Why is "big gear/big tire" combo better?
07-21-2005, 08:15 AM
#21
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Very few if any on here need the 29 tires. One thing they do is make it easier to get the car down the track.
The 28 MT's are a great tire. Most people will run what the rules they are following allow them to run. If your limited to the 28's, you will find a way to make them work and they are fast. The 28's can go consistent mid 1.20 60fts and i know they have gone 1.18 60ft on occasion (you have to have big power to do it, and a good car). The current record in a 28x10.5nonW is 7.37 @ 190+ mph. The tire can take it.
Most shouldn't even consider the 29's until they are close to running 7's. But, again the 29 for many people is easier to run and that is what most people are looking for, especially since the LS1TECH series allow the 29's. The 29's have the capability to run low 7's.
Dan
The 28 MT's are a great tire. Most people will run what the rules they are following allow them to run. If your limited to the 28's, you will find a way to make them work and they are fast. The 28's can go consistent mid 1.20 60fts and i know they have gone 1.18 60ft on occasion (you have to have big power to do it, and a good car). The current record in a 28x10.5nonW is 7.37 @ 190+ mph. The tire can take it.
Most shouldn't even consider the 29's until they are close to running 7's. But, again the 29 for many people is easier to run and that is what most people are looking for, especially since the LS1TECH series allow the 29's. The 29's have the capability to run low 7's.
Dan
07-21-2005, 10:23 AM
#23
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Originally Posted by gator's 99TA
why do the stock eliminator guys run 30x9" hooser/et drags then?
And would we not agree that a 7 second ride on 28x10.5's is way over the edge and that there have been some big crashes in like Super Street Outlaw over the years?
07-21-2005, 10:33 AM
#24
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Originally Posted by gator's 99TA
why do the stock eliminator guys run 30x9" hooser/et drags then?
07-21-2005, 11:32 AM
#26
The height isnt what I'm talking about its the width.
Case in point I have a 2000 Camaro full chassis car. The motor makes 1100hp. The car 60fts 1.08 and will run 4.85s in the 1/8 consistently. This was on a 33 x 17 tire. I changed tires to a 33 x 10.5 W and the 60ft was the same, the car now runs 4.80s consistently. Same height tire but 5 inches less contact patch per side.
Case in point I have a 2000 Camaro full chassis car. The motor makes 1100hp. The car 60fts 1.08 and will run 4.85s in the 1/8 consistently. This was on a 33 x 17 tire. I changed tires to a 33 x 10.5 W and the 60ft was the same, the car now runs 4.80s consistently. Same height tire but 5 inches less contact patch per side.
07-21-2005, 12:03 PM
#27
Originally Posted by Fireball
they are limited to 9" tread...they are forced to use sidewalls to bandaid the smaller contact patch
So Slow: Yes they are radials.
07-21-2005, 01:06 PM
#28
Originally Posted by Stu'sWS6
I think Magnus has every right to post in your tire thread-He has posted the fastest SI timeslip and cam only timeslip-along w/ 01-Z. Not to mention this is the drag racing tech section; and he obviously has a boatload more experience working with your type of setup than you do.-No offense, but why not learn from it?
Anyways...
Try it and see what happens. I agree with the earlier post that talked about the age of the tires. You will have to change the 26x10's often to hook really well on them.
Anyways...
Try it and see what happens. I agree with the earlier post that talked about the age of the tires. You will have to change the 26x10's often to hook really well on them.
Anyways back on topic.
I will probably keep these 26's untill i run out of gear, which hopefully won't be untill i get a cam, then i'll switch to 28's.
The 26's look funny anyways since i clearenced for the wheel opening for the 31'" truck tire.
07-21-2005, 02:00 PM
#29
Originally Posted by MADMAN
The guys running mid nines and slower dont need anything bigger than a 28 tire. IF your gear ratio and suspension is right then the car will be faster with a smaller tire.
07-21-2005, 02:48 PM
#31
so the conversation has gone from tire height to contact patch? i thought were were talking 28x10 to 29-29.5/10 drag slicks?
and what does the radial construction have to do with the contact patch? i understand the difference of how the tires react to the shock. but radial construction doesnt seem to do with the tire height. if the S/E guys pushed for it, they could get a 28, 29 or 30x9 radial tire. goodyear loves them. lol
point is they chose the tall tire.
and what does the radial construction have to do with the contact patch? i understand the difference of how the tires react to the shock. but radial construction doesnt seem to do with the tire height. if the S/E guys pushed for it, they could get a 28, 29 or 30x9 radial tire. goodyear loves them. lol
point is they chose the tall tire.
07-21-2005, 07:45 PM
#33
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Originally Posted by gator's 99TA
why do the stock eliminator guys run 30x9" hooser/et drags then?
Some of us don't get to race at tracks that VHT every other pass, or even every 10 passes..
I've had the pleasure of racing a couple of times with constant VHT and my car did exceptionally well with 28x10.5" ET Drags.. It dead hooked every time and I was cutting killer 60's.. On those days, even half a revolution of tires spin was enough to lower my 1/4.
Also, what many people fail to realize is cars like mine, and 01-Z's are light weight, very light weight, and gain most of their et by the 60' alone. That is how we run our records.
01-Z and I have done a lot of tests regarding tires... and the ideal tire for our cars is larger than a 30x9 and larger than a 28x10.5 for the tracks we race at to hook consistantly.
And if you want to bring up 7 second cars SUX2BU that run on 10.5" tires.. Well, I guess you didn't say you were building a setup like theres so I guess we're all just idiots for not knowing you were building a setup that would gain ET via the last half of the track and by HP alone.
Oh, you're not doing that.. so your example is stupid. You waste time by citing stupid examples.
I'd say 01-Z and I both have at least 1000 passes on our cars each. We know what works.
If your setup is anything like ours and you race at tracks like we do, and you want to hook consistantly, 28x10.5's are not enough.
Madman, what is the track prep at the tracks you race at? You obviously seem to have great traction as you have some fast cars running some small tires.
PS. My current best 60' is 1.31
Last edited by Magnus; 07-21-2005 at 08:15 PM.
07-21-2005, 08:14 PM
#34
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The NMRA SS/O class only allows a 28x10.5. No 'W'. Those cars run in the 7.60's @ 180+ MPH with ladder-bars. Sam Vincent has been a 1.16 60' with N20 and a ladder-bar.
07-21-2005, 08:28 PM
#35
I race all over the country Magnus. I have seen the shitty tracks etc. The key is having DATA to overcome the track. You can ask NEXT, he was at the Atlanta race the track sucked. He blew the tires off 3 passes in a row. I made adjustments each pass. Well I'm sure you have seen the video, he went to the bumper. The adjustments are there for the small tires. You just need the data to run the small tires.
In truth all these cars on this board need bigger tires. That way I wouldnt have to work as hard.
In truth all these cars on this board need bigger tires. That way I wouldnt have to work as hard.
07-21-2005, 08:57 PM
#38
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Originally Posted by Magnus
I'd say 01-Z and I both have at least 1000 passes on our cars each. We know how to bandaid our cars.
07-21-2005, 09:40 PM
#39
i agree with madman and the others. If a high 9, low 10 second car cannot hook on a 28x10.5, it is problems with your suspension, not the tires. Putting bigger tires on it is in essence a bandaid for the suspension problems you are having. Fix the suspension and run a smaller tire and you will gain ET over a bogus suspension tune and big tires.
07-21-2005, 09:49 PM
#40
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Originally Posted by MADMAN
I agree on the Racepak King Crap Box. That is the end all save all, IF YOU USE THE DATA. I know you guys store every run. That is the point, if you run the car make small changes and DOCUMENT everything.
