okay so I was wondering is there anyway to have a 6th or overdrive gear for an ITR? or maybe having the 5th gear a higher ratio so I'm at lower rpms cruising on the freeway?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Surfer_Sandman &raquo;</TD></TR><TR><TD CLASS="quote">okay so I was wondering is there anyway to have a 6th or overdrive gear for an ITR?</TD></TR></TABLE>

No

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Surfer_Sandman &raquo;</TD></TR><TR><TD CLASS="quote">or maybe having the 5th gear a higher ratio so I'm at lower rpms cruising on the freeway?</TD></TR></TABLE>

Yes

 

You can always spend more than the car is worth and get (if you can source one) a Quaiffe 6spd sequential FWD gearbox.

Of course an LS 5th gear would be the most cost effective way of reducing revvs on the highway.

I must ask though, why are you so concerned about highway revvs? It does not affect fuel efficiency nor engine wear, at least an any measurable amount.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">
I must ask though, why are you so concerned about highway revvs? It does not affect fuel efficiency nor engine wear, at least an any measurable amount.</TD></TR></TABLE>

 

well when I'm cruising at 85 or 90 I'm at close to 5k so I though if I reduced it then I would get better gas mileage. at least once a week I'm driving 60 miles to Fullerton and just trying to be economical but still have the fun lower gears.

 

Gas mileage is directly affected by your foot mashing the gas

If you hold your speed at a steady rate you should be able to drop consumption.

I've sat and watched the MPG gauge on my GF's BMW and noticed that at 90 MPH it's getting more MPG than at 35c MPH while going in and out of traffic.

 

I don't think it would be worth the cost & time for the savings you'd get. You're looking at getting a LS 5th, tearing apart the tranny to get what ?? 32mpg instead of 30?? Just slow down to 75-80mph. You'd save a lot more gas that way. Also make sure your air filter is clean and tires properly inflated.

 

You will probably get better gas mileage at 5k rpms than 3k rpms. Any change in elevation that requires pedal movement will take less fuel to accelerate at a higher RPM's than at lower RPM's. If you keep a steady foot at 8000 rpms, you can get 30mpg, where at 2000 rpms you can get 20mpg if you constantly accelerate/deccelerate, even only at 25% throttle. FYI.