Timing? Tuning?
10-11-2012, 04:23 PM
#1
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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?
10-12-2012, 07:30 AM
#5
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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.
10-12-2012, 08:03 AM
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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.
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10-12-2012, 09:00 AM
#8
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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.
10-12-2012, 09:03 AM
#10
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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.
10-12-2012, 10:18 AM
#11
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.
10-12-2012, 03:19 PM
#12
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