golgothan
5000+ HP Club
- Joined
- Oct 28, 2008
- Location
- Cleveland Heights, OH
I just want to note that I've managed 35+ on trips to Wisconsin in the s60, does that count?
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I just want to note that I've managed 35+ on trips to Wisconsin in the s60, does that count?
I would be interested to know the mileage...
T cam will produce more dynamic compression because of the lower duration/lift and will increase your low end torque and gas mileage some.In my Volvo 360, i have a b230fb which averages 30mpg. This engine has the vx3 cam. Should I switch to a Y, M or even T cam or should I keep the vx3 which has the newest design?
Ofcourse the 9.3:1 compression isn't helping but I will change that.
Driving economically on the freeway
You?ll use less fuel and save money if you:
drive more slowly ? travelling at 90 km/h rather than 110 km/h will reduce fuel use by up to 25%
3000 RPM...best consumption
6th gear nowadays?
"what is the absolute best RPM to maximise MPG for town-ish driving (say 35 mph)
T cam will produce more dynamic compression because of the lower duration/lift and will increase your low end torque and gas mileage some.
I would be interested to know the mileage of a B230KH (631 Heron head with T-cam and high CR) , it came in the euro-market 740's and was specially designed for good mileage.
Anybody ever ran a B230KH using EFi? +T-ed?
Other threads on here claim that the T cam does even better in the low end....
No need to advance it. I don't think anyone has ever said to advance the T cam. I ran it retarded 4 degrees and it was a good mix for me.Other threads on here claim that the T cam does even better in the low end if you advance it by a few degrees. Naturally you're cruising in the low end of your RPM range, even if you're on the highway, so better low-end torque = engine works less hard at cruise = higher MPG.
No need to advance it. I don't think anyone has ever said to advance the T cam. I ran it retarded 4 degrees and it was a good mix for me.
this is all true stuff
i know cruising at 60mph @ under 2000 rpms (1500-1700 ideally) is how cars have historically gotten really good mpg/fe.
if this isn't possible with the stock rear-end / trans couldn't the rear end be swapped to be able to achieve this?i remember someone on ecomodder/fuelly achieved 40+mpg hwy out of a volvo 240..ill see if i can't located the thread,getting 40mpg out of a 240 would be the best of both worlds in my opinion.
use a 331 rear end on a locker auto I think gets you around 2k rpm at 70...but youd have to live on flat terrain for that....run the stock L or M cam.....2.0 or 2.2lh tend to run lean....also kjet can be tweeked to run super lean.. then theres aftermarket stuff
I think a high comp ohc redblock with no ps pulley and only an alternator on the pulley on a switch to turn it off wwhen it isn't used can get into 35mpg consistently being lowered and at that gear setting above....some guys take out the alternator altoghether and just charge the car at home to gain like 2-5% mpg