Looked at a accell supercoil today , thought it might be a nice idea to toss one on the caddy , maybe with a set of performace wires , but id hate to get rid of the bosch wires i just bought a 6 months ago .

the original coil is in there , with 125k behind it so i figure might be a good maintenace idea to swap it out with something else .

hopeing this might cure a issue i have at drivethrus and traffic in the summer , got the coolant temps down but still get a just off idle stumble ,that feels like an old carb that "loaded up" as i try to accelerate

or i can just bite the bullet and replace the fuel injectors and regulator (what i really think is wrong )

matter of fact im gonna go check the regulator for leakage out the nipple

stoney, i'm using accel supercoil. it doesn't add any hp i'm sure but i like to know i have a hot spark. it looks cool to boot. be careful though. it's tall. i have clearance issues with the intake and the coil. i have to twist things very akwardly to get the TB plenum to sit on the TB snugly, and even then it's resting firmly on the upper radiator hose... is anyone else using one and have clearance issues?

also, i have 8 stock caddy fuel injectors. i bought new ones and i have the old ones sitting around. i forgot to turn them in for a core refund, so now i'm stuck with them. they were working just fine when i took them off, but they also have 122k on them! not much better than yours!

hehe doesnt sound like it , just got done bumping the timing up 3 degrees , man that took awhile , old oil leaks have made a mess down there , even with a new waterpump down there its still pretty gooey ..

doesnt seem all that much faster but i figure if i have to use premium i want my moneys worth . i will admit its a little more spritely tho.

so what happend to your old motor ? mines just fine at 125k ...anything i need to keep a keen eye out for ?

edit , forgot to add i just looked at the area and your right the supercoil will have clearnace problems , maybe drilling 3 new holes in the lower air box where it bolts to the tranny about 1/2 inch forward could free things up

i'm using a custom cold air setup. i just twisted it a little bit to fit it, but it does. i still don't like the snugness on the rad hose though.

just basic maintenance, of course coolant... mine ran like a sewing machine before it had a freak break down. apparently the timing chain broke! who ever heard of that?! i got a $700 quote to fix, and opted for a new motor instead! anyhow, i'm going to tear into my old one sometime far away and fix and sell, or mabye i'll just sell the whole broken thing to some fiero guy for a buildup?

yah that motor with the intake manifold from a allante would look nice in a fiero

i just realized , you said the timing chain snapped , HOLY CRAP !!!!

maybe we can talk bbob into a autopsie on the chain :suspect:

i thought he'd already spoken on the matter, but can't find anything.

i don't think it's something for you to worry about! I don't think there's any preventative thing you can do for that!

thats ok , its not a matter of can but want , and i dont want to go in there after a chain ...she blows she blows but i dont see that happening , sounds very isolated to your engine ...

and if mine does it will give me an excuse to get goodies from ASG

Are you SURE it was the timing chain??? If so, it will be the first one I have EVER seen or heard of on a 4.5 or 4.9. All those engines had powdered metal sprockets on the crank and cam and a very good HD chain. Never saw one break...unless the damper was not pressed onto the crank correctly and the lower sprocket fretted and broke up at the keyway.... If someone had the damper off at one time or anther and didn't press it on correctly and tighten the damper bolt correctly that could have happened but timing chain failures on their own are almost non-existant.

BTW....there is absolutely no power in a coil...nor a hotter or longer or higher voltage spark.... con men writing ad copy causes those beliefs. The coil will only generate the amount of voltage necessary for the spark to jump the gap at the spark plug. With a production engine that will not change no matter what kind of coil you put on. A coil with twice the "potential" voltage (which is what the ads say....like as in a "50K volt coil" ) will still only generate about 20K to jump the gap...same as the stock coil. When engines are modified with much more compression, big cams with high overlap and turned at high RPM then the voltage demand on the coil goes up so a "bigger" ignition is necessary...but if minimal/mild to no mods are made then the stock coil is plenty for that use...way plenty. Save the money unless you like the "look" of the Accel coil.....


If the stock coil has corroded connections or something and is breaking down then a simple replacement with an OEM coil will be plenty sufficient. Replacing a broken part with a "high performance" part does not mean the high performance part is superior...it just means that it works....

yeah, now i remember you saying that... almost word for word oddly enough! i'm not sure, but i can easily check by turning the motor over and watching the rotor, right?

Well, at least I'm consitent with my stories....LOL

Yes, if the distributor rotor doesn't turn then it is a good indication that the cam is not turning...or that the distributor gear is worn out...???....

If the chain is broken I would definitely look for the debris that lodged into the chain to break it...or the lower sprocket that disintigrated. If the lower sprocket is broken up find ALL the pieces and piece it back together to look at the width of the key way slot. It should be the width of the key in the crank. If it is wider, then the sprocket was working around on the crank due to a misinstalled damper (it was not clamping the sprocket) and the wider slot comes from fretting around until it broke due to stress. Then the broken sprocket broke the chain.

Looked at a accell supercoil today , thought it might be a nice idea to toss one on the caddy , maybe with a set of performace wires , but id hate to get rid of the bosch wires i just bought a 6 months ago .

the original coil is in there , with 125k behind it so i figure might be a good maintenace idea to swap it out with something else .

hopeing this might cure a issue i have at drivethrus and traffic in the summer , got the coolant temps down but still get a just off idle stumble ,that feels like an old carb that "loaded up" as i try to accelerate

or i can just bite the bullet and replace the fuel injectors and regulator (what i really think is wrong )

matter of fact im gonna go check the regulator for leakage out the nipple

Hey Stoneage i have accel brute thunder ignition coil in my caddy and this coil is the same as the supercoil but doesn't have any clearance issues it should fit on the stock cap and doesn't make it a pain in the butt to mess with your intake.i got the accel hei disturbutor cap and rotor kit from accel and did the whole thing accel,just a word of caution don't buy their spark plug wire set they are horrible poor connections from the factory,if your gonna get hipo wires get MSD.

just got done bumping the timing up 3 degrees ...doesnt seem all that much faster but i figure if i have to use premium i want my moneys worth . i will admit its a little more spritely tho.
I bet it helped the off-idle stumble though. Did it?

not sure yet . really haveint had a chance to get it good and hot and in traffic .

one thing did concern me , looks like the timing jumps around 1-2 degrees at idle according to my light , never stays dead on , rather bounces around the area desired . Just wonder if thats normal or if i should look into a whole new distrib , maybe theres too much play ?

Why would you need new plug wires after 6 months?? I still have some on my Pontiac from 1988 with a over 100,000 miles.

Put those new Bosches in a box and send them to me. :D

well to get good transfer with new coil but since the new coil wont put out like thought it would im gonna forgo the whole ball of wax .......

im gonna keep my eyes peeled for another fleet anyway so it will probably be around for awhile , those are few and far between

stoney, it's normal for your timing to jump around while you got the light on it. if you put it in set timing mode though, it settles and doesn't jump much at all, if any. maybe your does though.

if you are going to get another coil... like 90deville said, they make drop in coils, and you can use your stock, or near stock cover and won't have any clearance issues. rated about the same kilo-somethings...but apparently doesn't mean much with out stock engines!

ahh good it is normal , wasnt sure . havent twisted a distributor in years . cant imagine how much it would jump if it wasnt in timing mode , i bet it woulda jumped all over the scale

stoney, it's normal for your timing to jump around while you got the light on it. if you put it in set timing mode though, it settles and doesn't jump much at all, if any. maybe your does though.

if you are going to get another coil... like 90deville said, they make drop in coils, and you can use your stock, or near stock cover and won't have any clearance issues. rated about the same kilo-somethings...but apparently doesn't mean much with out stock engines!

think i paid around 50 bucks for it from summitracing and it took about 5 minutes to assemble it and 5 to put the cap back on.cost alittle bit more then a stock coil but it might last longer then the stock one,plus if i wanted to do a igntion system like illumina then i'd be all set down the road.