Jump to content
SAU Community

Strange Dyno Results; Limit Of Safc 2 Or Tuning Fault?

Pattey21

By Pattey21,
in Engines & Forced Induction

 Share

Recommended Posts

Pattey21 Proficient

Pattey21

Posted
Posted (edited)

Hey guys got my car tuned today with my recently installed safc 2. Running a turbotech v2 boost controller.

Some strange things going on here

1. AFRs lean initially even though SAFC 2 was setup for no correction

2. I set the boost the night before on 11psi but first run shows levels just under 9psi and then it goes to 11 again after. Is this the tuner removing it initially to minimise risk of problems before tuning.

3. Graph on initial run is much smoother than the final tune the hump at the end is my main concern, is this just the limit of the safc adjusting fuel and effecting timing or bad tuning or something else.as.i notice the boost drops off then almost mirroring the peak hump.

It just seems weird to me besides the AFRS are better.the boost, power and torque curves look better on the initial run.

post-88652-0-68462600-1365768801_thumb.jpg

post-88652-0-15768800-1365768924_thumb.jpg

post-88652-0-07527700-1365768957_thumb.jpg

Edited by Pattey21
Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

at the end of the day you have given the guy a piece of shit solution to a problem.

when you tune with a safc you can only move the afm voltage up and down, its never going to be good like a aftermarket ecu.

stop complaining, and buy a decent ecu. congrats you have now learnt your lesson, just be glad a new engine is not needed.

Pattey21 Proficient

Pattey21

Posted
  • Author
Posted (edited)

i am not complaining saying "why isnt my graph perfect" i know what an SAFC does and that its not as good as a standalone, but they have been proven to produce good results for my modifications.

So if any people with previous experince having SAFCs it would be most appreciated.

Edited by Pattey21
NYTSKY Grand Master

NYTSKY

Posted
Posted

Basically the SAFC is just removing the R&R and changing the mixture slightly. It is not optimising the modifications therefore the end result is whatever the engine combo spits out.

Also Anthony is a tuner and a very capable one.

Pattey21 Proficient

Pattey21

Posted
  • Author
Posted

Basically the SAFC is just removing the R&R and changing the mixture slightly. It is not optimising the modifications therefore the end result is whatever the engine combo spits out.

Also Anthony is a tuner and a very capable one.

Yeah thats what i was assuming, cheers

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Marek
      WGNC34 - floor mats

      By Marek · Posted

      Hi 🙋‍♂️. Just bought my Unicorn but the interior need some minor work so it would match my expectations ;). I noticed it is hard to get used oem floor mats in good condition so i started to dig if there's any chance to buy set of new ones. I found two websites - nengun and amayama and it looks like one can still buy factory new floor mats in Japan, but thers a small issue. Some mats (i assume genuine, oem ones) are marked as G4900 and these are "discontinued". The ones you can buy are marked as G4911 but i have no idea if these are also oem, made by other producer or some lower quality replacements that looks entirely different. Can anyone help? 😃  P.s. there is also some strange indication - 0V005, 0V015 and 0V505. Any idea what does it mean? Would appreciate any help with this 🙏
    • Marek
      Hi everyone.

      By Marek · Posted

      Hi, Marek here 🙋‍♂️. I finally fulfilled my longtime dream - recently bought Stagea and now waiting for it to arrive in Poland. There's only few of these in my country, and one of the owners  recommended mi this forum as a source of all the info i'd need since now i own one  so here i am.  
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Version 1 aluminium airbox is.......not acceptable No pics as I "didn't like the look.....alot" Even after all my "CAD", and measurements, the leg near the fusebox just didn't sit right as it ended up about 10mm long and made the angle of the dangle look wrong, the height was a little short as well, meh, I wasn't that confident that Version 1 was going to be an instant winner I might give Version 2 another go, there's plenty of aluminium at work, but, after having in on and off a few times, and laying in the old OEM airbox without the new pod filter and MAF, there may be an option to modify the OEM air box and still use the Autoexe front cover and filter.... maybe This >  Needs to fit in here, but using the panel, and not the pod, the MAF will need to fit in the airbox though> I'm thinking as the old OEM box and Autoexe cover that is sitting in the shed is just sitting around doing nothing, and they are relatively abundant and cheap to replace if I mess it up and need another, it may well fit with some modifications to how the Autoexe brackets mounts to the rad support, and some dremiling to move it get in there, should give me some more room for activities, as I don't want to move the MAF and affect the tune Sealing the hole it requires to stick it in the air box is simple, a tight fit and some pinch weld will seal it up tight  I am calling this a later problem though
    • Dose Pipe Sutututu
      Ethanol Content Sensor - Always at 11%?

      By Dose Pipe Sutututu · Posted

      and it ends up being already priced in as though you're just on 91RON without any ethanol. Car will lose a bit of economy as the short and long term fuel trims bring down the AFR back to stoich or whatever it is for cruise/idle for the engine.  
    • soviet_merlin
      Ethanol Content Sensor - Always at 11%?

      By soviet_merlin · Posted

      Oh, you are right. But, in Australia E10 is based on 91RON fuel and ends up being 94RON. Hence it being the cheaper option for economy cars. The more performance oriented cars go for the 98RON fuel that has no ethanol mixed in. The only step up we have left then at some petrol stations is E85.
×
×
  • Create New...