The ealy DOHC engines with the B-heads and IMRC throttle plates are very efficient under normal cruise conditions. Most Lincoln guys I know are knocking down 28-32mpg with conservative driving. My dad brought his Mark VIII back from Waterloo last summer and averaged 30mpg rigth on the nose.
Even I with my heavy, blown 2V Cougar with 3.73's am still able to knock down 25-26mpg on the highway if I'm careful.
Not to imply I have anywhere near your apparent knowledge, I have to ask, Why was I previously only about to launch at 1500 rpm and now launch at 2400 rpm? Are you saying that has nothing to do with the 2500tq?
Thanks.
4.10's on an automatc? Not for a daily driver. I have 3.73's and if I'm at 80mph im running into the 3000RPM range - which I don't like to be in. 70mph is still about 2250rpm. 3000 for prolonged highway miles probably isn't too good for an engine. I would think it would burn a bit of oil.
Jmod'd valve body. I'm suprised TGJ didn't mention that
The stock stalls flash speed is 2300-2700 but you cant launch at the stall speed which is why you launch at 1500.
If your launching at 2400 your stall speed is probably over 3k...I would think?
Put your car in second gear from a dead stop and stomp on it, see where the rpms shoot to...come back and post
That should be your stall speed
The ealy DOHC engines with the B-heads and IMRC throttle plates are very efficient under normal cruise conditions. Most Lincoln guys I know are knocking down 28-32mpg with conservative driving. My dad brought his Mark VIII back from Waterloo last summer and averaged 30mpg rigth on the nose.
Even I with my heavy, blown 2V Cougar with 3.73's am still able to knock down 25-26mpg on the highway if I'm careful.
22.5mpg is horrible mileage for a stock Mark.....I would certainly check into it.Its a LSC so I have the trac loc already. If I do gears it will be 3.73s. I drive the speed limit and dont punch it at all going to and from work and can only get 22.5 mpg average
Whats the J mod?
And Brian I thought the Marks didnt have the IMRC
The fuel pump/injectors/lines/filter are all new. The car was running lean and gave the same mileage. I did 450 miles with the cruise set at 75 mph and thats the best I could do at 22.522.5mpg is horrible mileage for a stock Mark.....I would certainly check into it.
And yes, the Mark VIII engines had the IMRC plates...just like all early 4V's. They didn't remove them until the '99 model year in the Cobra's. Pic below....
As for the J-Mod....VALVE BODY MODIFICATION INSTRUCTIONS
Ok Brian, after testing out the mileage thing it seems the car will see 26.2 average doing 70 mph on my drive to work. It drops to 25.1 when on the back roads doing 60 but alot of sweeping turns.
Sound normal?
Im sure there have been threads about this but I never read them as I didnt think id get an auto
Now my Lincoln has the same auto (i think) as the modular SN95s and want to see what it takes to be a killer transmition. I would like quicker more solid shifts under WOT but still be smooth under normal conditions. It will eventually need to handle a super charger but i want to keep the 3.27 gears as I wana keep the great highway manners and low noise level. What kinda torque converter should be used? Not for drag racing and still DD duty, is the stock one fine then?
Also the transmition has had the 1-2 shift solinoid upgrade done.
Thanks all! :SNSign:
Thanks, but I like RWDget this it will convert your car into awd
AWD Kit [AWD45] - $450.99 : KaleCoAuto, Hard to find automotive items!
I've had 4.10s for 6 years. I get great mpg, I run 3000rpm at 80mph. I would never dream of having less gear. That would be a mistake with a 4R70W.
3.73s can suck my balls.
Thanks, but I like RWD
Besides I spent all my money on the O-pipe and two bars of boost
I was thinking about the oil bypass kit but will wait till I get my third boost bar.
And yeah Brian, I can hit 60 on the highway and knock down 28.7 mpg but I am in danger of getting run over
The plugs/coils and whole fuel system are new.
Im fat and prolly start a little faster than I should which both will contribute to lesser mileage
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