Actually you need to know more tuning with a computer. It's all the same in the end tuning for timing and air fuel mixture, but you just have alot more control of it.

When tuning the carb, you get to tune it in for one setting. With the computer you can change the time to get the most gains every 100 or so RPMs. You may be able to have 23 degrees timing at 4300 RPM but may need to pull a degree or two at 4400 RPM for some kind of KR reason, maybe boost or heat.

Plus being able to control the fuel at those same RPMS per injector!! That's just crazy control over the engine. If you are running lean at higher RPM's just being able to add more fuel in one problematic cylinder than tuning the carb so it affects all cylinders at all RPM's.

Just awesome. It does take quite a bit getting used to though.

 

Alriiiighty then.

 

04, didn't really mean to implyanything about knowing more.

The comment was mean to implay that it is a different and dying "artform."

 

I also remember the gas milage I used to get tuning in like that as well. You still need to drive around, but now you need to scan for KR rather than listen to it as the PCM will automatically retard the timing on you if it detects it. Tuning electronically is a pain in the *** due to all the control you have. You advanced timing a few degrees and you could tell when you were on the money, but what happens if you only want3 degrees of timing at a particular RPM to acheive max power and you accidently type a 33. So at 5900 RPM you are at a max of 3* timing and it jumps to 33*? Can you say blew the engine?

It's not always as easy as it seems when you can consider all the errors that can occur.

With great Horsepower comes Great Responsibility.

 

With all due respect, I guess buddy.

But I drove my self-installed, self-dialed in my ear, 600cfm Holley,Edelbrock V-8for over 150k miles at wot with leaded gas.

Engines nowadays so pussified and are definitely not grenade proof, so I guess I need to conceed and admit that they need smarter people and computers to keep them running.

They just don't make em like they used to.

 

I agree that the tuning by ear is a definately dying artform.

I noticed it when I was trying to tune my 74 Case tractor. Ended up being my timing rod in the tractor is shot so needs to be replaced.

 

Oh how I miss the 4 bolt main.

Used to be able to get a rebuilt for $400.

Now they are almost priceless.

 

I would love to say something similar, but I don't know a single spot I could run wide open that long.

Best I ever did was a 20 mile hop from Appleton to Green Bay in 8 minutes in my 87 Z28 Camaro. It had the 305 Tuned Port Injection and I swear the SOB drank a 1/4 tank.

 

LOL, obviously I didn't run 150k straight out.

I did drive from LA to Mammoth Mountain which is about 350 miles in 4.5 hours straight through in my ear-tuned Chevelle.

I did drive to Vegas which is 250 milesstraight through in under 3 hours in my ear-tuned Chevelle.

All part of the 150k.

 

How many tanks of gas was this? Damn solid engine not to have heat problems.