What kind of MPG do you get with your R/T car?

**Blue Iroc R/T** · 03-31-2008, 07:13 AM

I get 26/27 Highway and 17/18 in town (Spirited Driving! lol)

**iTurbo** · 03-31-2008, 07:21 AM

Originally Posted by yogurt_slinger

performance re-grinds?

Yes, stg-I from LWP.

**Turbo3Iroc** · 03-31-2008, 11:34 AM

Jackson, I have noticed that some T3 cars have more low end than others. This is in pretty stock form. Originally my Daytona I would never drive in any gear below 2k rpm even after centerlining the cams. After the rebuild it seems good but it's not close to stock anymore either. The Spirit I have has very good low end though. That and you have to be driving 15 over here to keep up should keep it in the power band

**iTurbo** · 03-31-2008, 04:17 PM

Even though my R/T suffers from a lack of low-end torque, it seems fine cruising along on the interstate. I wouldn't say it's ever lugging the engine, and I rarely have to use more than 3-4 psi to maintain speed up a steep hill or to pass somebody. I like the 3.50 FD mostly because 1st gear is so much more useable and cruising RPM on the interstate is about 250-300 RPM lower than the 3.85 FD.

**Bardo** · 03-31-2008, 05:10 PM

what year did the 3.5 come in 91, 92-93?

**TurboSedan** · 03-31-2008, 05:56 PM

definately '90 and '91 in both turbo and TBI cars, not sure about other years.

-------------------------
Joshua Mitchell
'91 Dodge SPiRiT R/T
'98 Buick Regal GS

**yogurt_slinger** · 04-01-2008, 12:40 AM

Originally Posted by Lotashelbys

I had a 3.50 FD in one of my Spirits and I dontr think it actually helped the milage. At highway speeds in 5th it seemed to lug it more that the 3.85 and actually make it work harder at that speed. I would say they put 3.85s in the heavy tanks for a reason.

Sorry Jeremy

I remember you told me that Jackson but, what speed were you noticing the bogging? When I go to work, traffic is either doing 45mph or 75-80mph. I'm also prob gonna lighten the spirit up a little, I need to find some Chrysler Imperial aluminum rims..

**j4278h** · 04-01-2008, 12:45 AM

bryan, i've got a stock pile of the 14" imperial rims. Probably close to 11-12 but they won't clear your 11" brakes

**yogurt_slinger** · 04-01-2008, 01:46 AM

foiled again... maybe I can talk my dad into machining out some crabs to save a few pounds.hehe

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