Using SAFC as engine management
http://members.westnet.com.au/cobra-/safc.jpg
I have an SAFC from a previous car and was wondering if I would/should use it to help with engine management? I have searched but I haven't found any conclusive answers. Just alot of "it sucks", "just buy a _____", but no real info as to why. Whichever turbo kit I go with will probably be used, and may or may not come with engine management. Is this something that I can/should use or are there other options I should consider? I'm not going for max hp or an all out street beast. I want something basic that gets the job done well and is RELIABLE. When it comes to fuel management, I think Ron Popeil says it best..... http://www.smartmoney.com/mymoney/images/ron_pic.jpg "Just set it and forget it!":) |
its dumb to get something other than MSpnp if your OBD1
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From what I gather, the SAFC only controls fuel so you'd still need something to adjust your timing. For not that much more, I'd look into the Megasquirt as it will do both timing and fuel (plus a whole lot more) as well as give you much better resolution of your fueling.
A few people have had success with the SAFC, but I'm not sure they are still around. I wouldn't say the SAFC sucks, but there are much more accurate ways to control fuel. Hell, some people just run higher output fuel pumps and AFPRs (I used to), but at the end of the day it comes down to accurate control which = more reliable/safer. |
Underdog did it.
https://www.miataturbo.net/forum/sho...light=underdog |
I have no problem installing the SAFC, it's the "tuning" portion of it where I lack knowledge lol. Is it possible to just change the FPR, andjust timing, and then i'd be all set? I'd be a little weary of self tuning. I know what the adjustments do, I just don't know how to interpret the readings I get on a wideband, laptop, etc.
Example: Good friend of mine had the AEM wideband on his Evo with an SAFC. I went and rode along in the back seat while a guy was street tuning it. I would see the numbers change on the WB, but I had no idea what the numbers meant at a given rpm. I can push buttons and notice when the numbers change, I just can't tell if what I am seeing is good or bad LOL. I want to be able to drive the car, watch the WB and then be able to realize/think to myself "crap, between 3k-4k I am running real lean. I better change it until I see xx.x show on the WB in that range." |
Originally Posted by w8lifter21
(Post 187445)
I have no problem installing the SAFC, it's the "tuning" portion of it where I lack knowledge lol. Is it possible to just change the FPR, andjust timing, and then i'd be all set? I'd be a little weary ."
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Originally Posted by brgracer
(Post 187456)
That's how the GReddy kit does it for a low (~5psi) boost setup. You retard your timing and add a FPR to raise fuel pressure. No offense, but probably your best option until you understand tuning/WBs a little bit more.
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see my faq, its the sticky in the DIY section.
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Ah, never been in the DIY secton haha. Let the reading begin.....
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One more quick question. Let's say the Greddy kit, does it come with a BOV or are they even needed on such a low boost application?(No I'm not just looking for the Woosh. I actually want to know if it's needed:D)
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Originally Posted by w8lifter21
(Post 187507)
One more quick question. Let's say the Greddy kit, does it come with a BOV or are they even needed on such a low boost application?(No I'm not just looking for the Woosh. I actually want to know if it's needed:D)
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Oh I know, I got the boost bug with my 300zx TT. First few weeks I was like wow, cool this car is quick. Then I took my friends stage V for a spin and it was all over from there haha.
brgracer(or anyone else), if you had to go a different route, what would you do different or what route would you take for a "wanna be turbo" owner like myself? Besides the options stated already. |
I would've bought a used kit minus fuel management, buy some big injectors and megasquirt and then be done with it for a whole lot less than buying stuff new.
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A majority of us purchased the greddy as our "starter set" and moved up from there. With the options in the market today, its silly not to use the BEGI kit for the quality and customer service over the greddy issues (cracked manifold, damn wastegate).
Starting from NA again I'd probably: Turbo base system (begi) + exhaust tune.. enjoy Torsen Add I/C + bov + fuel + boost tune.. enjoy Add bigger turbo later |
I'd probably get a megasquirt setup running NA with larger injectors first with a wideband to get familiar with tuning and then either buy a BEGi S-kit or used turbo setup.
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