S4 Tps... Safc/afr
10-13-03, 09:38 PM
#1
S4 Tps... Safc/afr
Well, I have been reading the problems of running a SAFC on a S4 because of it lacking the tune ablilty. But Has anyone had any problems the HKS AFR? Or will it be the same for any A/F controller?
I have found a few write ups on adding the second tps to the gas pedal. Has anyone tried swapping the S5 tps into a S4, but still using the mechanical oil pump? I have read that you need to remove that and use premix.
If anyone know of any good write ups on this I would really appreciate it. I really did not come up with much here, just maybe a thread or 2 about it..
I have found a few write ups on adding the second tps to the gas pedal. Has anyone tried swapping the S5 tps into a S4, but still using the mechanical oil pump? I have read that you need to remove that and use premix.
If anyone know of any good write ups on this I would really appreciate it. I really did not come up with much here, just maybe a thread or 2 about it..
10-13-03, 09:59 PM
#3
I am in between the two. Actually one it is really stupid, I hate the color and how it looks so I would spend the few extra bucks for the Ltd Edt one, second if the HKS AFR does not have a problem with the TPS I am sure I will go with that one then..On top of that the HKS is cheaper, I know its older though.....
10-17-03, 06:44 PM
#6
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not sure if you're the same guy from teamfc3s but...
https://www.rx7club.com/showthread.p...ressure+sensor
Dale was the first I've heard of to do it on a FC. Using a map sensor for the TPS input on the safc has been around for a long time. DSM and honda guys still do it if they're running the stock ecu.
https://www.rx7club.com/showthread.p...ressure+sensor
Dale was the first I've heard of to do it on a FC. Using a map sensor for the TPS input on the safc has been around for a long time. DSM and honda guys still do it if they're running the stock ecu.
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10-17-03, 09:30 PM
#8
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look in the archives and you'll find even more threads on it. It's simple, instead of tying into the TPS wire on the ecu you run a wire to the pressure sensor and tie into it before the FCD.
Yes it definitely works.
Mounting the safc and splicing all the wires took about an hour and a half.
Don't get the HKS unit, the apexi is better. But yes I imagine the same thing could be done. All the TPS sensor is sending back to the SAFC is a voltage. The TPS and pressure sensor both work on 0-5 volts.
Yes it definitely works.
Mounting the safc and splicing all the wires took about an hour and a half.
Don't get the HKS unit, the apexi is better. But yes I imagine the same thing could be done. All the TPS sensor is sending back to the SAFC is a voltage. The TPS and pressure sensor both work on 0-5 volts.
What makes the SAFC better than the AFR?
