I have a d16z6 with a 14b turbo running 19 degrees timing at 12 psi. on 93 octane pump gas. ran a 12.6@110

if I pump 114 octane race gas what timing can I run? (ie 23?)
how many degrees advanced.

 

Good luck dude, i've asked this question 5 times in on 5 forums...... People are going to spout the usual... "I don't know get it t0000000ned by Ma$e y0"

There has to be a general rule of thumb reguarding higher octane and timing advance, but getting it out of someone reliable is like pulling teeth.

 

Honestly why not take it to the dyno and keep adding timing until you stop making power on the race gas or start pinging. That will be the best way to know for sure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alexsracing &raquo;</TD></TR><TR><TD CLASS="quote">I have a d16z6 with a 14b turbo running 19 degrees timing at 12 psi. on 93 octane pump gas. ran a 12.6@110

if I pump 114 octane race gas what timing can I run? (ie 23?)
how many degrees advanced.
</TD></TR></TABLE>

You basically answered your own question...You could probably even go to 25-26, but some sort of knock detector would obviously be your best tuning tool...

 

Because some of us are cheap bastards... and just want a general rule of thumb....

For those of you who have taken your cars to the dyno and added timing until it quit making power, how much timing did you finish at? What octane gas?

All it would take is a few responses to get a general rule of thumb going.

I'll throw mine in there... B18C, 9psi on a T3/T04e, 110 octane, it quit making more power around 29 deg... I backed it off to 27.5. I'm just wondering if others are seeing similar results, or if my timing was/is way too agressive.

 

Gitwidit's car (craig) had a mere 14-15 degrees total timing on race gas when it made 400 whp on c16 gas. The timing seemed abnormally low but the car didnt make any more power when we added timing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR981002 &raquo;</TD></TR><TR><TD CLASS="quote">Because some of us are cheap bastards... and just want a general rule of thumb....

For those of you who have taken your cars to the dyno and added timing until it quit making power, how much timing did you finish at? What octane gas?

All it would take is a few responses to get a general rule of thumb going.

I'll throw mine in there... B18C, 9psi on a T3/T04e, 110 octane, it quit making more power around 29 deg... I backed it off to 27.5. I'm just wondering if others are seeing similar results, or if my timing was/is way too agressive.</TD></TR></TABLE>

There is no general rule of thumb and to create one would be a very stupid idea. Thats right up there with driving hard on a basemap that worked for someone else. Not only do the different brands of petroleum (gasoline) differ in quality, but every motor is different. Theres just to many variables to create a general rule of thumb.

I dont mind the idea of a timing thread where everyone listed what their total timing was after being tuned as well as with their setups. If I were you I'd just get some c16, burn a chip with another 4-5degrees more timing, take it out and drive it, repeating the process until I either started detonating or power stopped increasing on the butt dyno.

 

That's funny... I always hear:

NEVER BOOST ON A BASEMAP!!!!

That idea works until you actually try to tune your car.... what do you think your doing the first time you hold your breath and enter boost to see where your AFR is??? That's right, EVERYONE starts off by boosting on a basemap, I don't care who your tuner is, they all start of with a good guess, otherwise known as a basemap.

I think reading your sparkplugs would also be a great idea when advancing your timing in boost.

I'm not trying to write the timing bible here.... Just trying to average what has worked for others so it can be used as a starting point, Just like a basemap is a starting point. No point in re-inventing the wheel.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR981002 &raquo;</TD></TR><TR><TD CLASS="quote">
I think reading your sparkplugs would also be a great idea when advancing your timing in boost.
</TD></TR></TABLE>

The plugs will never lie to you.

Phil

 

remember its a sohc

 

this is my educated guess... 1.6 SOHC on 114 octane @ 12 psi...... (drum roll......) 24-25*? then check the plugs..

i say this b/c thats what i would try high octane....

good luck

 

That sounds like a good guess to me, not overly agressive IMO.