Suprakeith Posted May 9, 2013 Share Posted May 9, 2013 Hello been speaking to few people and they have said be idea for me to get AFR gauge and a SAFC so that i can adjust the fueling of n/a supra and get more power, just thought i would ask on here if people have done it and what peoples opinions are please? Quote Link to comment Share on other sites More sharing options...
Shane Posted May 9, 2013 Share Posted May 9, 2013 Most will say that the stock NA map is as good as you will get, but a few years back I recall Ben at Eurospec upped the power on a fto considerably doing this. They used a MAPECU, but the principle is the same. I reckon its worth a try though. I have a safc2 somewhere that we could do a deal on I am sure if you go down this route, just needs a harness or the plug cutting off and it's own loom extending. Think you only need about 6 wires to plumb it in anyhow. Dont know of anyone who has done it on a supra but I would imagine the map is always going to be on the rich and safe side of stoich so possibly the may be some small gains. Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 9, 2013 Author Share Posted May 9, 2013 Thats what i been thinking the map would be on safe side, its def something i looking at for sure. Am thinking of getting afr gauge when get paid then month after a safc. Just trying to find out as much information as possible as am not that clued up on these things Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 9, 2013 Share Posted May 9, 2013 For the very small gains you might get, its not worth the money and aggravation. Besides the N/A runs onlambdaa feedback for a lot longer into the load/rev range than a TT, so you will be constantly fighting the ECU. Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 9, 2013 Author Share Posted May 9, 2013 Well am after as much advice as possible before go ahead and do it, as if its not worth it will save my money for something else for the car Quote Link to comment Share on other sites More sharing options...
Shane Posted May 10, 2013 Share Posted May 10, 2013 For the very small gains you might get, its not worth the money and aggravation. Besides the N/A runs onlambdaa feedback for a lot longer into the load/rev range than a TT, so you will be constantly fighting the ECU. This is very true and good advice. As a side note, when the Civic boys turbo the B18s they use the NA ECU and leave the Lambda disconnected to get round this issue. I personally dont like this, but seems to work ok, I am guessing with it disconnected the ecu reverts to a fixed safe map and then that is tweaked for the extra fuelling required? Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 10, 2013 Author Share Posted May 10, 2013 Dont like idea of running without lamda sensors, but still thinking about this just need more information to help me decide Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 10, 2013 Share Posted May 10, 2013 (edited) If your staying N/A then you will be spending around £300-500 on an SAFC and a decent wide-band lambda setup, just to gain an un guaranteed 3 to10 BHP which incidentally i seriously doubt you would actually notice, You would not need to disable the lambda, Shane was just giving an example of another engine with a turbo added, and if you did it would run the default map for a failed lambda sensor which is pretty rich, In order to try extractract a little more BHP from an N/A you would basically need to tweak fuelingl by richening and weakening it in certain areas of the load/RPM scale, and as i said the problem with doing this is that because the ECU uses lambda feedback until near WOT, and even with lambda disabled, you may or may not be able to compensate enough to actually gain anything useing the SAFC with lambda feedback the ECU will keep readjusting the fueling, it takes someone who competent in mapping to achieve any gains, and as i said even then it may or may not happen, so that is a further expenses you will have to factor into things. Not to mention that you really need to also adjust the ignition timing too, if your serious then i would invest in a decent piggyback of go stand alone there is no such thing as power on a budget when tuning an N/A I'm afraid. Edited May 10, 2013 by Tricky-Ricky (see edit history) Quote Link to comment Share on other sites More sharing options...
JasonR24 Posted May 10, 2013 Share Posted May 10, 2013 Have to agree Keith, I researched this with my NA the whole time I had it and its pretty pointless, Forced induction is the only way unless you want to spend STUPID money by forging the engine, fitting a stroker kit, bigger fuel injectors with ITBs and then getting a really decent ECU. All that just to stay NA is purely just doing it for uniqueness. There was 1 I see in a Japanese magazine that was online that has 400hp with a similar setup but it cost stupid money. Anyway it's your choice Keith but iv been down this road and its pointless. Boost is your friend Anyway ill have to come have a catch up hopefully rocking in the supra Quote Link to comment Share on other sites More sharing options...
Wez Posted May 10, 2013 Share Posted May 10, 2013 Pointless and a waste of money unless you have much bigger plans in the pipeline Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted May 10, 2013 Author Share Posted May 10, 2013 Thats what needed to know,thanks guys i did think it was pointless and waste of money but it was just want someone was telling me, and as i aint clued up on ecu's and things like that thought would ask before waste money. will keep the money and put in towards something else on supra. Thanks again guys for the advice Quote Link to comment Share on other sites More sharing options...
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