87mm TB Project
09-15-2013, 08:10 AM
#206
Registered User
I read on the Titan forum that they drill a small hole and this solved the idle problem.
Install Update 3:
As stated in the instructions, if your Titan engine dies upon cold starting, apply light pressure to the gas pedal as the engine starts; holding it for 5-10 seconds. Upon release the Electronic Throttle Control (ETC) will take over.
If you would like to permanently fix the cold starting issue, drill a 3/16” hole in the center of the butterfly/throttle plate. For the LS2 TB, drill the hole centered just below the rotating bar. For the LS7 TB, drill the hole centered just above the rotating bar as shown in the picture attached. The hole in the picture is actually from back when I started with 1/8" and it wasn't enough. So far 3/16" has been working well.
As stated in the instructions, if your Titan engine dies upon cold starting, apply light pressure to the gas pedal as the engine starts; holding it for 5-10 seconds. Upon release the Electronic Throttle Control (ETC) will take over.
If you would like to permanently fix the cold starting issue, drill a 3/16” hole in the center of the butterfly/throttle plate. For the LS2 TB, drill the hole centered just below the rotating bar. For the LS7 TB, drill the hole centered just above the rotating bar as shown in the picture attached. The hole in the picture is actually from back when I started with 1/8" and it wasn't enough. So far 3/16" has been working well.
09-16-2013, 01:12 AM
#208
Thanks. I think I did remember reading that now that you pointed it out. I am hesitate to give that a try just to not ruin the TB, but they're cheap so what the hell. 
Next time I have it off the car to mess with it I will try that.
What they mention in there about having to apply slight pressure to the throttle for 5-10 seconds is exactly what I've had to do. If I recall though, they late fix that cold start issue with tuning. I will see if I can tune it out first and if not I will try the hole trick.
Next time I have it off the car to mess with it I will try that.
What they mention in there about having to apply slight pressure to the throttle for 5-10 seconds is exactly what I've had to do. If I recall though, they late fix that cold start issue with tuning. I will see if I can tune it out first and if not I will try the hole trick.
02-27-2014, 12:32 PM
#218
We both had some major family issues in the last few months so things are delayed.
I am in the process of replacing all the bushings on my car with SPL right now. I just finished installing the solid diff and subframe bushings. I just installed all the sphericals on the rear knuckles too, just have to put them back on the car.
I am not in too much of a hurry to get the 87mm TB done as long as its done before I pull my motor. mw9 still needs to make the intake similar to what SG did. Once he gets that done I am going to test fit and make sure everything works on my car before I pull it and do the motor build. I don't really want to build my motor unless we can get something like this to work since it's a proven power maker especially on built motors.
I am in the process of replacing all the bushings on my car with SPL right now. I just finished installing the solid diff and subframe bushings. I just installed all the sphericals on the rear knuckles too, just have to put them back on the car.
I am not in too much of a hurry to get the 87mm TB done as long as its done before I pull my motor. mw9 still needs to make the intake similar to what SG did. Once he gets that done I am going to test fit and make sure everything works on my car before I pull it and do the motor build. I don't really want to build my motor unless we can get something like this to work since it's a proven power maker especially on built motors.
