Timing? Tuning?
Thread Starter
TECH Fanatic
Joined: Oct 2011
Posts: 1,356
Likes: 2
From: Felton Pa
Timing? Tuning? I am trying to learn some things about tuning on my Chevelle. I was wondering what you guys with stock engines with turbos are running for "Hi Octane" timing tables. My car seems to be sluggish off the line and I am wondering if adding some timing to the lower end of the table would help?
Thread Starter
TECH Fanatic
Joined: Oct 2011
Posts: 1,356
Likes: 2
From: Felton Pa
I added a couple degrees of timing below 3200rpm and logged a pass through first and second. I lifted as I shifted into third. I'm trying to get the car to make some low end to make up for turbo lag.
What effect did the timing bump have on accelleration? At work and cant open the scan. Take this with a grain of salt, because I am new to tuning. Seems like you could just bump your timing a few degrees at a time until you start to see knock and then back it off a tad.
Trending Topics
Thread Starter
TECH Fanatic
Joined: Oct 2011
Posts: 1,356
Likes: 2
From: Felton Pa
What effect did the timing bump have on accelleration? At work and cant open the scan. Take this with a grain of salt, because I am new to tuning. Seems like you could just bump your timing a few degrees at a time until you start to see knock and then back it off a tad.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Thread Starter
TECH Fanatic
Joined: Oct 2011
Posts: 1,356
Likes: 2
From: Felton Pa
I bought those a year ago and don't remember the numbers, but cast into the housing it says A/R70. the turbo outlets are 2.5" so I used 2.5" pipe to make the down pipes just until they meet the 3" exhaust I reused from the BBC. There is true duals so each half of the engine see 2.5" exhaust.
I bought those a year ago and don't remember the numbers, but cast into the housing it says A/R70. the turbo outlets are 2.5" so I used 2.5" pipe to make the down pipes just until they meet the 3" exhaust I reused from the BBC. There is true duals so each half of the engine see 2.5" exhaust.
Thread Starter
TECH Fanatic
Joined: Oct 2011
Posts: 1,356
Likes: 2
From: Felton Pa
