Drag Racing Tech
Sponsored by:
Sponsored by:

Based on my graph, where to shift at?

Thread Tools
 
Search this Thread
 
Old Jul 9, 2005 | 09:26 AM
  #1  
Red99TA's Avatar
Thread Starter
TECH Addict
20 Year Member
iTrader: (11)
 
Joined: Oct 2003
Posts: 2,442
Likes: 6
From: Topeka, KS
Default Based on my graph, where to shift at?

I think I screwed up when I had my rev limiter set at 6500 rpm. My dyno graph shows power climbing all the way to 6500 where it peaks or maybe just past that at 6600. Not real sure b/c my damn graph ends at 6500!. Anyways, what should I have my rev limiter set at to minimize my ETs? My shift light is set at 6400 and I figure by the time I actually shift I'm at 6500. How much time/mph do you guys think I'm losing by not shifting higher?
Reply
Old Jul 9, 2005 | 09:51 AM
  #2  
SLowETz's Avatar
10 Second Club
iTrader: (12)
 
Joined: Nov 2001
Posts: 2,356
Likes: 2
From: Padded cell
Default

Rev limiter set at 400 above peak power.... shift light set at 200 below peak power here. By the time I shift into the next gear, I'm still in the meat of the power band.

There are other schools of thought on where to shift. Your results may vary.
Reply
Old Jul 9, 2005 | 10:26 AM
  #3  
gator's 99TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Nov 2001
Posts: 9,971
Likes: 2
From: Tampa Bay
Default

my power peaks at 6500. i shift at 6900 and limitor at 7K (auto car). i would shift it minimum of 6700 with your setup and keep the risk of breaking the motor low.
Reply
Old Jul 10, 2005 | 02:48 PM
  #4  
krexken's Avatar
Launching!
 
Joined: Jun 2005
Posts: 202
Likes: 0
From: longview, tx
Default

I agree with the above post and would add that I like to experiment with shift points after I have the car sorted out initially. I usually like to save a litte et for "just in case".
Reply
Old Jul 10, 2005 | 03:03 PM
  #5  
Red99TA's Avatar
Thread Starter
TECH Addict
20 Year Member
iTrader: (11)
 
Joined: Oct 2003
Posts: 2,442
Likes: 6
From: Topeka, KS
Default

thanks guys,
I think I'll reset it to 6800 and then try shifting around 6700 and see how that works out. I definitely don't want to risk damaging the motor although I do have $$ in case that happens but I was hoping that money would go to a 12-bolt whenever the stocker blows up. How much mph/et do you think I should gain in the 1/8th w/ the higher shifting?
Reply




All times are GMT -5. The time now is 08:38 AM.

story-0
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-1
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-2
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-3
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-4
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-5
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-6
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-7
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-8
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-9
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE