got a gear shop if you need it done.
Last edited by tyler ovel; 06-29-2012 at 01:12 AM.
06-29-2012, 01:44 AM
#33
06-29-2012, 02:19 AM
#35
06-29-2012, 02:44 AM
#36
Don't feel too bad. My best in my cam only 2000 SS (heavy car with leather, no weight reduction and aftermarket ZR1 rims) was a 12.8 @ 113 on Sumitomo's. My car put down 387/384. Other cars on the same dyno ran about what the numbers said as well.
I was disappointed in the car, but sold it before I could install 4.10's and get a decent tire out back. I do know that car did well against others from a roll, so the power had to be there. I just lacked getting the car out of the hole at the track without spinning too much. Plus the DA wasn't the greatest when I ran.
I am willing to bet your car has more in it.
I was disappointed in the car, but sold it before I could install 4.10's and get a decent tire out back. I do know that car did well against others from a roll, so the power had to be there. I just lacked getting the car out of the hole at the track without spinning too much. Plus the DA wasn't the greatest when I ran.
I am willing to bet your car has more in it.
06-29-2012, 07:39 PM
#37
TECH Regular
Thread Starter
He improved his burnout tremendously and did launch it at a higher rpm and adjusted his shocks. His shifts sounded good and like he was in it to win it but I didn't know that you where shifting at 6100 rpm.
That's gona be part of your problem right there. I take mine all the way up to 6800-6900 when I shift do to the fact that the stock tack is off and human reaction. My peak horse is at 6400 rpm. When I look at my data logs after each run , I see that even though my car tach says 6900, efi live says that I usually and shifting at 6450 rpm.
What is your rev limit at? Mines at like 7
If I where you I would at least take it up to 6500-6600 before you shift and see what that will do
And be careful launching at 4k on a stock rearend. When was the last time your rearend fluid was changed ? That could be something to think about. I got a gear shop if you need it done.
That's gona be part of your problem right there. I take mine all the way up to 6800-6900 when I shift do to the fact that the stock tack is off and human reaction. My peak horse is at 6400 rpm. When I look at my data logs after each run , I see that even though my car tach says 6900, efi live says that I usually and shifting at 6450 rpm.
What is your rev limit at? Mines at like 7
If I where you I would at least take it up to 6500-6600 before you shift and see what that will do
And be careful launching at 4k on a stock rearend. When was the last time your rearend fluid was changed ? That could be something to think about. I got a gear shop if you need it done.
Changed the rear fluid like 2 months ago at Forcefed and no metal shavings in site. Everything looked real clean in there. I think I'm gonna change it again though before I head out to the track again.
And thanks again for your help out there Tyler, it feels good to see dramatic progress with just a couple tweaks.
06-30-2012, 01:45 PM
#38
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Dyno numbers are useless...I went 12.3 with 347hp with a full weight stick car with stock suspension on an 18" drag radial with 4.11's in a 10 bolt...get some seat time and a tire and try again...
