[V10 MOJO]

thnx to Mike (96 RT10) i replaced the 3/4" hose from airbox to IAC with a 5/8" hose and it DRAMTICALLY reduced my idle hang. it was constantly hangin up at around 2000 until coming to a full stop. now it hangs around 1000 and only happens occasionally. Thnx mike for the advice.

im going to try a 1/2" hose tommorrow and see if it cant improve even more.

 

[97GTS]

Here is another way to vary the IAC resistance from Sean Roe.

 

[viper spray]

Let us know the results.

 

[V10 MOJO]

just redid it with 1/2" hose. il try it out tommorrow, ive got a hour and half drive to the dyno shop. bottom line, if it doesnt correct it completely, im getting rid of the 70mm TBs, its not like they add anything worth while in the big picture of HP anyway.

FYI; i read where many cars did this idle hang when stock, mine never did nor did it do it with the upgraded heads/cam. it began ONLY after i did these stupid ass 70 mm TBs.

as for a legit fix to this problem other than ingenuity and the like...wish on, corporate and could give a fuck less about us

 

[_Mark_]

Mine does it stock, but its rare, and usually after starting and running when cold.