TexasSnake
Enthusiast
Do you lose some traction when going from a 19 inch rim to a 20 inch rim on the rear?
Traction poll...
- Thread starter TexasSnake
- Start date
2MANYTOYS
Enthusiast
I lose traction no matter what size.
ILLSMOQ
Enthusiast
depends on the tires you run
the 335/30/20 ps2 will stick better than the 19" version
but the hoosiers or most of the other 19" track tires will stick even better than that 20" ps2
the 335/30/20 ps2 will stick better than the 19" version
but the hoosiers or most of the other 19" track tires will stick even better than that 20" ps2
I dont think traction really is a variable of the size of the rim. It is dependent on the tires your run. There are more available tire options in 19 then 20 but the 20 tires options work well.
Going from the stock runflat 19 setup to a non runflat 20, there is a vast improvement which is even more amplified with a lighter wheel/tire package.
Going from the stock runflat 19 setup to a non runflat 20, there is a vast improvement which is even more amplified with a lighter wheel/tire package.
2MANYTOYS
Enthusiast
mjorgensen Woodhouse
Enthusiast
The flexibility of the sidewall will help traction and generally speaking if you increase rim size you will be decreasing sidewall height. A stiffer shorter sidewall will help cornering response but I would say that like tires in the two sizes the smaller the better.
Mopar Boy
Enthusiast
Mark is correct. You will have better performance with a smaller rim.
In a nutshell, the smaller the rotating mass, the better performance you will get. Yes you will have a shorter sidewall by going to a smaller rim, but overall diameter will still increase.
My guess would be more traction as it is harder to spin the tires due to more rotating mass.
Robert
In a nutshell, the smaller the rotating mass, the better performance you will get. Yes you will have a shorter sidewall by going to a smaller rim, but overall diameter will still increase.
My guess would be more traction as it is harder to spin the tires due to more rotating mass.
Robert
You are making incorrect assumptons. My rear 20 inch setup is roughly 3/8 shorter than the 19 inch setup. Secondly, you cant just assume the 20 inch rim and tire weighs more. My HRE rear 20 setup weights roughly 12-15 less than the stock setup.
Do yourself a favor a try to pick up a stock rim/tire. I think it is over 60lbs.
Do yourself a favor a try to pick up a stock rim/tire. I think it is over 60lbs.
Mopar Boy
Enthusiast
I stand corrected!!
Now I am confused!
My car sits WAY higher with the 20" than it did with the stock tires and my side wall did go down in profile (I now have a 25) from the stock tires.As for the rotating mass, I changed tires on a buddies Ram, we went from 17" to 22", and the new rims are lighter by a few pounds, but now the truck just lugs and can barelly get up to speed decently. We put the other rims back on and we can do burnouts again!
Sorry for passing out bad info I was just going off of MY experiences.. I am obviously confused and not fully understanding!
Robert
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the more sidewall you have,the better traction,you dont see top fuel guys running low profile.think about this,you have to have some flex in the sidewall to get ample traction,its all about how much and what kind of traction you want to determine what tire size and weight!
POTENTIAL TRACTION is at question here.
If you drive sedately, it makes NO difference. Your traction will be unaffected.
If you are on a skid-pad, seeking the limits of adhesion-friction-traction.....
same tires, 18 vs 19 vs 20", the 20" will break free first...the 18 will break last.
If you drive sedately, it makes NO difference. Your traction will be unaffected.
If you are on a skid-pad, seeking the limits of adhesion-friction-traction.....
same tires, 18 vs 19 vs 20", the 20" will break free first...the 18 will break last.
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Jon and Mark are correct as usual.
I run sticky 18's with light wheels on the rear of my Vipers. You will need Motons or some other lowering system.
Sticky 18's tend to "stick" better than sticky 19's or 20's.
Dan
I run sticky 18's with light wheels on the rear of my Vipers. You will need Motons or some other lowering system.
Sticky 18's tend to "stick" better than sticky 19's or 20's.
Dan
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The reasons a topfuel dragster run large diameter slicks has nothing to do with this debate. The slicks wrinkle to give on takeoff. No way that is happening with a 30 profile stock 19 tire.
For those that talk about the affects of the shorter sidewall, I can assure you that a 20 inch non run flat is still better. Remember the stock runflat sidewall is extremely stiff in order to be able to RUN FLAT. My experience is that the 20 inch is still more compliant and handles better in all circumstances.
For those that talk about the affects of the shorter sidewall, I can assure you that a 20 inch non run flat is still better. Remember the stock runflat sidewall is extremely stiff in order to be able to RUN FLAT. My experience is that the 20 inch is still more compliant and handles better in all circumstances.
the more sidewall you have,the better traction,you dont see top fuel guys running low profile.think about this,you have to have some flex in the sidewall to get ample traction,its all about how much and what kind of traction you want to determine what tire size and weight!
TexasSnake
Enthusiast
I can see this is not an easy one to answer. I would imagine by the responses that if there is a difference, there isn't much in terms of traction. The 20's look a hell of a lot better (personal opinion) so I hope something can be worked out as I have already ordered the 19's. If anyone is looking for a good deal on some 18/19 HRE 897R's in chrome (with the hidden hardware), PM me as I have some brand new ones I have not even received yet but am expecting them within a week or so. I would rather go with the 19/20 setup and only wish I would have done more research in the beginning before deciding.
Thanks
Thanks
ulllose
Viper Owner
Ouch,,,,,,,Can't stop that order with HRE? I would call them and see what they could do for you.
TexasSnake
Enthusiast
I already did and they said the wheels are made. It only took them a week to make. Supposedly they were being sent off to chrome yesterday or today.
Chuck 98 RT/10
Enthusiast
Traction in a straight line and traction in a corner are two different things. Which are you trying to do?
SnakeEye
Viper Owner
19/20's ... not the way to go performance wise. Motons and lower your car ... stock sizes will look mighty fine with HRE bling and their comp wheels will perform even better.
TexasSnake
Enthusiast
Traction in a straight line.
Chuck 98 RT/10
Enthusiast
Then aside from compound, contact patch is all that matters. If a tall sidewall with low air pressure creates a greater contact area than a lower profile taller tire, then the tall sidewall tire is typically the way to go.
I disagree.....its pretty black and white.
You MUST REMEMBER that your sidewalls are a large part of your suspension-handling-traction package. So is the contact patch.
Generally, the more you have of either, the better your traction.
Other factors like aerodynamics (skinnies) and weight (skinnies, wheels, tires) play a huge role as well.....
"LOOKS COOLER......RUNS SLOWER"
TexasSnake
Enthusiast
Yeah, but if he would have had 19's he would have shaved .2 of his time...LOL
The bottom line is I reacted too quickly on the advice of others. Even if you do lose an insignificant amount of traction the looks are worth it to me. Oh well, I'll still enjoy the hell out of the rims if they don't sell and I'm stuck with some measily 19 inch HRE top of the line rims
