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ooljima
DSM Regular
Joined: Fri Apr 17, 2009 8:49 am
Posts: 47
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 Finally changing things up for crappy 91oct Used to live out of cali with good old 93oct tuning for 11.5-11.8 AFR. Since i've started to drive the dsm more i think it'll be smart to adjust to the 91 crap. I've heard some guys on the forum say 10.5 is what they tune for. I've heard others say 10.8 is the prime AFR for 91 octane. I know 11.7 is not good for us in cali.
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| Fri Apr 16, 2010 4:42 pm |
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SOADweskey
No More 2.3L
Joined: Tue May 22, 2007 7:36 pm
Posts: 4412
Location: Jacksonville, FL
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Re: Finally changing things up for crappy 91oct Every car is different, my old setup liked 10.8:1 with 91 octane anything leaner and it was knock city. But like I said every engine is different, you just need to tune your car for what makes it happy. Start with 11:1 and see what happens.
_________________
Boost Creep is your turbo's way of calling you a little bitch for not running enough boost.
452 AWHP 446 lb ft of torque e85 FTW!!
"They are cool manly men now those DSM owners. Before it was just pasty white nerds, metro hair Asian kids and fruit pickers. They do real car club stuff and everything. Sometimes they even spend money here :-/"
-Mike W
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| Fri Apr 16, 2010 6:27 pm |
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clockworktoy
Squish Face
Joined: Tue May 22, 2007 7:08 pm
Posts: 4327
Location: LBC
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Re: Finally changing things up for crappy 91oct Anything around 11:1 is perfectly fine on 91, i never saw any advantages going from 11:1 to 11.5:1 and i don't believe there are any power differences on 91. I would say stick anywhere from 10.5 to 11.0 and see what the car likes.
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| Fri Apr 16, 2010 6:29 pm |
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Illeagle
Talon of Doom
Joined: Wed May 23, 2007 10:07 am
Posts: 3615
Location: Long Beach
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Re: Finally changing things up for crappy 91oct 10.8:1 works pretty well, going up to 11:1 will maybe net another 5-10whp. Going up to 11.3:1 from there will probabaly net another 3whp. Not worth the gains IMHO. But then again Im the one at 12:1 AFR with 19* of timing.
_________________1/4 ET-11.657@121.18mph w/ 1.682 60' 445whp/427tq on RRE Dyno All on 91 pump. Do you need your car tooned? Got some extra cash? PM me for details. I offer street and dyno tunes
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| Fri Apr 16, 2010 9:34 pm |
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ooljima
DSM Regular
Joined: Fri Apr 17, 2009 8:49 am
Posts: 47
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Re: Finally changing things up for crappy 91oct
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| Sat Apr 17, 2010 12:45 am |
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Illeagle
Talon of Doom
Joined: Wed May 23, 2007 10:07 am
Posts: 3615
Location: Long Beach
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Re: Finally changing things up for crappy 91oct _________________1/4 ET-11.657@121.18mph w/ 1.682 60' 445whp/427tq on RRE Dyno All on 91 pump. Do you need your car tooned? Got some extra cash? PM me for details. I offer street and dyno tunes
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| Sat Apr 17, 2010 4:29 am |
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Wally
Senior Member
Joined: Wed Feb 18, 2009 1:59 pm
Posts: 2238
Location: Los Angeles 90006
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Re: Finally changing things up for crappy 91oct
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| Sat Apr 17, 2010 9:13 am |
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ooljima
DSM Regular
Joined: Fri Apr 17, 2009 8:49 am
Posts: 47
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Re: Finally changing things up for crappy 91oct you know... the stuff with the good stuff. Not really 91 octane but it kinda has some of it. THE STUFF
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| Sat Apr 17, 2010 9:35 am |
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Illeagle
Talon of Doom
Joined: Wed May 23, 2007 10:07 am
Posts: 3615
Location: Long Beach
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Re: Finally changing things up for crappy 91oct _________________1/4 ET-11.657@121.18mph w/ 1.682 60' 445whp/427tq on RRE Dyno All on 91 pump. Do you need your car tooned? Got some extra cash? PM me for details. I offer street and dyno tunes
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| Sat Apr 17, 2010 10:08 am |
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Lenny 15
Senior Member
Joined: Tue May 22, 2007 10:44 pm
Posts: 1071
Location: Garden Grove
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Re: Finally changing things up for crappy 91oct Ethanol. 
_________________
90' Eclipse GSX. MODS:
2000 Lightning. 132k miles, 405rwhp, 481rwtq. 13.4 @ 103mph
"Sure I respect him, but there are lots of tools I respect. Such as the torque wrench and the Cut-off wheel."
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| Mon Apr 19, 2010 4:40 pm |
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Illeagle
Talon of Doom
Joined: Wed May 23, 2007 10:07 am
Posts: 3615
Location: Long Beach
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Re: Finally changing things up for crappy 91oct o__o!! A hunter sighting!!
Nope, I'm running 91 octane from 7/11 down the street.
_________________1/4 ET-11.657@121.18mph w/ 1.682 60' 445whp/427tq on RRE Dyno All on 91 pump. Do you need your car tooned? Got some extra cash? PM me for details. I offer street and dyno tunes
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| Mon Apr 19, 2010 5:06 pm |
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gofer
DSM Regular
Joined: Sun Nov 01, 2009 4:38 pm
Posts: 160
Location: san diego
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Re: Finally changing things up for crappy 91oct _________________- Corey'97 Radiant Fire Red AWD GS-T 440awhp, 390 ft-lbs. tq tuned by Cowabunga Sam 
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| Tue Apr 20, 2010 10:48 am |
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ooljima
DSM Regular
Joined: Fri Apr 17, 2009 8:49 am
Posts: 47
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Re: Finally changing things up for crappy 91oct OH SNAP! SAMMY got called!
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| Tue Apr 20, 2010 2:27 pm |
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Wally
Senior Member
Joined: Wed Feb 18, 2009 1:59 pm
Posts: 2238
Location: Los Angeles 90006
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Re: Finally changing things up for crappy 91oct
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| Tue Apr 20, 2010 2:45 pm |
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