RPM isn't the sole factor when searching for better mileage. You really should be looking @ load vs RPM to get the best mileage. The lower the load, the less fuel you will use. IMHO, the BP engine seems to run nicely between 3600 and 3900 RPM's. If you can keep the engine below 10 inches vac @ 3600 RPM, you'll likely see your best mileage. FWIW, @ 80 mph, I'm running around 3800 RPM and on flat road around 10 inches of vac. This is w/ the Quaife gear set and a 4.1 final drive.
Like Mike H. noted, I can reach 47 mph @ 7000 rpm in 1st and I don't have to worry about 5000 RPM clutch drop launches either. ----- Original Message ----- From: Eric McCord To: [EMAIL PROTECTED] Cc: [email protected] Sent: Saturday, August 30, 2008 11:06 PM Subject: Re: Best of both worlds??? I agree with your position on the Quaife gears.......I would LOVE to have them. What is not coming through is that there are alot of people looking to increase the MPG and I am thinking along the lines of simplifying the swap so as to get max MPG day to day and being able to swap back to POWER off the line easily. Hense the title of this message......Best of both worlds...... Eric On Sun, Aug 31, 2008 at 1:58 AM, <[EMAIL PROTECTED]> wrote: While not cheap, the Quaife gears will give you a lot more room before you have to shift. I can hit over 40mph in first gear. Aside from being virtually bulletproof and really tightening up the entire drivetrain I can cruise around in 25mph zones in first gear all day long and the gear whine turns a lot of heads too, hehe. -------------- Original message ---------------------- From: "Eric McCord" <[EMAIL PROTECTED]> > not concerned with stoplight perfomance........but it certainly would help > out with the fact that I EAT UP 1st gear now. > > On Sun, Aug 31, 2008 at 1:21 AM, Ray Ayala <[EMAIL PROTECTED]> wrote: > > > The 1.6 would get seriously lethargic at stoplights with the CTS diff. > > > > ----- Original Message ----- > > *From:* Eric McCord <[EMAIL PROTECTED]> > > *To:* [email protected] > > *Sent:* Saturday, August 30, 2008 9:33 PM > > *Subject:* Best of both worlds??? > > > > I have been debating with a coworker about how Elvis gets better gas > > mileage now as a LS1 vs running a 4 cyl. I know it is due to the CTS diff > > and taller gearing. It started me thinking.......always has the potential to > > get dangerous with me. > > > > What would a 1.6 FMII get with the CTS diff vs the Torsen I am running now. > > Also, as I recall from my Torsen swap there was not alot involved in > > changing it over. > > > > What I thought would be cool is to simplify the swap by making the 1/2 > > shafts two piece and be able to change over the Torsen CV side over to the > > CTS CV side. Run the CTS diff for gas mileage and swap in the Torsen for > > having serious fun. And if I ever have my dream come true be able to swap in > > the Torsen for SERIOUS FUN with the LS1 engine....... > > > > > > ------------------------------ > > > > _______________________________________________ > > Miatapower mailing list > > [email protected] > > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower > > > > ---------- Forwarded message ---------- From: "Eric McCord" <[EMAIL PROTECTED]> To: "Ray Ayala" <[EMAIL PROTECTED]> Date: Sun, 31 Aug 2008 05:28:58 +0000 Subject: Re: Best of both worlds??? not concerned with stoplight perfomance........but it certainly would help out with the fact that I EAT UP 1st gear now. On Sun, Aug 31, 2008 at 1:21 AM, Ray Ayala <[EMAIL PROTECTED]> wrote: The 1.6 would get seriously lethargic at stoplights with the CTS diff. ----- Original Message ----- From: Eric McCord To: [email protected] Sent: Saturday, August 30, 2008 9:33 PM Subject: Best of both worlds??? I have been debating with a coworker about how Elvis gets better gas mileage now as a LS1 vs running a 4 cyl. I know it is due to the CTS diff and taller gearing. It started me thinking.......always has the potential to get dangerous with me. What would a 1.6 FMII get with the CTS diff vs the Torsen I am running now. Also, as I recall from my Torsen swap there was not alot involved in changing it over. What I thought would be cool is to simplify the swap by making the 1/2 shafts two piece and be able to change over the Torsen CV side over to the CTS CV side. Run the CTS diff for gas mileage and swap in the Torsen for having serious fun. And if I ever have my dream come true be able to swap in the Torsen for SERIOUS FUN with the LS1 engine....... ------------------------------------------------------------------------ _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower ------------------------------------------------------------------------------ _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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