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#1 |
Registered Member
Join Date: Aug 2000
Location: Thousand Oaks, CA
Posts: 396
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![]() Ijust got a set of Nitto 555R DRs. Last time I went to the track I was launching about 1500 on my Yokohamas and getting 2.2 - 2.3 60 ft times. How should I launch on these? Also their website says to run 15-20 PSI and do a 3 - 6 sec burnout. Sound right?
------------------ 93 GT, CCM long block, GT40P heads, Crane 2031, 1.7 RR's, Moroso cold air, 73mm Vortech, 65mm TB, Cobra intake, 24# injectors, MSD 6AL, MAC GT40P headers, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s, B&M Ripper shifter, Black Magic fan 13.817@102.45 - 1/4 |
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#2 |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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![]() I have been to the track 5 or 6 times with my nitto drag radials.
I run mine at 18 psi and burn out until I see lots of smoke then I launch around 3000 RPM's. My best 60 ft so far has been a 2.14 and I got that 60ft by riding the clutch a little off the line. On street tires I was barking 2nd and 3rd gear hard but after I put the nittos on no more barking gears and I dropped a tenth off of my best 60ft with the nittos my best ET dropped by 2 tenths. The only complaint that I have about them is mine have about 30 or so runs on them and the tread is already pretty shallow. If you heat them up really good you can get some good traction but since I only use the radials at the track next time I am getting Mickey thompson ET streets for sure. ------------------ 88 mustang gt convertible bored to 306 BBk equal length headers mac cold air fender kit 3.73 FMS gears cowl hood nitto drag radials ford racing clutch flow masters h-pipe 160* thermostat 16 degrees of timing electric fan off 94' t-bird jacobs electronics cap and wires. Edelbrock 1 1/2 inch drop springs. |
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#3 |
Registered Member
Join Date: Nov 1999
Location: Altoona, PA
Posts: 336
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![]() Start at 20lbs and go down in 2lb increments from there, but do not go lower than 16lbs. These tires must reach a temperature of over 100*F before their compound changes, therefore if its 90* out, then you don't have to spin them as long as you do if its 50* out. I normally do a healthy 5-8 second burnout. Last year before the heads, cam, rockers, and fuel upgrades I was running 14.3 at 96.5mph on street tires with 2.08-2.09 60's. I added the Nitto's and launched at 4000rpm, I dropped to a 13.83 at 98.55mph with 1.91-1.92 60's. My suspension is 100% stock. Slipping the clutch would only get me high 1.9's to 2.0 60's, but if I slipped it for a second just till the weight transfered then let the clutch fly, I would get my 1.91's. Since I added the 4.10's, heads, cam etc I have only mustered a 1.95, but I've only had it to the track 3 times this year, and I only launched at 2800-3000. I drive on mine all the time, my first set lasted for 12K miles and over 75 passes. Don't run a lot of air in them on the street, otherwise the centers wear out for some reason. I run no more than 24lbs in mine on the street, I don't know for sure if this is gonna help or not, but I'm hoping it will. Both my old nitto's and my cousin's wore out in the centers. Good luck.
------------------ 1995 NA GT CONVERTIBLE BEST ET: 13.27 BEST MPH: 105.17 AFR's, FTI cam, edelbrock intake, and lots more. http://www.angelfire.com/pa2/killercanary |
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Thread | Thread Starter | Forum | Replies | Last Post |
Launch Lesson Please & 60' Times | SleeperGT | Stang Stories | 13 | 03-16-2003 05:01 PM |
Launch Rpm Vs. Stall Speed | ciara | Windsor Power | 2 | 02-16-2003 10:20 AM |
Nitto drag Radials,do they suck? | Ackbar00 | Windsor Power | 13 | 04-15-2002 07:29 PM |
If you've used Nitto 555 DR's.... | silver_pilate | Windsor Power | 8 | 04-08-2002 08:11 AM |
Do Nitto DR's loss traction when worn down? | Killercanary | Windsor Power | 1 | 04-20-2001 11:20 AM |