Everyones N/A dynoed S-AFC settings wanted
#26
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Originally posted by von
Also im thinking that the A/F % is not directly related to how much power your car makes. You can have more % air flow but make less power than a car the other way around.
Also im thinking that the A/F % is not directly related to how much power your car makes. You can have more % air flow but make less power than a car the other way around.
Curtis
'86 GXL autox'r
#27
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Pd day, I've also found that my 6 ports don't open when I'm sitting still, but they do work.
This is a good thread. Nice to see some #'s. What type of WB O2 sensors are you guys using? I like the greddy setup on RX7.com.
This is a good thread. Nice to see some #'s. What type of WB O2 sensors are you guys using? I like the greddy setup on RX7.com.
#28
Rotary Freak
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Thread Starter
Without tuning I now see 52.7% in third gear to 7500rpms. Ok I dont know what this means but Im proud of my airflow. Hehe. Im going to get it dynoes next week if I can find some dam headers.
#29
Ok, I am raising this tread from the dead again ![Big Grin](https://www.rx7club.com/images/smilies/biggrin.gif)
Previously with my:
Cone intake
RB turbo back with custom downpipe
CAI
SAFC
I saw 55.9% as my max afl.
I installed my pineapple sleeves yesterday and I saw 58.5% AFL.
The thing is, I saw 58.5% @ 7100 RPM whereas I saw the 55.9% @ 7600RPM.
Weird eh? Anyone care to explain this?
Anyways, back on topic.
I am probably going to dyno tune my car in the coming week.
I'll let everyone know how much power my little NA makes.
Cheers
![Big Grin](https://www.rx7club.com/images/smilies/biggrin.gif)
Previously with my:
Cone intake
RB turbo back with custom downpipe
CAI
SAFC
I saw 55.9% as my max afl.
I installed my pineapple sleeves yesterday and I saw 58.5% AFL.
The thing is, I saw 58.5% @ 7100 RPM whereas I saw the 55.9% @ 7600RPM.
Weird eh? Anyone care to explain this?
Anyways, back on topic.
I am probably going to dyno tune my car in the coming week.
I'll let everyone know how much power my little NA makes.
Cheers
#31
Rotary Freak
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Thread Starter
Its nearly the same in every gear. First gear is around 50 but sometimes 52 and third gear is the same. Try doing it in a higher gear like third , mabey you will get a little more. And make sure you red line it on your stock tack. That comes out to 7.6k rpms for me according to S-AFC
#34
Rotary Freak
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Thread Starter
PDday. Mabey your losing power at higher rpms hence the drop in airflow. But I dont know. Your a/f seem really high for the amount of mods your have. You should get it dynoed and let us now how it reads on that. You dont have headers?
#39
I got my high end hesitation FIXED!!!
Haha, apparently it was running too rich in the high end.
My new setting is the following...
1000(0)
2000(-3)
3000(-9)
4000(-13)
5000(-13)
6000(-12)
7000(-14)
8000(-13)
And get this......I broke into 60.3% AFL.....hehe
BTW, I don't have header, just a 2.5inch downpipe to RB turbo back from the stock manifold.
Haha, apparently it was running too rich in the high end.
My new setting is the following...
1000(0)
2000(-3)
3000(-9)
4000(-13)
5000(-13)
6000(-12)
7000(-14)
8000(-13)
And get this......I broke into 60.3% AFL.....hehe
BTW, I don't have header, just a 2.5inch downpipe to RB turbo back from the stock manifold.
#40
Originally posted by koukifc3s
How do you check if you VDI is working? Mine was moving fine by hand but is there anyway to make sure?
thanks
How do you check if you VDI is working? Mine was moving fine by hand but is there anyway to make sure?
thanks
1) If it works, you should get a kick when you are at 5500 - 5800 rpm and pull hard to around 7000ish rpm
2) Just rev the car and see if it moves. Mine moves when I rev it in neutral.
3) To test if the actuator is actuating, bypass the solenoid on the solenoid rack. ( I think it's the top 2nd one). Rev the car, it should open up pretty early in the rpm range.
If any of the above 3 test don't work, you can deduce the problem from the other 2.
Hope it helps.
Cheers..
#41
Originally posted by pp13bnos
1k +6% (Idles a bit smoother)
2k -12%
3k -20%
4k -24%
5k -16%
6k -24%
7k -27%
8k -26%
I had a 10-1 a/f ration without the s-afc. Use at your own risk. CJ
1k +6% (Idles a bit smoother)
2k -12%
3k -20%
4k -24%
5k -16%
6k -24%
7k -27%
8k -26%
I had a 10-1 a/f ration without the s-afc. Use at your own risk. CJ
#45
Rotary Freak
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Thread Starter
Yes. Mid day I got 52.8 and at night Im getting constant 50.7s. I thought something was wrong with my car at first. Good point PDay. I guess if it runs richer than its losing power according to some people but I dont think that the A/F ratio specifically has as much to do with the power the vehicle makes as what poeple think. But its pretty close. whatever I dotn know.
#46
The air flow meter, does'nt have as much to do with the power as the a/f ratio does. If you're running a 10-1 a/f ratio on a n/a, it realy, realy hurts power. The reason I say this is because, when I dyno'd my car I was only seeing around 53.8%(There are lots of people who are running 53%, but not many putting down 167rwhp)....now I'm seeing upto 60%. I made 167rwhp@53%. There is no way I'm making much more than 10rwhp more now. (If that!) and the air flow meter has seen a jump of nearly 7%. I don't think the two are that closely related. CJ
Last edited by pp13bnos; 10-17-02 at 08:12 AM.
#49
It's around -20 C rite now and I found my car a bit sluggish so I retuned my SAFC.
New readings are
...............................adjustment
RPM.......................High............Low
1000......................0................-5
2000.....................-3................-7
3000....................-14.............-10
4000....................-16.............-10
5000....................-17................0
6000....................-18................0
7000....................-19................0
7500....................-18................0
btw, before I re-adjust the safc, I wasn't running as lean in the high revs. Maybe around 2 to 3 points richer. What I noticed is that with the leaner settings, the pops from the shifts are not as loud....
Anyone can comment on that?
Thanks
New readings are
...............................adjustment
RPM.......................High............Low
1000......................0................-5
2000.....................-3................-7
3000....................-14.............-10
4000....................-16.............-10
5000....................-17................0
6000....................-18................0
7000....................-19................0
7500....................-18................0
btw, before I re-adjust the safc, I wasn't running as lean in the high revs. Maybe around 2 to 3 points richer. What I noticed is that with the leaner settings, the pops from the shifts are not as loud....
Anyone can comment on that?
Thanks