timing question
08-01-2014, 08:47 AM
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Car: 88 GTA Trans-am
Engine: 350 vortec TPI(in process)
Transmission: 700-R4
Axle/Gears: 3.27 LSD
timing question
Hey guys,
I e only been tuning for a year and I can't find a good thread for info that im looking for.
So my car pulls really we'll in first and second...third gear is flat as he'll..im still a bit rich but I'll tune that out soon.
So my max spark advance is 32 degrees, and base is set at 10.. I know carb guys lock their timing out at whatever say 34 or 35 so when they shift into third is still at 35 degrees...
Mine however when it hits 3rd, RPMs drop to 3600 and timing drops down to27 so can I tune my max SA to come in around 3500? I haven't started on the timing yet but plan to this week and am looking to see what you guys do...it's a 350 with hsr and vortec heads with a can...check my sig for the specs..
Thanks in advance
I e only been tuning for a year and I can't find a good thread for info that im looking for.
So my car pulls really we'll in first and second...third gear is flat as he'll..im still a bit rich but I'll tune that out soon.
So my max spark advance is 32 degrees, and base is set at 10.. I know carb guys lock their timing out at whatever say 34 or 35 so when they shift into third is still at 35 degrees...
Mine however when it hits 3rd, RPMs drop to 3600 and timing drops down to27 so can I tune my max SA to come in around 3500? I haven't started on the timing yet but plan to this week and am looking to see what you guys do...it's a 350 with hsr and vortec heads with a can...check my sig for the specs..
Thanks in advance
08-01-2014, 07:16 PM
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Car: 88 GTA Trans-am
Engine: 350 vortec TPI(in process)
Transmission: 700-R4
Axle/Gears: 3.27 LSD
Re: timing question
bump!!!!!.... no one can point me inn the right direction? i know which table to use... was just wondering if these cars work in the same manner... a motor is a motor.. give it what it likes.... i can look for knock.. but being pretty well self taught i could use a pointer
08-02-2014, 08:13 AM
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Car: check
Engine: check
Transmission: check
Re: timing question
The RPM drop seems to be too much on the 2-3 shift. Is the TCC also being locked at this time? If so can up the forced lock MPH to stay in the power band.
As for the SA, as you say, whatever the engine likes.
RBob.
As for the SA, as you say, whatever the engine likes.
RBob.
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