I have over 25 years experience doing show quality restorations on musclecar era Mopars and GMs as well as drag racing, engine, transmission, read end building, and show quality body and paint. Currently restoring my Gen III swapped 67 Chevelle, and playing with Foxbody Mustangs. I am also a nationally recognized Thirdgen F-body and Crossfire Injection expert. Located in Glendale AZ.
I just listened to the last 5 minutes and now I feel guilty for being a lazy ass and adjusting the wrong one. Stupid HOA. People already think I’m Fred Sanford with the amount of old cars I have.
@@DarrellHewko Add tension to increase. But DO NOT adjust the pressure without a gauge on it. As little as 1/8 turn can bump the pressure up as much as 5-6psi, and every pump/regulator combination is different.
I also used IAC valve off the crossfire injection style, is that okay? I’m only asking because got my whole car together got it timed 6 degrees btdc and fuel wants to spray until start up then stops spraying
@@CalvinReinhart No. Use the L03/L05 IAC. The pintle is different and the CFI one won’t work on the TBI. And like i told you before, you wired something wrong. Either that, or the ECM or PROM is bad. Check the wiring from the ICM to the ECM. Fuel won’t spray unless the ECM sees engine RPM via the ICM.
wow that was INCREDIBLE. FINALLY someone doing it the RIGHT WAY! Worked on a 03 Chevy S10 (a little different but the same therory) b/c I couldn't find the right ratio anywhere so decided to work on the original (service manual pretty much backed up EVERYTHING you said). Even found out I had an old post-type torque wrench in My Dad's old toolbox. THANK YOU!! LIKE NEW results!!
Hi Joe I’m back, do got it all together and the injectors seem to prime the car and will run for quick second then quit spraying and died. Any suggestions on what could be going on?
Just started the project today! So I have another question, there’s 2 of the idle control valves, where did you run both? Or did you wire them in together
So I’m trying do this set up also on my 82 comaro I have and idk if they make an intake I can swap over to tbi, I’m just trying to get the right parts. Please help
I am curious, when a single line of the mono meter is connected, why doesn’t it get sucked all the way like a straw? Do you have to cover the other end of the manometer?
@@C-64 Because it is a very small amount of vacuum. Water is heavy. The vacuum won’t overcome the weight of the water. The other end stays open, otherwise you won’t get a reading.
Thanks for posting this video. I am converting my 83 LU5 trans am ECM to a 7747 out of a 1990 silverado. My transmission is automatic 700R4. I have the plugs for the 7747, so I am going to solder them in. Would you be willing to send me the pinouts for the 7747 ECM? Great videos!
Fuck these things suck!!!!! I had nothing but headaches with my 84 corvette with crossfire!! Ended up boring and stroking it out! Slapped an LS into it!
So just to be clear; you couldn’t figure out a simple TBI system, you proceeded to bore/stroke an unknown engine that you did not specify, and then you LS swapped it? That’s completely ok if 40+ year old technology is over your head. Thats good you’re comfortable admitting it publicly. There are CFI cars running deep in the 11s for far less than you have into your fanboy LS swap.
what is maximum ignition retard that the stock computer can induce, (afterwards when timing spout is re-installed) computer desperately trying to get to 700 rpm target idle speed, when the thumper cam is at 950 rpm? lol
Found your channel awhile back to learn about my Crossfire. Recently added a 1980 Corvette with a Quadrajet. Most of my experience has been with fuel injection so happy to see this video from you.
@@Joesmusclecargarage Ok my screw head is much smaller than the one in the video. The head is pretty messed up now after the cutting. I’m just looking for a bigger sized head with maybe a nice knurling on it for easy adjustment. Thanks for responding. 👍🏻
@@Joesmusclecargarage ok, so I'm going to have to do the 8746 conversion.😔 It's a bit more difficult for me though, because I'm in South Africa, that's why I was just looking for the original but I hear what you said about availability etc. Thanks for the reply, appreciate it 👍
It's the ports and flow which they did on purpose imo just incase the TPI didn't work out and they needed to increase the HP easily on future models. They just wanted room for upgrades in the future if they stuck with the system and when they didn't you never saw more advanced cfi setups.
You clearly have ZERO UNDERSTANDING of long runner wet intake manifold design and function. I appreciate you making that public for everybody. That is literally one of the stupidest things I’ve read in a long while! 🤣🤣🤣
Could you do a video on how to calibrate the TPS sensor? And I would love to put the new computer in my car like you did on the other video. Just need the wiring diagram.
Joe I just purchased 2 tbi systems because I broke the fuel manage block. The problem is the unites I bought I was told that it was for a 82 corvette however; the tbi's are rodchester 24 and the Vett is Rodchester 22. I believe they are for a 305. Not sure if I should rebuild the 24 and put them on the 350? Good deals are some time not as good as you think. Let know what you think or maybe you can use these Tbi units. If you wish to see the 24 tbi I can send you pics to your email.
@@10rrace All CFI throttle bodies are the same; Rochester model 400. The difference is the injectors. You can swap the injectors accordingly depending on application. I don’t have any use for CFI parts anymore. I sold my T/A about 18 months ago
The surge caused by the cam, that causes low idle vacuum like 10-12in, is because the cam doesn't have enough Lobe Separation Angle(LSA) for Fuel injection(FI). FI requires about 20in of idle vacuum to operate the Fuel Pressure Regulator properly. If it doesn't make enough vacuum at idle rpms to actuate the FPR, there will be around 20% too much fuel being put in, until enough rpms are hit to create at least 17-20in of vacuum. I'm not saying he's doing the idle procedure wrong at all. But, it would run as well as a stock motor if that cam had a few more degrees of LSA. Similar stock factory performance engines, with similar cam specs, run around 116-117 LSA so they can have 20in of vacuum at idle. I don't know why so many aftermarket cam companies haven't figured that out, but I assure you it's a wide spread problem...
Hey Joe, I just saw your channel for the first time. Very nice Chevelle! Just wanted to let you know that I never saw your first comment and definitely didn’t delete it. Many people are having the same problem. But, I’m glad it happened because it made me come on your channel and subscribed.
@@Joesmusclecargarage I know the feeling. Most of the time it’s very hard to put them back together but there is no better feeling when you get them back on the road.
Nice car, looks way better than jabbas rattle can job he's trying to say is on par with a base clear job he couldn't even spray base clear without fing it up probably 😂. I have used valspar on my lightning clone and it turned out pretty good
Tell you what why don't you cut your insults and you do your thing your way and I'll do my thing my way and keep your derogatory bulshit statements off of my page how about that if you like clear coat that's your thing I don't do vintage cars with clear coat because they weren't done in clear coat back in them days bus there's nothing wrong with getting a little bit of a workout for your arms and your hands by getting paint on them one coat of paint and three coats of clear coat is not my style
You don't do anything right, even your insults suck. Rattle can is not even the same as single stage automotive, its junk hack work just like your riveted galvanized steel door skin.
