Nitto 555R ? - ModernCamaro.com - 5th Generation Camaro Enthusiasts
1st & 2nd Generation F-Body 1967-1969 / 1970-1981 Camaro & Firebird Discussion

 
LinkBack Thread Tools
post #1 of 7 Old 10-17-2008, 10:02 AM Thread Starter
drc
 
Join Date: Feb 2008
Posts: 44
 
Nitto 555R ?

I'm going to run my '68 at the drags tonight and want to know what most people run their tire pressure at on a set of 555R's?
drc is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 10-17-2008, 12:28 PM
Moderator
 
USA1Camaro's Avatar
 
Join Date: Dec 2006
Location: Indiana
Posts: 5,229
  
Too bad you don't have a little more time to do some testing. You might have to do some experimenting. I usually start out at around 25psi on street tires and adjust from there. It takes time to find out what works for your set-up.

Have a friend video your passes. Post them up.
USA1Camaro is offline  
post #3 of 7 Old 10-18-2008, 09:09 AM Thread Starter
drc
 
Join Date: Feb 2008
Posts: 44
 
I started at 28 which is what I run on the street and it actually seemed to hook up pretty good. Then I went to 24 and it broke loose a little so I went to 18 thinking ok they are going to be soft and should hook great but, on that pass, I broke them totally loose so I'm baffled. I wasn't running much fuel at all... probably only 4 gallons on the first pass and then down from there plus I might have been stalling up a little more each time but not by much. I probably stalled at about 2000 on the last past. One thing I noticed was during my burnout the tires wouldn't produce smoke hardly at all. Are you supposed to heat these tires up or not? I just couldn't believe how bad I broke them loose when they were at 18. I wanted to keep dropping them until the rearend started feeling loose on the big end and then add just enough to take that away.
drc is offline  
 
post #4 of 7 Old 10-19-2008, 02:31 PM
Moderator
 
USA1Camaro's Avatar
 
Join Date: Dec 2006
Location: Indiana
Posts: 5,229
  
Street radials: Go around the water just clean them off. IMO no need to do a long smokey burn-out.

What were you 60' and 1/4 times for these passes?
USA1Camaro is offline  
post #5 of 7 Old 10-19-2008, 03:22 PM Thread Starter
drc
 
Join Date: Feb 2008
Posts: 44
 
On my first and best run I had a 60' time of 1.831 a 330' of 5.405 an 1/8 of [email protected] a 1000' of 11.035 and a 1/4 of [email protected] I had a shift module of 5800 in during this pass.

On my next pass I had a 60' time of 1.854 a 330' of 5.414 an 1/8 of [email protected] a 1000' of 11.046 and a 1/4 of [email protected] I had a shif module of 5400 in during this pass.

I did notice the tires chirping more on the second pass but it looks like I was making up time by shifting a little earlier but then what gets me is where I lost time from the 1/8 to 1000' mark because I was on pace to run a quicker 1/4 even though my 60' was slower by .023.

Then my last past I could really tell I broke the tires loose and my 60' was 2.189.

I wish I could come across some of my old time sheets to see what I used to run a 60' time in when I know I wasn't spinning the tires at all.
drc is offline  
post #6 of 7 Old 10-19-2008, 03:31 PM Thread Starter
drc
 
Join Date: Feb 2008
Posts: 44
 
I am right in thinking to run my tires with as little pressure as possible without getting loose on the big end right?
drc is offline  
post #7 of 7 Old 10-19-2008, 09:12 PM
Veteran Member
 
tazjetman's Avatar
 
Join Date: Sep 2006
Location: Austin, TX
Posts: 3,345
 
this makes me think....

Quote:
Originally Posted by 54inches View Post
Facebook has sucked me into Farmtown.

What can I say I love virtual plowing.
tazjetman is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the ModernCamaro.com - 5th Generation Camaro Enthusiasts forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome