I was wondering what is the timing of a stage 2 s/c during crusing and at wot?

 

It changes when you are cruising depending on what level of boost your at and what rpm you are at. But when your wot in a stage 2 car the timing is set at a max of 15 degrees.

Edit: If you want I can post a screen shot of the stage 2 high octane map so you can see how it works.

 

im saying not in boost at crusing. In vaccum

that would be great

 

It still depends at what cyl air mass your at and what rpm you are at. We will say roughly 30-40 degrees though if that makes you feel better.

 

o ok i got you. So i adding so timing at wot would increase my hp and lowering it would increase tq? That was hear say and im just trrying to understand it

 

Less timing down low=torue
more timing up top=hp

 

If you are not running methanol injection though you can't really increase your timing all that much over the stage 2 file otherwise you will have knock. If you get methanol injection you can add up to 10 degrees of timing ontop of the 15 in stage 2 for a total of 25 degrees of timing.

 

o ok. How many counts of knock would i get by rasing timing with no meth

 

It all depends on how much timing you are running and what afr you are running. But either way, you want 0 degrees of knock at WOT.

 

well im stage 2 strictly. I have the gm canned tune. So my afr at wot is around 9.6 as i dont have a wideband.

 

You can run around 18 or 19 degrees with a conservative AFR and not have any problems.

 

I have seen cars knock with 19 degrees so be careful on that. Basically just increase it a degree at a time and see when and where you get the knock. You should be able to run 17degrees on 93 octane no problem.

 

22-24 degrees depending what i feel like the day i put it on the car without knock without meth injection

 

I have never seen a car take 24 degrees of timing without knock WITHOUT methanol injection, thats just crazy. Got any logs?

 

im at 24* of timing, no knock....didnt even see any knock during the tuning process. but i have meth, h/e, 2 step colder plugs...lol.

 

Exactly anyone running meth can see 24-25 degrees of timing no problem, but without meth 99% of cars WILL knock with that much timing.

 

No my bros stg2 srt4 runs 30 plus degrees timing with no meth nor any knock. That's how much timing the pull stock stg2

 

indeed....without meth...when i had stage 2 on the m62 i got to 17-19* and i seen some knock...so i had to back it down. I highly doubt buddy is making 24* of timing without meth...if he is he probably has 6* of knock.

 

agreed.

 

How does meth stop u from having knock

 

my 07 gm stage 2 ran 22* of timing w/ no knock, i dont know how or why but it ran great

methanol is super high octane(116 octane rating). remember octane is resistance to detonation

 

meth helps the iat2 stay low, this making it less of a chance of knock. By having no knock and lower iat2 u can put more timing, more timing makes more power.

 

Actually the distilled water helps cool the iat2's down and the methanol acts as a higher octane which in return helps with detonation. The higher octane you run the more timing you can run. Methanol has an octane rating of like 116, so this really helps when running more timing. This is also why its recommended to run 93octane or higher on gm stage 2/3 vehicles, because they have higher timing maps 15 degrees to be exact. So if you want to run 25 degrees, 10 degrees over stage 2 timing, you really should be running methanol injection.

 

So could u run a higher octane like e85 and have no meth but still have no knock n pull 10* of timing

 

You can run higher octane fuel without meth and run higher timing yes. You could run race gas or e85 and run a decent amount of timing yes. However how much timing really just depends on what your motor likes and what octane fuel your using.