HKS 3000pipe

Turbo Habanero

New Member
Apr 28, 2009
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HKS 3000 pipe or Throttle Body pipe witch ever you prefer to call it.

Any one ever used this or heard anything about how much it helps ?

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NewWestSupras

SoupLvr
Mar 1, 2006
611
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White Rock
Aside from the bling factor, I've never seen any verifiable performance gains just from that. As it's used alot in conjunction with bigger "hardpipes" all the way through, I'd go with that system. That's proven to be a good improvement by several members. gl.
 

NewWestSupras

SoupLvr
Mar 1, 2006
611
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White Rock
Well, it depends somewhat on your intercooler and tb. If you are going to all the trouble of hardpipes, I'd get a decent aftermarket intercooler. As far as size goes, I ran 3" on mine, but had a ffim with a bigger tb on it. gl.
 

gaboonviper85

Supramania Contributor
Jan 13, 2008
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The stock 3000 pipe has a slight restriction in it....it's opening is smaller than the throttle body which makes no sense...performance gain from the hks is little to nothing but the hks pipe was also make 20 years ago....it was a good part in it's day but now there are much better intercooler pipes that are a solid 2.5" the whole way.

It's a cool part for what it is but it's pricetag is a bit high considering most ic kits replace the 3000 pipe completely....not to mention most hks pipes have the provision for the stock bosh bypass valve which is indeed ugly....

But if this was need for speed or forza then it's surely + 2500 style points
 

Turbo Habanero

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gaboonviper85;1398803 said:
The stock 3000 pipe has a slight restriction in it....it's opening is smaller than the throttle body which makes no sense...performance gain from the hks is little to nothing but the hks pipe was also make 20 years ago....it was a good part in it's day but now there are much better intercooler pipes that are a solid 2.5" the whole way.

It's a cool part for what it is but it's pricetag is a bit high considering most ic kits replace the 3000 pipe completely....not to mention most hks pipes have the provision for the stock bosh bypass valve which is indeed ugly....

But if this was need for speed or forza then it's surely + 2500 style points

O darn i thought that pretty HKS on the IC pipe would make it faster :)
 

Canuckrz

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Jan 13, 2009
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Calgary, Alberta
gaboonviper85;1398803 said:
The stock 3000 pipe has a slight restriction in it....it's opening is smaller than the throttle body which makes no sense...
There is a reason for the varying diameters but it escapes me now.
 

turbotoy

New Member
Apr 4, 2005
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The unit has holes taped in the correct location to fasten the ISC/PCV/BOV hardpipes. It also eliminates the port for the BOV, which is nice when using an aftermarket BOV flanged to the hardpipe.

The stock 3000 pipe transitions quite gradually to just under the diameter of the throttle body. The expansion is gradual enough such that flow separation will be minimal, resulting in a minimal loss factor.

The issue develops when you replace the OEM intercooler pipes with 2.5" (or 60mm) diameter pipe. With the OEM 3000 pipe and a normal 2.5" to 2" reducing coupler you usually end up with a very abrupt reduction at the 3000 pipe entrance. The fluid must then expand back along the length of the 300 pipe. Because the inflow condition to the OEM 3000 pipe is vastly different from what it was designed for (reasonably well developed flow) there is the strong potential for increased wall separation with this configuration. This is primarily due to change in fluid momentum resulting from the 2.5" to ~2" contraction. Picture a fluid streamline through the reducer than expanding; maintaining wall attachment will be more difficult due to the momentum of the flow towards the axis of the pipe (I need a chalkboard). This configuration has the potential to result in a much greater loss factor.

In my case, I still had to use an expansion coupling, but the subsequent reduction and expansion that would exist with the OEM 3000 pipe is eliminated.

However, honestly, the real driver was to make for a tidy installation.
 

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turbotoy

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Apr 4, 2005
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Turbo Habanero;1399616 said:
couldnt you just make your own?

Of course. The time it would take me to produce a unit with all the same features makes $100 for the HKS 3000 pipe seem trivial. It would also be worthless to anyone else in the future. Someone will always be willing to spend money on the HKS 3000 pipe, especially when they are no longer available new.
 

Turbo Habanero

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turbotoy;1399713 said:
Of course. The time it would take me to produce a unit with all the same features makes $100 for the HKS 3000 pipe seem trivial. It would also be worthless to anyone else in the future. Someone will always be willing to spend money on the HKS 3000 pipe, especially when they are no longer available new.

What exactly are the features of the HKS pipe?
 

Terry steward

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Oct 18, 2007
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benfleet essex
I have the 3000 pipe,and have just replaced my upper ic pipe with 2.75",from the spearco outlet,which is 2.5,i put a 90 deg piece of pipe on,pointing upwards,then used the straight silicon converter,to go up to 2.75", it comes up through the hole where the old airbox used to be,and up to the ssqv,i had a flange welded on the 2.75" pipe,that then goes into the hks 3000 pipe,i noticed in an earlier post that the bigger the pipe the more the lag,why is that,i thought i was doing myself a favour,in making it equal size to the hks 3000 pipe,from as near to the intercooler as i could.id also had a blitz nur spec fitted,which was a bigger diameter than the 2.5 exhaust i had before,i was making 338 bhp and 394lb torque,but i was expecting more now,with these latest mods,would that not be true ? i have noticed however,that off boost drivability and acceleration,did improve,BUT,since refitting my AEM,which came back after a recent repair,off boost driving is slower than with the stock ecu !!
 
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turbotoy

New Member
Apr 4, 2005
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Turbo Habanero;1399908 said:
What exactly are the features of the HKS pipe?

- Ridges around the circumference of the pipe at each end (not trivial to fabricate).
- Two 6mm and one 8mm female threaded hole with associated bosses.
- A taper in the pipe at the throttle body end such that the end of the pipe is parallel with the throttle body.

Maybe I'm not being clear. There are many ways to achieve the same function. The HKS pipe achieves that function with OEM quality fit and finish.