RPM's at speed

[simy15]

HI, I am looking into buying my first tr6. I commute every day and a stretch of it is on the interstate, I was wondering if I could drive 75 and not have the engine screaming the entire way. Im going to buy one that has the overdrive...

Thanks, Erik

[lfmTR4]

Erik,

Overdrive will drop the RPM's quite a bit but it depends more on the exhaust. Many exhaust options out there, stock being the quietest I have heard. But hey, thats what TR's are all about.

Lou

[trg69]

You have no problem cruising at 75 with overdrive.
My overdrive numbers may stand correction, however it's not far off, with stock diameter tires of 185R15 or 205/70 15 and no overdrive in 4th gear you are going 21.2 MPH / 1000 RPM. At 75 your tach should read 3538. With overdrive, reduce that number to 78% or 2759.

[Aldwyn]

Ditto... in my commutes to work, I have had her up to 90 with OD engaged, and the engine wasn't winey about it at all.