# Two Exhaust Cams **URL:** \ **Category:** SON240sx Automotive\ **Created:** [March 16, 2004, 11:43am UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724 "2004-03-16T11:43:34Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![smurf6x6](https://avatars.discourse-cdn.com/v4/letter/s/bcef8e/32.png) [@smurf6x6](https://forums.speedlife.net/u/smurf6x6)\ **Post date:** [March 16, 2004, 11:43am UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724/1 "2004-03-16T11:43:34Z")
I was wondering if anyone on the board is running two exhaust cams in the KA. What kind of gains did you get and how the power band change. I’m debating it right now because I got an extra set of cams from my last motor. Thanks in advance. ---
**Author:** ![AnDrEw](https://avatars.discourse-cdn.com/v4/letter/a/f19dbf/32.png) [@AnDrEw](https://forums.speedlife.net/u/AnDrEw)\ **Post date:** [March 16, 2004, 11:49am UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724/2 "2004-03-16T11:49:56Z")
I’m not familar with the 2 exhaust cams one. I’m am however familar with swaping the exhaust for intake in the 91 DOHC. Do a search on NICO- [www.nissaninfiniticlub.com](http://www.nissaninfiniticlub.com) I have heard rumour of 10 hp gains. I don’t know how true that is though :? ---
**Author:** ![smurf6x6](https://avatars.discourse-cdn.com/v4/letter/s/bcef8e/32.png) [@smurf6x6](https://forums.speedlife.net/u/smurf6x6)\ **Post date:** [March 16, 2004, 11:53am UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724/3 "2004-03-16T11:53:16Z")
But the intake cam has a shorter duration than the exhaust. I don’t really see how it would benifit :?: ---
**Author:** ![AnDrEw](https://avatars.discourse-cdn.com/v4/letter/a/f19dbf/32.png) [@AnDrEw](https://forums.speedlife.net/u/AnDrEw)\ **Post date:** [March 16, 2004, 11:55am UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724/4 "2004-03-16T11:55:21Z")
> [@smurf6x6](#): > > But the intake cam has a shorter duration than the exhaust. I don’t really see how it would benifit :?: neither do I :?: I’d search on NICO, but I’m pretty busy. Go search there KA24E/KA24DE forum. I remember it being brought up numerous times. ---
**Author:** ![smurf6x6](https://avatars.discourse-cdn.com/v4/letter/s/bcef8e/32.png) [@smurf6x6](https://forums.speedlife.net/u/smurf6x6)\ **Post date:** [March 16, 2004, 11:59am UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724/5 "2004-03-16T11:59:50Z")
Yah. I made a post there before and everyone said try it and see, but I just want see if anyone has done it first hand. ---
**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:** [March 16, 2004, 8:11pm UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724/6 "2004-03-16T20:11:29Z")
My friend did it but didn’t know to set the timing back 3 degrees on the exhaust cam so both the intake and exhaust valves opened at the same time colliding into the piston leaving him with a blown engine so be careful. ---
**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:** [March 16, 2004, 9:29pm UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724/7 "2004-03-16T21:29:35Z")
Nope, Mike put 91’ cams in his car. - All S13 cams are the same, 1991 - 1994 the only difference is in the S14 cams. Putting S13 cams in a S14 causes an increase of power of about 10% ---
**Author:** ![m\_m](https://avatars.discourse-cdn.com/v4/letter/m/9fc29f/32.png) [@m\_m](https://forums.speedlife.net/u/m_m)\ **Post date:** [March 20, 2004, 6:56pm UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724/8 "2004-03-20T18:56:13Z")
> [@SHIFT\_SR20DET](#): > > - All S13 cams are the same, 1991 - 1994 the only difference > is in the S14 cams. Putting S13 cams in a S14 causes an increase > of power of about 10% Swapping both cams? Or swapping intake or exhaust cam individually? ---
**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:** [March 20, 2004, 10:10pm UTC](https://forums.speedlife.net/t/two-exhaust-cams/80724/9 "2004-03-20T22:10:49Z")
> [@m&m](#): > > [quote=SHIFT\_SR20DET]\* All S13 cams are the same, 1991 - 1994 the only difference > is in the S14 cams. Putting S13 cams in a S14 causes an increase > of power of about 10% Swapping both cams? Or swapping intake or exhaust cam individually?[/quote] Both. Using the S13’s both intake and exhaust cams in the S14’s KA will result in an increase of power of about 10%