Motors my new car but its old, Yaris GS 1.0l Vtt-i

Try getting the gearbox oil changed, it sorted the notchiness of the 'box on my (admittedly much older) car no problem. If the car's been serviced as it should though, then I wouldn't expect this to be of too much help as it should already have been changed if needed.

Maybe it's just the learner-driver abuse it's suffered taking its toll?

 

probs lol. some people still need to learn what a clutch is lol. yeah i will look at the service book seen when it was last checked if not gearbox oil it is. it seems most clunky between 2nd going to 3rd.

 

I'm pretty sure he was referring to the increase in insurance from company's due to their stereotypical views, backed up by some adequate data.

 

cold air intakes or filters that modify the airbox actually increase the likelyhood of hydrolock on yaris platforms. not a good idea

 

tbh to hydrolock most cars with a cold air intake, you'd have to fully submerge the filter...

I've never had problems with hydrolocking, and every single one of my cars has some sort of CAI...

as for the K&N, they do add slightly to throttle response, not so much to power

kind of stupid that insurance in england goes up when you add an intake...


hell, my insurance didn't even budge when I turbo'd a car (my 98 civic went from it's stock 106hp to over 400, yay for engine swaps & buildups)

 

But if you install a CAI i would have thought you'd need to tweek the mapping to inject more fuel, otherwise the extra air is useless?

By the way, do you lot actually have Yariseses (Yarii??) in America? I thought it would be too small for you guys

On the subject of dumb placement of CAI's, I saw an Escort the other day with the intake right in the front splitter, about three inches off the ground. I can't wait to see what happens when he hits a puddle...

 

The ECU is able to adjust the amount of fuel needed dependant on the volume and temperature of the intake air.
It'll likely be able to cope with a CAI no problem.
Its only when you start using forced induction that you'll need to start thinking about remapping...

 

correct...

OBDII car will have no issues with a CAI, as it doesn't massively increase the amount of air, or change the pressure behind it

forced induction does require total remap of A/F ratios and ECU, in addition to quite a few other things

 

Some beemer engines will supposedly run 10psi on standard ecu, afm and internals...

 

It depends on the car, the standard intake sensors and mapping are designed to run within certain limits set a little outside the expected conditions, but some will take it further than others.

 

O...K..let me get this straight, you've got a 1 litre engine and want to get to install airfilters and whatnot to get an extra 1 or 2 horsepower(if even that)??

I know about the crazy UK prices on insurance, but face it, all you're going to have is a 1 litre yaris, hardly worth the trouble

 

Don't bother with K&Ns, or any performance parts! It's a 1.0 Yaris... why bother? Don't chav it up.. dont modify it... you'll just get laughed at.

Keep it nice, keep it standard, and spedn the money you'd have otherwise spent on some decent ICE instead.

 

The only reason i got a K&N filter for my little 1L mini is solely for the looks of it!
Tidys up the bay a hell of a lot and a lot nicer than the nasty filters they have on them!

The noise that comes out of it is all from the exhaust, and tbh i like it. People notice me, then they laugh becuase i look rediculous in a mini. xD

 

quite a few engines can run low boost on the standard ecu & internals
the honda D series is a prime example...
it can run <7psi up to 200hp on stock internals
beyond that, there have been 400 & 500hp street legal heavily modified D16's

in terms of forced induction though, even with that application, you're better off having the ecu remapped properly, as even with the best off the shelf turbo kits, your engine will eventually succumb to horrible death.

best way to do forced induction is with a ecu chip, remap & a good tuning (meaning dyno & street tune the A/F ratios)

forced induction is fun, be it superchargers or turbos, but it takes a lot of work, know how & time to get it to work well and not kill an engine

if I hear of someone wanting to run a turbo or something, i tell them to at least beef up the bottom end of their engine, as I can't even count the number of stories I've heard of spinning a bearing and throwing a rod through the block or out the bottom of the pan

 

cderalow, is it true that most heavily turbo'd engines, even if set up properly, will eventually succumb to a horrible death no matter what? Or at least the head gasket will go 'pop'...

 

nope.

 

Thanks freedom. Way to stereotype!

I've just ordered a K&N system for my new car. I'm 39, no points, never had an accident, and have full no claims bonus. I'm not a chav - the car is worth £28k and I've also just ordered a full set of Good Year GS-D3 F1 tyres INCLUDING THE SPARE!

Now stop stereotyping people!

I fail to see the point of an induction kit on a 1.0L car to be honest, but if you're gona say anything negative do what I'm about to do:

"Stop it, you'll gain no more power, and sound like a chav mobile... it's a 4cyl... acrually, I think it's a THREE cylinder 1 litre... it will just sound loud and farty... and not good at all"

..and not accuse him of being reckless and/or dangerous.

 

You may see it as stereotyping, but the insurance companies just work the numbers I'm afraid.

Good choice of tyres, they're fantastic, but if you have time to change your order still then do, it's a bad idea getting one put on the spare wheel. They're directional tyres, so if you get a puncture on (for instance) the left of the car, but the spare is put on in the direction for the right side of the car, you'll be a bit screwed. It would be ok in the dry to limp home, but in the wet you would be pumping water into the centre of the tyre and it would be rather dangerous.

An induction kit on a car such as a 1-litre Yaris won't affect performance enough for anyone to notice, but the sound the kit makes is cost effective ICE if you ask me

 

I know... but it looks cool! It's only a spare, and to be honest, no more dangerous that those stupid space saver things. It's purely a means of limping home anyway - plus, if one of the other 4 gets damaged beyond repair, I have already have a new tyre I can put on. Sooner or later I'll be glad I did.

As for the sound, I cant imagine a 1.0 engine sounding good with a K&N... just louder. But unless it sounds nice anyway, why make it louder? Same as small 4 cyl engines with loud exhausts... it just sounds awful: a sort of monotone farting sound. Loud doesn't mean good.

 

Personally I'd rather go for a half-decent non-directional tyre for the spare and not die if it rains when I need to use it Your decision though obviously.

A 1-litre 4-pot production engine is never going to sound like a TVR straight six, that's for sure, but after hearing my mate's 1-litre Polo with a K&N I'd definitely say they sound much better for it.