can we have a tuning FAQ?

[nismo1003]

I"m seaching all the dyno graph and compared from each other. I would like the tuning style from everyone and share their fuel curve and dyno graph. speically the different between street tune and dyno tune. are there any trick to it?

how do you guys tune it for 91 octane , 93 octane and 110 octane? what kind of A/F ratio i should tune at when I have 91 octane? I will be trying H2o injection and Methol injection w/ 93 octane, what kind of A/F I am looking for?

my friend Subaru WRX has a 93 octane curise map for long distance driving, does anyone know about it? otherwise I will probably datalogged from his car and shared on here.

I really want to know this , at idle, what kind of A/F it should be? and what about before it hits boost? let say It hits boost at 3200rpm, what kind of a/f I should look for from 1000rpm to 3100rpm? I heard people running rich to create smoke and help the turbo spool up??? is that true?

thank you advance!

[240sxdriftdaily]

I belive tuning varys greatly with the fuel management you choose.which depends on you Hp goals.Most people use a combo of ecu retune via jwt or enthapyand an piggyback FMU like emanage.I know there are some optimal A/f ratios and timing setting for particular rpms. But I know there is no exact optimal set of A/F for everyone, because these settings change with fuel octane,temp, psi and other parameters.Right?

[DRIFTEADOR]

street tune to 12:1 afr full boost and trim timing 1 degree (91oct), .75 (93oct), or .50 (110oct) per lb of boost. for example, where timing is 25btdc stock, it'd be 15btdc at 10psi on 91 octane. btw, this is a lot easier to do when tuning via manifold pressure as opposed to airflow. anyways thats your basemap. then go to a dyno and see what makes more power without detonating. slowly increase timing until no significant power is made, trim back and leave. same if spraying h2o/alky...increse timing and leave the afr alone.

idle and cruising, if you cruise in closed loop (sensor feedback) should be stoich, 14.7:1; your ecu takes care of that automatically. once load reaches ~-10in. Hg, the ecu switches to open loop where it reads off your preset/tuned maps. I'd start from 13.5 at the lowest load point, 13:1 at athmosperic pressure (0 vac/0 boost), 12.5:1 at 3psi and work my way up to 12:1 at full boost. sounds easier than it really is though. for every cell of load vs. rpm, you have to plug in a different value to achieve the desired afr. the emanage, for instance has a 16x16 scaling, thats 256 different cells.

running rich and retarding timing before boost will make it spool faster, in fact thats how full boost launch systems work (have you tried it yet fiz?), but if you don't have it setup as a 2 step, if its just rich and retarded all the time, you'll be sacrificing driveablility out of boost and possibly turbo life.

[fiznat]

I would love to have an experienced tuner write up a nice, detailed DIY/FAQ on their method of tuning.

Anyone interested in doing that, please email WD or myself and we will do whatever we can to help you, including seeing about getting the article on the front page of NICO, and possibly some other "extras" if you would like.

I would be looking for something well written, nicely laid out (not just one big paragraph), and possibly photos if possible.

Anyone willing to do this or at least help with doing this?

[WDRacing]

I'll make one for the SAFCII, unless someone wants to do a joint effort. i'll have comparisons with water/meth injection and without, with timing retard and without.

We should have several articles all wrapped up into one for each type of tuning. IMO anyway...lol.

[turbo98_240sx]

We should have several articles all wrapped up into one for each type of tuning. IMO anyway...lol.

Like break it down into sections ie... Basics this would inclued compression, a small discription of general things that effect a tune (temp, flow, knock, fuel octane, exc) Timeing control, Fuel basics (flow, pressure, Injector size and Impeadence and pump selection), fuel control advanced (diffrent systems FMU, aem ems, greddy, SAFCII exc.) advantages and disadvantages) and tuning w/ a wide band maybe touch a bit on dyno vs street tuning (tips, advantages) in this as well as tuning for a faster spool vs power vs economy, egt and what it means. Turbo slection and map reading exc., monitering your engine and data logging Alky/water/meth tuning. Seriously this is gonna be a long artical you could do an artical on every one of the things I listed maybe even 2 on some of them. heheIf there is anything I can help w/ let me know but I don't have a wide-band but should get one within a month or 2 at the latest (knock on wood).

[nismofan14]

A detailed list of SAFCII settings would be great. There is a post every ten seconds from somone needing to know the initial settings and starting points. Maybe we could have one for someone using 370cc, 440cc, 525/555cc, with or w/o z32 mafs.

[93RPS13]

emanage anyone please do one on emanage

[deezlins]

I could help with this, I can give a bunch of formulas to calculate all kinds of things (injector pulsewidth, duty cycle, VE, mass airflow etc.), and compare dynos and which dyno is better for tuning etc. I could give an estimated fuel and ignition landscape, and some methods for dyno tuning, and more, thats just some of the things I could think of off the top of my head. This is getting me excited

[virus77]

I guess I could do one on Emanage. Is there any people that are interested in Emanage tuning?

[turbo98_240sx]

Yeah I've got e-manage and as soon as I can I'm gonna get a wideband and start tuning it up to par and seeing what the greddy kit can really do

[Jookmasta]

i have the safc one with 370cc injectors with stock MAF on this end of the spectrum. so any settings needed from this setup are for the world to see. My friend has a wideband and he runs 50lb's with Z32 MAF and safc II. He use to run the same 50'lb with stock MAF and i dont think the settings changed all that much with the upgraded MAF. nonetheless, im sure he would be more than happy to share his settings.