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View Full Version : 426 BB Hemi to make a come back?


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Outlaw1
01-12-2006, 11:51 AM
They did it on the ZR1's starting in 1990. It wasn't for mileage though, it was the valet mode that cut power almost in half.
The ZR-1's had 16 injectors. The valet mode killed half of them.

Shotgun!
01-12-2006, 12:07 PM
The ZR-1's had 16 injectors. The valet mode killed half of them.
I learned something today!

FattyBoomBatty
01-12-2006, 06:05 PM
you guys are missing the point by talking about gas milage. that is not a car you buy when considering gas milage, and vice versa.

if you are nit picking on milage on ANY car with a v8, you are out of your gourd. get a crx hf with headers and an after market exhaust. 50 mpg.

Steeltwo
01-13-2006, 09:02 AM
Thats what it was, Cadillac did it for mileage didn't they, but failed?
caddy did the displacement on demand thing in the mid 80's with the 4.1L engine, but they couldn't get the injectors completely shutoff for some reason and it would spray some gas on the cylinder walls while the piston was disabled, thus washing the cylinder wall of oil and causing premature failure.

i'm guessing the current displacement on demand engines had fixed that problem. it is quite a good idea, but is only useful to the people who drive on the highway. in town the engine is running on all cylinders all the time.

if you look at the hemi ram with the dispacement item, it gets something like 12 in town, but I think it's 29 on the highway. Might be 24 though.

Shotgun!
01-13-2006, 12:31 PM
I know hemi rams without get about 10 highway.

Steeltwo
01-13-2006, 05:07 PM
I know hemi rams without get about 10 highway.
those engines sure to love gas.
I think dodge and gm are having a competition with the 6.0L vortec vs 5.7L hemi on who can chug the fastest.

FattyBoomBatty
01-13-2006, 05:49 PM
ooh, also, i dunno if anyone said this, but 6.1 liters is not 426 CI