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Re: Challenger inner fender wells....remove?
[Re: 590 Challenger]
#2158270
09/20/16 08:16 PM
09/20/16 08:16 PM
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Joined: Oct 2009
Posts: 1,267
North, Alabama
D-50
pro stock
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pro stock
Joined: Oct 2009
Posts: 1,267
North, Alabama
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I bought a set of the M/T 315/60 Pros and broke a axle on the second pass with the new tires. They are better than the regular drag radials.
1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
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Re: Challenger inner fender wells....remove?
[Re: 590 Challenger]
#2158399
09/20/16 11:07 PM
09/20/16 11:07 PM
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Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt
master
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master
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
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Make sure your front end is tight.
Brett Miller W9 cnc'd heads
STR Chassis fabraction
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Re: Challenger inner fender wells....remove?
[Re: 1967dartgt]
#2158594
09/21/16 08:59 AM
09/21/16 08:59 AM
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Joined: Jan 2015
Posts: 493
Parts unknown
590 Challenger
OP
mopar
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OP
mopar
Joined: Jan 2015
Posts: 493
Parts unknown
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Make sure your front end is tight. They were set full loose and had 0 traction. Maybe it would be safe to tighten them up at least half way before the next test hit. Traction just simply went away while everyone else was making record passes. I kinda have to blame the tires. Looking forward to trying it out
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Re: Challenger inner fender wells....remove?
[Re: 590 Challenger]
#2159276
09/22/16 10:38 AM
09/22/16 10:38 AM
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Joined: Jan 2003
Posts: 13,421
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,421
Marion, South Carolina [><]
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If your car acts like mine, having the front end real loose will cause it to go nowhere.
Need to stiffen the front up to get it to bite.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Challenger inner fender wells....remove?
[Re: an8sec70cuda]
#2159314
09/22/16 12:02 PM
09/22/16 12:02 PM
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Joined: Jan 2015
Posts: 493
Parts unknown
590 Challenger
OP
mopar
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OP
mopar
Joined: Jan 2015
Posts: 493
Parts unknown
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If your car acts like mine, having the front end real loose will cause it to go nowhere.
Need to stiffen the front up to get it to bite. I know I'm pretty new to this but that sounds really backwards to me. Why is that? it seems like full loose would really help weight transfer with the springs help lifting the front of the car?
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Re: Challenger inner fender wells....remove?
[Re: 590 Challenger]
#2159318
09/22/16 12:14 PM
09/22/16 12:14 PM
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Joined: Jan 2003
Posts: 13,421
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,421
Marion, South Carolina [><]
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You do not have a 10 or 11 sec big tire bracket car. Cars w/ a lot of power don't need help lifting the frontend. If it lifts fast it will unload the rear.
One example I remember reading from another thread...picture yourself standing on a bathroom scale holding one end of a 10 ft. long board. If you try to lift the other end of the board off the ground by yourself, you're gonna be putting a lot of weight down on the scale. Now, if someone helps you lift from the other end, there will be less weight forced down on the scale. The front springs/torsion bars/whatever don't need to help lift the front on a high powered car.
One thing Monte Smith keeps preaching is tightening up the front end of these cars.
Running mid 9s N/A, my car would not hook at all w/ a pair of those super loose 90/10 Calvert front shocks on it. Put my old Lakewoods back on, which are quite a bit stiffer, and it hooked great.
Ever notice most fast cars have very little, if any, front travel?
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Challenger inner fender wells....remove?
[Re: an8sec70cuda]
#2159326
09/22/16 12:29 PM
09/22/16 12:29 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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You do not have a 10 or 11 sec big tire bracket car. Cars w/ a lot of power don't need help lifting the frontend. If it lifts fast it will unload the rear.
One example I remember reading from another thread...picture yourself standing on a bathroom scale holding one end of a 10 ft. long board. If you try to lift the other end of the board off the ground by yourself, you're gonna be putting a lot of weight down on the scale. Now, if someone helps you lift from the other end, there will be less weight forced down on the scale. The front springs/torsion bars/whatever don't need to help lift the front on a high powered car.
One thing Monte Smith keeps preaching is tightening up the front end of these cars.
Running mid 9s N/A, my car would not hook at all w/ a pair of those super loose 90/10 Calvert front shocks on it. Put my old Lakewoods back on, which are quite a bit stiffer, and it hooked great.
Ever notice most fast cars have very little, if any, front travel? A drag racing strut has 3" of total travel.. you get just over 1.5" of extension .. if the shock is loose on the front it tops out QUICKLY and upsets the chassis which blows the tires off the rear 
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Re: Challenger inner fender wells....remove?
[Re: dvw]
#2159327
09/22/16 12:29 PM
09/22/16 12:29 PM
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Joined: Jan 2015
Posts: 493
Parts unknown
590 Challenger
OP
mopar
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OP
mopar
Joined: Jan 2015
Posts: 493
Parts unknown
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Mine are nearly full tight as well. Even Dizusters car on no prep last Thursday at Milan was -8/40 from full tight on the front rebound.
Doug Doug, are yours that tight to keep it from climbing or to give it more traction?
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Re: Challenger inner fender wells....remove?
[Re: MR_P_BODY]
#2159329
09/22/16 12:31 PM
09/22/16 12:31 PM
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Joined: Jan 2015
Posts: 493
Parts unknown
590 Challenger
OP
mopar
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OP
mopar
Joined: Jan 2015
Posts: 493
Parts unknown
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You do not have a 10 or 11 sec big tire bracket car. Cars w/ a lot of power don't need help lifting the frontend. If it lifts fast it will unload the rear.
One example I remember reading from another thread...picture yourself standing on a bathroom scale holding one end of a 10 ft. long board. If you try to lift the other end of the board off the ground by yourself, you're gonna be putting a lot of weight down on the scale. Now, if someone helps you lift from the other end, there will be less weight forced down on the scale. The front springs/torsion bars/whatever don't need to help lift the front on a high powered car.
One thing Monte Smith keeps preaching is tightening up the front end of these cars.
Running mid 9s N/A, my car would not hook at all w/ a pair of those super loose 90/10 Calvert front shocks on it. Put my old Lakewoods back on, which are quite a bit stiffer, and it hooked great.
Ever notice most fast cars have very little, if any, front travel? A drag racing strut has 3" of total travel.. you get just over 1.5" of extension .. if the shock is loose on the front it tops out QUICKLY and upsets the chassis which blows the tires off the rear I guess that will be a whole new way to look at it, thanks
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Re: Challenger inner fender wells....remove?
[Re: MR_P_BODY]
#2159334
09/22/16 12:39 PM
09/22/16 12:39 PM
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Joined: Jan 2003
Posts: 10,051
MN
JERICOGTX
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,051
MN
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A drag racing strut has 3" of total travel.. you get just over 1.5" of extension .. if the shock is loose on the front it tops out QUICKLY and upsets the chassis which blows the tires off the rear I have video of this from a car at Drag Week. Told the owner to stiffer the front as much as he could. You could CLEARLY see the suspension top out, and the chassis unload, tire spin. The owner said that wasn't the issue... OK. I didn't bother to film any more after that.
69 GTX
68 Road Runner
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Re: Challenger inner fender wells....remove?
[Re: JERICOGTX]
#2159338
09/22/16 12:45 PM
09/22/16 12:45 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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A drag racing strut has 3" of total travel.. you get just over 1.5" of extension .. if the shock is loose on the front it tops out QUICKLY and upsets the chassis which blows the tires off the rear I have video of this from a car at Drag Week. Told the owner to stiffer the front as much as he could. You could CLEARLY see the suspension top out, and the chassis unload, tire spin. The owner said that wasn't the issue... OK. I didn't bother to film any more after that. A lot of people keep thinking its all in the rear set up but the car is walking a thin line of blowing the tires off and a slight chassis upset will make a ton of difference.. when I say chassis, thats the whole chassis so the front plays just as much as the rear to the whole chassis package EDIT We are talking milliseconds here at the hit
Last edited by MR_P_BODY; 09/22/16 12:47 PM.
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