V6 70mm throttle body idle

[TTVN]

Hey guys
have got a vr v6 to have a look at tomorrow for a guy , he has fitted a 70mm throttle body and not it has the usual high idle with the bigger t/b

I havent needed to change a tune to suit the t/b size before but if anyone knows whats needed to do would save me some tinkering time tomorrow

thanks in advance Rod

[Holden202T]

could be as simple as the butterfly needs to be closed more for the bigger TB. the IAC should do the rest.

[The1]

most of the time it's just the tps not on right, just check it's at 0%, some tps's ive had to drill the holes out slightly more to get it to sit at 0% even though there all the same it's weird, there ment to self correct back to 0% after a few key turns but some dont!

[TTVN]

iv put a few 70mm s on v8s over the time and just had to close the butterfly pretty much right up and just crack it so it doesnt stick
i thought the v6 may have needed more attention to the iac settings however i looked and nothing jumped out at me that would be an obvious thing to change without testing , hence the post lol

I only just got home from work and the car is here so ill check it out tomorrow and see how i go
thanks guys appreciate it

[Holden202T]

yeah i had the same issue with i put the bigger one on my 202, just had to screw around a bit with the idle stop

[TTVN]

throttle cable was too tight and stop needed adjusting
thanks for the input guys