Become a Fan!
Login
Username:

Password:

Remember Me

Lost Password?

Register now!
Main Menu
Who's Online
333 user(s) are online (273 user(s) are browsing Forums)

more...
Guru Dictionary
Print in friendly format Send this term to a friend  ALDC
Assembly Line Diagnostic Connection

The connection to the ECM/PCM of a computer controlled vehicle, in the case of the C4 Corvette, located under ...
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: Track results, AFR heads

Subject: Re: Track results, AFR heads
by BeachBum on 2009/9/8 16:42:04

Quote:

dan0617 wrote:
If I was a bettin man, I'd wager anyone that the next time out he will be 2-3 mph faster than his fastest pass yet. I was puzzled until I realized the short times were from bogging, not spinning. Now I'm 100% sure the 1/4 mile ET and MPH will be better once dialed in. This is one of those things where it won't show on a dyno but real world results tell you where work needs done.


I think Josh did better than we know on that pass..... once past the 60 ft time, the new set-up gained hard at every increment. 6 hundredths from 60 ft to 330 ft, 4 hundredths from 330 ft to 660 ft and 5 hundredths from 660-1320.... and yet had a lower MPH, which is hard to do.....

Its hard to gain et on a car in the 2nd half of the track, but yet run a slower mph.....it actually doesn't add-up, on my simulator, if you gain 1/2 tenth in the 2nd half of the track at 120 mph, (8.8 feet), that means you averaged apprxomiately 1.5 mph faster in that same distance... and yet his MPH is lower on the slip. Which can only mean, either the MPH timers gave a false number, or he let off the gas before the back stripe or at very end of the track detonation or fuel pressure dipped right before the end.

Your timeslip MPH is the average MPH you ran in the last 66 ft of the track. Typically a car like Joshs is entering the 66 ft timers at 118, exiting at 120, thus will have a 119.0 mph on the slip. If there is a dip anywhere in their, the MPH will of course drop..... basic mathematics tells us this happened based upon the time he covered that distance per the timeslip. The 1000 ft et would have given us a better indication of how hard it dropped that last 320 ft. But who knows....
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.