3.73 gears with stock 25 inch tall tires will turn about 3500 RPM at 65 MPH, 26 inch tall tires will give you about 3400 RPM at 65 MPH. That can make the gas gauge seem like it moves as fast as the speedo.
Need Ideas on How To Make My Olds Faster
- Thread starter MegaOlds
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You could be right but if if that where the case i think he'd be posting up about driveability issues...i hope. Lol
since you just want some get up and go, i would recommend a rather large procharger it will get you moving no matter what gears you have in there...now after it separates the heads from the block you can get the specs of your engine
Since you have a TH350C, you can get away with a 3.42 gear. It means
2600 rpm at 60 mph with stock size tires with the converter locked. If it is the late 70's 350, it will be sluggish especially when worn out.
2600 rpm at 60 mph with stock size tires with the converter locked. If it is the late 70's 350, it will be sluggish especially when worn out.
While the 2.14 does make for a dog, I'm casting another vote for a tired or out of tune engine. I've seen more than one olds engine wake up just by replacing the timing chain. Make sure the engine has a clean bill of health before throwing money at it. Have you done a compression or leak down test? Is your carb in good shape or do you have any vacuum leaks?
I've had cars with 3 speeds and 3.73's and I won't even do that again.
I've had cars with 3 speeds and 3.73's and I won't even do that again.
From my experience putting an Edelbroke carb on an Olds is a step in the wrong direction. The performer intake is a decent piece but their carbs a junk IMO. A nice 800 cfm Q jet properly tuned should wake it up and you will still get decent fuel mileage. Here is a short list of things I would do that should wake it up and put the car in the 14's
1) change the rear gear (with your trans I wouldn't go any higher than 3:42. 3.08's would also be an option
2). Toss the E broke carb in the trash. Find a Q jet and set it up with the right metering rods (not hard to do)
3). Add headers and low restriction exhaust. Ditch the catalytic converter if you can.
4). Install a mild cam. An RV cam would likely be a good option with your low compression / smog heads
1) change the rear gear (with your trans I wouldn't go any higher than 3:42. 3.08's would also be an option
2). Toss the E broke carb in the trash. Find a Q jet and set it up with the right metering rods (not hard to do)
3). Add headers and low restriction exhaust. Ditch the catalytic converter if you can.
4). Install a mild cam. An RV cam would likely be a good option with your low compression / smog heads
I may just do 3.42 gears then. I know the gears def have to be changed. I drive this car maybe 3 times a month in the spring summer fall. That should be ok
2.14
It's a 77-80 350 block, the numbers you posted for the heads aren't the ones I was referring to. The ones I'm referring to should be along the lines of 554716 if they are original to the block and should have a 3A cast on the left side if looking from the exhaust side. http://wildaboutcarsonline.com/cgi-bin/pub9990262549620.cgi?itemid=9990371596524
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