CLASS RACER FORUM
Page 3 of 5 12 3 45
Show 40 post(s) from this thread on one page

CLASS RACER FORUM (https://classracer.com/classforum/index.php)
-   Stock and Super Stock (https://classracer.com/classforum/forumdisplay.php?f=3)
-   -   Front tire pressure adjustments (https://classracer.com/classforum/showthread.php?t=69913)

jmcarter 05-17-2018 09:30 AM
Re: Front tire pressure adjustments
 
What’s the best source for a brake pressure switch? I’ve also avoided a button on the brake petal, just another thing to put in the starting line procedure.

Kdw1403 05-17-2018 09:33 AM
Re: Front tire pressure adjustments
 
Sorry but I do not have a brake pressure gauge. Sounds like I need to install one. My car is fuel injected. Will I need to change my tune up while I am on the 2 step. My car work really good running off the foot brake. Im very new to stock and the fuel injection game. Thanks.

rboyle 05-17-2018 10:04 AM
Re: Front tire pressure adjustments
 
Quote:
Originally Posted by Eric Merryfield (Post 563324)
You have some good suggestions here.

Just to complete the logic circle, you do have a brake pressure gauge in the car and know what brake pressure you are staging at correct? Don't have time to look, etc, get a go pro and video the gauge. If your not consistent with that then there you go.

Two step, could help, depends on your carb and how it works when floored, you may also want to upgrade to a brake pressure switch, instead of the brake pedal piece.

Log books should give you a clue too. Time trials versus competition etc.

Change one thing at a time.

Eric
What benefit is there to the brake pressure switch over the brake pedal switch two step? Thanks for the help in advance.

Dave Gantz 05-17-2018 10:37 AM
Re: Front tire pressure adjustments
 
Do you use a practice tree? I found that it helped me narrow down the range of the lights I was cutting. Then I was able to zero in on when to leave.

Of course, if they eliminated reaction time, none of this would matter. :-)

Bobby DiDomenico 05-17-2018 10:52 AM
Re: Front tire pressure adjustments
 
Quote:
Originally Posted by rboyle (Post 563331)
What benefit is there to the brake pressure switch over the brake pedal switch two step? Thanks for the help in advance.
At the least it would require the same brake line pressure each time you stage. Eliminates a variable.

rboyle 05-17-2018 10:58 AM
Re: Front tire pressure adjustments
 
Quote:
Originally Posted by Bobby DiDomenico (Post 563334)
At the least it would require the same brake line pressure each time you stage. Eliminates a variable.
So then you prestage bump in and check brake pressure then look at the tree and get on the two step? I don’t mean to sound synical, just want to make sure of the process and if this would help me

tony wood 05-17-2018 11:16 AM
Re: Front tire pressure adjustments
 
ok this is gonna sound stupid but try ankle weights used them on my stick super stocker was going 10-15 red try 5pd weight

Eric Merryfield 05-17-2018 11:31 AM
Re: Front tire pressure adjustments
 
Quote:
Originally Posted by rboyle (Post 563335)
So then you prestage bump in and check brake pressure then look at the tree and get on the two step? I don’t mean to sound synical, just want to make sure of the process and if this would help me
You can microadjust the brake pressure switch to release at a higher or lower pressure as your needs and car may like.

Everyones staging method is different, I don't look at the gauge, I listen for the two step if I am running it. My dakota fuel injected two step process is totally different than the footbrake gremlin(I don't run the pressure switch two step on it, just a gauge)

Two step is just faster for some cars/trucks. I like footbraking more.

Even better is a stick, now that is where the fun factor really comes in, lots of variables you can tweak to adjust RT, but don't ask me specifics, I'm a novice.

Eric

Mike Gray 05-17-2018 01:06 PM
Re: Front tire pressure adjustments
 
Quote:
Originally Posted by Mark Yacavone (Post 563313)
Okay, if you're not blocking or blinding, let's leave that for another day.
Now, by your own description, you're swinging across .000 by about 35 thou.
So let's say you slow your vehicle reaction down .035. Your - .020 now becomes a +.015
Great.
But what happens when you hit what used to be a +.015? It now becomes a + .050.
Not going to win too many that way either.
My friend, I think you need to work on something other than the car right now.
Just my opinion. I don't consider myself to be a bracket racer. I did win a couple of track championships, but I think I'll let the experts take it from here.
Later ,we can get back to the technical items.

Good advise here. Your car if set up the same each run is going to react in just about the same amount of time each run, the variable is the driver. I worked my super gas car down to decent repeatable lights on a Pro tree. I then ran it in super street and was consistently early. (I needed to adjust the car to the slower light) That was accomplished with making changes to the car. Then I went and ran some full tree classes and I was all over the place. The car was still the same and I knew it could cut decent lights on either Pro tree. The difference in the full tree races was squarely with the driver, me. I needed to find a way for the driver to be better at reacting to the full tree, blocking or leaving on the top bulb are some of the ways to accomplish that.

superstock45 05-17-2018 02:27 PM
Re: Front tire pressure adjustments
 
Drop front to 17psi


All times are GMT -4. The time now is 03:49 AM.
Page 3 of 5 12 3 45
Show 40 post(s) from this thread on one page

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.