Problems with cc305 cam install
Registered User
Joined: Jan 2004
Posts: 195
From: indiana
Re: Problems with cc305 cam install
you must have been talking to jason (liljay) because he is naggin my to change it cause it bounces around alot. not to say that it wouldnt make a diff but how could it just to be curious.
Registered User
Joined: Jul 2002
Posts: 392
From: MT Carmel,IL, USA
Re: Problems with cc305 cam install
Not really sure how but it cured my 89 iroc. maybe a safty issue of some sort telling it not to fire at higher rpm`s as it thinks the oil pressure is not high enough. hey at this point what do you have too lose. Just a thought as this happen to me and replacing the oil sending unit fixed the problem. Mike......
Registered User
Joined: Oct 2003
Posts: 1,454
From: MN/WI
Re: Problems with cc305 cam install
What kind of lifters did you put in? 1/3 of a turn seems like quite a bit. Comp R lifters generally like 0-1/16 of a turn , and stockers or stock replacement sometimes like as little as 1/8-1/4.
Registered User
Joined: Apr 2001
Posts: 174
From: W. Lafayette IN
Re: Problems with cc305 cam install
I'm not saying oil pressure sending unit wouldn't do it, but mine went to 0 at WOT becasue it was sucking the pan dry, and it didnt have any performance issues, this is in a 93 though.
Registered User
Joined: Dec 1969
Posts: 27,725
From: Little Rock, AR
Re: Problems with cc305 cam install
I am wondering how the oil pressure sensor is going to cause a miss on an LT1 f-body. 
On some cars, the oil pressure sensor also has the function of cutting off the fuel pump if oil pressure gets too low, but this is not so on the LT1 f-body. Only one wire comes from the sensor and it goes to the gauge.
On some cars, the oil pressure sensor also has the function of cutting off the fuel pump if oil pressure gets too low, but this is not so on the LT1 f-body. Only one wire comes from the sensor and it goes to the gauge.
Thread Starter
Registered User
Joined: Jun 2002
Posts: 471
From: Evansville,IN,USA
Re: Problems with cc305 cam install
There he is with the oil pressure gauge suggestion, lol. Mike did you get your tranny out? It's nice to see all our local guys in this thread. Ask Flyboy how he likes his car.
Jason
Jason
Registered User
Joined: Nov 2003
Posts: 1,756
From: West Linn, OR
Re: Problems with cc305 cam install
Between this post
And this one!
Did you ever change the filter?? It doesn't show in the list, sorry! If you changed the pump and it ran fine for 2 days, and didn't change the filter, then I think you missed a little something there! That would cause this problem!
Originally Posted by LilJayV10
We put an AFPR on the car tonight and didn't help at all. We set it to 55psi and didn't make a difference, as he mentioned in his previous post he also got a tune for it. I asked him tonight if he has changed his fuel filter and he said no. Maybe the damn thing's clogged up. I'm running out of idea's, hell I think I am out
Originally Posted by LilJayV10
well the car is still not running right. it still cuts out really bad on hard acceleration, mainly above 4000-4500. this is what we have fixed/checked so far,
timing marks
different injectors
AFPR
corrected the install height
checked firing order, like 23 times
adjusted rockers
installed new fuel pump, the car ran better for two days, then started running bad again, at the same time as the fuel pump install, we milled some material off the rocker arms because the S/A part of the rockers were hitting the valve retainer and the roller wasn't hitting the valve
tune
disconnected MAF
different coil/module
drove with a scanner hooked up, I didn't see anything out of the ordinary, timing was fine untill it started missing/backfiring, then it pulled timing out.
could a lifter be collapising under load? the more load the car is under the worse it is.
Any ideas. we have almost literally tried everything.
timing marks
different injectors
AFPR
corrected the install height
checked firing order, like 23 times
adjusted rockers
installed new fuel pump, the car ran better for two days, then started running bad again, at the same time as the fuel pump install, we milled some material off the rocker arms because the S/A part of the rockers were hitting the valve retainer and the roller wasn't hitting the valve
tune
disconnected MAF
different coil/module
drove with a scanner hooked up, I didn't see anything out of the ordinary, timing was fine untill it started missing/backfiring, then it pulled timing out.
could a lifter be collapising under load? the more load the car is under the worse it is.
Any ideas. we have almost literally tried everything.
Thread Starter
Registered User
Joined: Jun 2002
Posts: 471
From: Evansville,IN,USA
Re: Problems with cc305 cam install
yeah, the filter has been changed. I don't understand why it ran fine for two days after the pump install either. its' been a while since I have actually listened/worked on the car, he has true duals with the short bullet mufflers on it, you can't hear yourself think. I think i'm going to get the car at the end of this week or begining of next, put some quiet mufflers on it so I can actually hear the engine.
Registered User
Joined: Jan 2004
Posts: 195
From: indiana
Re: Problems with cc305 cam install
i took the car out today and was driving to liljays house and the street was wet from the rain and i stood on it and of course the tires spun like crazy but no miss. it was spinning the tires and wasnt really under a load is my only guess is to why it didnt miss. cause i can have it out of gear and tach it out and it wont miss but as soon as it is under a load is misses. HELP ME!
Registered User
Joined: Oct 1999
Posts: 356
From: Oakland City, IN
Re: Problems with cc305 cam install
Mike - I'll be up that way this weekend. I would like to take a look at the problem first hand if I get a chance.. I'm going to Calvins wedding on Sat, but I should have some spare time after that. You gonna be around?
Dave C.
Dave C.
Registered User
Joined: Sep 2003
Posts: 627
From: Edmonton, AB, Canada
Re: Problems with cc305 cam install
Originally Posted by meangrn94ta
i took the car out today and was driving to liljays house and the street was wet from the rain and i stood on it and of course the tires spun like crazy but no miss. it was spinning the tires and wasnt really under a load is my only guess is to why it didnt miss. cause i can have it out of gear and tach it out and it wont miss but as soon as it is under a load is misses. HELP ME!