36* timing?????
12-01-2004, 05:29 PM
#1
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36* timing?????
My friend says the he runs 36* timing on his pontiac 400. I have build a lot of engines and never run the timing that high it seems to me that he should be burning up his pistions and valves, but maybe I do not know as much as I think. also he is running his cam at 0. Have any of you guys ever heard of runing that much timing?
12-01-2004, 05:55 PM
#3
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RE: 36* timing?????
how come i see in mustang mags guys with blowers that are runnin 18 degrees initial and then 36 overall with snow injectoin or whatever? whats the difference between iniial and overall? thanks, i was wondering why when i got to the track everyone is runnin around 40 degrees of timing?
12-01-2004, 06:02 PM
#4
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RE: 36* timing?????
Most cars run 35 - 40* timing total... initial is the timing at idle, the more rev's the more timing you need to give the motor so it ignite all the gas. Total timing usually comes in around 2500 rpm or so but it can be varied. Total timing is whats important really but you can't set it just by twisting the distributer on a 5.0. On boosted cars you usually run less timing, the hotter the air the faster it will ignite so you run less timing, intercooled cars usually run 21* or so total and non intercooled around 17*, but boost levels compression etc will make that vary. With water / alky injection you can run more timing, the alky not only adds fuel but it also increases the octane rating and the water cools the air charge allowing more timing as well. Many folks run stock timing on pump gas with forced induction and methanol injection - way cool but dangerous on a street car because if the alky injection fails... and you got all that timing.... BOOM! lol
12-01-2004, 06:40 PM
#5
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RE: 36* timing?????
Yea...HP Performance says that after installing their stage 1 kit to set base timing at 18*, and keep the spout connector out...does this seem right? what will leaving the spout out do? just leave the timing at 18* always?
12-01-2004, 07:27 PM
#7
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RE: 36* timing?????
Not much to add, but you can determine to total timing thru trial and error. I recently had to back mine off 3* due to sticky rear tires. I thought I had fuel starvation problems, but it turned out to be too much timing. Went from 38 down to 35 and no more 'missing' symptoms. This of course is naturally aspirated...
12-07-2004, 12:29 PM
#8
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RE: 36* timing?????
ORIGINAL: mdvaldosta
Most cars run 35 - 40* timing total... initial is the timing at idle, the more rev's the more timing you need to give the motor so it ignite all the gas. Total timing usually comes in around 2500 rpm or so but it can be varied. Total timing is whats important really but you can't set it just by twisting the distributer on a 5.0.
Most cars run 35 - 40* timing total... initial is the timing at idle, the more rev's the more timing you need to give the motor so it ignite all the gas. Total timing usually comes in around 2500 rpm or so but it can be varied. Total timing is whats important really but you can't set it just by twisting the distributer on a 5.0.
thanks for you time!!
12-07-2004, 01:28 PM
#9
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RE: 36* timing?????
set your initial timing at 13* at idle with out the spout connnector then when you reconnect the spout connnector you timming will advance when it needs to, it will advance aprox. 35*-38* in the higher rpms.
12-07-2004, 01:32 PM
#10
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RE: 36* timing?????
Set your timing at idle, making sure you can read the marks between 30 and 40 also. Rev the engine past 2500 rpm or more and see what marks are lit up with your light. That value is your total timing. It should stop advancing sometime past 2500 rpm depending on how your distributor is set up...
If its not where you want it, adjust again at idle in the correct direction, lower or higher.
If its not where you want it, adjust again at idle in the correct direction, lower or higher.