Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum upgrade!
It is currently Fri Dec 15, 2017 9:30 pm

All times are UTC-08:00




Post new topic  Reply to topic  [ 20 posts ]  Go to page 1 2 Next
Author Message
 Post subject: Tire choice
PostPosted: Tue Dec 05, 2017 4:40 pm 
Offline
Board Sponsor

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 4840
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
I have been running Nitto Extreme Drag radials on the race car for the last 4 years and they have performed well. I am running 275/50-15's and they are now in need of replacing. For years Mickey Thompson's ET streets were the ticket and I thought I would go with them since I wanted to step up to a little larger tire. They made a 295/55 tire that I planned to get. But then I saw that in the past couple years they have changed the tread pattern to the ET Street S/S. For what ever reason it just doesn't look as good to me with an additional thread groove down the middle. It looks like they would give up some traction. But does anyone know if they are still the way to go. The other option I was looking at was the Hoosier DOT Drag Radial which looks much better but I know nothing about them. I want to stay with the DOT tires and not a pure slick. If you have any info I'd appreciate it!

Rick

_________________
2 Mopars come with Spark plug tubes. One is a highly refined, record setting, world class, racing machine. The other is a 426 CI. boat anchor!
]Image


Top
   
 Post subject: Re: Tire choice
PostPosted: Tue Dec 05, 2017 5:18 pm 
Offline
Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 22673
Location: North America
Car Model*:
Rick Covalt wrote:
I have been running Nitto Extreme Drag radials


Damn. You had to go and say that. Now I have to post this:

https://www.youtube.com/embed/FliCLqOjBqk

Sorry, dude. You left me no choice. :lol:

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

Image


Top
   
 Post subject: Re: Tire choice
PostPosted: Tue Dec 05, 2017 6:11 pm 
Offline
Board Sponsor

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 4840
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Quote:
Sorry, dude. You left me no choice


That was pretty funny! :D Maybe he just had toooooo much traction.

_________________
2 Mopars come with Spark plug tubes. One is a highly refined, record setting, world class, racing machine. The other is a 426 CI. boat anchor!

]Image


Top
   
 Post subject: Re: Tire choice
PostPosted: Tue Dec 05, 2017 9:36 pm 
Offline
Board Sponsor & Moderator
User avatar

Joined: Thu Oct 17, 2002 7:27 pm
Posts: 10982
Location: Park Forest, Illinoisy
Car Model*:
Suck it up and put a real slick on it tough guy. :lol:

I ran ET Streets on the red car all the way to 12.0's. Mine were 8.5X26. The newer ones with a groove in them will probably work just as well. You ain't making that much powah yet. :shock:

_________________
Proud supporter of Mike Jeffrey Racing Engines since 1999.


Top
   
 Post subject: Re: Tire choice
PostPosted: Tue Dec 05, 2017 10:14 pm 
Offline
Board Sponsor

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 4840
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Quote:
You ain't making that much powah yet


750 at the rear tires! :D

_________________
2 Mopars come with Spark plug tubes. One is a highly refined, record setting, world class, racing machine. The other is a 426 CI. boat anchor!

]Image


Top
   
 Post subject: Re: Tire choice
PostPosted: Wed Dec 06, 2017 12:36 am 
Offline
Supercharged

Joined: Thu May 12, 2005 11:50 pm
Posts: 5701
Location: So California
Car Model*: 64 Plymouth Valiant
750 GP

(gerbil power)

:twisted:

_________________
Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes
Image


Top
   
 Post subject: Re: Tire choice
PostPosted: Wed Dec 06, 2017 2:59 am 
Offline
Board Sponsor

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 4840
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
:D :D :D

I run DOT's so I can go to the Street night races if I want to, without changing tires. I'm Lazy!

_________________
2 Mopars come with Spark plug tubes. One is a highly refined, record setting, world class, racing machine. The other is a 426 CI. boat anchor!

]Image


Top
   
 Post subject: Re: Tire choice
PostPosted: Wed Dec 06, 2017 4:27 am 
Offline
SL6 Racer & Moderator
User avatar

Joined: Sat Oct 19, 2002 12:06 pm
Posts: 6468
Location: Silver Springs, Fl.
Car Model*:
Rick Covalt wrote:
:D :D :D

I run DOT's so I can go to the Street night races if I want to, without changing tires. I'm Lazy!


Tha's not lazy, that's being energy efficient

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 225 nitrous
64 Valiant Signet
64 Valiant 4dr 170


Top
   
 Post subject: Re: Tire choice
PostPosted: Wed Dec 06, 2017 7:53 am 
Offline
Board Sponsor & Moderator
User avatar

Joined: Mon Oct 21, 2002 11:08 am
Posts: 11579
Location: Blacksburg, VA
Car Model*:
Rick,

Are you saying you are losing traction with the old Nittos? That is a fairly big tire already for the HP you are making. What pressure do you run?

Nice youtube, Dan. Priceles...

The Hoosier DOT radials look good to me, and I will likely try those next. I have 235/60-15 Goodyear drag radials on the turbo car (2011 vintage) and those still hook well on the track, but not so great on the street (at 15 psi boost and 18 psi in the tires). I will be minitubbing that car this winter and getting some 275 or wider tires.

Smoke 'em if ya got 'em...

Lou

_________________
"You mean you still have a Slant 6 in that thing?"


Top
   
 Post subject: Re: Tire choice
PostPosted: Thu Dec 07, 2017 6:06 pm 
Offline
Board Sponsor

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 4840
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Quote:
Are you saying you are losing traction with the old Nittos? That is a fairly big tire already for the HP you are making. What pressure do you run?


Running @ 20# most of the time. 18# was lowest I think.

Nittos are about worn out, and I will need some new tires soon. They may have a little more life in them, but not a whole lot.

As for traction, I have lost a slight amount of traction several times. Each time I felt that I had slipped a little my 60' times backed me up. At Wilkesboro this year I made a bunch of runs and on at least 2 of them my 60' times dropped from a 1.80-1.82 to a 1.85-1.86. I know that is not much but it told me my "feeling" was correct.

I do know, if I don't heat them well, they do not bite. I always thought drag radials were not supposed to be heated quite as much as a slick. Maybe I need could go a little lower on tire pressure? What is the bottom on tire pressure?

One other thing that I am pondering is that the 1st Big bore motor I built had a better 60' time than my current motor with bigger cam, more compression and Jeffrey head? Not sure why. I'd have to look but I think it was around 1.78 60'. This motor has run .4 faster and a couple MPH faster but not 60's
Car has same suspension, transmission and Rear end (4.56) and Carburetion. I am not worried about this just wondering.

Probably will go with the Mickey's! And the bigger tires cost about the same and shouldn't hurt traction.

Thanks,
Rick

_________________
2 Mopars come with Spark plug tubes. One is a highly refined, record setting, world class, racing machine. The other is a 426 CI. boat anchor!

]Image


Top
   
 Post subject: Re: Tire choice
PostPosted: Sat Dec 09, 2017 11:06 am 
Offline
Board Sponsor

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 4840
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Quote:
Maybe I need could go a little lower on tire pressure? What is the bottom on tire pressure?


?? 16#, 14# I am sure you reach a point of diminishing return.

_________________
2 Mopars come with Spark plug tubes. One is a highly refined, record setting, world class, racing machine. The other is a 426 CI. boat anchor!

]Image


Top
   
 Post subject: Re: Tire choice
PostPosted: Sat Dec 09, 2017 10:57 pm 
Offline
Board Sponsor & Moderator
User avatar

Joined: Thu Oct 17, 2002 7:27 pm
Posts: 10982
Location: Park Forest, Illinoisy
Car Model*:
DOT tires usually want more air, not less.

On your missing 60', did you change your converter or are you still using the same one?

_________________
Proud supporter of Mike Jeffrey Racing Engines since 1999.


Top
   
 Post subject: Re: Tire choice
PostPosted: Sun Dec 10, 2017 4:31 am 
Offline
Board Sponsor

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 4840
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Same convertor

I did look back at my times with the other motor and I only have written down a 1.86 60' time with the 3.91's. I don't have 60' with the 4.56's in the car written down.


Went back and found this from 2013
Quote:
Also kind of hard to tell if the 4.56's helped or not. I did pick up 2 MPH in the 1/8, but the 60's were not any better. The ET was close to the same as with the 3.91's at Mason Dixon


So I guess my 1.81 60' are better and my memory just stinks!! Guess that falls into the category of I know I was faster than I really was! :D :D Old age is great.

_________________
2 Mopars come with Spark plug tubes. One is a highly refined, record setting, world class, racing machine. The other is a 426 CI. boat anchor!

]Image


Top
   
 Post subject: Re: Tire choice
PostPosted: Sun Dec 10, 2017 8:48 am 
Offline
Board Sponsor & Moderator
User avatar

Joined: Thu Oct 17, 2002 7:27 pm
Posts: 10982
Location: Park Forest, Illinoisy
Car Model*:
"The older I get the faster I was". :lol: :lol: :lol: :lol: :lol: :lol:

_________________
Proud supporter of Mike Jeffrey Racing Engines since 1999.


Top
   
 Post subject: Re: Tire choice
PostPosted: Sun Dec 10, 2017 10:19 am 
Offline
Board Sponsor

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 4840
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Exactly!! :D :D

_________________
2 Mopars come with Spark plug tubes. One is a highly refined, record setting, world class, racing machine. The other is a 426 CI. boat anchor!

]Image


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 20 posts ]  Go to page 1 2 Next

All times are UTC-08:00


Who is online

Users browsing this forum: Bing [Bot] and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited