# Any Interest In a Dyno Tuning Session? **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [October 20, 2009, 9:49am UTC](https://forums.speedlife.net/t/any-interest-in-a-dyno-tuning-session/203982 "2009-10-20T09:49:29Z")\ **Posts on this page:** 1\ **Showing post:** 193
**Author:** ![Quik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/quik/32/5979_2.png) [@Quik](https://forums.speedlife.net/u/Quik)\ **Post date:** [January 20, 2010, 8:07pm UTC](https://forums.speedlife.net/t/any-interest-in-a-dyno-tuning-session/203982/193 "2010-01-20T20:07:27Z")
> [@need job STILL](https://forums.speedlife.net/t/need-job-still/41939/22): > > i have an interface from Harris Speed Works that does retard the timing through the IAT at a certain temp. the thing i dont like about it, is that it has about .5-.75 sec delay in retarding the timing, i have logged it & was shocked. thats why i need to know about using COS5, so i can wire the nitrous accordingly. if we do the COS5, then i won’t use the interface, but if ED dont want to do the COS5, i’ll have to use the interface to pull my timing. .5 delay isnt much of a issue unless your flipping switch on the fly. if your armed and ready for spray then the .5 of a second isnt much to think about especially if your in the staging lanes. --- _[View the full topic](https://forums.speedlife.net/t/any-interest-in-a-dyno-tuning-session/203982)._