BANGERNOMICS CAR OF THE WEEK/DAY

colm_mcm

Golf TDI
http://cars.donedeal.ie/cars-for-sale/x-mass-bargain-golf-tdi-nct-tax/8204575
Uk import, these can be a minefield but looks ok.

colm_mcm

Japanese oddity
http://cars.donedeal.ie/cars-for-sale/daihatsu-charade-1-0-2004-price-drop-bargain/7733369

CianRyan

JohnBoy26 wrote: »

What kind of figures are we talking?

Hard to say exactly as I've never owned one, between 10-15hp.
Mighty Car Mods recently did a comparison with their S2000 expecting little to not change and were surprised when they saw a creditable gain when dyno tested.
One phone so I'm not linking but it's something along the line of "Cold air intake might busted, naturally aspirated" in YouTube. Popular video so it should be easy to find.

You'll find most modified Civics running around 180-190hp with a Venturi air intake and an open exhaust, a B16 can crack 200hp on similar mods and a good rebuild with someone that knows the b series.

I know this as a good friend of mine had one of the best B16's in the country, the engine he build is now being used for rally.

Interslice

CianRyan wrote: »

Hard to say exactly as I've never owned one, between 1.0-1.5hp.
Mighty Car Mods recently did a comparison with their S2000 expecting little to not change and were surprised when they saw a creditable gain when dyno tested.
One phone so I'm not linking but it's something along the line of "Cold air intake might busted, naturally aspirated" in YouTube. Popular video so it should be easy to find.

You'll find most modified Civics running around 180-190hp with a Venturi air intake and an open exhaust, a B16 can crack 200hp on similar mods and a good rebuild with someone that knows the b series.

I know this as a good friend of mine had one of the best B16's in the country, the engine he build is now being used for rally.

FYP :pac:

Seweryn

rizzodun wrote: »

How realistic is his claim of 47 mpg?

Not too realistic, unless he has a solid backup for this figure.
To put things into perspective, my 1.5 VTi has been averaging 48.5 mpg over the last 55k km, but that is a larger engine and does not have the lean-burn setup as the 1.5, i.e. it basically is not overly economical even if you take it handy. I guess it should do 40 mpg on average, if driven right and not in heavy traffic.

26000 Elephants

CianRyan wrote: »

with a Venturi air intake and an open exhaust, .

A what now? A venturi is by definition a restriction,

Seweryn

JohnBoy26 wrote: »

I don't like those filters for various reasons on these, but what damage would they cause to the engine?

These filter imitations do not stop the fine particles from getting into the combustion chamber as well as a proper filter. The abrasive contaminants like fine dust cause premature wear to the engine.

CianRyan

26000 Elephants wrote: »

A what now? A venturi is by definition a restriction,

This is what I've been told anyway and I'd trust the lad that told me.
It's a type of intake that causes the air to spiral and compress as it enters the engine, hence, more power.
Very basic description, probably wrong but there you go. :pac:




And here's the S2000 video.

https://www.youtube.com/watch?v=xwNtjKT_1cA

EDIT: And as you'll see, the standard air filter for the S2000 is a cone filter so the above makes little sense.

26000 Elephants

CianRyan wrote: »

This is what I've been told anyway and I'd trust the lad that told me.

It dont work like that. Engines dont breathe continously. In a 4 pot, the intake valve of any cylinder will only be open for a max of 180 degrees for each 720 degree cycle. For those 180 degres, the air is moving quickly down the intake into that cylinder. then the valve closes. And the air hits it and stops. This causes the incoming moving air to back up, causing a back pressure ( as a wave moving away from the intake)f That would kill any attempt to get the air moving in one "spiral" mass.

CianRyan

26000 Elephants wrote: »

It dont work like that. Engines dont breathe continously. In a 4 pot, the intake valve of any cylinder will only be open for a max of 180 degrees for each 720 degree cycle. For those 180 degres, the air is moving quickly down the intake into that cylinder. then the valve closes. And the air hits it and stops. This causes the incoming moving air to back up, causing a back pressure ( as a wave moving away from the intake)f That would kill any attempt to get the air moving in one "spiral" mass.

Fair enough, I'm no engineer so I wouldn't have a clue.

They work though, I've seen the improvements between the above and a standard/regular cold air intake.
How they do it, shall for now at least, remain a mystery.

26000 Elephants

Seweryn wrote: »

These filter imitations do not stop the fine particles from getting into the combustion chamber as well as a proper filter. The abrasive contaminants like fine dust cause premature wear to the engine.

If they are proper;y oiled ( with proper filter oil) the will work very well indeed. Its the oil that traps particles, not the physical filter.
Anyway, your engine oil will deal with any very fine material that gets in. Change your oil regularly and it'll be fine.

Anyway, I think we are a bit OT now. Sorry!:D

Quazzie

26000 Elephants wrote: »

It dont work like that. Engines dont breathe continously. In a 4 pot, the intake valve of any cylinder will only be open for a max of 180 degrees for each 720 degree cycle. For those 180 degres, the air is moving quickly down the intake into that cylinder. then the valve closes. And the air hits it and stops. This causes the incoming moving air to back up, causing a back pressure ( as a wave moving away from the intake)f That would kill any attempt to get the air moving in one "spiral" mass.

IF the intake manifold branches were routed in a certain way it COULD work.

That's purely theoretical though.

CianRyan

Manifolds seem to have a huge effect on B16's too, the one I'm basing this one went through 3 till it was matched with the right one. Got a €2000 bisimoto one and took it off because it put it down on power.
He got it on sale but he was not happy about that.

Interslice

26000 Elephants wrote: »

It dont work like that. Engines dont breathe continously. In a 4 pot, the intake valve of any cylinder will only be open for a max of 180 degrees for each 720 degree cycle. For those 180 degres, the air is moving quickly down the intake into that cylinder. then the valve closes. And the air hits it and stops. This causes the incoming moving air to back up, causing a back pressure ( as a wave moving away from the intake)f That would kill any attempt to get the air moving in one "spiral" mass.

Ah yes. Air fuel BANG fart

...

http://cars.donedeal.ie/cars-for-sale/opel-astra-1-7td-98/7823628
It's got bonnet surfing handles!!

Seweryn

26000 Elephants wrote: »

If they are proper;y oiled ( with proper filter oil) the will work very well indeed. Its the oil that traps particles, not the physical filter.

Sure... The thing I don't understand however is why these, obviously cheaper, small filters are not factory fitted. Why do they fit a large, black plastic box with a large filter insert? The whole setup costs a lot more to manufacture.
Honda engineers, if you are reading this thread you can learn a lot and save some money at the same time, plus all that extra horsepower! It is a no-brainer surely, is it?

26000 Elephants wrote: »

Anyway, your engine oil will deal with any very fine material that gets in.

Before it settles in the oil filter, it will have to pass the cylinder-piston surface and do some damage.

26000 Elephants wrote: »

Anyway, I think we are a bit OT now. Sorry!:D

Yeah, a bit .

26000 Elephants

Seweryn wrote: »

Sure... The thing I don't understand however is why these, obviously cheaper, small filters are not factory fitted. Why do they fit a large, black plastic box with a large filter insert? The whole setup costs a lot more to manufacture.

It reduces induction noise. The back pressure wave I spoke about above causes the induction roar you notice when you remove the oem kit. Also, paper filters require less care and feeding than oil/cotton filters

Seweryn wrote: »

Before it settles in the oil filter, it will have to pass the cylinder-piston surface and do some damage.

It doesnt settle in the filter, it remains in suspension.

CianRyan

Seweryn wrote: »

Sure... The thing I don't understand however is why these, obviously cheaper, small filters are not factory fitted. Why do they fit a large, black plastic box with a large filter insert? The whole setup costs a lot more to manufacture.
Honda engineers, if you are reading this thread you can learn a lot and save some money at the same time, plus all that extra horsepower! It is a no-brainer surely, is it?

Watch the video I posted.

CharlieCroker

Anyone see any bangers today?

26000 Elephants

CharlieCroker wrote: »

Anyone see any bangers today?

We're off tonight Charlie. Its your turn.

Toyotafanboi

Toyotafanboi wrote: »

this could be a repost. fairly extensive spec list including memory seating. the poor mans lexus gs maybe?

http://cars.donedeal.ie/cars-for-sale/00-hyundai-xg-n-c-t/8011783

http://cars.donedeal.ie/cars-for-sale/hyundai-xg-2-5-n-c-t/8204593

still fancy it for what could well be **** all moneys!

this has to be one of a rare breed of car, where you can turn up as a prospective buyer and offer any sum of money at all and be almost guaranteed acceptance.

Toyotafanboi

http://cars.donedeal.ie/cars-for-sale/2003-mg-zr-nctd/8204272

these are such a looker and despite the naysayers, they are pretty ok.

unkel

Toyotafanboi wrote: »

http://cars.donedeal.ie/cars-for-sale/hyundai-xg-2-5-n-c-t/8204593

still fancy it

Still fecking overpriced

Ded_Zebra

Toyotafanboi wrote: »

http://cars.donedeal.ie/cars-for-sale/hyundai-xg-2-5-n-c-t/8204593

still fancy it for what could well be **** all moneys!

this has to be one of a rare breed of car, where you can turn up as a prospective buyer and offer any sum of money at all and be almost guaranteed acceptance.

Could be made interesting...

Toyotafanboi

unkel wrote: »

Still fecking overpriced

it's only going one way :pac:

Simonigs1.0

Why do I think that thing is cool?

toyotaavensis

I like some of these estates estate
Estatenomics test only til march though
http://cars.donedeal.ie/cars-for-sale/ford-mondo-estate-only-80-000-km/8199648
volvonomics - like the look of this
http://cars.donedeal.ie/cars-for-sale/03-volvo-v40-1-8-petrol-1050-euros-price-to-sell/8189772
cheap - this could be had for 6 or 650 methinks
http://cars.donedeal.ie/cars-for-sale/volvo-v40/8149560
i like this one
http://cars.donedeal.ie/cars-for-sale/v70/7943560
almost for nothing car. I learned to drive in one of these
http://cars.donedeal.ie/cars-for-sale/ford-mondeo-estate/8126714

Toyotafanboi

clearly the chrome hub caps... or is it the 2.5 v6 fwd setup that draws you in :P?

i just think it's so endearing, it was hyundai trying so so hard. it's one of their last **** cars, like they gave it a reasonable engine, loaded it with extras, they just forgot to make it pretty.

Toyotafanboi

crazy hilarious how mk1 mondeos are holding better value than mk2s.

toyotaavensis

I have a real softspot for them and a car with a decent amount of test like that red one is going to be worth at least 600 of anyones money.

RayCon

Toyotafanboi wrote: »

http://cars.donedeal.ie/cars-for-sale/hyundai-xg-2-5-n-c-t/8204593

still fancy it for what could well be **** all moneys!

I was trying to think of what it reminded me of ..... then ... boom ...

My old Kojak toy car >