ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 02-06-2018   #11
tf95ZR1
 
tf95ZR1's Avatar
 
Join Date: Aug 2005
Location: Northridge, CA
Posts: 1,461
Default Re: When to shift/set shift light?

https://www.corvetteforum.com/forums...lleration.html

Thoughts from 2003

Last edited by tf95ZR1; 02-06-2018 at 09:17 PM. Reason: Wanted 2
tf95ZR1 is offline   Reply With Quote
Old 02-07-2018   #12
efnfast
 
Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,486
Default Re: When to shift/set shift light?

I would think you want to shift a couple hundred after max hp, so you land a couple hundred below. Making your average......max hp.
efnfast is offline   Reply With Quote
Old 02-07-2018   #13
Paul Workman
 
Paul Workman's Avatar
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
Default Re: When to shift/set shift light?

Quote:
Originally Posted by efnfast View Post
I would think you want to shift a couple hundred after max hp, so you land a couple hundred below. Making your average......max hp.
The graph is a little "busy", but it bears you out. Essentially, what the graph shows is the "ideal" shift point is where waning engine power before the shift is equal to the ascending engine power after the up shift. Thus the average engine POWER is highest.

My shift light is set at 7100, but no doubt my actual shitfs occur prolly closer to 7300+ by the time I can watch the road and react. So, in order to up-shift closer to 7100, as others have said too, I prolly need to reset the light for 65-68 hundred RPM to allow for reaction time - especially in 1st gear; where things get pretty busy pretty quick!
__________________
Good carz, good food, good friendz = the best of timez!

90 #1202
"FBI" top end ported & relieved
Cam timing by "Pete the Greek"
Sans secondaries
Chip & dyno tuning by Haibeck Automotive
SW headers, X-pipe, MF muffs

Former Secretary, ZR-1 Net Registry
Paul Workman is offline   Reply With Quote
Old 02-07-2018   #14
efnfast
 
Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,486
Default Re: When to shift/set shift light?

Wow, my peak power was about 6700 rpm, so shift at 7, drop to 64 or 65
efnfast is offline   Reply With Quote
Old 02-07-2018   #15
We Gone
 
Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,170
Default Re: When to shift/set shift light?

Mine is right at 7000rpms also
__________________
Steve



1990 Steel Blue/Black #2355
1990 Red/Red #1473
1991 Quasar /Black #118 Sold
1991 Turquoise/Black #766 Parted Out
1993 Yellow/White #179 Sold
1990 Black/Gray #1361 Headers/4:10s Sold
We Gone is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 08:38 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020