Are 11's possible with a stock ported TPI ??? Yes, indeed I say.
10-30-2002, 02:21 PM
#1
Drifting
Thread Starter
Are 11's possible with a stock ported TPI ??? Yes, indeed I say.
First, a little background on the subject.
After my last trip to the track, I decided that the stock torque converter
had to go. It was just too tight and it felt as thought it was "giving up"
on the top end. After pulling the stock converter out of the car, you could
see that it was ballooning in the front. The replacement converter I decided
upon was PI Vigilante with a 2600 stall.
My last 2 trips to the track I ran 12.1 - 12.2 @ 112.xx. Obviously this is
very close to the 11 second range so, my hopes were that with a quality
converter in the car, I may get lucky and squeeze out a couple of tenths and maybe an additional MPH or two. HOPEFULLY that would get me into the 11's.
After the converter swap was done, I couldn't wait to head out to the track
and see if this converter upgrade had reaped any benefits.
Well, my track results did not turn out as I had initially
speculated.... they were better! I ran several 11.8's @ 116-117+ MPH.
I knocked off over 3+ tenths off of my previous BEST ET and added an
additional 4+ MPH to my trap speed ! My 60 foot times also dropped from high 1.6's down into the 1.5's, with a best of the day @ 1.56.
I guess it goes without saying that I am very happy with the results. As a
side note, I did not have a single run where I hooked up 100% off the line,
so that makes me optimistic that I can run a little quicker with a full
hook.
Previous best run.
Rt ... .679
60' ... 1.672
330 ...5.002
1/8 ....7.776
MPH ..88.96
1000 ...10.156
1/4 ......12.158
MPH ...112.62
New Best run.
Rt ... ...594
60' ... 1.568
330 ... 4.818
1/8 ... 7.597
MPH ... 90.92
1000 ... data not shown
1/4 ... 11.836
MPH ...117.26
Click on the link for some video footage of my runs.
http://my.execpc.com/~dfilo/Hole-Shot11.8.mov The video is in "QuickTime" format. If you don't have QuickTime, follow this
link and download it free. http://www.apple.com/quicktime/download/
Now that I am solidly in the 11's with the TPI, over winter I will be swapping out the stock ported intake/plenum & AS&M runners and installing a SuperRam with a TPIS Big Mouth intake. All components have been ported. I think that I should be able to tack on a couple more MPH's and drop my ET a couple more tenths with the SuperRam setup. Does this sound like a reasonable gain? Anyone have any thoughts on this?
It's all in the Hole-Shot :D
The current drive train is as follows:
1989 TPI 383, Stock ported plenum, Stock ported intake, AS&M runners, AS&M52mm throttle body. 1985 corvette stock Bosch injectors. Ported L98 aluminum heads, LPE 74219 cam, K&N filter Stock chip, Lingenfelter long tubes, Home-made exhaust w/JC Whitney mufflers, 700r4 transmission, PI Vigilante 2600 converter, B&M transpak w/shift kit, Dana 44 3.45:1 gear ratio.
[Modified by Hole-Shot, 12:24 PM 10/30/2002]
After my last trip to the track, I decided that the stock torque converter
had to go. It was just too tight and it felt as thought it was "giving up"
on the top end. After pulling the stock converter out of the car, you could
see that it was ballooning in the front. The replacement converter I decided
upon was PI Vigilante with a 2600 stall.
My last 2 trips to the track I ran 12.1 - 12.2 @ 112.xx. Obviously this is
very close to the 11 second range so, my hopes were that with a quality
converter in the car, I may get lucky and squeeze out a couple of tenths and maybe an additional MPH or two. HOPEFULLY that would get me into the 11's.
After the converter swap was done, I couldn't wait to head out to the track
and see if this converter upgrade had reaped any benefits.
Well, my track results did not turn out as I had initially
speculated.... they were better! I ran several 11.8's @ 116-117+ MPH.
I knocked off over 3+ tenths off of my previous BEST ET and added an
additional 4+ MPH to my trap speed ! My 60 foot times also dropped from high 1.6's down into the 1.5's, with a best of the day @ 1.56.
I guess it goes without saying that I am very happy with the results. As a
side note, I did not have a single run where I hooked up 100% off the line,
so that makes me optimistic that I can run a little quicker with a full
hook.
Previous best run.
Rt ... .679
60' ... 1.672
330 ...5.002
1/8 ....7.776
MPH ..88.96
1000 ...10.156
1/4 ......12.158
MPH ...112.62
New Best run.
Rt ... ...594
60' ... 1.568
330 ... 4.818
1/8 ... 7.597
MPH ... 90.92
1000 ... data not shown
1/4 ... 11.836
MPH ...117.26
Click on the link for some video footage of my runs.
http://my.execpc.com/~dfilo/Hole-Shot11.8.mov The video is in "QuickTime" format. If you don't have QuickTime, follow this
link and download it free. http://www.apple.com/quicktime/download/
Now that I am solidly in the 11's with the TPI, over winter I will be swapping out the stock ported intake/plenum & AS&M runners and installing a SuperRam with a TPIS Big Mouth intake. All components have been ported. I think that I should be able to tack on a couple more MPH's and drop my ET a couple more tenths with the SuperRam setup. Does this sound like a reasonable gain? Anyone have any thoughts on this?
It's all in the Hole-Shot :D
The current drive train is as follows:
1989 TPI 383, Stock ported plenum, Stock ported intake, AS&M runners, AS&M52mm throttle body. 1985 corvette stock Bosch injectors. Ported L98 aluminum heads, LPE 74219 cam, K&N filter Stock chip, Lingenfelter long tubes, Home-made exhaust w/JC Whitney mufflers, 700r4 transmission, PI Vigilante 2600 converter, B&M transpak w/shift kit, Dana 44 3.45:1 gear ratio.
[Modified by Hole-Shot, 12:24 PM 10/30/2002]
10-30-2002, 02:40 PM
#3
Are 11's possible with a stock ported TPI ??? Yes, indeed I say.
You my friend, have a SERIOUSLY fast car! I did a similar time, spinning drag radials..but I have a 383 SR. Not my best run..but hot dayum, I can only imagine what yours will do with a super ram up top and some custom tuning. [edit] I Like that! Bark at the moon is playing on your first run hehe. I'm an old metal head :)
WOW! :D Congratulations. Roll bar? :cheers:
[Modified by JD 90 383, 1:42 PM 10/30/2002]
WOW! :D Congratulations. Roll bar? :cheers:
[Modified by JD 90 383, 1:42 PM 10/30/2002]
10-30-2002, 02:53 PM
#4
Drifting
Thread Starter
Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (JD 90 383)
[QUOTE]I Like that! Bark at the moon is playing on your first run hehe. I'm an old metal head :)
WOW! :D Congratulations. Roll bar? :cheers:
QUOTE]
When I pulled up to get my time slip after my first run, the first words out of the time-slip person was "do you have a roll bar"? I knew at that point that I must have dipped into the 11's. And yes, I do have a roll bar.
Bark at the Moon !! Gotta love it!
:cheers:
WOW! :D Congratulations. Roll bar? :cheers:
QUOTE]
When I pulled up to get my time slip after my first run, the first words out of the time-slip person was "do you have a roll bar"? I knew at that point that I must have dipped into the 11's. And yes, I do have a roll bar.
Bark at the Moon !! Gotta love it!
:cheers:
10-30-2002, 02:57 PM
#5
Team Owner
Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (Hole-Shot)
Holy Chit!!!! I knew it could be done!!!! :cool: :cheers:
10-30-2002, 03:31 PM
#6
Safety Car
Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (Mr. Magoo)
Very impressive runs Holeshot.
The 383 w/TPI gives you tons of torque and it shows in the 1.56 60' time.
Awesome.
Vic
The 383 w/TPI gives you tons of torque and it shows in the 1.56 60' time.
Awesome.
Vic
10-30-2002, 03:48 PM
#7
Racer
Member Since: Apr 2002
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Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (Vic'89)
Nice job :cool: , so all i have to do is get a 383 short motor ready for next winter :D
:cheers:
:cheers:
10-30-2002, 04:10 PM
#8
Former Vendor
Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (BLUE ONE)
Very nice! When I started reading I did not see that you had a 383 in the sig. I was like holy crap something must be a mistake. Then I saw that you had the 383. Still that is VERY impressive numbers. That thing must really hook up to get a 1.5x 60. Great Job!
10-30-2002, 05:42 PM
#10
Pro
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Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (Hole-Shot)
Hole shot.....holy poopie!!! I figured that with enough persistance it was possible! I'm still shooting fot it while staying with the 350. I think it is possible, just has to be a great package. What rpm's are you shifting at? What rpms are you going through the traps at? I hope that in the spring I'll have my L-98 build up done, and I'll be the first to know if it's possible with 350ci. Congrats on your acomplishments!!! :cheers:
10-30-2002, 06:50 PM
#12
Melting Slicks
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Cruise-In IV Veteran
Cruise-In V Veteran
Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (Hole-Shot)
holeshot that truely is impressive its making power everywhere just look at the et and mph very good job :cheers:
10-30-2002, 07:44 PM
#14
Drifting
Thread Starter
Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (sinistervette)
What rpm's are you shifting at? What rpms are you going through the traps at?
Good Luck with your build up!
10-30-2002, 07:46 PM
#15
Are 11's possible with a stock ported TPI ??? Yes, indeed I say.
with the super ram on top and whatever engine management you go with, you'll prolly spin to about 56-5800. it makes a nice difference. LOTS of torque. wait and see ;) :D
10-30-2002, 07:58 PM
#16
Drifting
Thread Starter
Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (JD 90 383)
with the super ram on top and whatever engine management you go with, you'll prolly spin to about 56-5800. it makes a nice difference. LOTS of torque. wait and see ;) :D
10-30-2002, 08:01 PM
#17
Are 11's possible with a stock ported TPI ??? Yes, indeed I say.
How much more performance do you thing the SuperRam will give me over the TPI? Would 2-3 tenths be a reasonable expectation ??
10-30-2002, 11:39 PM
#18
Safety Car
Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (JD 90 383)
Wow Holeshot !!! Congrats, great running long tube motor.
I'm guessing the weather was substantially better with your new best considering the rise of the trap speed, however your 60 ft doesn't surprise me. Or maybe your old converter had excessive slippage before knocking down your mph. Most do not experience any substantial mph improvement with a Vigalante, myself included.
One other note, I think you are losing some serious et, typically if I run a 117 trap and 1.5x 60 ft, I will be in the 11.50's vs 11.80's..... lets try to break this down....
The below is your new best et.... by coincidence I have a slip from this summer where I have the exact same et on a spin pass and then another pass from a week ago that I had a good hook on.
You will notice, that you made it from the 60ft mark to the 330 ft mark in 3.25 seconds and from the 330 to 1/8th in 2.779 seconds. In comparison on my pass last week, I ran from the 60 ft mark in 3.183 seconds and the 330 to 1/8th in 2.675.... both substantially quicker than your pass but with a fairly close mph.... however your 1/8th to 1/4 is pretty normal for a 117 trap with a good 4.239 elapsed time. As you can see from my summer time et..... with just a 115 trap speed and a spinning 1.71 60 ft time, I was still able to run an 11.83.
Why do I bring this up... to encourage you to have a good look at your transmission, I'm not sure what rear gear you have, but with a 5300 rpm shift & guessed 3.07's, you are probably shifting a hair past the 60 ft mark into 2nd and a hair before the 1/8th mile mark into 3rd gear.... which by coincidence in both of those zones your et's are mysteriously slow..... I'd guess that the transmission is the party guilty of blatantly stealing et from you... :)
Do your shifts feel mushy ?
Did you lock up your torque converter in 3rd gear ?
..........Holeshot.............. me summer...........me last week
60' ... 1.568.................1.715............. .........1.541
330 ... 4.818................4.898.............. .......4.690
1/8 ... 7.597................7.573.............. .......7.361
MPH ... 90.92.............91.12................. ....92.05
1/4 ... 11.836............11.836................ ...11.605
MPH ...117.26 ..........115.94...................116.1 3
In any regards, congrats on the new best !!! And I think you have at least 2 more tenths as soon as you figure out where that missing et is between the 60ft mark and 1/8th mile mark.
btw, I think with the Superram, you would run at least 2 tenths and 2 mph better and probably 3 tenths... and even possibly 4 tenths.
Keep in mind with identical motors except for the runners and camshaft, LPE advertises their 383-74211-long tube runner motor at 395 hp @ 4700 rpm & 450 ftlbs of torque @ 3500 rpm, whereas the same motor with a little more duration and lift on the intake only (219 cam) and the SR, they advertise the motor to make 440 hp @ 5300 rpm & 480 ftlbs @ 4000 rpm...... 45 hp and 30 more ftlbs of torque is a big jump in power and torque.... and will typically add roughly 3 mph on a existing 11 second car.
talk to you later
Beach Bum
I'm guessing the weather was substantially better with your new best considering the rise of the trap speed, however your 60 ft doesn't surprise me. Or maybe your old converter had excessive slippage before knocking down your mph. Most do not experience any substantial mph improvement with a Vigalante, myself included.
One other note, I think you are losing some serious et, typically if I run a 117 trap and 1.5x 60 ft, I will be in the 11.50's vs 11.80's..... lets try to break this down....
The below is your new best et.... by coincidence I have a slip from this summer where I have the exact same et on a spin pass and then another pass from a week ago that I had a good hook on.
You will notice, that you made it from the 60ft mark to the 330 ft mark in 3.25 seconds and from the 330 to 1/8th in 2.779 seconds. In comparison on my pass last week, I ran from the 60 ft mark in 3.183 seconds and the 330 to 1/8th in 2.675.... both substantially quicker than your pass but with a fairly close mph.... however your 1/8th to 1/4 is pretty normal for a 117 trap with a good 4.239 elapsed time. As you can see from my summer time et..... with just a 115 trap speed and a spinning 1.71 60 ft time, I was still able to run an 11.83.
Why do I bring this up... to encourage you to have a good look at your transmission, I'm not sure what rear gear you have, but with a 5300 rpm shift & guessed 3.07's, you are probably shifting a hair past the 60 ft mark into 2nd and a hair before the 1/8th mile mark into 3rd gear.... which by coincidence in both of those zones your et's are mysteriously slow..... I'd guess that the transmission is the party guilty of blatantly stealing et from you... :)
Do your shifts feel mushy ?
Did you lock up your torque converter in 3rd gear ?
..........Holeshot.............. me summer...........me last week
60' ... 1.568.................1.715............. .........1.541
330 ... 4.818................4.898.............. .......4.690
1/8 ... 7.597................7.573.............. .......7.361
MPH ... 90.92.............91.12................. ....92.05
1/4 ... 11.836............11.836................ ...11.605
MPH ...117.26 ..........115.94...................116.1 3
In any regards, congrats on the new best !!! And I think you have at least 2 more tenths as soon as you figure out where that missing et is between the 60ft mark and 1/8th mile mark.
btw, I think with the Superram, you would run at least 2 tenths and 2 mph better and probably 3 tenths... and even possibly 4 tenths.
Keep in mind with identical motors except for the runners and camshaft, LPE advertises their 383-74211-long tube runner motor at 395 hp @ 4700 rpm & 450 ftlbs of torque @ 3500 rpm, whereas the same motor with a little more duration and lift on the intake only (219 cam) and the SR, they advertise the motor to make 440 hp @ 5300 rpm & 480 ftlbs @ 4000 rpm...... 45 hp and 30 more ftlbs of torque is a big jump in power and torque.... and will typically add roughly 3 mph on a existing 11 second car.
talk to you later
Beach Bum
10-31-2002, 12:13 AM
#19
Racer
Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (Hole-Shot)
Hole shot,
That Mustang got spanked. (I felt it from here) You gotta love it :D :D You give us L98's hope yet. :cheers:
That Mustang got spanked. (I felt it from here) You gotta love it :D :D You give us L98's hope yet. :cheers:
10-31-2002, 12:25 AM
#20
Le Mans Master
Member Since: Jan 2002
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Re: Are 11's possible with a stock ported TPI ??? Yes, indeed I say. (Hole-Shot)
Umm...when you go SR, can I inherit your TPI parts? :D. Man that is a mean/fast TPI. Gives me hope of being able to keep the TPI and still go fast.
