# Evo 9 RS vs. Arod hatch

**URL:** https://forums.speedlife.net/t/evo-9-rs-vs-arod-hatch/243771
**Category:** Shift518 Automotive
**Created:** [April 26, 2009, 11:39am UTC](https://forums.speedlife.net/t/evo-9-rs-vs-arod-hatch/243771 "2009-04-26T11:39:33Z")
**Posts on this page:** 1
**Showing post:** 110

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### Author: ![JiM\_P\_2001](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jim_p_2001/32/6364_2.png) [@JiM\_P\_2001](https://forums.speedlife.net/u/JiM_P_2001)
#### Post date: [May 1, 2009, 8:45am UTC](https://forums.speedlife.net/t/evo-9-rs-vs-arod-hatch/243771/110 "2009-05-01T08:45:02Z")

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> [@NEW POLL: Gold/Natural/WRBlue (pulling a mikes98rt)](https://forums.speedlife.net/t/new-poll-gold-natural-wrblue-pulling-a-mikes98rt/17736/142):
>
> i interpreted it as a specific tune for it. as long as you have a means to control timing you can do whatever with it. like my car i could put a wet kit on and go to town with it as i can pull timing over the entire rev range.
> 
> nitrous is not for the faint of heart. id love to spray my car, but it would be silly on anything but slicks.

There’s really no such thing as a “tune” for nitrous. Nitrous is completely stand alone. It doesn’t care what you have done to your car. Any car that is planning to have nitrous added to should be tuned prior to the N2O installation. The nitrous itself is tuned by changing the jets. You want to maintain the same AFR that the tune on the car is making prior to the installation. (or sometimes a little richer)

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