# psi=bar **URL:** \ **Category:** SON240sx Automotive\ **Created:** [May 20, 2004, 10:59pm UTC](https://forums.speedlife.net/t/psi-bar/81013 "2004-05-20T22:59:50Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![Jacky\_Ngai](https://avatars.discourse-cdn.com/v4/letter/j/3d9bf3/32.png) [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)\ **Post date:** [May 20, 2004, 10:59pm UTC](https://forums.speedlife.net/t/psi-bar/81013/1 "2004-05-20T22:59:50Z")
anyone knows how many psi= 1 bar?? thanks! ---
**Author:** ![jjm\_240sx](https://avatars.discourse-cdn.com/v4/letter/j/b77776/32.png) [@jjm\_240sx](https://forums.speedlife.net/u/jjm_240sx)\ **Post date:** [May 21, 2004, 3:23am UTC](https://forums.speedlife.net/t/psi-bar/81013/2 "2004-05-21T03:23:15Z")
14.7 or atmusfear. Think of it this way atmusfear is 14.7 but you never count that so your at 0 so then one bar is 14.7 the amout of atmourfear. If you want to go to bars just add 14.7 ect. correct me if I am wrong ---
**Author:** ![Daddy\_Rim](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/daddy_rim/32/5483_2.png) [@Daddy\_Rim](https://forums.speedlife.net/u/Daddy_Rim)\ **Post date:** [May 21, 2004, 3:34am UTC](https://forums.speedlife.net/t/psi-bar/81013/3 "2004-05-21T03:34:01Z")
1 bar = 14.5 PSI 1 ATM = 14.7 PSI Slight difference between 1 BAR and 1 ATM. ---
**Author:** ![Jacky\_Ngai](https://avatars.discourse-cdn.com/v4/letter/j/3d9bf3/32.png) [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)\ **Post date:** [May 21, 2004, 7:32am UTC](https://forums.speedlife.net/t/psi-bar/81013/4 "2004-05-21T07:32:30Z")
So what is the stock boost of s13 sr20det blacktop? my boost guage show it’s 0.5 bar. Is it normal?? thanks! ---
**Author:** ![\_M\_aurice](https://avatars.discourse-cdn.com/v4/letter/_/c5a1d2/32.png) [@\_M\_aurice](https://forums.speedlife.net/u/_M_aurice)\ **Post date:** [May 21, 2004, 7:37am UTC](https://forums.speedlife.net/t/psi-bar/81013/5 "2004-05-21T07:37:00Z")
Atmosphere is also the correct spelling, for future reference 😉 ---
**Author:** ![Simich](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@Simich](https://forums.speedlife.net/u/Simich)\ **Post date:** [May 21, 2004, 8:00am UTC](https://forums.speedlife.net/t/psi-bar/81013/6 "2004-05-21T08:00:46Z")
Well the stock boost on sr’s, I’m pretty sure at 7psi, so that’s pretty close to .5 bar if bar is 14.5psi ---
**Author:** ![tendim](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tendim/32/3173_2.png) [@tendim](https://forums.speedlife.net/u/tendim)\ **Post date:** [May 21, 2004, 8:38am UTC](https://forums.speedlife.net/t/psi-bar/81013/7 "2004-05-21T08:38:30Z")
> [@Jacky Ngai](#): > > So what is the stock boost of s13 sr20det blacktop? my boost guage show it’s 0.5 bar. Is it normal?? thanks! Stock boost IIRC is 7 PSI, so 14.5/7=.5ish bar. -10d ---
**Author:** ![Jay240](https://avatars.discourse-cdn.com/v4/letter/j/57b2e6/32.png) [@Jay240](https://forums.speedlife.net/u/Jay240)\ **Post date:** [May 21, 2004, 11:40am UTC](https://forums.speedlife.net/t/psi-bar/81013/8 "2004-05-21T11:40:35Z")
> [@\_/\_/\_/M aurice](#): > > Atmosphere is also the correct spelling, for future reference 😉 And for future reference on any type of conversion go to [www.onlineconversion.com](http://www.onlineconversion.com) ---
**Author:** ![\_M\_aurice](https://avatars.discourse-cdn.com/v4/letter/_/c5a1d2/32.png) [@\_M\_aurice](https://forums.speedlife.net/u/_M_aurice)\ **Post date:** [May 21, 2004, 12:03pm UTC](https://forums.speedlife.net/t/psi-bar/81013/9 "2004-05-21T12:03:10Z")
Excellent, I was looking for a good Universal Converter :thumleft: ---
**Author:** ![jjm\_240sx](https://avatars.discourse-cdn.com/v4/letter/j/b77776/32.png) [@jjm\_240sx](https://forums.speedlife.net/u/jjm_240sx)\ **Post date:** [May 21, 2004, 12:05pm UTC](https://forums.speedlife.net/t/psi-bar/81013/10 "2004-05-21T12:05:22Z")
I was close. It was early. ---
**Author:** ![blisterd\_nuts](https://avatars.discourse-cdn.com/v4/letter/b/f475e1/32.png) [@blisterd\_nuts](https://forums.speedlife.net/u/blisterd_nuts)\ **Post date:** [May 21, 2004, 10:54pm UTC](https://forums.speedlife.net/t/psi-bar/81013/11 "2004-05-21T22:54:31Z")
talking about bars. i heard that the highest “bar” you can set stock on a sr20 is 2.5 = around 24.5 psi ---
**Author:** ![jjm\_240sx](https://avatars.discourse-cdn.com/v4/letter/j/b77776/32.png) [@jjm\_240sx](https://forums.speedlife.net/u/jjm_240sx)\ **Post date:** [May 22, 2004, 7:55am UTC](https://forums.speedlife.net/t/psi-bar/81013/12 "2004-05-22T07:55:40Z")
2.5 is around 36psi. ---
**Author:** ![240newbie](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/240newbie/32/5487_2.png) [@240newbie](https://forums.speedlife.net/u/240newbie)\ **Post date:** [May 22, 2004, 9:09am UTC](https://forums.speedlife.net/t/psi-bar/81013/13 "2004-05-22T09:09:53Z")
24.5 or 36 eather or id say it sounds really high for a SR on stock internals? i mean how much can a SR block really take? ---
**Author:** ![SHIFT\_KA24DET](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@SHIFT\_KA24DET](https://forums.speedlife.net/u/SHIFT_KA24DET)\ **Post date:** [May 22, 2004, 10:06am UTC](https://forums.speedlife.net/t/psi-bar/81013/14 "2004-05-22T10:06:17Z")
> [@240newbie](#): > > 24.5 or 36 eather or id say it sounds really high for a SR on stock internals? i mean how much can a SR block really take? The longblock itself can take alot of boost, 2.5 bar though is a bit much. Anyone planning to run 2.5 bar on the t25 good luck, there only good for ~1 bar.