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SC400 dyno results with nitrous
92 SC400, K&N drop in filter, SAFCII
http://members.shaw.ca/powercivic/SCHP.GIF With Nitrous Express wet kit 150hp jets, nx tps switch, nx pressure gauge, zex bottle warmer, walbro 255 http://members.shaw.ca/powercivic/SCN20.GIF |
Mind sharing what your SAFC settings are?
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Originally Posted by verylost
Mind sharing what your SAFC settings are?
thank you :D |
yes i would also like to know what the SAFC 2 setting is? :D
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ok everone paypal me $20 for the settings.
j/k I'll post the settings up. As my tuner has said every car is different and I would be careful about just using my settings. |
True... you don’t want to do it exactly like yours.. I just need to know where to start from.. get a lil nudge
You had me going there for a minute though :D
Originally Posted by TurboTeg
ok everone paypal me $20 for the settings.
j/k I'll post the settings up. As my tuner has said every car is different and I would be careful about just using my settings. |
Anyone trying to tune an afc should have a wideband or access to one. This is the best way to dial in your cars. A/F is not something you want to be guessing on.
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i wouldnt rely on his settings at all. he lives in a cooler area and different altitude than everyone. by using his map you arent helping yourself since each car will use different settings even with all other climate conditions the same. best way is to do it right and pick up a wideband and tune from that.
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I know I know.. I'm just being impatient :sad:
I'll jus wait until my appointment next weekend and have it done right... Thanks guys ..To get everyone’s opinion how much power increase you’d you guys expect my car to receive after the tune... all my mods are listed below... I know its just guess.. but what would you guys think is a reasonable gain.... Tommy |
Originally Posted by vipsoarer
i wouldnt rely on his settings at all. he lives in a cooler area and different altitude than everyone. by using his map you arent helping yourself since each car will use different settings even with all other climate conditions the same. best way is to do it right and pick up a wideband and tune from that.
However, there is so little information here or anywhere about the stock AFR conditions, I'd like to get an estimate on what's going on. My purpose for obtaining his settings is for background education, and not application as of yet. So far only VSsc400 has had any definitive numbers. More is always better. |
Thats all? 300rwhp with a 150shot in a v8. I woulda thought more.. Thats only good for 13's in the quarter.
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Interesting. I hadn't even considered the differences in climate. I am at sea level and this is indeed a very cool and moist climate. Around 10-15 deg celcius these days.
I will provide some more info on the AFR before tuning and after as well as all the SAFCII settings. I did not tune with the nitrous we just did one run with no tuning. More info to come tonight. VJ you are one negative guy ha I'll be happy if I hit 13s ! :D It's a long shot but it's possible the jets are not correct. I phoned NX directly and asked for the jet sizing for 150shot with the 4.0L V8. I'm running jet sizes 62 nitrous and 35 fuel. Perhaps these are wrong, who knows. |
Originally Posted by TurboTeg
Interesting. I hadn't even considered the differences in climate. I am at sea level and this is indeed a very cool and moist climate. Around 10-15 deg celcius these days.
I will provide some more info on the AFR before tuning and after as well as all the SAFCII settings. I did not tune with the nitrous we just did one run with no tuning. More info to come tonight. VJ you are one negative guy ha I'll be happy if I hit 13s ! :D It's a long shot but it's possible the jets are not correct. I phoned NX directly and asked for the jet sizing for 150shot with the 4.0L V8. I'm running jet sizes 64 nitrous and 35 fuel. Perhaps these are wrong, who knows. |
sorry to dissapoint ya !
With nitrous my A/F ratio ranges from 12.9 @ 3600 rpm to 10.0 at 6300 rpm Without nitrous my A/F ration ranges from 13.6 @ 3700 rpm to 12.4 @ 6400 rpm *Use these settings at your own risk!* There is no substitute for wideband tuning. 92 SC400, K&N drop in filter, SAFCII setting Sensor: Karman , Car type: 4 cyl, up arrow HI throttle 1000 -3 1600 -3 2200 -4 2800 -4 3400 -6 4000 -7 4600 -7 5200 -14 5800 -16 6400 -16 7000 -9 7600 -8 |
as a newly former tech at lexus i will tell you this. the sc no matter which engine the uz or the jz will run rich. this is programmed in and is why i keep telling everyone its not a big deal to run low octane gas as long as you dont detonate. i think the cars run around 10:1 af at wide open throttle or around there. more than not you will be pulling fuel to tune a mostly stock car (bolt-ons). If you want more info about a/f tuning hit me up on pm or i can make a post about it for those that are interested.
Like i said i used to do this as a profession and have done high end tuning on the side with certifications so please feel free to ask id rather help people than have them do what they think is right and cause catostrophic damage. turboteg: thanks for the input i had a feeling that i was correct on your altitude/climate and will account greatly for your tuning. the numbers look good especially with about 190whp w/o nitrous. 300whp with nitrous defninately is a 150 shot with only about a 15% drivetrain loss. sounds like you could use a catch can to reduce the amount of oil recirculated to burn, which in turn is dropping octane off your fuel and why your drivetrain loss is much less on nitrous |
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