SAFC-II benifical being N/A??
SAFC-II benifical being N/A??
idk if this is a stupid question or not, but would the SAFC be benifical being N/A? I have a MEVI comming and a Apexi WS exhaust. I know the exhaust isnt worth much if anything on the dyno, but i would like to get the MEVI tuned. Wold i be able to do this with the safc? Im also looking for an ecu. Does the emanage with 4th gens? Ive searched around but couldnt find anything.
Originally Posted by sean05
ya i want to get to a dyno but i need to find one around here. Can you tell me the difference in the SAFC and the VAFC?
Originally Posted by SDot82
They do the same thing except the VAFC can control when a VETC engages or can activate our VI's.
Originally Posted by sean05
so the VAFC would be more benefictial for me. Does anyone know what the SMT6 does? http://www.perfectpower.com/products/smt6.asp i saw it posted in another thread but wasnt much details on it.
Originally Posted by sean05
so the VAFC would be more benefictial for me. Does anyone know what the SMT6 does? http://www.perfectpower.com/products/smt6.asp i saw it posted in another thread but wasnt much details on it.
the SMT6 i think is a more hardcore version of an AFC. i think in addition to air/fuel ratio it can make adjustments to the timing.
i was reading the apexi site but they dont do much explaining.
Originally Posted by From Apexi's Site
The highly anticipated release of the new A'PEX VAFC II marks a new revolution in piggy-back style fuel controllers. Building upon the world wide success of the previous VAFC, the new VAFC II has taken the proven technology of the last VAFC to the next level. For optimal fuel control, the VAFC now allows for 12 point fuel manipulation in 100 RPM increments. The VAFC II also allows for the VTEC engagement point to be manipulated from 3000-7000 RPM, including the new i-VTEC systems. The redesigned case features a center push button with a rotating outer switch for easy and precise data input. To protect data maps from being tampered with, the new VAFC II features a password protection system.
Like the Super AFC II, the VAFC II displays data in three different modes: Numerical, analog, and graph. Numerical mode allows the user to monitor up to four different values in numerical format and also shows peak hold values on demand. The analog mode displays up to two values in an easy to read meter style display. Peak hold is included in analog mode as well. The graph mode offers real time graph plotting with a built in ghost map trace feature. The graph can relay movement up to 60 seconds.
New Features Include:
- New case design with center push button and rotating outer switch
- VTEC engagement control from 3000-7000 RPM in 100 RPM increments
- 12 point fuel control for LOW and HIGH VTEC maps (total of 24 points)
- i-VTEC compliant
- Monitor i-VTEC VVT movement in real time
- Password protection
- Red LED light indicated cam switchover point
- EEPROM chip for maximum data storage
- VTEC Match/Unmatch correction for smooth VTEM engagement modification
- Versatile mounting bracket
Like the Super AFC II, the VAFC II displays data in three different modes: Numerical, analog, and graph. Numerical mode allows the user to monitor up to four different values in numerical format and also shows peak hold values on demand. The analog mode displays up to two values in an easy to read meter style display. Peak hold is included in analog mode as well. The graph mode offers real time graph plotting with a built in ghost map trace feature. The graph can relay movement up to 60 seconds.
New Features Include:
- New case design with center push button and rotating outer switch
- VTEC engagement control from 3000-7000 RPM in 100 RPM increments
- 12 point fuel control for LOW and HIGH VTEC maps (total of 24 points)
- i-VTEC compliant
- Monitor i-VTEC VVT movement in real time
- Password protection
- Red LED light indicated cam switchover point
- EEPROM chip for maximum data storage
- VTEC Match/Unmatch correction for smooth VTEM engagement modification
- Versatile mounting bracket
Originally Posted by NmexMAX
What more explaining do you need?
oh wellWhich one would be more benefictial with the mevi? i have a summit racing switch so i really dont need it to engage the vi for me.
Cliff notes...
VAFC does everything the SACF does, but with the option of controlling VTEC, or in your case, MEVI activation point.
The VAFC can control in increments of 100 rpms, more precise than SAFC's 200 rpm increments, but they both only offer a 12 point map .. so ... even with 200 increments, you will have to skip some rpms and are not able to take advantage of the 100 rpm increments if tuning to fuel cut.
Get the cheaper one .. not sure on price difference of the 2. Since you're going MEVI, an extended rev limiter is a must, so get the JWT first, and then dyno and see where your A/F is.
Although JWT does tune it(a/f), it's crude, and not vehicle specific ... but still better than stock.
VAFC does everything the SACF does, but with the option of controlling VTEC, or in your case, MEVI activation point.
The VAFC can control in increments of 100 rpms, more precise than SAFC's 200 rpm increments, but they both only offer a 12 point map .. so ... even with 200 increments, you will have to skip some rpms and are not able to take advantage of the 100 rpm increments if tuning to fuel cut.
Get the cheaper one .. not sure on price difference of the 2. Since you're going MEVI, an extended rev limiter is a must, so get the JWT first, and then dyno and see where your A/F is.
Although JWT does tune it(a/f), it's crude, and not vehicle specific ... but still better than stock.
W/a MEVI, you really need the extended rev limit. I have JWT, and I know it works etc, but they have both been proven, so it's up to you. I waited 7 weeks for mine, and paid ~700 w/core ECU and reporgram + shipping ... w/TS there's not so long of a wait, but not sure if they've cracked the rev limit code on all ECU's.
Check www.car-part.com for some cheap ECU's to send in for a core.
Check www.car-part.com for some cheap ECU's to send in for a core.
Originally Posted by NmexMAX
W/a MEVI, you really need the extended rev limit. I have JWT, and I know it works etc, but they have both been proven, so it's up to you. I waited 7 weeks for mine, and paid ~700 w/core ECU and reporgram + shipping ... w/TS there's not so long of a wait, but not sure if they've cracked the rev limit code on all ECU's.
Check www.car-part.com for some cheap ECU's to send in for a core.
Check www.car-part.com for some cheap ECU's to send in for a core.
edit: what do you have your rev limiter set at? It there another way to get around using an ecu? Can the greddy emanage be used on the VQ30DE? And do you have any information on the SMT6?
....................
there's some info on the SMT-6 in this all motor forum. also for the ecu, you can put an auto or 5speed ecu in your car (as long as you don't mind a temporary cel) and send your original ecu into jwt or ts, then swap when you get your original ecu back.
i actually have an auto ecu for sale from my '95 if you're interested.
i actually have an auto ecu for sale from my '95 if you're interested.
Several threads on the subject. Here is one where a member got gains from his SAFCII.
http://forums.maxima.org/showthread....highlight=safc
http://forums.maxima.org/showthread....highlight=safc
Senior Member
Joined: Jan 2005
Posts: 1,107
Originally Posted by s0ber
you wouldnt really need to control the VI, your VI opening rpm is fine, little to no dip in power so nissan got that right.
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