Anyone going fast (like low 10's or quicker) on a 50 series DR??? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 8 Old 06-04-2009, 01:24 PM Thread Starter
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Anyone going fast (like low 10's or quicker) on a 50 series DR???

Just curious, I'm running a 275/60 MT Drag Radial right now...

I want to see what guys are running on the 50 series (any DR), and what sort of 60' times are possible with the shorter sidewall.


2003 Mustang GT
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post #2 of 8 Old 06-04-2009, 02:15 PM
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I recently switched from a 275/60/15 MT to a 275/50/15 and I haven't gotten my 60ft back. I was running mid 1.6s and now my best is a high 1.7. I also switched the clutch from a king cobra (organic disc) to a ACT (ceramic disk). I just can get traction now...I think the clutch is shocking the tires too much. My datalogs were showing that the king cobra clutch was slipping on launch so I switched clutches.

The factory stock guys are running 275/50 BFGs and getting 1.5x 60fts so I'm not blaming the tire.


351W, 26x10.5 MT ET Streets, Team Z goodies, AEM, NA for now
1.6253 60ft, 11.823 @ 115.2
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post #3 of 8 Old 06-04-2009, 09:08 PM
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I've ran a 1.39 60ft on the 275/50/15 M/T drs on my 90 coupe.

85 LTD exFHP 383 Windsor/Vortech T trim [email protected] 133.4
90 LX coupe 446ci Dart/Twin Turbo in progress
93 LX hatch 427/Vortech in.. well... some year..
99 Cobra vert.. 03 swap/solid rear ..482rwhp/507rwtq..stock eaton
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post #4 of 8 Old 06-05-2009, 10:05 AM
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Wow, 1.39? That's impressive. What kind of suspension, shock settings, and tire pressure did you run? Is it an auto?

351W, 26x10.5 MT ET Streets, Team Z goodies, AEM, NA for now
1.6253 60ft, 11.823 @ 115.2
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post #5 of 8 Old 06-05-2009, 10:11 PM
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Originally Posted by Blue351 View Post
Wow, 1.39? That's impressive. What kind of suspension, shock settings, and tire pressure did you run? Is it an auto?
Front: D+D K member with 125lb 14" springs,Strange 10 way struts a couple clicks off full lose

Rear:Old school Mega-bite jr lowers,HPM non adjustable uppers,Strange 10 way shocks a click or so from full tight,stock V-8 springs,air bag in the right rear at 25 psi.

C4 auto with rev. manual vb,NO trans brake,stall flashes about 4000-4200.
Usually run around 14 psi in the drs.

427 makes a lot of torque... that helps a lot. Car is about 3175 with me.

85 LTD exFHP 383 Windsor/Vortech T trim [email protected] 133.4
90 LX coupe 446ci Dart/Twin Turbo in progress
93 LX hatch 427/Vortech in.. well... some year..
99 Cobra vert.. 03 swap/solid rear ..482rwhp/507rwtq..stock eaton
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post #6 of 8 Old 06-05-2009, 11:07 PM
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10.70s @ 125 rolling out then flooring it 1.59 60 ft on 2 year old bfg 275 50 15s

upr k member with coil overs
summit upper and lowers
90 10s and 50 50s
373s in the stock rear
12 psi of air in the tires
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post #7 of 8 Old 06-06-2009, 10:43 AM
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I seen a car down here that came to run in a low 5 second 1/8 mile class. It was an early 70s Chevelle. I was in shock when I saw the little 275/50 tires on it and that it was hanging with cars going 5.20s in the 1/8. He was competitive and I want to say I saw him crack off a 5.30 in the 1/8.

Carl S.: 417", Yates C3s, Edelbrock 2828, Dominator, Powerglide, 4.10s, 3100 lbs raceweight. 1.27 60' [email protected] nitrous on 275/60 Mickeys in Ultra trim
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post #8 of 8 Old 06-06-2009, 12:46 PM
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Just went out last night on a very green track. Rained all week, no rubber and did two 1.49's and a 1.48 60' on 275/50/15's of MT.

A good track low 1.4 high 1.3's easy.

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