how can i bypass the ccc in qjet I know everyones gonna say buy a holley but i dont have any money and wont have any for a while so what are my options? and if not bypass make it run correctly

 

Can't tell you how to make it run correctly if you don't tell us what the problem is

Edit: Just for the thread, to get rid of the CCC he would need to replace the carb and distributor right?

 

You can't bypass it to get rid of computer control, only replace it.

What are the symptoms of it not running correctly?

 

well right now the car isnt operational (broken fuel line) but basically ive been reading that its going to be running extremely rich but i think i have a solution rummaging through my scrap stuff i found a mechanical q jet but it went to 350 or at least thats the last engine it was one would that work with my 305 or do i need to rejet it

 

Putting a qjet that was on a 350 would make a 305 run rich unless you change out the jets/hangars... whatever they're called (im not to knowledgeable on carbs) or else it will be sending enough fuel for an engine with 45 more ci than a 305.

I believe its relatively cheap though, you'll be able to tune it exactly how you need if you have access to a wideband

Edit: you might even be able to take what you need out of the ccqjet and switch them around with the one from the 350, I didnt even see the last part of your post talking about rejetting, so i didnt need to type basically any of that lol... but yes it needs to be rejetted, if i was you i would get it on there without doing it, fix the fuel lines. get it running, then worry about tuning it. itll run, itll just run pig rich

Just wanted to say, the CCQjet is a good carb, it gets a bad rep from backyard mechanics but its far better than a mechanical qjet if you get it running right.

 

yeah ot really is great design but im a simple mechani and dont feel like spending the moeny to get a whole new computer to run it but ill think ill just get it running and then maybe swap parts and keep the ccqjet as parts carb for stuff

 

Wikipedia "Quadrajets use a computer controlled Mixture Control Solenoid that responds to electronic signals from the throttle position sensor, ideal for precise fuel metering and allowing additional fuel under load. The solenoid-controlled metering rods allow the fuel mixture to be very close to optimum"

Makes me think maybe you cant switch them around after all. Ill quit filling this thread up with nonsense for now. maybe someone else will come in lol

 

Ripping out the computer/carb/distributor and slapping on non CCC parts ( that aren't even right for your motor ) isn't your best option. You didn't even tell us what the problem is. The computer's themselves don't generally go bad. I'm pretty sure that's a non issue for you. It's probably something much simpler/cheaper.

You need to give us some info on what the actual problems you're having are. It may not even be CCC related.

 

 

Your going to make so many more driveablity problems for yourself. Think about it, if you can't figure out whats wrong with the car now (when you would be able diagnose using factory specs) what makes you think its going to be any easier when everything is aftermarket and something goes wrong?

 

A CCC carb will work with out the computer. But it will slowly destroy everything under the carb from running full rich all the time. I've personally seen it a guy I knew was always complaining about getting 6mpg with a 305 and when we popped the hood to his truck there was a CCC qjet with no TPS or MCS connected, the wires weren't even there. It ran surprisingly well but the exhaust, rings, cylinder bores, oil, crank bearings, ect surely didn't like it because it needs to be full rich since the primary rods can't move.

fadedirocz28 your guess was right CCC qjets do have different primary metering rods I measured them my self. Don't have the exact info off-hand but checking a 86' Z28 305 rods against 87' caprice 350, showed a difference. Sorry it's vague I checked probably 4 years ago so the details are long lost.

Taking off a CCC qjet and replacing it with mechanical is probably the most daft and popular thing to do with these qjet cars. It's going backwards, you gain nothing and only loose. Any money spent on the conversion could be spent fixing the problem. The only reasons IMO to remove a CCC qjet is if you are going turbo or a radical cam with too much positive overlap.

 

i wasnt having any problems its a total rebuild of a custom car no computer in it the 305 is from another car so dont start ripping me a new one until you know everything i wasnt looking for other carb solutions just curious to see if anyone has ever tried to bypass the ccc before

 

Well, as was already stated, you don't "by-pass" CCC - you replace the carb, distributor, etc.

 

Well I for one am not sure what the OP wants and what he's trying to accomplish and/or has already done. Ctanner, perhaps it would be easier to help you if you gave us all the relevant info upfront and used some dang punctuation in your posts so we don't have to read your lazy 'text messaging' style BS. Post like a normal person or you will not be taken seriously.

Sorry if that sounds harsh, but it's just a pet peeve of mine when people are too lazy to type a coherent sentence and/or ask vague questions without stating all the relevent info needed.

 

Everyone is going to assume there is a problem since you ask in your original post, "what are my options? and if not bypass make it run correctly".

You should in detail explain what you are trying to do you may get more useful help. A post like this is like anything technical, you put crap in you get crap out.

A "custom car" could be a model A Ford, or a Opel ICE racer, or is it one of them "kit cars"? Who knows? 305's were made from 70-something to 02 and came in different flavors.

It doesn't take much to get a CCC qjet to work right but until we know exactly what you are working with it's a guessing game.