Tires
05-28-04, 09:33 AM
#27
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Originally posted by cdrad51
Oh shaddap you ignorant ******
HTR 200's top pressure is 51 psi. I run it slightly under it. It is always fun to see the guys faces at Jiffy Lube
when I say to keep the pressure at 48 psi ...
Oh shaddap you ignorant ******
HTR 200's top pressure is 51 psi. I run it slightly under it. It is always fun to see the guys faces at Jiffy Lube
when I say to keep the pressure at 48 psi ...
48 PSI is too much. You want SOME sidewall flex. Running at that high of a pressure will actually give you worse handling than running at a much lower 38-40.
And just so YOU know, almost all tires have a max pressure of 51-52 psi; not just the HTR's. I know you were just being funny but you might want to gather some facts before calling people ignorant.
05-28-04, 02:36 PM
#28
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I actually prefer the grip given by 27 PSI. Yea its a little weird when the sidewall starts to flex out, but the rubber stays on the road really well. Then again, I'm just plain nuts.
05-28-04, 03:39 PM
#29
Lorem ipsum dolor sit ame
Originally posted by BrewerBob
Who's the ignorant *****? During autocrosses I set the PSI around 40 front 42 rear (on my Sentra). For track days about 38/40.
48 PSI is too much. You want SOME sidewall flex. Running at that high of a pressure will actually give you worse handling than running at a much lower 38-40.
And just so YOU know, almost all tires have a max pressure of 51-52 psi; not just the HTR's. I know you were just being funny but you might want to gather some facts before calling people ignorant.
Who's the ignorant *****? During autocrosses I set the PSI around 40 front 42 rear (on my Sentra). For track days about 38/40.
48 PSI is too much. You want SOME sidewall flex. Running at that high of a pressure will actually give you worse handling than running at a much lower 38-40.
And just so YOU know, almost all tires have a max pressure of 51-52 psi; not just the HTR's. I know you were just being funny but you might want to gather some facts before calling people ignorant.
Fact: I just went to the parking lot and looked at the tires of 7 different cars. Their top pressure was between 35 and 44 psi. So the statement that almost all tires have a max pressure of 51-52 psi is a falsehood.
And what facts do you base the statement that 48 psi will give me worse handling than 38-40? Have you tried 48 psi? I based my conclusion on the fact that higher pressure would give less sidewall flex since, and you got that right, the HTRs have a very soft one. So even with 48 psi I get SOME sidewall flex.
07-23-04, 11:57 AM
#30
I luv sheep&dead hookers
Originally Posted by cdrad51
Whatever makes you sleep at night, champ. But you said in you earlier post "there are easier ways to kill yourself!". What facts are you basing that statement on?
Fact: I just went to the parking lot and looked at the tires of 7 different cars. Their top pressure was between 35 and 44 psi. So the statement that almost all tires have a max pressure of 51-52 psi is a falsehood.
And what facts do you base the statement that 48 psi will give me worse handling than 38-40? Have you tried 48 psi? I based my conclusion on the fact that higher pressure would give less sidewall flex since, and you got that right, the HTRs have a very soft one. So even with 48 psi I get SOME sidewall flex.
Fact: I just went to the parking lot and looked at the tires of 7 different cars. Their top pressure was between 35 and 44 psi. So the statement that almost all tires have a max pressure of 51-52 psi is a falsehood.
And what facts do you base the statement that 48 psi will give me worse handling than 38-40? Have you tried 48 psi? I based my conclusion on the fact that higher pressure would give less sidewall flex since, and you got that right, the HTRs have a very soft one. So even with 48 psi I get SOME sidewall flex.
I was just messing with you since you had the little smiley on the ignorant bit.
But to anwser your questions...
All the tires I've ever bothered looking at had 51 psi on the side of the tire. These would include Goodyear (don't remember the tire), Conti Sports (stock on the Sentra), Azenis and now the Sumi as well. Everything I've looked at has an aggressive tread so perhaps it's better to say "good" go to 51 psi. Looking at Jane Doe's SUV isn't going to cut the mustard.
I would base the fact of 48 psi being too much on the results I've and many others, including national contenders, have had with tire pressure. I would doubt that many use the Sumi's. Everyone uses Kumhos, Hoosiers or Azenis. There are a few on Toyos or other brands but for the most part, K,H,A are THE best for autoxing.
Basing your facts on "less sidewall flex" alone isn't a logical statement. 150 psi will have less flex than 48 psi. Why stop at 48 psi? Using your theory more is better, you should use 5 tires. Inflate one until it literally explodes. Then inflate the other 4 to whatever that pressure is minus some small percentage. This will give you the maximum sidewall stiffness.
I'll even buy the tires for you. BUT the handling has to be better. It just isn't going to happen though. The tires become too hard and loose grip at some point. That point is going to vary based on aspect ratio, tire temp, surface temp, vehicle weight, tire manufacturer, rubber compound and probably a few other minor variables. These are the major ones.
Another thing to judge side wall flex is tread use. You want the sidewalls to flex to the very edge of where the tread ends. On most tires, the tread continues on the radius of the sidewall. Watch the scrub marks, you can tell how far the tire is rolling over by the darker rubber.
http://www.southern-shift.com/phpBB/...ghlight=azenis
Notice the line in the very top picture. For the Azenis, this is where the wear should start/stop. 48 psi in most tires is too much. The wear would end proably where the white dot is below the 39 inch (right hand top pic).
I ran in an autox on the 17th with 40 psi and the scrub marks showed that to be a little too high in the front for my 1st gen. For the rear that was about right. Now I will qualify this statement with this: I'm using stock rims. The tires are supposed to be on 6 1/2 rims (I think) but the stocks are 5 1/2". This gives the sidewall itself some "camber". On 7" rims the pressure will probably need to be adjusted again.
And lastly, yes I have run tires at 48 psi. The first time I ran a 7 at an autox, I had stock tires on it. Kelly Chargers or some other god awful tire of questionable age. With the 185/70/13's, I had the pressure jacked thru the roof. Because they were 70 series tires, I started at 50psi. By time I finished my last run, I had them at 80psi. And because you could visibly see the dry rot cracks in the tires, the shitty brand, and the worst possible size to autox on, it didn't make much difference.
Any more questions?
07-24-04, 02:16 AM
#32
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im going to post here just incase someone is still reading it and incase someone can help me out.....my rx-7 has a set of rear tires that are a 285/40zr15....these tires are extremely rare so im hoping that someone can help me out......
if u cant help me with new rubber i could really use a set of 17" rims that have the 4x110mm bolt pattern......b/c i can easily fit a set of 275/40/17's on the rear.......i need these tires asap b/c mine are goin to become unstable within the next month...so thanks everyone
if u cant help me with new rubber i could really use a set of 17" rims that have the 4x110mm bolt pattern......b/c i can easily fit a set of 275/40/17's on the rear.......i need these tires asap b/c mine are goin to become unstable within the next month...so thanks everyone
07-26-04, 11:36 PM
#34
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I have been autocrossing for over three years and right now the best bang for the buck tire is the Falken Azinis sport...period. $52ea. from Sears.
Check em out here.
http://www.falkentire.com/tires/az_rs_infopg.htm
I run these on my GSL-SE and they have "mad grip yo".
The steering response on these are incredible.
There are many superior race only tires out there but for the money none of them can compare.
Check em out here.
http://www.falkentire.com/tires/az_rs_infopg.htm
I run these on my GSL-SE and they have "mad grip yo".
The steering response on these are incredible.
There are many superior race only tires out there but for the money none of them can compare.
07-28-04, 09:40 PM
#35
I luv sheep&dead hookers
Originally Posted by elron90sc5speed
I have been autocrossing for over three years and right now the best bang for the buck tire is the Falken Azinis sport...period. $52ea. from Sears.
Check em out here.
http://www.falkentire.com/tires/az_rs_infopg.htm
I run these on my GSL-SE and they have "mad grip yo".
The steering response on these are incredible.
There are many superior race only tires out there but for the money none of them can compare.
Check em out here.
http://www.falkentire.com/tires/az_rs_infopg.htm
I run these on my GSL-SE and they have "mad grip yo".
The steering response on these are incredible.
There are many superior race only tires out there but for the money none of them can compare.
Those would be the same as Azenis??
He doesn't state what car he has but the smallest Azenis is 195/60/14. And you are getting screwed unless that price includes mount and balance.Try...
http://www.vulcantire.com/azenis_t.htm
07-29-04, 12:19 AM
#36
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If you factor in the shipping plus mounting and balancing then it is cheaper to get them from sears. Not by much abut $6 per tire cheaper from sears after shipping and I use the 195/60/r14 on my 84 GSL-SE.
07-30-04, 08:17 AM
#37
I luv sheep&dead hookers
I've been curious about the 14" Azenis. Do they truly have a 60 sidewall? Even with the stiffer Azenis sidewall I think that is too much.
The 215/50/13 Sumi's fit without scrubbing except when turning the wheel all the way to the stop. The Azenis 195 is probably close to the Sumi 215 in width. I know the 225/45/17 on my Sentra were no 225. They were a 235 or maybe even a 245 in another brand. Azenis "cheats" on their width dimensions. They do it for the STS/X guys in autoxing and it works to our advantage. I'm just wondering if the cheat on the sidewall too.
The 215/50/13 Sumi's fit without scrubbing except when turning the wheel all the way to the stop. The Azenis 195 is probably close to the Sumi 215 in width. I know the 225/45/17 on my Sentra were no 225. They were a 235 or maybe even a 245 in another brand. Azenis "cheats" on their width dimensions. They do it for the STS/X guys in autoxing and it works to our advantage. I'm just wondering if the cheat on the sidewall too.
07-30-04, 07:24 PM
#38
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Keep in mind the Azenis are a DOT legal race tire. I measured the tires on my car and the sidewall is slightly less than 50. As for the sidewalls they are so incredibally stiff that even if they were 70 series you still wouldnt have a problem with the tire rolling under. When I first got the tires. before they were mounted I tried to flex the sidewalls and was unable to do so. even with both hands.
Because the Azienis are a 200 treadwear they will still grip much better than the slightly wider sumi's. As far as an autocross/street tire you still can't beat the Azines in a bang for the buck.
If you thing you can;buy the tires you want and come autocross with me and we'll see if you can hang...I think not. PS The tires must not excede the Azenis in price per size as there are far better tires to be had for more money...much more money.
Again this isn't about ultimate performance it's about the most performance for the least amount of money and IMHO the Azenis are reigning champion... Prove me wrong and I will buy somthing else.
Keep racing guys and keep'er rubber side down.
Because the Azienis are a 200 treadwear they will still grip much better than the slightly wider sumi's. As far as an autocross/street tire you still can't beat the Azines in a bang for the buck.
If you thing you can;buy the tires you want and come autocross with me and we'll see if you can hang...I think not.
PS The tires must not excede the Azenis in price per size as there are far better tires to be had for more money...much more money. Again this isn't about ultimate performance it's about the most performance for the least amount of money and IMHO the Azenis are reigning champion... Prove me wrong and I will buy somthing else.
Keep racing guys and keep'er rubber side down.
07-30-04, 09:20 PM
#39
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Originally Posted by BrewerBob
I was just messing with you since you had the little smiley on the ignorant bit.
But to anwser your questions...
All the tires I've ever bothered looking at had 51 psi on the side of the tire. These would include Goodyear (don't remember the tire), Conti Sports (stock on the Sentra), Azenis and now the Sumi as well. Everything I've looked at has an aggressive tread so perhaps it's better to say "good" go to 51 psi. Looking at Jane Doe's SUV isn't going to cut the mustard.
I would base the fact of 48 psi being too much on the results I've and many others, including national contenders, have had with tire pressure. I would doubt that many use the Sumi's. Everyone uses Kumhos, Hoosiers or Azenis. There are a few on Toyos or other brands but for the most part, K,H,A are THE best for autoxing.
Basing your facts on "less sidewall flex" alone isn't a logical statement. 150 psi will have less flex than 48 psi. Why stop at 48 psi? Using your theory more is better, you should use 5 tires. Inflate one until it literally explodes. Then inflate the other 4 to whatever that pressure is minus some small percentage. This will give you the maximum sidewall stiffness.
I'll even buy the tires for you. BUT the handling has to be better. It just isn't going to happen though. The tires become too hard and loose grip at some point. That point is going to vary based on aspect ratio, tire temp, surface temp, vehicle weight, tire manufacturer, rubber compound and probably a few other minor variables. These are the major ones.
Another thing to judge side wall flex is tread use. You want the sidewalls to flex to the very edge of where the tread ends. On most tires, the tread continues on the radius of the sidewall. Watch the scrub marks, you can tell how far the tire is rolling over by the darker rubber.
http://www.southern-shift.com/phpBB/...ghlight=azenis
Notice the line in the very top picture. For the Azenis, this is where the wear should start/stop. 48 psi in most tires is too much. The wear would end proably where the white dot is below the 39 inch (right hand top pic).
I ran in an autox on the 17th with 40 psi and the scrub marks showed that to be a little too high in the front for my 1st gen. For the rear that was about right. Now I will qualify this statement with this: I'm using stock rims. The tires are supposed to be on 6 1/2 rims (I think) but the stocks are 5 1/2". This gives the sidewall itself some "camber". On 7" rims the pressure will probably need to be adjusted again.
And lastly, yes I have run tires at 48 psi. The first time I ran a 7 at an autox, I had stock tires on it. Kelly Chargers or some other god awful tire of questionable age. With the 185/70/13's, I had the pressure jacked thru the roof. Because they were 70 series tires, I started at 50psi. By time I finished my last run, I had them at 80psi. And because you could visibly see the dry rot cracks in the tires, the shitty brand, and the worst possible size to autox on, it didn't make much difference.
Any more questions?
But to anwser your questions...
All the tires I've ever bothered looking at had 51 psi on the side of the tire. These would include Goodyear (don't remember the tire), Conti Sports (stock on the Sentra), Azenis and now the Sumi as well. Everything I've looked at has an aggressive tread so perhaps it's better to say "good" go to 51 psi. Looking at Jane Doe's SUV isn't going to cut the mustard.
I would base the fact of 48 psi being too much on the results I've and many others, including national contenders, have had with tire pressure. I would doubt that many use the Sumi's. Everyone uses Kumhos, Hoosiers or Azenis. There are a few on Toyos or other brands but for the most part, K,H,A are THE best for autoxing.
Basing your facts on "less sidewall flex" alone isn't a logical statement. 150 psi will have less flex than 48 psi. Why stop at 48 psi? Using your theory more is better, you should use 5 tires. Inflate one until it literally explodes. Then inflate the other 4 to whatever that pressure is minus some small percentage. This will give you the maximum sidewall stiffness.
I'll even buy the tires for you. BUT the handling has to be better. It just isn't going to happen though. The tires become too hard and loose grip at some point. That point is going to vary based on aspect ratio, tire temp, surface temp, vehicle weight, tire manufacturer, rubber compound and probably a few other minor variables. These are the major ones.
Another thing to judge side wall flex is tread use. You want the sidewalls to flex to the very edge of where the tread ends. On most tires, the tread continues on the radius of the sidewall. Watch the scrub marks, you can tell how far the tire is rolling over by the darker rubber.
http://www.southern-shift.com/phpBB/...ghlight=azenis
Notice the line in the very top picture. For the Azenis, this is where the wear should start/stop. 48 psi in most tires is too much. The wear would end proably where the white dot is below the 39 inch (right hand top pic).
I ran in an autox on the 17th with 40 psi and the scrub marks showed that to be a little too high in the front for my 1st gen. For the rear that was about right. Now I will qualify this statement with this: I'm using stock rims. The tires are supposed to be on 6 1/2 rims (I think) but the stocks are 5 1/2". This gives the sidewall itself some "camber". On 7" rims the pressure will probably need to be adjusted again.
And lastly, yes I have run tires at 48 psi. The first time I ran a 7 at an autox, I had stock tires on it. Kelly Chargers or some other god awful tire of questionable age. With the 185/70/13's, I had the pressure jacked thru the roof. Because they were 70 series tires, I started at 50psi. By time I finished my last run, I had them at 80psi. And because you could visibly see the dry rot cracks in the tires, the shitty brand, and the worst possible size to autox on, it didn't make much difference.
Any more questions?
07-30-04, 09:32 PM
#40
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I think the choices of tires in the US stink for imports. I ordered a set of Bridgestone Potenza GRID III from Japan: 225/50/15 rear and 205/50/15 front.
These have 50K mile tread life and they get sticky as heck on the track. Great wet and dry traction. If you get these heat cycled tread life is @20K miles
http://page3.auctions.yahoo.co.jp/jp/auction/c49392088
These kick ***
Best circuit tires in Japan, they just hit the JDM market -- The US will see them sometime in the year 2020 when they are obsolete in Japan
http://page2.auctions.yahoo.co.jp/jp/auction/b53516373
Thinking about the ADVAN road race tires:
http://page8.auctions.yahoo.co.jp/jp/auction/h11914841
I heard these are pretty slick tires too:
http://page8.auctions.yahoo.co.jp/jp/auction/h15252962
These have 50K mile tread life and they get sticky as heck on the track. Great wet and dry traction. If you get these heat cycled tread life is @20K miles
http://page3.auctions.yahoo.co.jp/jp/auction/c49392088
These kick ***
Best circuit tires in Japan, they just hit the JDM market -- The US will see them sometime in the year 2020 when they are obsolete in Japan
http://page2.auctions.yahoo.co.jp/jp/auction/b53516373
Thinking about the ADVAN road race tires:
http://page8.auctions.yahoo.co.jp/jp/auction/h11914841
I heard these are pretty slick tires too:
http://page8.auctions.yahoo.co.jp/jp/auction/h15252962
08-01-04, 11:09 AM
#41
I luv sheep&dead hookers
Originally Posted by elron90sc5speed
If you thing you can;buy the tires you want and come autocross with me and we'll see if you can hang...I think not. PS The tires must not excede the Azenis in price per size as there are far better tires to be had for more money...much more money. .
PS The tires must not excede the Azenis in price per size as there are far better tires to be had for more money...much more money. .$120 for a 225/45/17 I didn't check any of the 13".
08-03-04, 10:18 PM
#43
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ive been away from this thread for some time but ill give the reason that my rear tires are soo wide...i have a rare gto widebody kit that has massivly large rear end fender flares.....if i dont go with a wide tire the entire *** end of the car will be off balanced and will handle like ****.......i would really like to get a set of 17's all around the car but if i have to stick with 15's does anybody know if a 275/50/15 will fit on my rims.....
thanks a lot for giving me ur opinions and what to do......Parker
thanks a lot for giving me ur opinions and what to do......Parker
