opti spark failing at 6500rpms

[JerzLT1]

so as most of you know on my 6th run at the track rental i had some issues and had to be pushed onto a trailer and towed home (thanks to everyone that helped). well my opti spark failed at 6500 rpms going through the traps and this is the after math. MSD cap and rotor are on the way so i should be back at the track within a week

[LTb1ow]

Awesome!

Something to look forward too!

[S.J.SLEEPER]

are you sure that was the fail of the opti and not bad engine part causing it to shatter like that.

[LTb1ow]

are you sure that was the fail of the opti and not bad engine part causing it to shatter like that.

Yea like that bad engine that kept blowing trannys... oh wait... :rofl:

[JerzLT1]

are you familiar with the LT1? theres really not anything on the engine that could cause it to fail like that

[Blackbirdws6]

Interested to see how the MSD holds up with your car.

[JerzLT1]

Interested to see how the MSD holds up with your car.

as am i, hopefully it works well

[S.J.SLEEPER]

DAMN....... i got ripped on while i was away.
YeS , i am a ls1 nuthugger & proud of it. and.............
...........
umm........ for your information there is parts on the engine that could make the opti go bad.

1. bad water pump (not this yours cause it cracked, didn't take a s*** from coolant entering it.)

2. bad seal getting oil into opti ( not your case either)

3. beat cam bearings,beat cam, excessive play causing a high vibration in the opti causing it to shatter. (high rpm you may not feel vibration in the car.) oh wait...... its an lt1.... everything vibrates, rattles, clunks, & knocks !!!

4. could be just old opti and due to heat it came apart.

i dont know the history or the car and what is done to it. if its a stock or old opti very well could do what it did.

hey, and i rather rip my trans out 10 times than replace a outdated, ineffecient , FTL optispark anyday.:rofl:

[LTb1ow]

as am i, hopefully it works well

Same. Prob be doing that this winter.

[JerzLT1]

DAMN....... i got ripped on while i was away.
YeS , i am a ls1 nuthugger & proud of it. and.............
...........
umm........ for your information there is parts on the engine that could make the opti go bad.

1. bad water pump (not this yours cause it cracked, didn't take a s*** from coolant entering it.)

2. bad seal getting oil into opti ( not your case either)

3. beat cam bearings,beat cam, excessive play causing a high vibration in the opti causing it to shatter. (high rpm you may not feel vibration in the car.) oh wait...... its an lt1.... everything vibrates, rattles, clunks, & knocks !!!

4. could be just old opti and due to heat it came apart.

i dont know the history or the car and what is done to it. if its a stock or old opti very well could do what it did.

hey, and i rather rip my trans out 10 times than replace a outdated, ineffecient , FTL optispark anyday.:rofl:

Electric water pump. NEVER heard of oil getting into the opti from the back. you have the same chassis in an LS1 car so everything vibrates, rattles, clunks, and knocks in your car too. the opti had less then 100 miles on it. well see what happens with the new cap and rotor.

BTW didnt you just blow up an LS1? :) its actually a VERY accurate ignition just in a poor location

[LTb1ow]

Electric water pump. NEVER heard of oil getting into the opti from the back. you have the same chassis in an LS1 car so everything vibrates, rattles, clunks, and knocks in your car too. the opti had less then 100 miles on it. well see what happens with the new cap and rotor.

BTW didnt you just blow up an LS1? :) its actually a VERY accurate ignition just in a poor location

Oh yea? What happens when you go past 7k...? :lol:

[S.J.SLEEPER]

well we seen what happens when you go 6500 rpms. maybe the rest of the engine will come apart like the opti @ 7k

and btw (I) didn't blow up my ls1(& its not a ls1)
fpr busted diaphram causing cyinder full of fuel ='s broken rod.

I just blow up transmissions & rears due to the h.p. the almighty
(ls1) puts out.

don't get your painties in a bunch ltnone boy

[JerzLT1]

the PCM ****s out, not the opti. theres people that spin it to 10k with aftermarket computers

[LTb1ow]

well we seen what happens when you go 6500 rpms. maybe the rest of the engine will come apart like the opti @ 7k

and btw (I) didn't blow up my ls1(& its not a ls1)
fpr busted diaphram causing cyinder full of fuel ='s broken rod.

I just blow up transmissions & rears due to the h.p. the almighty
(ls1) puts out.

don't get your painties in a bunch ltnone boy

Your car run yet? :lol:

[S.J.SLEEPER]

on a serious note.... what brand cap & rotor was on it?
if your pulling car thast kind of r's you should be using a piece of s*** aftermarket replacement part. oem gm part or msd/accel.
not a autobone or notsoadvanced auto chinese part

[LTb1ow]

It was a GM unit.

[S.J.SLEEPER]

the PCM ****s out, not the opti. theres people that spin it to 10k with aftermarket computers

and with aftermarket crank trigger style kits.

[S.J.SLEEPER]

yeah it runs, just doesn't move !!!
it'll be back on its bumper soon

[LTb1ow]

yeah it runs, just doesn't move !!!
it'll be back on its bumper soon

Ahaha... sure. I bet a vette could embarrass you. :moon:

:rofl:

[S.J.SLEEPER]

Ahaha... sure. I bet a vette could embarrass you. :moon:

:rofl:

yeah i think a lt1 vette got me covered

and yeah i lied...... car doesn't run, car's on the lift and just yanked the trans out and the carrier out.

again..... workin on that pos LS of mine

[JerzLT1]

on a serious note.... what brand cap & rotor was on it?
if your pulling car thast kind of r's you should be using a piece of s*** aftermarket replacement part. oem gm part or msd/accel.
not a autobone or notsoadvanced auto chinese part

yes it was a full GM unit, because it was just the rotor that went im going to throw a MSD cap and rotor on it (the metal piece is bolted to the rotor rather then using plastic rivets) and see how that works, if it happens again then i know i have a problem and ill go from there. i dont buy cheap parts :) i spend too much on my car to cheap out somewhere

Edit: i know i should probably replace the whole unit but i can have it out in 10 mins (literally) so it going in and out is no big deal to me.

[S.J.SLEEPER]

you should check for excessive play on the camshaft before reinstallin it.

[BigAls87Z28]

WHOA!! Our Ignition parts are Wells units.

[sweetbmxrider]

i'd like to see how the msd holds up too. kinda sucks it blew apart cause my rotor screws have red loctite on them :-?

[Stupercharged]

its actually a VERY accurate ignition just in a poor location

He is correct Opti is a great ignition system the only problem us LT1 guys have is its in the worst location possible making it a pain in the ass. If we didn't have to remove half the things in the front of the engine i'd say it would be considered pretty damn efficient

[Pampered-Z]

JerzLT1,

Make sure you check the optical disc was not damaged. having the rotor come apart could have done some damage to the opti side, and if the disc made contact with the sensor it will be toasted.

What mods are done to your engine? How old was the opti? Pretty rare for them to come apart at that RPM, most often yu have to go closer to 7K.

One thing that I've dealt with in a few cases where having too long a drive pin has caused the plastic to break. Double check the Dowel, should be .620" to a MAX of .685". I also try to stay around 650"

[JerzLT1]

JerzLT1,

Make sure you check the optical disc was not damaged. having the rotor come apart could have done some damage to the opti side, and if the disc made contact with the sensor it will be toasted.

What mods are done to your engine? How old was the opti? Pretty rare for them to come apart at that RPM, most often yu have to go closer to 7K.

One thing that I've dealt with in a few cases where having too long a drive pin has caused the plastic to break. Double check the Dowel, should be .620" to a MAX of .685". I also try to stay around 650"

the disk looks clean and straight, its a Heads/cam stock short block LT1 and the opti was less then 100 miles old. its a 96 so it should have the shorter dowl pin right? it looks like its just under .5 but i could be off since the light isnt the best

[JerzLT1]

installed opti and before the water pump and everything went back on i tried firing it up, optical sensor must be fried. some cyls are firing but not even enough to start or idle, just a few chugs here and there. sending it back for a new one tomorrow

[sweetbmxrider]

oh you just did a cap and rotor? yeah the rotor dust might have killed the sensor.

[JerzLT1]

i was taking a chance but wanted to get the MSD cap and rotor anyway because the rotor is a better design, itll be shipped out tomorrow and should be covered under warranty

[LTb1ow]

So you live 5 minutes from Atco right? 8-)

I am worried for my GM unit on spray.

[Blackbirdws6]

So you live 5 minutes from Atco right? 8-)

I am worried for my GM unit on spray.

Mine does it.....and its the factory unit with 75k and it's been through a water pump failure. I know I just set myself up for failure with this comment. I'll be placing my order soon ;)

[sweetbmxrider]

:rofl:

where'd you get the msd cap/rotor from? how much it run?

[JerzLT1]

Summit it was 150 and yes Iive 5 mins from atco, just bring a spare opti I have tools

[LTb1ow]

Sweet, I guess I will dig out my stock one. ;)