LT1MAN

iTrader: (6)

i'm hoping someone can tell my why this full price acdelco opti spark took a **** on me after 6,000 miles. me or my mechanic don't know. it went in with the new motor.

Revelation Z28

iTrader: (10)

was it the low res signal?

look for rust under the second cap

Elliott's94Z

iTrader: (12)

Is that the stock opti spark? I haven't had to change mine YET and I am curious to know why I haven't seen anyone upgrade to the opti spak II conversion. Is is a costly upgrade and a big hassle? Don't mean to butt in on your thread bra..

LT1MAN

iTrader: (6)

Elliot, not the stock opti, but it is an "oem ac delco opti". my 383 went in with the newer style vented opti setup about 6,000 miles ago.

revelation, ill have to bring in my set of torx bits to get that cap off, ill check in the morning and post more pics.

Elliott's94Z

iTrader: (12)

Got ya..that really sucks..everytime I start my car I think to myself..Is today the day..

lt1 hawk

iTrader: (2)

I think the same thing to myself as well. For both the opti and the water pump. But I am picking up a new pump next week (to have just in case), got a good deal on it.

Elliott's94Z

iTrader: (12)

I put a EWP on..we will see how long it lasts..hoping a while considering I don't drive the car much.

lt1 hawk

iTrader: (2)

are there any real advantages to an EWP over the stock one?

BALLSS

the rivets are one of the weaker parts of the Opti.

High RPM's are the typical reason rotors get lose. Might want to swap in a MSD rotor & cap. The MSD has screws holding the rotor. Put loc-tite on the threads

You said 'new" motor...

confirm pin on cam is not to long and pushing Opti.

Elliott's94Z

iTrader: (12)

Free's up some hp..I noticed it more top end. I've seen dyno charts with 5-9rwh and 10rwtq gains. Engine stays cooler especially in hot weather. Haven't seen mine go pass 185-190 deg. since the install. They are rated at 2500 hours which to me is good because I don't drive the car much.

Elliott's94Z

iTrader: (12)

check this page out..the guy has his dyno chart up..his is one of many I have seen and they all were about the same
http://www.projecttransam.com/projects9.asp

19mike84

i just install an ewp and i love it too. it runs great

19mike84

installed*

Elliott's94Z

iTrader: (12)

I like to hear that

stevema10631

tell me about the opti problems the first 4 times my waterpumps failed this last time the timing cover seal failed and it filled with oil long live the opti spark

LT1Formula007

iTrader: (66)

Hope you get the car back together man!
I had to replace my water pump a while back and it lasted for about 5,000 miles and the front seal started leaking around the cover that bolts to it. Had to fix that and then the plastic flow valve on the hose going into the heater core started leaking. So I know how much of a PITA it can be to have to replace or redo a job over again. Good Luck!

James

SS RRR

iTrader: (2)

that opti only has 6K miles on it and the outside looks like that?

LT1MAN

iTrader: (6)

yea man i have some oil leaks, my timing cover leaked, the intake and the oil pan. i had those fixed but the pan still leaks some when i get on it.

LT1MAN

iTrader: (6)

hmmm, i see. everything is tight though. the dowel pin has been replaced with the correct length, the first one that was in there was too long but its gone.

projekt70chevelle

iTrader: (4)

What part of the opti does moisture tend to ruin?