Dumb Question Thread!

[QRAF]

should really ask in the dumb question thread but what the benefits of adjusting your cams i've been told it makes the car sound better more lumpy and it will give you a better rev range is this correct or can someone explain it better?

[funkytown]

:o magics!

anyway.. goes something like this.

The actual cam shafts inside your rocker covers (the cams) when you change those to radically different measurements - ie 272's / 264's this causes lumpy idle and gives you more repsonse up top - generally at the expense of down low power. (he bigger you go)... i think factory spec is something like 245 for reference?

You can also put on adjustable cam wheels (these are on the outside but under the black covers on the front) and what your cam belt runs on, in factory spec on subarus you find that the timing of 2( i think its two, not 1) of the wheels is 1/2 tooth out on the cambelt markings. This causes the cam shafts to be at slightly different timing across the four heads cams (eheheh edit: i mean the four cams, not 4 heads ) on either the intake or exhaust cam shafts. You can still make great power on factory set up, but by having adjustable cam wheels you can get the timing identical on each cam shaft making your motor slightly more 'harmonious' and will net small gains if you tune via ecu.

you can also set the wheels to slight advance or retard if you wanted - but i dont know enough about the ins and outs of what that achieves to comment

[QRAF]

awesome response

[funkytown]

Do some reading on cams - there is plenty about it already on the net and that will help you understand what the 264/272 and other measurements mean with respect to lift and duration.

[QRAF]

can't see me doing it myself as its not something i'd like to get wrong.

I'd only do it so my car would sound more lumpy and that just isn't enough justification.

[funkytown]

 QRAF said:

can't see me doing it myself as its not something i'd like to get wrong.

I'd only do it so my car would sound more lumpy and that just isn't enough justification.

hahahah swap the leads over into the coil on one side/ bank some time... you get v8 lumpy

*i wouldnt drive it like that.. sounds funny though!

[94 Leone]

How many other people have had trouble with turbo water lines interfering with the ej208 block, during an ST conversion? It's sorted now through 'custom fabrication' but just curious if any others have been royally pissed off?

[eKulz]

I have this terrible whine coming from the legacy! It started yesterday and still happening today.. its either from the exhaust or the rear left wheel i have no idea. Pretty much when I speed up it gets higher pitched up until about 40kph, then the road noise overpowers it/it goes away not sure. Then when i slow down to a stop it's terrible it gets lower pitched and stops when i stop.

not really sure how else to explain it.. no ones poked anything inside my exhaust and theres nothing on the wheel or tyre that i can see. ITS DRIVING ME CRAZY

[Johnnynz]

Checked how much meat is on your rear brake pads?

[subi4snow]

 Johnnynz said:

Checked how much meat is on your rear brake pads?

+1 that was my first thought, or a stone chip jammed in there also

[Johnnynz]

Yep they make a lovely noise to.

[eKulz]

ah okay that makes me feel better. don't have a jack to lift the car up car didn't come with one, i'll go buy one sometime. cheers

[Johnnynz]

No Gaurantees mate but there the first two things I would check personally.

Both possible to probable causes and very simple fixes.

[eKulz]

im thinking its probably the stone problem.. a WHOLE lotta stones have been dumped all over the street where the car has been parked, theyre everywhere...

think its to melt ice/snow lol

[subi4snow]

yeah the grit is a huge issue haha. if it's around dunedin hills thats probably what it will be. I get it once or twice each time i go over to qtown.

I usually try driving and pumping the brakes, or reversing then braking kinda hard. That usually pops it out if there is a bit of grit in there. dont know if thats a good way of doing it or not but works for me haha

[eKulz]

just went up cargill again, it seems to have fixed itself braking around the corners and stuff haha.

[wrx_lou]

Does paint stripper work on powder coating?

[reaperblitz]

Iv got an sti intercooler on the car and it's got a weird probe sensor drilled and sealed to the bottom towards the manifold. I'm assuming this is an air temp sensor? Looks to be a 'tamiya' posi/negative connector at the end of the wires.

My question is 1) is there a way I can make use of this 2) why would it have been installed on it

[ADIKT]

Probably an air temp sensor for standalone ecu.

[reaperblitz]

That's what I thought. I will just leave it in and sitting unplugged till it has a purpose

[reaperblitz]

Then il have to seal it again. Iv stuck my phone and taken a photo of it. It's an air temp sensor

[eKulz]

anyone have these philips crystal vision halogen lights in their cars?

http://www.lighting.philips.co.nz/v2/automotive/productrange.jsp?id=1012959&app=car_&vp=white%20light_car&va=white%20light_car

they work ok?

[newsuba]

 

Descrption

Philips CrystalVision produces 4,300K of bold white light that shows the world you’ve arrived.

LMAO

[94 Leone]

Whoever works in their description department is a legend.

[DRFVDR]

depends on what you are trying to accomplish, if a whiter light then yes they will work, if more light then nah.