I took most of the water and air hoses off my turbo on the weekend so my dad could take them off and make some pretty silicone replacements for me. Unlike any of the other air ducting tubes the ones that connect the intercooler to the hard pipes are a moulding. They have a complex longitudonal cross section that looks like it was designed to help align the pipes. Does anyone have any experience in replacing these with normal hoses? Im going to get some flared tubes made up anyway so I will test them out, would just be good to know if anyone else has done it.
Hard Pipe To Intercooler Hoses
- Thread starter barks944
- Start date
I would be careful swapping the intercooler hard pipes for silicone. I gave it some thought myself and then decided just to change the rubber bits.
The pressure through the intercooler will cause the pipes to baloon, not greatly but enough to cause latency in the control line to the wastegate.
The pressure through the intercooler will cause the pipes to baloon, not greatly but enough to cause latency in the control line to the wastegate.
PSH
PCGB Member
Hi Tom
I've changed the rubber hoses for silicone ones made by Performance Silicone Hoses( well most everything is changed now..[
]) for my hard pipe hoses, looks pretty and they have a higher rating than the Porsche originals( or so I'm told)..
As John has said don't change the hardpipes for silicone( although I'm not sure that's what you meant) as these will flex under boost and thus loose you response time.
Pete
I've changed the rubber hoses for silicone ones made by Performance Silicone Hoses( well most everything is changed now..[
]) for my hard pipe hoses, looks pretty and they have a higher rating than the Porsche originals( or so I'm told).. As John has said don't change the hardpipes for silicone( although I'm not sure that's what you meant) as these will flex under boost and thus loose you response time.
Pete
I just meant the rubber connection bits not the hard pipes. The final question is what colour? I said red but I think I might go to blue.
Do your hard pipes look like they have had ridges bent into them? Looks like somone has smacked them onto a corner or somthing. Both mine have them so I'm guessing they are for clearance purposes.
Do your hard pipes look like they have had ridges bent into them? Looks like somone has smacked them onto a corner or somthing. Both mine have them so I'm guessing they are for clearance purposes.
Diver944
Active member
The standard hardpipes both have some 'flat bits' in them and the ends have flared ridges to stop the silicon pipes blowing off.
Both Lindsey Racing and SpeedForce Racing in the states make aftermarket hard pipes with smoother curves and better flow, but you'll need to ditch your airbox to make them fit
Both Lindsey Racing and SpeedForce Racing in the states make aftermarket hard pipes with smoother curves and better flow, but you'll need to ditch your airbox to make them fit
PSH
PCGB Member
Well as you can see in my pic I have no airbox, mine has a MAF unit fitted which no longer uses the airbox. There are many ways to modify the air intake, i've recently ordered a number of items to redo mine which I'll post with pics once completed.
As for electronic boost control if you have already modified your wastegate and turbo and wish to get the max from them then yes go for an EBC. I had been using a manual boost control for many years until recently changing to the Apexi AVCR.. let's just say it transformed the car...[
]Pete
sawood12
New member
ORIGINAL: PSH
The originals have ridges, my replacements do not and they are blue...[
Pete - nice engine bay mate. But there is one thing that is missing if I may be so bold..... A nice trick billet fuel rail [
]Tom - regarding EBC's one of the finest ones you can buy and is well used and known in the 944 Turbo community worldwide is the Apexi AVC-R [
]
Diver944
Active member
Whatever you do, make sure you do something.
My airbox had damaged fixings and one of them got sucked into the turbocharger and then into the engine [
][][]It's the reason the engine is now a 3.2L (and I have a very empty wallet [
] )A new airbox from Porsche is around £130
PSH
PCGB Member
haha... IIRC you had one for sale....[
]To be honest it's not missing by chance, I have researched into the billet fuel rails and how they have caused problems with cracked pipe unions followed with an engine bay fire. I believe this has been mainly with the Lindsey rails which I know yours isn't but playing safe so far I've resisted it, having said that yours did look very nice mate...[
]
sawood12
New member
ORIGINAL: PSH
haha... IIRC you had one for sale....[
To be honest it's not missing by chance, I have researched into the billet fuel rails and how they have caused problems with cracked pipe unions followed with an engine bay fire. I believe this has been mainly with the Lindsey rails which I know yours isn't but playing safe so far I've resisted it, having said that yours did look very nice mate...[
Strange you should say that as the main reason why people go to the billet ones is because the stock ones are prone to cracking and leaking also!! The Lindsay ones are far inferior to the CEP ones though!!!
Red [
]
Actually mine is red and blue now as I replaced the hard pipe to intercooler doughnuts with standard blue Samco hose. I can't remember what the size was but they are a so'n'so to fit as one side is bigger than the other.
While you are on the job make sure you get the best clips you can - there is nothing more ebarrasing than having to be recovered at a track day because your boost pipes have blow off (is there Paul) [smug] obviously this doesn't happen if you have MAP not MAF [/smug]
Diver944
Active member
John said
While you are on the job make sure you get the best clips you can - there is nothing more embarrasing than having to be recovered at a track day because your boost pipes have blown off (is there Paul)
Shuttit smartarse [:-]
Actually it doesn't matter what clips you have but if you loosen them off just before a trackday and forget to tighten them up again you are asking for a recovery truck situation and endless ribbing from the MAP boyz
While you are on the job make sure you get the best clips you can - there is nothing more embarrasing than having to be recovered at a track day because your boost pipes have blown off (is there Paul)
Shuttit smartarse [:-]
Actually it doesn't matter what clips you have but if you loosen them off just before a trackday and forget to tighten them up again you are asking for a recovery truck situation and endless ribbing from the MAP boyz
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