anyone know what the highway rpms around 80 mph in fifth gear would be...i need to know whether or not to get a ls fifth gear...my vtec is 5400 currently and i dont want to be driving on the highway over the vtec xover all day long...any help would be appreciated

 

i don't know exactly as i am going only by memory. i believe 80 is around 4000'ish.

 

4,000 (+/- 100) rpm is @ 75mph in an ITR. no?

 

so i should be okay with the type r tranny on the highway from what i gather

 

Are you gonna get the _WHOLE_ tranny or just the _final drive_? As you probably know that the gearing is different between GS-R and ITR... so putting just a final drive on a GS-R tranny will yield different rpm speed. (probably lower rpm speeds than ITR on all gears.)

FYI - ITR tranny allows ITR to hit ~100mph @ 5,600-5,700 rpm (ITR VTEC x-over) using the 5th gear. So, as long as you don't speed over 100mph in 5th, you're find on the freeway. But, doesn't GS-R has a VTEC cross-over at 4,400 rpm?

 

berkel on h-t.com has a JDM ITR final drive in his GSR . . . but then again, i think he has the USDM ITR tranny, but i'm not sure.

either way, i believe he said at 80mph his RPMs were about 4900.

 

about 4000-4100 RPM

 

thanks fellas...by the way i have vtec set to 5400 via ecu reprogramming