Joeker

Ignition timing also affects the air fuel ratio.

Its not simply getting the A/F ratio right first and then dialling in the ignition timing later.

Both has to be tuned simultaneously.

If its turbocharged engine, its even more complicated as variables such as exhuast gas pressure & temperature and manifold pressure plays a part in getting the right set-up

Fast cars needs lots of go-fast bits. But without a competent tuner, its as good as wasted.

     

Speed Demon

Ignition timing also affects the air fuel ratio.

Its not simply getting the A/F ratio right first and then dialling in the ignition timing later.

Both has to be tuned simultaneously.

If its turbocharged engine, its even more complicated as variables such as exhuast gas pressure & temperature and manifold pressure plays a part in getting the right set-up

Fast cars needs lots of go-fast bits. But without a competent tuner, its as good as wasted. [/b][/quote]
Well said!! I initially wanted to learn how to tune my SMT6 myself but when I went through the software I found that there were so many variables to be taken into consideration and since my knowledge about engines is not that good, I decided to leave the tuning to the experts!

Having to do another total rebuild is not something I want to try again! :huh:

     

DJ-EVO3

yo SpeedDemon..

r u using 'perfectpower' SMT6? what car r u driving now?

Do u mind if I ask u to give us some details of what SMT6 can do and help

out cars to do better performance? I mean in detail..

And why do we need it for? what are the benefits?

what makes it differece for our cars with it?

     

taqu

Joeker, can u briefly explain why changes in ignition timing effects air-fuel ratio? I thought it's the air-fuel ratio that determines what igntion timing to be used, coz leaner mixture requires more advanced timing (leaner mixture requires more time to combust)? PS : SMT shouldn't be able tu modify ignition timing on mechanical distributor with mechanical advance right?

     

Speed Demon

Yes, I'm using the SMT6. I'm driving a Daihatsu Charade turbo. I needed it because I'm running higher boost, so I needed a way to control my fuelling. Initially, I used the Apexi blue screen SAFC, but I didn't really feel any difference and my fuel consumption remained the same.

So I switched to SMT6. One major difference between the SMT6 and SAFC is the fine tuning you can do with the SMT6. The software is much more informative and intuitive compared with what you can see on the SAFC screen. My car ran much smoother, I could run higher boost more safely and my fuel consumption actually decreased when running at 1.0 bar(when compared to using the SAFC).

But frankly speaking, piggyback ECUs are only really worthwhile if you have done quite major mods to your car which requires detailed A/F tuning. Otherwise, its not really necessary.

In my case, I'm running higher boost, larger injectors and an external fuel pump. So I need it.

Visit Perfect Power website for more details on what the SMT6 can tune. Hope this helps. B)

     

DJ-EVO3

thank you SpeedDemon... I really appreciate ur helpful comments from

your experience...

thanks dude.. I like ZTH because of the people like u here.. sharing all the

useful info from real experiences..

     

tkk

so is your SMT6 using MAP sensor?

     

jinkl

doesnt replace MAF with MAP

     

SePaT

woi buang laa smt engko tuh masuk laa microtech kekekekekek



how fast do u want laa.. isk isk... 150whp on 1.6 satria twin cam still not enuff haaa??? aiyooo.. u want to tapau vtec .. isnt it?? :ph34r:


ppl.. if u wanna know.. this guy got a sacry 1.6 dohc with beribu lemon ponnies inside.. hehe he wished to optimised his 1.6 up to nowhere laaa... kekekeke :lol:

     

satria~95

Speed Demon where u tuning your car. SMT also can control fuel and ignition no need safc and itc.

     

Speed Demon

Not a problem. That's what forums are for. But don't just take people's word for it. Go do some research yourself and talk to the tuners too.

tkk: No, I still retain my MAP sensor.

     

tkk

Not a problem. That's what forums are for. But don't just take people's word for it. Go do some research yourself and talk to the tuners too.

tkk: No, I still retain my MAP sensor. [/b][/quote]
cool man..

so long never heard from you. so what turbine you using it now?

i my self also got do some research on the SMT6 even i downloaded the software n play around on my friend car... smt6 have 8x16point to tune analog MAP + injector Map + Ignition Map

very cool. but i think is not easy to tuner without dyno show the AFR...

     

Speed Demon

cool man..

so long never heard from you. so what turbine you using it now?

i my self also got do some research on the SMT6 even i downloaded the software n play around on my friend car... smt6 have 8x16point to tune analog MAP + injector Map + Ignition Map

very cool. but i think is not easy to tuner without dyno show the AFR... [/b][/quote]
Hehehe...sorry dude, but I've forgotten who you are. :P
I'm using a hybrid turbine now.

True, tuning on a dyno is much easier. GT Auto tuned my car on the road before this and recently I did a A/F reading on a dyno and found out I was running really rich at the higher revs. I'm supposed to go see them for some fine-tuning actually, now that they have their own dyno, so that my fuel consumption will be better and also perhaps get a few more hp. ;)

     

taqu

Wow, the software looked impressive, tuning looked easier & more refined than SAFC, provided that a laptop is available :)