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Also fount this archived paper/report. The 1981 EPA Knock Sensor test program...uses a 1980 buick Regal 3.8 turbo as the testbed. An excellent read...some info/paramiters and charts on the ECS's retard capabities!! Mostly MPG and emissions info based on fuel octane. Final pages have relavent SAE...

Just found this. Awesone little article on the story of the ESC and CCC system. Turns out the 81 turbo 3.8 engine WAS the paramiter that every 81 GM ecu was built around...aside from historical worth, you guys see any practical use to be gained by this?

What year intake you using? And would you mind cc'ing it before and after to see how much material the media removes?

Just throwing out some theory here, but given our cars have no form of intercooling, it seems any way to reduce the intake charge temp and keep heat where it is needed wold be welcome. Thermal coated manifolds, turbine housing, exhaust runners, and downpipe would help spool and greatly reduce...

Awesome Freddie, that's the info I needed. I was going off an assumption based on the Q-Jet rating, which is my bad to begin with. Makes packaging the system a stock affair. Judging by other posts, fuel deatomising & puddling at the turbo neck is a big restriction with this design (Rich/lean...

Please excuse the ignorance if more than a little is present, but what about "phenolic spacers" on our cars, given the extreme insulating nature of the material. I have no clue when a higher/lower temp is necessary to prevent de-atomization/aid in atomiation of the mixture on hot air wet cars...

Charlie, I've been looking at aftermarket distributors and MSD box, seems like the easiest and most cost effective way to go. Briefly looked into Coil on plug conversions, but even if I had found a solution for our engines...comparables are spendy as hell, and toe-to-toe with an aftermarket HEI...

Getting away from propane for a moment and back on over to petrol, though still relevant in context. The thing that captivates me about this engine is it's static nature. Your stuck with the intake manifold it came with, pretty much stuck with the turbo (besides 301 hybrid), stuck with the...

Yo Freddie. Propane Gas is what is used most with these type conversions. I see many people term "LPG" in their posts, but when you read through...turns out it's regular propane. I'm still not %100 on what LPG is or means. Here is a list of propane grades...

$1.70 for a pass on a 750 HP motor, wow. Sorry to hear it was mothballed Jay. Learned a little more today. The Impco 425 mixer/carb will flow a max of 460 CFM. Two are needed, and will give more than enough, maxed out 920 CFM. Given it's fuel on demand, it won't effect lower RPM/boost...

And again...we're all learning about this together. Before yesterday...I knew nothing about propane converted vehicles other than the fact that they existed, and the tech has a 70's era Ora around it. It's a completely different animal with some completely different properties from gasoline...

Thanks mat, I appreciate it. Went on a binge yesterday. As far as the Nitrous, no idea. Did some searches, but all i turned up is drag racers who run propane as primary fuel...but inject Nitrous alongside injecting gassoline. That's three separate fuel systems!! Not touching that one. The...

Thank's for the reply Charlie, I understand your hesitation on the subject. Hell, I never considered it before today...The reason all the offroaders flock to it is simplicity and practicality. With the extreme angles they put their vehicle through, regular carbs can be less than...

Been lurking for a while...and I gotta say, as far as forums go, you folks are pretty tight knit. Very nice to see. Since my build won't be started for at least a year (81 Monte Carlo Turbo), and until today I've had nothing to contribute, I've held off on posting. This might be a little long...

Woops...Thread intended for Before black area.