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#1
02-07-2004, 08:59 PM
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Going to install a set of MT ET Streets on my Weld Draglites. Is it necessary to install rim screws? Will putting dish soap on the bead keep the tire from moving on the rim? I currently have BFG Drag Radials and might try the new MT Drag Radials. I don't want to drill holes in the wheels if I don't have to. My car runs high 11's, low 12's at 3800#'s. What tire pressure?
Thanks for any info. |
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#2
02-07-2004, 08:59 PM
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Going to install a set of MT ET Streets on my Weld Draglites. Is it necessary to install rim screws? Will putting dish soap on the bead keep the tire from moving on the rim? I currently have BFG Drag Radials and might try the new MT Drag Radials. I don't want to drill holes in the wheels if I don't have to. My car runs high 11's, low 12's at 3800#'s. What tire pressure?
Thanks for any info. |
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#3
02-07-2004, 09:08 PM
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Put a line of shoe polish on the rim and tire and see you need the screws 1st. Do a couple of hard burnout somewhere and if the line doesn't meet, the tire has slipped.
 I think its a shame to drill those beautiful draglites.There is always an alternative!
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NHRA tech. "Its just a 412, I swear it". Pontiac tip of the year, quit those damn cigarettes. 
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#4
02-07-2004, 09:20 PM
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Do what the man says. With modern rims and tires it very may not be necessary to use screws.
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Due to the current economic conditions...the light at the end of the tunnel has been turned off. Meet you at the finish line.....don't be late! |
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#5
02-08-2004, 05:13 AM
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Bret, I'm using the MT ET Streets on stock rims. They stay put unless you lower the air pressure below about 12psi. I run them at 18psi and they are fine. During testing to find the ideal air pressure they moved about 2-3" when I got down to 12psi AND they car was moving around a LOT on the upper end of the track. Best 60' and ET has been around 17-18psi. You will love the ET Streets, they hook like full race slicks. I tried BFG Drag Radials briefly and couldn't leave under full power without them going up in smoke.....Cliff
__________________
If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
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#6
02-08-2004, 07:41 AM
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If your not going to use screw do not use a tube. I ran et streets with no rim screws. I ran 11.78 with a 1.61 60' in a 3800lb car. I would use a magic marker to put a line on the tire and rim. Checked after every run. the most the tire moved was about 1". Never had any problem with them moveing that little bit. Now at 10's i ended up scewing them.
Mike S |
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#7
02-11-2004, 07:47 AM
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The only issue that people seem to forget is.......... and would apply if you are using a tube.
If the tire does rotate, it could tear the tube. I would hate to loose pressure over 100 mph and the results that might occur.  ************************************************** *************************** Build it fast, build it right, build a Pontiac. http://PontiacDude.cc |
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#8
02-11-2004, 07:57 AM
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I also run and recommend screws in anything going faster than 12's.
PY's first and ONLY real, live celebrity. If you don't know, you better ask somebody! |
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#9
02-11-2004, 03:05 PM
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Bret- just to be safe put the screws in. My tires were turning halfway around the rim before I screwed them down. With a heavy car and a good hooking track you can break the bead if they turn- don't need a flat at 100mph--
2003 NSCA/NMCA A/M World Champ- 1966 GTO #421
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65 GTO, Tiger Gold, Nostalgia Super Stock 421, 2-Carter AFB carbs, Stock Suspension, 3550lbs Full Exhaust-- 9.70's@135 66 GTO (Retired race car) 421 CID Multiple NSCA/NMCA World Champion 66 GTO 389 3x2, 4 speed, 3.90 gear, Montero Red 33K original Miles 67 GTO 2dr Post, 428, Tri Power, 3.55 Gears 80 Trans Am Black SE Y84 W72 WS6 |
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#10
02-11-2004, 06:52 PM
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How about tubes? I see that MT recommends running tubes.
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#11
02-11-2004, 07:18 PM
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All they do is add weight.
They are recommended from a safety point of view, but if you put something through the tire, its gonna make a hole in the tube too. Then you're out even more $. PY's first and ONLY real, live celebrity. If you don't know, you better ask somebody! |
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#12
02-11-2004, 10:29 PM
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I just bought a new set of M/T slicks and had them installed at their warehouse in Temecula, CA. They recommended that I did not install tubes. They did coat the complete inside of the slick with dishwash detergent, and stated that this will help seal the tire from airing down so quickly.
__________________
Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 Catalina Safari Wagon. |
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#13
02-12-2004, 04:44 AM
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Are most people using screws NOT running tubes? I used washers to keep the screws from going all the way through(I have tubes). If I had just used screws without tubes would the tires leak down fast? Thanks-JimT
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#14
02-12-2004, 04:52 AM
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I have a tube in one side on my new set of MT's after running over something on the top side of the track. I raced a few more times after doing so and they are staying put without screws. I keep the pressure right at 18lbs and mark them with a stripe in line with the valve stem. So far no issues but I'll put screws in them if they even think about moving on the rims.....Cliff
__________________
If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
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#15
02-12-2004, 07:39 AM
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by DiamondJim:
Are most people using screws NOT running tubes? I used washers to keep the screws from going all the way through(I have tubes). If I had just used screws without tubes would the tires leak down fast? Thanks-JimT<HR></BLOCKQUOTE> I bought the moroso screw kit and put the screws in with the tires/tubes mounted and aired up. I didn't use washers. No issues. I'm running ET drags and I had an old one sitting around - Before I started I went and looked at the thickness of the bead compared to the length of the screw and the width of the rim material and the screws weren't going to get to the tube. Still, I was a little nervous on that first one though LOL.... |
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#16
02-12-2004, 04:00 PM
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Running tubes with slicks will only hurt the ET.
 There is always an alternative!
__________________
NHRA tech. "Its just a 412, I swear it". Pontiac tip of the year, quit those damn cigarettes.
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#17
02-12-2004, 04:32 PM
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I used the Moroso kit. I have steel wheels and Hoosier QT Pros. The screws would have penetrated the tubes if I had not used washers. For people using screws without tubes, do the screws go all the way through or should they be spaced? Also Did you drill/screw with the slick inflated? Thanks- JimT
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#18
02-12-2004, 05:39 PM
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Jim,
I used the Moroso screws in my Weld Draglites by first drilling the appropiate size holes in the bare wheels and then installing the screws into the bead of the inflated slicks. The length difference you refer to may be the thickness difference between mags and steel wheels. I also use Hoosier QT Pros, with tubes for safety and stiffness. When I renew the slicks, I intend to reverse the process. Les 66 GTO Sport Coupe,455/trips,700r/2500stall,12bolt/3.08,1.79/13.01/104.5 68 GP daily driver and 2004 Route 66 Tour participant under restoration -------------------------- Better lucky than good
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Les Iden ---------------------------- '65 Buick Sport Wagon Custom, 340, T350, 3:23 '66 GTO Post/468, 700R4, 3.31 (Mike's as of 9-16) '68 Grand Prix/455, dual AFBs, T400, 2:93 posi (sold) '72 TA tribute/461, T400, 3.08, (Russ's as of 9-16) '97 Mitsubishi Eclipse Spyder Turbo, Konis, 5 speed '09 Torrent GXP, nav, Sun & Sound pkg., Bilsteins |
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#19
02-12-2004, 06:23 PM
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Thanks Les, I think you hit the nail(or screw-LOL) on the head. The steel wheels are a lot thinner than aluminum. I think the screw kit is designed for aluminum. I am happy with my set up but would like to go to some nicer wheels in the future. It seems like a lot of people with 10-11 second cars are NOT running tubes but are screwing the tires to the wheel. -JimT
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#20
02-12-2004, 07:41 PM
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The M/T rep suggested a minimum pressure of 15 lbs when I set the screws, and a little more wouldn't hurt. He said something about the bead seats better on the rim, and is held in place with the screws after they are set at the correct pressure. You can then lower pressure to what you want, but the bead will remain where it should be. Also, I have eight holes per side, and the screws look to be a standard #8 1/2" machine screw.
__________________
Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 Catalina Safari Wagon. |
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