I'm trying to settle a dispute with a friend, wanted to see if some of the HT tuners could help me out with.

Motor is a 2.0L GSR motor, 15lbs, sc63, 93 octane.

Tuned very poorly.

Question: With that setup at 15lbs. Approximately what should total timing be??

 

bump for you.

 

bump for you. I have a 2.0 gsr witha a SC61 my tune isnt great either.i think he ran my total timming around 15 deg but im told 25 is safe...hmm wheres MAse when you need him..

 

compression plays a huge factor.

 

ill just throw out about .8-.9 degrees per pound.

 

hes talking baout total timming. 9.1 compresion with hondata and a 3 bar?

 

WTF is total timing?

 

Base advance (set at the distributor) + what the ECU adds on top of that = Total Timing

 

Run 15~18 degrees to be safe.

 

I am running 20.625deg on my stock LS. A/F is 11.0 while in boost. You guys think I should bump the dizzy back a little more? BTW, my hondata retards .75deg per lb.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EE_Chris &raquo;</TD></TR><TR><TD CLASS="quote">Base advance (set at the distributor) + what the ECU adds on top of that = Total Timing</TD></TR></TABLE>

So when I open up my ignition map, do I just find the highest number or what?

 

bump for this thread

 

you got me but BUMP

 

bumpity

 

What are you guys using to retard timing under boost ?

 

hondata

 

Ah ..Must be nice

 

i'd like to know, bump again for you

 

ttt good ?

 

15 psi, 9:1 compression, pump gas...

With a good intercooler, you should be able to get away with high teens (18) to low 20's (~21) degrees of total advance.

However, you say that the car is "pporly tuned," which means we really can't tell you anything. If the fuel and everything else is off, there's no guarantee that 10 degrees of advance would be ok.

In the end you're looking for a good clean A/F ratio (probably 11:1) and high teens of timing advance.

If you have knock monitoring, you're in buisness.

Also, this is obviously just a guideline to get a poorly tuned car in pretty good shape, it won't be perfect.

 

i say no more than 20 degrees with 9:1 compression. the amount of fuel in the mixture plays a huge role in how much timing will be safe also. 20 degrees may be safe with an 11:1 a/f but not with a 12-12.5:1 a/f.
there is also a point where too much timing will cause u to lose power and only a dyno will show this. a car may make more power at 15 degrees than at 20.

 

which way will the timing need to go with a higher C/R?
same setup, lower boost

 

retard (nothing personal )

 

i meant at the same boost. if u lower the boost u may be able to get away with a little extra timing

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18b1hmtlove &raquo;</TD></TR><TR><TD CLASS="quote">ill just throw out about .8-.9 degrees per pound.</TD></TR></TABLE>

Cut that in half is what I run on my car.