Just wondering.

[lcdownes]

Is the only difference in the ea motor and the eb2 ed the injection system? why is one called a 4.0 and one a 3.9 when they are the same size

[Sweet_EL_]

the 4.0 and 3.9 dosen't ref to the injectors, it mean when size motor... the ea is a 3.9 liter and the eb2 is a 4.0 liter... and yes the injectors are the same size...
is that what what you mean??

[EFFalcon]

EA was available with multipoint fuel injection.
the engine internals actually changed between the 3.9 and 4.0.

[lcdownes]

I was wanting to know why the first one is called 3.9 litre and the second a 4.0 litre when they are both 3949 cubis inches? Or have I got the wrong information. Secondly, does the cpi only have two injectors?(is that what i see when itake the are filter cover off) or does it have one for each cylinder.

Thats what I should have asked. Sorry for being so lazy.

[EFFalcon]

CPI (or CFI) has 2 injectors as you said.
MPFI has 6 injectors.

[eb91xr6]

i think he needs to get a gregorys manual

[lcdownes]

I am trying to find a second hand one Pm me if you have one for sale.

[snypereb]

Are you running cfi or multipoint

[XR Martin]

Originally Posted by lcdownes

I was wanting to know why the first one is called 3.9 litre and the second a 4.0 litre when they are both 3949 cubis inches? Or have I got the wrong information. Secondly, does the cpi only have two injectors?(is that what i see when itake the are filter cover off) or does it have one for each cylinder.

Thats what I should have asked. Sorry for being so lazy.

The 3.9 and 4.0 are not the same capacity, the 4.0 gained a slightly larger bore.

[CaRtZ]

Originally Posted by eb91xr6

i think he needs to get a gregorys manual

gregory's manuals have a reputation for being useless. haynes aren't so bad but nothing matches upto one from the manufacturer

[Plunkett]

Originally Posted by lcdownes

I was wanting to know why the first one is called 3.9 litre and the second a 4.0 litre when they are both 3949 cubis inches? Or have I got the wrong information.

The "3.9 lt" engines that came out in the ea models came out as both CFI and MPFI where 3949cc where the "4.0 lt" has a 3984cc displacement.

[EF302]

the 4.0l has lighter internals aswell, such as pistons ect

[Kaddis]

what was the difference between the EA 3.9 head and the EB 4.0 head?

[efgiar]

Originally Posted by Kaddis

what was the difference between the EA 3.9 head and the EB 4.0 head?

they fixed the 3.9 heads and made them not blow head gaskets 24/7 ;)

[EFFalcon]

there was chamber differences between the heads.
i'm sure there was more, but i'm not sure on the specifics.

[lcdownes]

Just a question about chucking subs in the boot. I wouldnt ever do it because I don't listen to doof doof(and the **** factor), but where do you guys stick the spare tyre? I Have noticed a few very neat setups in the boot, and the sub seems to hang down where the spare wheel would normally sit. Soyou guys stick it in the boot loose or link it up with a small harness or drive without a spare ?

[Christiaan]

Originally Posted by lcdownes

Just a question about chucking subs in the boot. I wouldnt ever do it because I don't listen to doof doof(and the **** factor), but where do you guys stick the spare tyre? I Have noticed a few very neat setups in the boot, and the sub seems to hang down where the spare wheel would normally sit. Soyou guys stick it in the boot loose or link it up with a small harness or drive without a spare ?

Most drive without a spare. It's not uncommon.

Subs aren't just for doof doof. They add a dimension to the sound, that is there in every song you listen to. Whether or not you have a sub to hear that low frequency dimension, is another story.

[lcdownes]

Bugger! So if you suffer a flat your screwed and become an instant celebrity if you do it in peak hour. :/

Yeah I know nothing about subs except that its insanely funny when peoples spoiler and boot rattle makes more noise than the sub. I mainly listen to rock and metal, was wondering if anyone else has a sub for that purpose/.