crash_ice

Hello guys .
I want to Know how adjust knock spark timing
On the itsx sct tuner.

I really apreciate your help

Thanks

brucesears

On the SFE handheld one of the options is to adjust global timing. You could retard it one or 2 degrees, but if you have SSI tunes Boosted and Shawn say not to mess with it. Contact Shawn and he will adjust your tune. Several guys had to have their tunes adjusted when winter gas hit.

crash_ice

Ok but i hâve to put + 1 or -1 in the sct tuner?
And do i Know it accept the change whitout
Bust my engine?
Thanks for your help

brucesears

Put in -1 or -2, wouldn't do more than -3. The bigger the minus number the doggier it will run. I accidentally put in more than that once and truck ran like crap. Immediately returned to stock setting. If that doesn't cure the knock I would have Shawn give you the fix.

13'TwinScrew

Crash, are you doing since your last engine pooped and want to add a safety net???

If that's it, I can tell you with Shawn's tunes it's not necessary...if you want less timing I would let Shawn do it. Are you running Performance, Street, or Tow??

crash_ice

That is the engine of my friend pop not mine
And i want to try if i can have more timing cause the gaz hère on Québec is 94 octane

Thanks d'or helping guys

13'TwinScrew

I'd still let Shawn do it based off of the datalogs...just my .02.

---timing if you don't know Exactly what you are doing might just be fatal to an engine, lol. If Shawn knows that you are running 94, he might already have added that timing.

Look at your datalogs first....if you don't see a lot of -1 to -2's on WOT then you DON'T have room to add timing. If you are seeing 1-3 (max normally found on any of Shawn's tunes)...DO NOT ADD TIMING. You are out of room to add it.

crash_ice

Sometimes i see -3.5 but not à lot !

brucesears

If -3.5 is all you are seeing I wouldn't add any more. It is already adding timing automatically and can add up to -5.0 if needed. It is safer for the truck if it adds it on it's own. Better for it to add timing rather than having to retard it constantly. If it were me I would leave it alone.

crash_ice

Ok thanks for your help i Will not touch it