fiestaturbo.com

[rjstua]

Just wondered if any 1.6si owners with totally standard car noticed that the car sounds strained thru 4 and 5k rpm.

Would replacement airfilter (k&n or green) help it out, or would a new exhaust system be better?

[MustangSally]

have experienced the asma sound as me and my friends have called it myself - i put a K&N cone filter on my 1.6Si and it feals much better for it.
Got an exhaust system on there as well, id reckomend doing both.
Rich

[Johnny_16v]

yeah mate but get a panel filter cos induction kits are overpriced pieces of poop on the Si! probably bget same result in the end!
later
john

[a1si]

my mate had this problem with his si, took it to a garage and the garage said:
"between 4-5k the second cam kicks in so the cam may be kicking in later, therefore they need re-adjusting"

it later stopped doing it so we never actually found out what was up, hope it helps mate


easy..........

[rjstua]

just make me worry why don't ya!

[DaveZetec]

all Si,s are like this


"the second cam kicks in" sounds like rubbish to me, one cam is inlet, one is exhaust.

the cams will be generall tuned to produce peak power at a specific rpm but its not like one kicks in at a certain revs.

[a1si]

i rang the garage that gave my mate that advice, and they said with a shadow of a doubt that the second cams kicks in a specific rpms depending on which zetec lump, they all said "inlets are for gases in out of the engine" and are nothing to do with the cams, as they are contain with in a sealed unit (cam cover) which will obviously be covered in oil and therefore no gases would be ample to mix, if you look through your oil intake you will see your cams.

At the end of the day i was just trying to help the kid, i know as much about engines a small monkey in africa, hence using a mechanic



good luck mate


easy.............

[MustangSally]

Think you must have got that advice from a honda garage because there talking about v-tec not zetec mate.
V-tecs do have a different set of profiles which kick in at 5500rpm on the crx for example, but this system is not used in anyway shape or form on the 1.6Si zetec engine. If it did it would make 160bhp as on the honda crx, not the lowly 90bhp that the ford engine puts out.
As for cone filters being overpriced i totally agree, so i bought a X-tream K&N universal filter for £50 and put directly on the end of the airflow meter and then made a bracket from a bit of sheet metal to support it.
Works fine for me, in the words of Mr Alan Partridge, "back of the net".

[rjstua]

honda's are twincam jobby's ain't they

[a1si]

Zetecs are twin cam as well mate. The garage is a ford specialists so i doubt they got confused with a vtec.


Well who knows a!!!!!!!!!




easy

[Snyx]

Sounds like the garage could be in allsorts of problems

[~Tony~]

that garage does seem to be in s**t upto its neck

one set of cams are for inlet valve ans one set are for exhaust valves,

thats how ford explained it to me.

[ch1ef]

2bh how can they call them selves

ford specialists

when they have no clue on fords flagship zetec engine....?

zetecs do not have different profile cam lobes that kick in at a certain point like v-tecs do. If you still dont believe us then ask your self why when you think it happenes at 4-5000rpm there is less performance? the whole point of v-tec is the large improvement in performance after 5500rpm and fuel econamy b4.

What is the name of this garage? this place should be named and shamed. They shouldn't be touched with a barge pole.

[~Tony~]

i agree this so called specialist should be named and shamed. you cant call yourself a specialist if you doint understand the generl principles of the zetec engine.

next time your there ask them if the 8v XR2i and the turbo only run usng 4 valves until 4k

hang that sounds stupid it would mean that in effect cars like mine ran on 2 cylinders and then 4 after 4k and yours ran on 2 cylinders then 4 after 4k

Now really what would be the point of that.

Bunch of idiots

[ch1ef]

lol^^^^!

i love going into shops etc and listening to some bloke talk crap about a product for a while then tell him what it really is!

[Snyx]

doint understand the generl principles of the zetec engine.

Not only does it seem that they don't understand the Zetec engine, it seems they have failed to understand any type of engine

Perhaps you're going to something that isn't a garage as we know it?

[ch1ef]

Perhaps you're going to something that isn't a garage as we know it?

Motorworld?!

[andymac]

iirc, VTEC cams carry up to three profiles on the cam lobes. Vanos cams carry a continually varying profile across the lobe.

eeny meeny miney mo....

[andymac]

Perhaps you're going to something that isn't a garage as we know it?

Motorworld?!

I'm also also suffering a lack of power in the warp drive as I pull through warp 4 - warp 5. Might it be related ?? Do you think this garage could even up the flow on my plasma injectors and realign my deflector dish so I pick up Sky ?

[Daniel]

They will say they can but whether they actually do or not is another thing.

[PaulC]

@ This thread

The ST170 has variable timing on the exhaust to meet emmision regulations, but I'm sure thats the only standard I4 engine ford has that does?

[andymac]

They will say they can but whether they actually do or not is another thing.

Flaming typical. They wouldn't know a trilithium recrystallisation chamber if one fell on their head.

[PaulC]

Flaming typical. They wouldn't know a trilithium recrystallisation chamber if one fell on their head.

I know what a Flux Capacitor is

[andymac]

You wanna service the motor then? I'd pay you, but we don't have money in the 24th century...

[ch1ef]

you have to

[Snyx]

[rjstua]

i laugh everytime i see that pic, hasselhof is my hero

[Snyx]

Aye, Hasselhof now works in our local branch of Motorworld if i'm not mistaken

[andymac]

He's the one with the hydrogen powered motor aint he ?