duneracerweston
Well-Known Member
Yep have you ever built a motor that pre detonation was caused by the spark plug firing in correct time?
piston choice
- Thread starter 357warrior
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duneracerweston
Well-Known Member
pre ignition or pre detonation depending what you want to call it is by detonation before ignition so if you advance the timing and that causes the motor to build pressure it cant hold is not pre ignition thats just someone being a dumb butt and advancing it way to much with a to high comp motor with weak parts
87warrior917
Well-Known Member
Idk i dont mess with the timing on my warrior motor, simpily because i dont really understand it completely, so why mess with it? I can see where pumping up the compression will bring more power, excpetially on the low end.
Heres a thought, when i bump up the timing on my mustangs motor from 32 to 36 degrees and running 93 octane, it doesnt make a difference at the track. Only thing ive noticed is it starts hard as hell when hot. When its at 33-34 degrees, it feels like its got more low end torque ( 60ft times are better than at 36)
My main question is, is the key mod for these motors the same as adding or taking away timing on a car motor? Seems to me its the same thing. And when to much timing is put into a car motor it will start knocking and eventually pre detonation will accure if to much is added.
Heres a thought, when i bump up the timing on my mustangs motor from 32 to 36 degrees and running 93 octane, it doesnt make a difference at the track. Only thing ive noticed is it starts hard as hell when hot. When its at 33-34 degrees, it feels like its got more low end torque ( 60ft times are better than at 36)
My main question is, is the key mod for these motors the same as adding or taking away timing on a car motor? Seems to me its the same thing. And when to much timing is put into a car motor it will start knocking and eventually pre detonation will accure if to much is added.
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miami1
Well-Known Member
so either way its igniting the fuel in ADVANCE
87warrior917
Well-Known Member
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duneracerweston
Well-Known Member
yes adding timing to these with a vitos key is the same as changing the angle on a distributer on a small-block chevy to advance timing same idea same desire but the warrior if i remember right is only 26 degrees advaced at 6000rpm and danger is 34-38 on these motors without 100+ octain
Miami you have the idea but pre ignition is were the motor fires like a diesel off of compression not the spark from the spark plug and these motors cant hold that much pressure on the up stroke of the piston it just cant hold it
one misconception about octain is that the higher the octain the faster it burns thats incorrect its the other way around you use higher octain fuel because that means that it will go to a higher comp before ignition and also burns slower thats why when you overload a race fuel motor it will burn the pipes out when the excess fuel fires inside the pipes it burns much slower then regular gasoline
and so if a 10.25:comp motor will run ok on 89 octain although its not recommended and it will still run in a +4 degree advanced motor and you can run a 13.5:1 liquid cooled motor on 93 pump i see absolutely no reason you cant run a 10.25:1-11.5:1 with a +4degree motor on 93 without pre ignition
Miami you have the idea but pre ignition is were the motor fires like a diesel off of compression not the spark from the spark plug and these motors cant hold that much pressure on the up stroke of the piston it just cant hold it
one misconception about octain is that the higher the octain the faster it burns thats incorrect its the other way around you use higher octain fuel because that means that it will go to a higher comp before ignition and also burns slower thats why when you overload a race fuel motor it will burn the pipes out when the excess fuel fires inside the pipes it burns much slower then regular gasoline
and so if a 10.25:comp motor will run ok on 89 octain although its not recommended and it will still run in a +4 degree advanced motor and you can run a 13.5:1 liquid cooled motor on 93 pump i see absolutely no reason you cant run a 10.25:1-11.5:1 with a +4degree motor on 93 without pre ignition
87warrior917
Well-Known Member
And thats when you start eating the motor and bending/breaking rods.
[/QUOTE]
one misconception about octain is that the higher the octain the faster it burns thats incorrect its the other way around you use higher octain fuel because that means that it will go to a higher comp before ignition and also burns slower thats why when you overload a race fuel motor it will burn the pipes out when the excess fuel fires inside the pipes it burns much slower then regular gasoline
[/QUOTE]
Agreed on the higher octane burning slower
duneracerweston
Well-Known Member
yep motor part start flying from there
see then i dont understand why it would matter if timing was advanced on a 10.25:1-11.5:1 motor besides if it would pre ignition dont you think vitos would have a warning with it?
87warrior917
Well-Known Member
Its only gonna start to predetonate if the timings is bumped to much. I had no idea the stock warrior timing was that low thou. Vitos dont say what piston or compression should be used with there key?
Theres also an adjustable cam sprocket to further adjust the cam timing... which confuses me more HAH. That would change just the cam in relation to the crank, and the key would just change the flywheel(sparktiming) to crank relation.
Do you have any dynos numbers showing the increase in hp with the vitos key?
duneracerweston
Well-Known Member
nah i dont nearest dyno i know of is 6hr away one way i would love to dyno it after its together
the warrior was never designed to be a power house thats also why cdi's help so much it changes the timing curve and if i remember right advance it one or two degrees top end
cam timing is something you need to have jason explane i understand i but couldnt explane it to save my life
and no the only thing vitos sends with the key is a picture telling you which way to put the key in lol
the warrior was never designed to be a power house thats also why cdi's help so much it changes the timing curve and if i remember right advance it one or two degrees top end
cam timing is something you need to have jason explane i understand i but couldnt explane it to save my life
and no the only thing vitos sends with the key is a picture telling you which way to put the key in lol
87warrior917
Well-Known Member
To be completely honest about the programmable cdi's, i didnt feel much of a difference. Maybe a hair bit more rpms but nothing else than to look good on the back haha. Oh and it puts a rev limiter on when in reverse wich is really annoying
duneracerweston
Well-Known Member
Ha I disconected that lol
87warrior917
Well-Known Member
Well mine never had one untill I put the Dynatech cdi on. You got one too?
I'm offended...........
1998yamahawarrior
Well-Known Member
Hows this for an idea, on a high compression, stroker why chance it(unless you have more money than you know what to do with). I hate to say it, but I think you would be playing with fire, may take a while but eventually you will get burned!!
duneracerweston
Well-Known Member
I'm a fire bug......... I'm gonna run it on mine on pump gas
87warrior917
Well-Known Member
I took it back lol
Yes agreed its where you get much more than that and i get a little leery with advanced timing on 93
1998yamahawarrior
Well-Known Member
Im a firebug to, I just dont have the coin to throw around to do motor work twice. Let alone the possibility of having to replace one.
