Official Turbo Weight Loss Thread/ Lightest Turbo List
#121
02-21-2007, 10:04 PM
Originally Posted by Al Norton
Kevin,
I guess I'll get my chance in a month or so to see how hard these babies really are for getting any consistency at the strip. I'm used to a 3-speed Lenco and a two-stage rpm limiter for very consistent launches. Well, I was used to it in 1984. :-) Never tried to launch ANY Porsche, much less a tt at the drag strip. Going to go once anyway, just to get some numbers.
From all I read, I'll really have my work cut out for me with a tt. Do you back into the water box and really get a good smoking burn-out in second gear before you go to the line? I would suspect that any tire you choose needs some good heat-build before going to the line.
I guess I'll get my chance in a month or so to see how hard these babies really are for getting any consistency at the strip. I'm used to a 3-speed Lenco and a two-stage rpm limiter for very consistent launches. Well, I was used to it in 1984. :-) Never tried to launch ANY Porsche, much less a tt at the drag strip. Going to go once anyway, just to get some numbers.
From all I read, I'll really have my work cut out for me with a tt. Do you back into the water box and really get a good smoking burn-out in second gear before you go to the line? I would suspect that any tire you choose needs some good heat-build before going to the line.
#122
02-21-2007, 10:11 PM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 550 
Originally Posted by Al Norton
Kevin,
I guess I'll get my chance in a month or so to see how hard these babies really are for getting any consistency at the strip. I'm used to a 3-speed Lenco and a two-stage rpm limiter for very consistent launches. Well, I was used to it in 1984. :-) Never tried to launch ANY Porsche, much less a tt at the drag strip. Going to go once anyway, just to get some numbers.
From all I read, I'll really have my work cut out for me with a tt. Do you back into the water box and really get a good smoking burn-out in second gear before you go to the line? I would suspect that any tire you choose needs some good heat-build before going to the line.
I guess I'll get my chance in a month or so to see how hard these babies really are for getting any consistency at the strip. I'm used to a 3-speed Lenco and a two-stage rpm limiter for very consistent launches. Well, I was used to it in 1984. :-) Never tried to launch ANY Porsche, much less a tt at the drag strip. Going to go once anyway, just to get some numbers.
From all I read, I'll really have my work cut out for me with a tt. Do you back into the water box and really get a good smoking burn-out in second gear before you go to the line? I would suspect that any tire you choose needs some good heat-build before going to the line.
#123
02-22-2007, 07:29 AM
Hi D,
I thought we could both go up to Commerce on a Friday evening for one of their "test and tune" events. I understand they do give time slips. Maye we could video each other. I'll definitely let you know when I plan to go.
I thought we could both go up to Commerce on a Friday evening for one of their "test and tune" events. I understand they do give time slips. Maye we could video each other. I'll definitely let you know when I plan to go.
#124
02-22-2007, 10:05 AM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 550
Originally Posted by Al Norton
Hi D,
I thought we could both go up to Commerce on a Friday evening for one of their "test and tune" events. I understand they do give time slips. Maye we could video each other. I'll definitely let you know when I plan to go.
I thought we could both go up to Commerce on a Friday evening for one of their "test and tune" events. I understand they do give time slips. Maye we could video each other. I'll definitely let you know when I plan to go.
Yeah that would be great,
#125
02-22-2007, 01:37 PM
Originally Posted by KPG
NO WATER BOX ON STREET TIRES!!! Al, just a quick burnout to clean them off and your good to go. My sweet spot was a 2800rpm launch or thereabouts. I did try a one off banzai 5K launch it was a waste of time and clutch!! Under 3K should work. BTW, most of my 200+ passes at the 1/4 were with Turbo Buicks with automatics so consistency was never much of an issue. Good luck and make sure the Pbox is in there when you run. Kevin
Thanks for the tip. I never thought about that. Too used to slicks.
I will carry the P-Box and send you the data. I am having a hell of a time getting my software to do what I want it to. Me thinks the manual leaves a litle to be desired. I tried to lay out the boundaries of an imaginary track and was unable to manipulate the data in the program.
BTW, I'm still searching for a fairly level road to use for the 60-130 runs. If the car runs in the sixes, which I hope it will, about how long a piece of road will I need?
#126
02-22-2007, 07:01 PM
Originally Posted by Al Norton
Kevin,
Thanks for the tip. I never thought about that. Too used to slicks.
I will carry the P-Box and send you the data. I am having a hell of a time getting my software to do what I want it to. Me thinks the manual leaves a litle to be desired. I tried to lay out the boundaries of an imaginary track and was unable to manipulate the data in the program.
BTW, I'm still searching for a fairly level road to use for the 60-130 runs. If the car runs in the sixes, which I hope it will, about how long a piece of road will I need?
Thanks for the tip. I never thought about that. Too used to slicks.
I will carry the P-Box and send you the data. I am having a hell of a time getting my software to do what I want it to. Me thinks the manual leaves a litle to be desired. I tried to lay out the boundaries of an imaginary track and was unable to manipulate the data in the program.
BTW, I'm still searching for a fairly level road to use for the 60-130 runs. If the car runs in the sixes, which I hope it will, about how long a piece of road will I need?
DMK 6.15sec in 880ft
Markski 6.44 in 917ft
RennTech 6.45 in 926ft
KPG 7.93 in 1166ft
#127
02-26-2007, 12:07 AM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 550
We got unstickied for some reason but we'll continue with the updates so keep the info coming.
#128
03-01-2007, 10:37 PM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 550
I just weighed the hollow spokes (pirellis) I bought vs Techarts GTS (PS2's) and it was 8lbs per rear wheel and 10lbs per front wheel less for the hollow spokes.
Techarts:
Fronts- 50 lbs
Rears-60lbs
Hollows:
Fronts - 40lbs
Rears - 52lbs
lost 36lbs unsprung just doing this
Techarts:
Fronts- 50 lbs
Rears-60lbs
Hollows:
Fronts - 40lbs
Rears - 52lbs
lost 36lbs unsprung just doing this
#130
03-01-2007, 10:53 PM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 550
Originally Posted by tom kerr
Since different tires may also have something to do with it. There are huge differences between brands. And if you go to track tires they can be 5 pounds apiece lighter!!
My car should be at 3364 right now with 1/4 tank
next is:
LWFW
Clutch Acutator
GT3 Seats
Front Bumper Support
#131
03-01-2007, 10:58 PM
At the power level the TT's are, does 20-30lbs of unsprung weight make a difference? I mean on a couple hundred HP car it sure does but it seems like with 500hp, that much unsprung weight wouldnt feel any different. Would it?
#132
03-01-2007, 11:06 PM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 550
Originally Posted by geetee
At the power level the TT's are, does 20-30lbs of unsprung weight make a difference? I mean on a couple hundred HP car it sure does but it seems like with 500hp, that much unsprung weight wouldnt feel any different. Would it?
I gained 3 mph (1/4 mile) in my car by taking out a 175 lb passenger. You will see real results for every 100 lbs of sprung weight and every 20 lbs of unsprung weight. And the handling is greatly improved. Weight really takes a toll when you make turns
#133
03-08-2007, 05:03 AM
Originally Posted by jimmer23
Optima Red Top battery = 39.4lbs
Interstate MT-42 = 25.9lbs 2yr replacement 75month prorate
$71.95 + tax 26lbs + savings over stock and no need of a daily maintainer.
#135
03-08-2007, 06:18 PM
Tom, I have a PC680 as well. Only thing is I may take a overnight trip
and not be able to use a maintainer. And if I am going to carry jumper
cables...it defeats the purpose. I will however use it on track days for
the additional 11lbs savings. + I wanted to spare the chance of embarrasement
asking someone for a jump for my Porsche.
and not be able to use a maintainer. And if I am going to carry jumper
cables...it defeats the purpose. I will however use it on track days for
the additional 11lbs savings. + I wanted to spare the chance of embarrasement
asking someone for a jump for my Porsche.