Intercoolers and for Polo GTI and TDI...and other products!

[pologti18t]

I thought the best intercooler (for a petrol engine) was the one with the most mass. The intercooler acts initially as a heat sink, then radiates the heat via air flowing through the fins.

The volume of the heat exchange core (the section comprising the cooling fins only) is a guide to the amount of contact the heated charge-air has with cooling air. The larger the core volume, the better the charge-air can be thoroughly cooled.
The mass of an intercooler is important because it represents the thermal mass of material that charge-air heat can be transferred to. A greater mass generally means greater heat-sink ability - and that's important for a typical road car that cops the occasional short squirt. On the other hand, note that it is possible for a high thermal mass to work against you in some installations. For example, if an air-to-air intercooler is mounted in the engine bay, it will become heat-soaked in stop-go traffic conditions. The core must then be cooled before it can effectively transfer charger-air heat.

[dammfool]

ID love to get one of those intercooler kits for my tdi. count me in

[VW GTI]

I thought the best intercooler (for a petrol engine) was the one with the most mass. The intercooler acts initially as a heat sink, then radiates the heat via air flowing through the fins.

Well, it would be to some degree - but then it would block the radiator and your engine would overheat.

[RhysQ]

Turbo Inlet Pipes...

I've e-mailed motorcade.za regarding the total cost of landing 1 unit and/or 5 units of the steel turbo inlet pipe (see page 1). If anyone would be interested in purchasing one please let me know. I know JCM308 is interested and i will be getting one myself (depending on total cost).

Anyone else?

If there is enough interest here i will start a group buy thread, maybe we can get more!

Rhys

[mozzzy_2000]

I've e-mailed motorcade.za regarding the total cost of landing 1 unit and/or 5 units of the steel turbo inlet pipe (see page 1). If anyone would be interested in purchasing one please let me know. I know JCM308 is interested and i will be getting one myself (depending on total cost).

Anyone else?

If there is enough interest here i will start a group buy thread, maybe we can get more!

Rhys

Ok I'm a little lost. Is this steel turbo inlet pipe in addition to a forge TIP or does it perform the same function? Also this may be ignorant but wouldn't a steel inlet pipe get hotter than a rubber/silicone pipe? Have these been tested in the 'real' world?

[shaneth]

Polo GTI, mate what does the kit include. Im not interested in one just checking. (dont worry im not a forum sponsor anymore so im not trying to sell stuff.) Is it just the metal section, if so what do you conect it to a samco pipe??

[RhysQ]

Ok I'm a little lost. Is this steel turbo inlet pipe in addition to a forge TIP or does it perform the same function? Also this may be ignorant but wouldn't a steel inlet pipe get hotter than a rubber/silicone pipe? Have these been tested in the 'real' world?

as far as i can see it performs the same function. have not checked about real world figures, those questions will come soon (see my next reply for more). as for steel piping, same could be said for intercooler piping and why it isn't all silicone. i'm not sure about the heating, but if the price is right i'll be happy to guinea pig it and let you all know. i would have thought the constant air flow would have been enough to keep it cool, it doesn't really sit in the pipe for long. also, i would imagine there would be faster air flow through steel than silicone.

Polo GTI, mate what does the kit include. Im not interested in one just checking. (dont worry im not a forum sponsor anymore so im not trying to sell stuff.) Is it just the metal section, if so what do you conect it to a samco pipe??

yeah i'll have to ask them what the kit includes. i just thought i'd firstly ask them what sort of cost it is to get it here before asking finer details. no point me knowing a all the info about the pipe and then finding out it'll be $200+ per unit landed, that'd just be a waste of time IMO.

once i get a reply from them, if the price looks good, i will ask what the kit includes, if it is just a straight replacement for the standard turbo inlet pipe, and have they tested it in real world conditions (heating issues).

stay posted!

Rhys

[VW GTI]

yeah i'll have to ask them what the kit includes. i just thought i'd firstly ask them what sort of cost it is to get it here before asking finer details. no point me knowing a all the info about the pipe and then finding out it'll be $200+ per unit landed, that'd just be a waste of time IMO.

once i get a reply from them, if the price looks good, i will ask what the kit includes, if it is just a straight replacement for the standard turbo inlet pipe, and have they tested it in real world conditions (heating issues).

stay posted!

Rhys

There are 2 sections of the TIP.

The top half of the stock one is a flimsy plastic part. The bottom half is metal - but this is the part that collapses under boost.

If this part only replaces the top (plastic) half of the stock one it is all but useless.

[RhysQ]

There are 2 sections of the TIP.

The top half of the stock one is a flimsy plastic part. The bottom half is metal - but this is the part that collapses under boost.

please explain how a metal cylinder collapses under boost and a flimsy plastic part doesn't

[shaneth]

i cant see the metal colapsing but it is a pretty sharp and restrictive turn on the metal part as it mounts on the turbo. The pics show a silicon pipe of sorts.

[RhysQ]

i cant see the metal colapsing but it is a pretty sharp and restrictive turn on the metal part as it mounts on the turbo. The pics show a silicon pipe of sorts.

yeah i know, i'm wondering if that's all part of the price....will find out soon i s'pose.

[Grant]

credit to Guy Harding for this picture.

[VW GTI]

please explain how a metal cylinder collapses under boost and a flimsy plastic part doesn't

The part that is made from flimsy plastic is like that because it doesn't need to be strong. Closer to the turbo where it turns quite sharply and gets smaller is where the pressure is.

'Collapse' doesn't necessarily mean it's blocking off, just slight movement.

[mozzzy_2000]

Quote:
Originally Posted by mozzzy_2000
Ok I'm a little lost. Is this steel turbo inlet pipe in addition to a forge TIP or does it perform the same function? Also this may be ignorant but wouldn't a steel inlet pipe get hotter than a rubber/silicone pipe? Have these been tested in the 'real' world?

as far as i can see it performs the same function. have not checked about real world figures, those questions will come soon (see my next reply for more). as for steel piping, same could be said for intercooler piping and why it isn't all silicone. i'm not sure about the heating, but if the price is right i'll be happy to guinea pig it and let you all know. i would have thought the constant air flow would have been enough to keep it cool, it doesn't really sit in the pipe for long. also, i would imagine there would be faster air flow through steel than silicone.

I can see your point. I suppose there are prons & cons with different materials. The point I was thinking though is that I would have thought the hot metal would heat up and stay hot and also absorb heat from the engine bay more than a silicone pipe would and thus the air intake is much hotter air reducing your power. Of course it may not function like this in real terms but I was just wondering that one of the reasons the Forge TIP works so well is that it is replacing the metal section that bolts directly to the turbo and being in silicone, it would stay cooler and not transfer as much heat to the turbo itself. Again I could be wrong but its a theory.

[Sharkie]

credit to Guy Harding for this picture.

The stock TIP collapses (as in almost totally closes up) under high boost in the plastic part just above the metal bit.

Looking at the pictures of the SA TIP, it seems to be a 2 piece as well. Metal at the top and silicon at the bottom. Is it any better ? Probably better than stock, likely worse than a Forge TIP. Even APR made a TIP and gave up selling it in Oz as it did the same job as a Forge for more $$$$.

It is likely to be very expensive shipping to Oz and customs will have a good look at it since it is metal in parts. I'd be surprised if it came in at under $200 each.... of which shipping is likely to be $100-150 each...