What was the top speed of a 1928 Chevy 4cyl?
What was the top speed of a 1928 Chevy 4cyl?
A hundert years ago or so, there was a guy that ran a ’28 Chev. with a cross-flow ’25 (?) Olds head in a stripped-down Crosley at the Colton Drag Strip. Went as fast as when he ran his V-8 60 in it as I remember. Something like 80 — which was faster than my stock Model A at 52.
How to calculate engine RPM at any speed?
Your vehicle’s RPM can be calculated at any speed as long as you give the tire size, axle ratio, and final transmission gear ratio. Using this calculation, you can match oversized tires with new ring and pinion gears to get the engine RPM at highway speed you desire.
What kind of Head do you use for a 28 Chevy engine?
The “easy” hop-up for a ’28 Chevrolet engine is to use a ’23 Olds head which has two inlet ports and three exhaust. The only issue with using the Olds head is that it has 1:1 rockers- the answer to that would be to mill the rocker shaft bosses and make new ones to use the 28’s rockers (which are rather weak and prone to bending).
Why does engine RPM jump up at 40 mph?
RPM jumps up & back down at 40mph. The most likely cause is that your clutch is slipping. Either because the mechanism isn’t working properly (rare but possible) or the clutch is worn (very likely).
What kind of engine did a 1928 Chevy 4cyl have?
volvobrynk likes this. The ’28 engine is pretty much the pinnacle of early Chevrolet 4’s, but there are some things you can do to it. The “easy” hop-up for a ’28 Chevrolet engine is to use a ’23 Olds head which has two inlet ports and three exhaust.
Your vehicle’s RPM can be calculated at any speed as long as you give the tire size, axle ratio, and final transmission gear ratio. Using this calculation, you can match oversized tires with new ring and pinion gears to get the engine RPM at highway speed you desire.
The “easy” hop-up for a ’28 Chevrolet engine is to use a ’23 Olds head which has two inlet ports and three exhaust. The only issue with using the Olds head is that it has 1:1 rockers- the answer to that would be to mill the rocker shaft bosses and make new ones to use the 28’s rockers (which are rather weak and prone to bending).
Which is better a 28 motor or 27 motor?
The 28 motor has a few more horsepower than the 27 and is more desirable. I believe it was because of the exhaust more than anything else. Compression ratio is really low- like 6 to 1 (can’t remember but you will see that the piston is about an inch from the head at the top). I talked to an expert about raising it.
