Polo Intake Thread

[ryan_GTI]

great arguments!

However for $160+ for a cupra intake, it's a good investment considering how restrictive the stock intake is... whether it gains any power or not... surely there is *some* sort of benefit from more free flowing air.

the TIP mod however, is a different story~ for $300 odd.

[Spec83]

I can only say (as much as this will be rejected by the anti-intake mod collective) that the intake mods I've done have produced amasing results. My engine has been totally tranformed from its awkward to use narrow power band (3000-5000rpm) to a now linear and free-reving power band that's an absolute delight to use.

I am not discounting the effects of marginally freeing up the intake - I have mentioned that adding a pod style filter will allow the turbo to spool a bit earlier and free up the lower ranges... but once you get PAST the turbo's peak efficency (~5000rpm) the turbo is dropping sharply off the back of the curve and the only thing to solve this is to move to a turbo with bigger wheels - The response curve of the turbo does not lie....

I also agreed with you with regards to the intercooler for different reasons. It allows the ecu to run more timing or lean out the mixtures. With regards to the turbo the intercooler allows you to run a little more boost as it is removing the increased heat levels in the air due to a reduction in turbo efficency. the turbo has its limits though. You have to remember that the turbo cooling system is designed to work at ~60% turbo efficency. If you run it at 55% efficency the turbo will not get cooled properly and it will fail. I don't know why you would run past 1 bar boost anyway cause you are then missing out on the peak midrang power for a theoretical 5hp gain at the top... stupid idea!!!

I re-interate that this is why APR and other such chips run at the same efficency as stock - none of the system should be effected by running the increased boost levels - but any further increse on an otherwise stock car will reduce mechanical longevity. This is why any tuining $$$$ should be put towards a chip first before any other modifications... $200 on an intake and $400 for a dump pipe = $600 towards an ECU tune that WILL give you the biggest gains.

I suggest that you read peoples responses in the future

[Timbo]

I can only say (as much as this will be rejected by the anti-intake mod collective) that the intake mods I've done have produced amasing results. My engine has been totally tranformed from its awkward to use narrow power band (3000-5000rpm) to a now linear and free-reving power band that's an absolute delight to use. It has effectively transformed the car to the next level, ..and some of us 'can' ascertain whether the benefits are real and not just 'noise' and 'whistle'.

Let's just drop the 'them and us' thing -- certainly not my intention
I certainly commented favourably on the dyno results you produced. And I absolutely acknowledge the benefits of more linear power delivery; IMHO, the least useful part of a dyno chart is the peak power/torque figures; much more information is contained in observing changes in the curve shape.

However, in the case of the dyno results you showed us, the issue is (and please, this is no personal criticism, just an observation) to what do you attribute the results? The FMIC, the BMC CDA, the Forge TIP or

In an ideal world, we would have a series of tests which reflect the effects of incremental changes; we don't have these but we do have a good explanation of the likely scenario, as set out by Spec83 above.

Time for a beer

[mitch_gti]

Speaking of constructive charts how bout someone formulates a pie chart showing the states with the highest concentration of single fit birds. So that i can best know where to move

[Wand Weaver]

Let's just drop the 'them and us' thing -- certainly not my intention

Now that this seems to have calmed down a little, I'd like to add that it wasn't my intention either - in fact, the last sentence in the very first post I posted up in this thread was that I was willing to be proved wrong by data to the contrary, something I again implied in my second post.

I guess I then reacted to some hostility from the pro-intake mod crowd when it was suggested I was just pulling assertions out of the proverbial. While it wasn't particularly pretty, the result was some pretty valuable information being thrown around on both sides, and everyone can benefit from that.

Now, we've just got to get that info out there without the hostility

But - in summary, great work on both sides, and certainly no hard feelings.

[Spec83]

Hey Guys,

Was doing a bit of a look around at 'work' today and came across this intake kit that includes heat shields, filters etc... It is for a MkIV Golf GTI but I reckon it would fit our Polo's...

http://www.afefilters.com/IntakeSytemstest.php

And select Gas > Volkswagen > Golf > 2003