Stock LS1 manifold to FAST LSXR 90 or 102???
12-08-2018, 07:02 PM
#61
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Drive by wire does not have iac. It just controls the blade. You just gotta eff around to get the scalar right.
102 TB is hard in large part because they vary so much. Main problem is the tiny IAC port. Drill it out to 3/8 inch.
Next problem is sometimes the blade is smaller than the throttle body so it had a big air gap even fully closed. Then another one seals so good you need a 13/64 hole to get your warm IAC counts down. And you never know which you will get.
And even if you have neither of those issues, you gotta calibrate the IAC area table, and there is no easy way. You cannot log your throttle area to make it make sense.
102 TB is hard in large part because they vary so much. Main problem is the tiny IAC port. Drill it out to 3/8 inch.
Next problem is sometimes the blade is smaller than the throttle body so it had a big air gap even fully closed. Then another one seals so good you need a 13/64 hole to get your warm IAC counts down. And you never know which you will get.
And even if you have neither of those issues, you gotta calibrate the IAC area table, and there is no easy way. You cannot log your throttle area to make it make sense.
12-18-2018, 09:34 PM
#65
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I expected that to happen with the 102mm set up when the tuner tried to steer you toward the 92mm set up. It's why I suggested finding a different tuner.
There's a board member usename Slowhawk that has a good reputation. He's in NY or Massachusetts and has a shop. I think Slowhawk can help get the car properly sorted out. He is also an LS1TECH sponsor.
Slowhawk Performance
There's a board member usename Slowhawk that has a good reputation. He's in NY or Massachusetts and has a shop. I think Slowhawk can help get the car properly sorted out. He is also an LS1TECH sponsor.
Slowhawk Performance
Last edited by Tornadogward; 12-18-2018 at 09:42 PM.
12-19-2018, 07:57 AM
#66
Tornadogward, it's good to hear the original tuner tweaked and improved it from where it was previously. The surge yoyo and idle hang time with slow "idle decay rate are very annoying. The good part is it sounds like the car isn't stalling so that's good news!
Honestly, I think contacting Slowhawk and explaining what's desired will get the best answer. An experienced tuner like Slowhawk can probably tweak the "idle decay rate" and get the 102 set up better. He might have some other suggestions too.
Thank you for the updates. That really helps other folks that come along if they have an issue see how to go about getting their set up sorted out.
Honestly, I think contacting Slowhawk and explaining what's desired will get the best answer. An experienced tuner like Slowhawk can probably tweak the "idle decay rate" and get the 102 set up better. He might have some other suggestions too.
Thank you for the updates. That really helps other folks that come along if they have an issue see how to go about getting their set up sorted out.