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Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
I'm debating adding an EGR valve to my car since I have to change intakes due to an upgrade over the edelbrock on there now, and 2 of the 3 intakes I'm looking at have EGR. I'm replacing the edelbrock with a Jet 35002 quadrajet (non CCC)- is there much more to hooking it up aside from a vacuum line to the J port on the carb?
My thoughts are the car is mostly used cruising, and EGR may help with the smell coming from LT's and true duals that dump at the axle as well as MPG when I drive 100 miles round trip to my office. Thoughts?
Best thing though, would be a cat. (or cats as the case may be) The carb swap may help as well.
I knew cats would help, but I don't have the room with the current setup. Looking forward to the carb swap! Appreciate it!
Originally Posted by AlkyIROC
EGR is just an emission device. If you don't need it, don't use it.
Thanks!
Originally Posted by ironwill
A better plan might be to run tail pipes all the way to the back of the car rather than having exhaust dumping out underneath.
I know it would to a point. My 5.3 with LT's, ORY, and full MBRP that exits in stock location is as bad or worse than the Z28 , even after tuning VE, MAF, and EOIT. E85 smells good, though
Well if you lived in a hot location I would say the EGR might have a cooling benefit while cruising as its function is to make the cylinder run cooler by diluting the air/fuel charge.
If you bypass the CCC what's gonna control the timing? Are you going to change the distributor to a manual/vacuum controlled also?
Let us know what you think of the JET carb. Haven't heard good or bad of them.
Well if you lived in a hot location I would say the EGR might have a cooling benefit while cruising as its function is to make the cylinder run cooler by diluting the air/fuel charge.
If you bypass the CCC what's gonna control the timing? Are you going to change the distributor to a manual/vacuum controlled also?
Let us know what you think of the JET carb. Haven't heard good or bad of them.
Our temps get up to 100*+ in summer, and well below zero winter.
I picked up another Weiand Stealth- an older, "pre-stealth" model numbered 8004, but it's NOT the 8004 Action Plus, to replace my 8016 squarebore Stealth. I decided the 8125 and ZZ4 intake would be too 'small' for the shortblock I'm building this spring. That decision answered the question for me I suppose.
Most of the computer, wiring, CCC, and all other associated components were removed long ago by the PO, and I finished the job when I cleaned up/repainted the engine bay and k memeber, rebuilt the front end, and installed the current 305 in 07. IIRC, I am running an Accel Blueprint distributor with adjustable vac advance pot. I believe I set it with 1 light and 1 medium spring- all in by about 2800. It's been about 7-10 years since I replaced the "OEM" sourced non CC dizzy so don't recall for certain.
It will probably be a couple months before I get it on. I'll start another thread with that swap.
Figured I would circle back here and report on how the jet performance qjet worked out. So far so good. I literally finished installing it an hour and a half ago. I ended up losing my timing because I had to change out intake manifolds and Murphy's Law loves me. Very frustrating to say the least. First drive from backing out of the driveway and putting her back on the street was much more responsive, smooth and torquey. I did not mess with a single adjustment on the carburetor - all I did was bolt it on, try and get the timing set again, and start it up.
Maybe this week I will get a chance to make adjustments, but she's too loud/dim with blackouts to drive with how late it is and my wife is not going to be too happy when she gets home and finds out all I did all day long was get her trailblazer ready to sell, and "fix brakes" on the Z28. That really means change the intake and carb over and run to town a couple times for vacuum caps and fresh 3/8 line. I did check and add some brake fluid
BTW, it all fits under the flat hood with the L69 cleaner! Old Weiand 8016 Stealth Jet Performance quadrajet New to me Weiand 8004 Stealth
Yea I wouldn't do the egr. There not much use to them. Cap it off. And going carb would be the best imo. The distributor your going vacuum adv? Or what setup you using there?
Yea I wouldn't do the egr. There not much use to them. Cap it off. And going carb would be the best imo. The distributor your going vacuum adv? Or what setup you using there?
I didn't go EGR. Went from Edelbrock to Qjet. Dizzy is Accel blueprint with adjustable can.
I decided the 8125 and ZZ4 intake would be too 'small' for the shortblock I'm building this spring. That decision answered the question for me I suppose..
The Weiand STEALTH is an awesome intake, but it is square-bore so it does not work with a Quadrajet.
I don't know the details for your new shortblock, but if you plan to use this same carb, then consider the #7104 Edelbrock Performer RPM QUADRAJET.
Nice setup you have there. It's what I will be doing to mine.
The Weiand STEALTH is an awesome intake, but it is square-bore so it does not work with a Quadrajet.
I don't know the details for your new shortblock, but if you plan to use this same carb, then consider the #7104 Edelbrock Performer RPM QUADRAJET.
Nice setup you have there. It's what I will be doing to mine.
Both the old intake and new are Stealth. The new one is when they had one of several identity crises...
