get the injectors, then the brakes.

Or other way around, I don't care aslong as you skip the K+n...

 

whats wrong with the k&n?? any other alternatives you can sujest?? pointless getting a replacement pannel filter imo no matter who its made by as it still have to go through the standard airbox and pipes.
given the rubbish standard brakes im not sure i should be upping the power with injectors without haivng any more brakeing power lol. plus dont sdi injectors need a decat exhaust and better air intake to get the most out of the power increase?? otherwise ill be leaving black clouds everywhere lol

 

Just a lot of money for something that will provide almost no benefit and run a risk of doing this to your maf:

The brakes are rubbish, but they're not lethal. If you fancy doing the brakes first then go for it, but if you're impatient for some performance go for the sdi's.

Don't waste your life comparing air filters.

 

air filters give no performance gain??? but in order to get the most out of a set of sdi's you need more air to mix with the increased fuel which means more often than not an open cone filter. and how does it increase the risk of messing up the maf?? im not sure it will present any more of a risk than the standard intake

 

The extra fuelling will increase boost from the turbo anyway as it is no longer being limited... so you have that extra air anyway. Obviously by creating more boost it will also optimise that fuel better. The K&N filters have oils in them that have been known to kill MAF sensors. I have a much cheaper cone filter on my car and i have a heat shield on it too..benefits are nothing other than turbo noise..which is why i kept it on.

 

SDi's without doubt. Worry about stopping the extra power once you have it. If you don't have it then how do you know what will stop it.

Are the brakes on the 25's that bad then? I have a load of weight on mine sometimes and never have problems with brakes.

 

Like Boothy, I have a cone filter. It's a fairly cheap green cotton imitation.

With the hybrid it sounded the dogs ******** so much so I kept it. It doesn't actually sound quite so nice with the Gt2256v turbo, so i might revert back to paper filters.


As far as filtration is concerned, paper filters (regularly replaced) are the best.

And if you are looking for oxygen to burn the diesel with, then you either need to cram more air in (turbo), or remove restriction. However to do the latter you need restriction to cure.

 

Like Boothy, I have a cone filter. It's a fairly cheap green cotton imitation.

With the hybrid it sounded the dogs ******** so much so I kept it. It doesn't actually sound quite so nice with the Gt2256v turbo, so i might revert back to paper filters.


As far as filtration is concerned, paper filters (regularly replaced) are the best.

And if you are looking for oxygen to burn the diesel with, then you either need to cram more air in (turbo), or remove restriction. However to do the latter you need restriction to cure.

I actually agree with you on the filters point. I think the only decent reason for bunging a cone filter on is if you really must have the noise. I've also had both and the performance difference is too small to notice.

I think the best option is to just throw a replacement panel filter on once the paper one needs changing. At least then you will never have to buy another paper filter.

 

for the 262mm vented upgrade ill be getting calipers with all mounting hardware including sliders straight from a 25gti but will they fit under my standard 15inch steelies??

Yes they will but 282 venteds won't.

 

£75 is a bit steep for a set of SDI injectors. £50 is about the right price.

 

Agreed. I think i paid about £60ish for mine with 20k on them. In hindsight this was probably about top whack.

 

No doubt someones going to pay to do several dyno runs to prove that an air filter can net a whopping .1 pony power now I've said all that.

I've been a man of economics lately, and given a choice of upgraded injectors, or an air filter, you'd forgive me for telling you where to ram the filter...

Plus, the more and more I read into performance air filters, the less and less I think of their (already) poor image.

Have any air filter you want if you can afford it. But if you can't you might aswell stay with 'stuff that works'.

 

No doubt someones going to pay to do several dyno runs to prove that an air filter can net a whopping .1 pony power now I've said all that.

I've been a man of economics lately, and given a choice of upgraded injectors, or an air filter, you'd forgive me for telling you where to ram the filter...

Plus, the more and more I read into performance air filters, the less and less I think of their (already) poor image.

"Increased throttle response"? :stir:

 

Try saying that with a straight face...


You know, I'd LOVE to be one of these guys who can tell the difference. It'd make my garrett vnt redundant.

 

Try saying that with a straight face...

I'd be lying if i said there was not a smirk when i typed it

 

Likewise, matter of fact as far as hyped up induction kits go I had a certain red audi 1.8t driver in mind. Ring a bell?

 

I think there are certain vehicles that benefit more than others with regards to the induction system. I know the ZS180 boys swear by the inner-wing cone modification, and seem to get good results from it.

I Imagine the driver you mention was probably more interested in having a shiney K+N sticker on his airbox to show his mates than any performance benefit

 

right i need to choose from

a set of SDI injectors in good nick with 68k on them for £75

k&n 57i induction kit brand new for £78

262mm vented brake upgrade for £52

Injectors would be my vote (although they seem to be a little pricey - I just sold a set fitted for less than that).

Then brakes as you may find you need them (depending on how enthusiastically you drive)

If the smoke is too much then you may want a better air filter but most people with a standard car can put up with it.

 

Good move. You're in for a fair power hike

 

i hope so lol. i already find it hard to resist putting my foot down and feeling the torque when the turbo spools up

 

good job i keep them empty then lol. now next question...... anyone in the fareham/portsmouth/southampton area fancy giving me a hand with the injectors? ive got my trusty haynes plus the guide on here but it cant help to have someone that has done it before on hand plus its an excuse to meet some of you guys lol

 

I'd do it if you fancy a lengthy trip up lol. (4-5 hours each way LOL)

It's pretty grim up here though

 

Don't forget to buy new sealing washers before fitting them, as you don't want to have to do it again if you forget....

 

they come with new sealing washers i think 4-5 hours each way is a little to far, i would travel up to an hour though. if anyone is within an hour of fareham.

 

It is quite an unrealistic venture unfortunately, especially when you factor in my cookies!

Could always have a crack yourself, not a particularly hard job providing the injectors are willing to shift.

 

i'm about 2 hours away. Southend in Essex.. i don't mind helping if you don't mind travelling lol.
I can help you increase the boost too (if you need a hand doing that and if it is needed)

 

cookies are good. yeah ive ready through the guide and it doesnt seem to bad. once you take off the charge pipe its really straight forward.. thanks boothy90 its a possibility bit of a treck but i would love to get to meet some of you guys but the big meets are never anywhere near me , boost is at 16psi peak and the sdi's increase boost by 2-3psi so it should put me right around 18-19psi peak so fingers crossed i wont need to touch that.

 

haha well if you need a hand just PM me.
I do find it strange of boost running higher than standard..usually they reduce with age if anything. Not saying its not possible but i haven't heard of it. I'll probably get corrected by someone now
you sure its an accurate gauge?

 

i thought 16 was standard usualy reduced to 14-15 with age??? mine is teh 113bhp engine btw. hmm thats made me think now..... is there any way of verfiying the guage is accurate?? maybe ive plumbed it in wrong??? surely not?? this is my first diesel. maybe someone has adjusted the turbo before i got the car, who knows. i know there is a multi-meter method of checking the boost preasure but i dont have one so unless anyone local is willing to come and have a look as i dont want to push it past 19psi as that is largely regarded as the max safe level correct?

 

I wouldn't worry too much, boost can be anywhere between 15-17, and does normally drop a bit.

Get it to 19. Don't worry be happy.

 

Standard boost on the Di's was 15 psi
Standard boost on the 25/zr etc was 17psi

 

sdi's 1st without a dowt but i wouldnt pay that much for a set thats bonkers