Become a Fan!
Login
Username:

Password:

Remember Me

Lost Password?

Register now!
Main Menu
Who's Online
148 user(s) are online (129 user(s) are browsing Forums)

more...
Guru Dictionary
Print in friendly format Send this term to a friend  Shark
Any Corvette from model year 1968 to 1982 is loosely referred to as a Shark. Stemming from the Mako concepts and a general acceptance that the C3 lo...
Supporting Vendors
Platinum
Mid America Motorworks
Mid America Motorworks FREE CATALOG


Gold
FIC 770-888-1662


Registered Vendors
Guru Friends
Supporting Banners

TIRERACK.com - Revolutionizing Tire Buying


Shop for Winter Tires Now!




Support This Site
Report message:*
 

Re: 2017 Winter Upgrade/Update thread

Subject: Re: 2017 Winter Upgrade/Update thread
by rklessdriver on 2017/9/16 12:38:53

Quote:

Matatk wrote:
Will, are the carb issues all sorted out?


Matt,
While I did have one issue year before last, where moisture and evaporated fuel messed up one of my carbs....

I actually figured out the problem that I was having, right before the last race of last season. Sucks because I chased it all season and learned almost nothing about tuning the car.

Turned out to be a problem with the MSD distributor. The top plate for the advance had worked itself loose.... In a race car you remove the weights and springs, and use a little stud/nut to lock the advance out....

Well over time the vibration had loosened it up enough so that when I had the car on the 2 step it would back the timing up causing the car to stumble or backfire when I let go of the 2 step/trans brake.... or worse the car would leave on no power and then do a huge wheel stand the very next pass when I changed the tune up to compensate....

It was a seriously tough problem to find because it was so inconsistant. Sometimes the car would make a decent pass and then go to crap.... when I checked the timing it would be off in left field and othertimes it would actually move back to where I set it....

The plate was loose enough to move when up on the 2 step.... but it took alot of effort to move it by hand and even thou I checked by twisted on it and the rotor a few times I never felt it move until right before the last race.

I tightened it up, reset the timing and it was a totally new car the last time I raced it.
Will
CorvetteForum.guru is independently owned and operated. This site is not associated with or financially supported by General Motors.

Copyright 2008-2015 CorvetteForum.guru

CorvetteForum.guru is a Guru Garage Site (Coming Soon!)

If you have any questions about our site, please contact us at Andy@corvetteforum.guru.

Powered by XOOPS 2.56 Copyright 2001-2014 www.xoops.org

Hosted by GoDaddy.com.