What makes a good cruising rpm for a car?
What makes a good cruising rpm for a car?
Basically its all in the combination and the compromise – just like with anything else motor related. Best cruising RPM relies heavily on cam timing, port efficiency, exhaust scavenging, pumping losses, BSFC/SFC, engine torque characteristics, aerodynamics…the list goes on and on and on.
What’s the cruising rpm of a Chevy Camaro?
Chevy apparently agrees with the HAMB on cruising RPM: That’s right in line with the V8 Camaro the tranny came out of.
What happens if your transmission speed sensor fails?
Should either or both of these speed sensors fail, you may notice one or more of the following 3 issues: 1. Harsh or Improper Shifting Without a valid speed signal from these sensors, the PCM will not be able to correctly control the shifting of gears within the transmission.
What happens when a cruise control sensor fails?
When the sensors fail to deliver accurate data to the onboard computer on your car, truck, or SUV, the powertrain control module (PCM) will send an error code to the vehicle’s ECU. As a safety precaution, the ECU will shut down the cruise control and render it inactive.
Why do the RPMs go up and down at constant speed?
It’s like the rpms are surging up and down but only between 30mph and 50mph. Then it levels off as I gain speed The RPMs surging under a constant speed in that 30-50mph band certainly sound like a torque converter lockup problem. It sounds like the torque converter is locking and unlocking again and again.
What should I do about the RPM fluctuation?
Even though the RPM fluctuation drives me a bit mad, it only occurs at low speeds in automatic. Manually shifting and chanting “serenity now” (Seinfeld) helps. Mechanically, the transmission is operating fine and I can’t justify spending $5k – $6k to have a new transmission installed.
Which is the best rpm for highway cruising?
I was reading the article “Hitting the Sweet Spot” in the latest issue of Rod & Custom. It’s a helpful write up about optimizing highway cruising RPM with rear gear selection and overdrive. The article provides a formula to calculate RPM at any given MPH. It states that about 2200 RPM @ 75 MPH is a good target.
Can a transmission problem be fixed by a do it yourselfer?
Most transmission problems can’t be fixed by the average do-it-yourselfer. There are just too many specialized tools and pieces of equipment you’ll need, and buying this expensive gear just to screw up your first three tries at fixing the thing just doesn’t make too much sense.
