KA24DE timing setup?

[AK-Z]

I've posted on ka-t.org and MS forums and no one seems to be answering back.

 

Well anyways. Do I set it up as a Hall trigger as far as tuning is concerned? BTW, I'm using the stock dizzy with internal CAS. And do I set it to 78* trigger angle and 10* fixed angle? Are all nissans setup the same way as far as timing is concerned? Do I tune spark like I would a L28? That would make things a whole lot easier.

 

I can get a bse map for fuel but no one seems to be able to set base timing with the stock ignition system. They can only give me spark maps for 36-1 tooth version.

[mobythevan]

Somewhere on this site is an ignition table from a nissan four cylinder from 240zturbo, James

 

You'll have to look around to dig it up.

[AK-Z]

Grrrr. I can't seem to find it. I wish it was as easy as lopping off 2 extra cylindars.

 

To help me search better and in refference to the zxt setup. Is it setup in a Hall ignition setup or is it a different setup?

[Hugh]

I can give you maps for an SR20 all day...

 

Don't know if they'll help much in a KA, the power band is quite different.

[mobythevan]

Yeah, I couldn't find it by searching either.

 

read this post for general timing tuning

 

scroll down to post #6

http://forums.hybridz.org/showthread.php?t=91006

 

Your question on hall sensor for tuning confuses me a little. From my understanding either the v2.2 or v3 megasquirt will work with the optical trigger input. v2.2 requires the pullup resistor, v3 maybe it doesn't need the resistor?

 

You set up your own trigger angle, so you can set it at 78, 59, 53, whatever you want as long as it triggers ealry enough to allow for your max advance. Example: if you want to run total timing of 40 degrees somewhere in your spark table then you need a trigger that happens before 40 degrees, like 50 degrees.

 

The idea is that you set the trigger angle to say 78 degrees, then you entered a fixed angle of 10 degrees just for setup purposes. Then you crank the engine and rotate the dizzy until you see 10 BTDC on the crank timing mark with your timing light, that calibrates the trigger angle, then you go back in and set fixed angle to -10 which turns off fixed angle mode and lets you run from your table again. Then you can fire up the engine and let it idle, megatune shows you what your current spark advance is and you can verify with the timing light on the crankshaft.

 

This may be stuff you already know, but better to cover everything in one thread.

[Hugh]

STOCK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LOAD RANGE

600 15 15 15 15 14 12 10 8 7 6 5 4 3 3 3 3

800 20 20 20 20 18 16 14 12 10 8 6 6 6 6 6 6

1200 25 25 25 25 25 25 24 23 22 21 20 19 18 15 15 15

1600 35 35 35 35 35 32 30 28 26 24 22 21 20 18 18 18

2000 43 43 43 43 41 39 36 34 32 28 25 23 22 22 22 22

2400 45 45 45 45 42 39 37 35 33 31 29 27 26 25 25 25

2800 46 46 46 45 43 40 38 36 34 32 30 29 28 27 27 27

3200 46 46 46 45 42 40 38 36 34 32 30 29 28 27 27 27

3600 43 43 43 42 41 38 36 36 33 32 31 30 29 28 27 27

4000 43 43 43 41 39 37 36 35 34 33 32 31 30 27 24 24

4400 43 43 43 42 41 39 38 37 36 35 34 33 32 28 24 24

4800 43 43 42 41 39 37 36 35 34 33 32 31 29 25 24 24

5200 43 43 41 39 37 35 34 33 32 31 30 29 28 26 24 24

5600 43 43 41 39 37 35 34 33 32 31 30 29 28 26 24 24

6000 43 43 41 39 37 35 34 33 32 31 30 29 28 27 26 26

6400 43 43 41 39 37 35 34 33 32 31 30 29 28 26 26 26

RPM

This is RS-Enthalpy's map. He said its straight off the S13 KA24DE ECU.

 

Here's the XLS file: http://www.rs-enthalpy.com/tuning/ka-stocktiming.xls'>http://www.rs-enthalpy.com/tuning/ka-stocktiming.xls

 

Here's his website:

http://www.rs-enthalpy.com

 

He is a great and trusted tuner, so any info from him can be taken as correct.

[AK-Z]

Ooooo. That help tremendiously. Thanks.

 

Nevermind of about the Hall setup then. The reason why I asked about that is that the setup looks similar to the 4 slot optical wheel setup, thats all, I just thought you setup this setup like you would a Hall setup and just wanted to comfirm it before I did anything stupid, haha.