92 5S SAFC Tuning

cstmx07 · 05-25-2008, 01:29 AM

So, I'm putting an SAFC on my '92 5s, How then do I tune the SAFC since there is no TPS, just an on off switch? do I tune the lo-throttle and high-throttle 50-50? or do I tune it 0 (low) and 100 (high)? Then do I just adjust the fuel every 1000rpm?

mrturrari · 05-25-2008, 02:11 AM

I don't really have enough information about the rev1 TPS or the SAFC to accurately answer your question but if someone chimes in with that info I can probably help.

- At about what throttle percentage(s) does the rev1 TPS change voltage?
- Can the SAFC use MAP input instead of TPS to read load? If it can then it maybe a better source to use in your case.
- What are you using the SAFC to accomplish? If it is to tune with the stock injectors I don't see any reason you couldn't get it to work even with the rev1 TPS. If you however are trying to use larger injectors you may have problems unless you use something variable.

Gairloch · 06-03-2008, 07:11 PM

The rev1 TPS is basically 3 position

I believe there is more information about it in the BGB.

05-25-2008, 01:29 AM	#1 (permalink)
cstmx07 Cage Fighter Join Date: Jul 2007 Location: Bridgman, MI Posts: 126 Thanks: 8 Thanked 3 Times in 3 Posts iTrader Rating: (1/100% )	92 5S SAFC Tuning So, I'm putting an SAFC on my '92 5s, How then do I tune the SAFC since there is no TPS, just an on off switch? do I tune the lo-throttle and high-throttle 50-50? or do I tune it 0 (low) and 100 (high)? Then do I just adjust the fuel every 1000rpm?

06-03-2008, 07:11 PM	#3 (permalink)
Gairloch Dreaming of apexes Join Date: Aug 2005 Location: Minneapolis, MN Posts: 4,426 Thanks: 114 Thanked 219 Times in 192 Posts My Google Map iTrader Rating: (7/100% )	The rev1 TPS is basically 3 position I believe there is more information about it in the BGB. __________________ "Inside the car, the world beyond the driver's immediate horizon ceases to exist. Alone with the solitude of his desire, survival sense numbed by the speed, he's outrun the mediocrity of the outside world, slipped the shackles it tries to clamp on us all. He is running free, chased only by a fear of failure, for failure is to risk ejection into the real world." ~Mark Hughes

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05-25-2008, 02:11 AM	#2 (permalink)
mrturrari I <3 my 5sfe Join Date: Mar 2005 Posts: 403 Thanks: 2 Thanked 87 Times in 57 Posts iTrader Rating: (0/0% )	I don't really have enough information about the rev1 TPS or the SAFC to accurately answer your question but if someone chimes in with that info I can probably help. - At about what throttle percentage(s) does the rev1 TPS change voltage? - Can the SAFC use MAP input instead of TPS to read load? If it can then it maybe a better source to use in your case. - What are you using the SAFC to accomplish? If it is to tune with the stock injectors I don't see any reason you couldn't get it to work even with the rev1 TPS. If you however are trying to use larger injectors you may have problems unless you use something variable.