Custom Catch Cans Install (Diary) - Page 2

WolfPlayer · 12-08-2004, 03:50 AM

Bracket and cans installed on the car ...

http://www.bescaredracing.com/sti/ca...stall/bracket/
http://www.bescaredracing.com/sti/ca.../install/cans/

I might either a) try my 1/2" spacers or b) create 0.75" spacers from the 1" spacers just to make things a little tighter. However, it's totally cool exactly the way it is right now. Still not sure how the nipples will be facing once I start the hose routing (heh heh, he said nipples).

w00t. Up next is hose routing.

t

technica · 12-08-2004, 06:26 AM

Quote:

Originally Posted by WolfPlayer

Bracket and cans installed on the car ...

http://www.bescaredracing.com/sti/ca...stall/bracket/
http://www.bescaredracing.com/sti/ca.../install/cans/

I might either a) try my 1/2" spacers or b) create 0.75" spacers from the 1" spacers just to make things a little tighter. However, it's totally cool exactly the way it is right now. Still not sure how the nipples will be facing once I start the hose routing (heh heh, he said nipples).

w00t. Up next is hose routing.

t

Excellent. I really like the location and the OEM look. Can't wait to see the finish product, I'll place my order than.

donmei · 12-08-2004, 10:26 AM

Wolf,

Nice work. Your work complements the quality of the cans.

One (probably dumb) question though. Why do you need 2 cans??

Are you running them in series to make absolutely sure all the oil condenses out, or are there 2 "loops" that you want to dry?

Thanks,

Don

WolfPlayer · 12-08-2004, 11:10 AM

Quote:

Originally Posted by donmei

Wolf,

Nice work. Your work complements the quality of the cans.

One (probably dumb) question though. Why do you need 2 cans??

Are you running them in series to make absolutely sure all the oil condenses out, or are there 2 "loops" that you want to dry?

Thanks,

Don

Don,

I have not been satisfied with any explanation presented thusfar for combining the two systems. Yes, the stock 2 systems dump into the same area. However, this is completely different than the system where both are routed together (IMHO). Stock, both dump into a stream of air rushing to the turbo. Stock, there is a lot of cross sectional area for airflow across both tubes. Stock, there are times when the tubes won't have the same directional airflow. A lot of people do it because Perrin said it is OK. However, if they read all of Perrin's posts they will also see that he is running 2 cans too. I just wanted to be 100% safe and this was the only way that I could 'be sure'. The systems will remain separate and still be fed back into a moving airstream ... separately. Furthermore, the amount of cross sectional area in the hoses will remain the same so flow won't be hurt due to running hoses that aren't the appropriate size. Right now people are taking two 1/2" tubes and collapsing them down to one.

Well, there's my explanation. Lots of people won't agree ... some will ... but, this is still the absolute safest way if you want to be 100% sure. Is it necessary to do what I did? I really don't know. Will it hurt? No. Could the single catchcan cause problems over the long haul? Maybe ... there is more of a chance of that causing problems then my setup.

t

ej25lvr · 12-08-2004, 02:53 PM

would it be possible to use the measurements that you have on that pic of the cardboard to make a duplicate or have you made other changes since then? i really like your setup those cans look much cleaner than the greddy can im using now. im definatly gonna order two of those catch cans.

WolfPlayer · 12-09-2004, 04:47 AM

Quote:

Originally Posted by ej25lvr

would it be possible to use the measurements that you have on that pic of the cardboard to make a duplicate or have you made other changes since then? i really like your setup those cans look much cleaner than the greddy can im using now. im definatly gonna order two of those catch cans.

Those measurements are dang close. I'll check out the template when I get a chance and then let you know.

t

WolfPlayer · 12-11-2004, 12:31 PM

Finished up routing the hoses for the breather lines. My goal was to NOT destroy the stock hosing from the hardlines in front of the intercooler to the connection on the turbo inlet pipe. This way you can go back to stock if you want. Furthermore, by using the stock hose off the inlet duct you won't run the risk of trying to push a new hose on there and cracking that nipple off. That would NOT be fun.

Parts used:
Short piece of 1/2" Heater Hose
Two 3/8" to 1/2" hose connectors
3/8" hose that came with the catch cans

1) I ended up simply disconnecting the hose from the hardline in front of the intercooler and just changing it's placement such that the end disconnected now points to the passenger side. This is the return line from the catch can and dumps into the turbo inlet pipe. To the stock rubber hose I connected one of the adapters and then installed the AMW 3/8" line over the catch can.

2) To the hardline on the intercooler I connected a small section of 1/2" heater hose, the adapter, and then the AMW 3/8" line. I routed it over to the catch can following the same path as the other line. I couldn't get the AMW 3/8" line onto the stock hardline so that's the reason I used a short piece of 1/2" hose.

Everything is in black as to not draw attention to it. Here's the pics of the breather done:
http://www.bescaredracing.com/sti/ca...hose/breather/

t

WolfPlayer · 02-04-2005, 05:14 AM

Update,

I finally got around to working on the PCV can. Piece of cake. It's not totally done because I bought the wrong connector. I'll fix that and get pics within the next couple of days. However, simply pop off the stock silver hose clamp from the PCV line at the sensor on the turbo inlet hose. I thought this would be a difficult thing. However, this clamp is 100% reusable even though it doesn't look that way. Pull the hose off the sensor and then slap in a 1/2" to 3/8" hose adapter. The hose then routes directly over to the catch can. From the turbo inlet mount up a new section of 1/2" hose. We can then adapt this to 3/8" and then back to the catch can. Beautiful. Everything is 100% reversible and NOTHING was damaged in the process. w00t.

Pssst. I also installed my hella horns last night. These things are monstrously loud (I installed the relay too so that they get direct battery power).

t

Sands · 02-04-2005, 05:23 AM

That looks like an OEM installation - the best kind of mod there is.

Perhaps you could have used a few Ts to only use one can? (I'm not familiar with the ventilation system on the STI though, just asking)

WolfPlayer · 02-04-2005, 05:33 AM

I didn't want to use one can. It is my belief that the systems are separate and should be kept that way (even though they both dump into the Turbo intlet duct). It would have been easy to use one can ... I just followed my belief of separate systems. FURTHERMORE, and this is very important, people here are forgetting that the factory uses two 1/2" lines: one for the breathers and one for PCV. Taking two 1/2" lines and running them through one 3/8" line is just plain stupid (for those running one 3/8" line and T'ing PCV and Breathers). This can cause excessive pressure buildup in the crankcase and blow seals. Moreover, this excessive pressure buildup is also now plumbed back into the crankcase breathers because you tied the system together. I just think this is a bad idea all around. Granted, I am going from 1/2" down to 3/8". However, I have a total of two 3/8" lines working in my system.

t

Sands · 02-04-2005, 09:59 AM

I'll need to run the numbers but hose size doesn't scale the way you'd think from a flow perspective.

So 2 - 0.5" hoses should really be combined into 1 - 0.675" hose (or something). You don't double it to get double the flow.

But yes, going down in size for double the flow rate is pretty stupid.

I understand your comments on 1 and 2 systems. Not like the cans are THAT expensive anyway - might as well do it right like you did.

WolfPlayer · 02-04-2005, 01:01 PM

Quote:

Originally Posted by Sands

I'll need to run the numbers but hose size doesn't scale the way you'd think from a flow perspective.

So 2 - 0.5" hoses should really be combined into 1 - 0.675" hose (or something). You don't double it to get double the flow.

I completely understand that. If I stated something that implied that then I need to reword it. My point is that nobody should be taking two 1/2" lines and combining them both into one 3/8" line. T'ing things together like Perrin suggests does this exact thing - and that is just wrong - IMHO. These cars get a good amount of blowby!

t

Sands · 02-04-2005, 05:14 PM

Yup - we're in violent agrement.

killer mod, btw

WolfPlayer · 02-04-2005, 05:58 PM

Quote:

Originally Posted by Sands

Yup - we're in violent agrement.

killer mod, btw

Thanks!

Today I picked up a 1/2" hose that has a 90 degree premolded bend in it. This will allow me to come off the PCV hose sensor nipple very easily. I'll post info and pics later after I get the final touches on this assembly completed tomorrow morning.

I really like that fact that this whole system was constructed without harming a single factory item and is 100% reversible ... yet 100% functional and very good quality without being pimp. Can't wait to have it totally completed tomorrow.

t

WolfPlayer · 02-05-2005, 08:33 AM

Everything is done! w00t!

PCV Install:
http://www.bescaredracing.com/sti/ca...tall/hose/pcv/

Everything Complete:
http://www.bescaredracing.com/sti/catchcans/complete/

t

12-08-2004, 03:50 AM	#16
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,577 Join Date: Jun 2004 Trader Rating: (6)	Bracket and cans installed on the car ... http://www.bescaredracing.com/sti/ca...stall/bracket/ http://www.bescaredracing.com/sti/ca.../install/cans/ I might either a) try my 1/2" spacers or b) create 0.75" spacers from the 1" spacers just to make things a little tighter. However, it's totally cool exactly the way it is right now. Still not sure how the nipples will be facing once I start the hose routing (heh heh, he said nipples). w00t. Up next is hose routing. t This ad is not endorsed by this member. Please register or login to hide this ad.

12-08-2004, 10:26 AM	#18
donmei S204 Racer Car: 04 WRB STi Fav Mod: Trailer Hitch Location: CT, U.S.A. Posts: 3,140 Join Date: Feb 2004 Trader Rating: (0)	Please help me... Wolf, Nice work. Your work complements the quality of the cans. One (probably dumb) question though. Why do you need 2 cans?? Are you running them in series to make absolutely sure all the oil condenses out, or are there 2 "loops" that you want to dry? Thanks, Don

02-04-2005, 05:14 AM	#23
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,577 Join Date: Jun 2004 Trader Rating: (6)	RE: Catch can Question?? Update, I finally got around to working on the PCV can. Piece of cake. It's not totally done because I bought the wrong connector. I'll fix that and get pics within the next couple of days. However, simply pop off the stock silver hose clamp from the PCV line at the sensor on the turbo inlet hose. I thought this would be a difficult thing. However, this clamp is 100% reusable even though it doesn't look that way. Pull the hose off the sensor and then slap in a 1/2" to 3/8" hose adapter. The hose then routes directly over to the catch can. From the turbo inlet mount up a new section of 1/2" hose. We can then adapt this to 3/8" and then back to the catch can. Beautiful. Everything is 100% reversible and NOTHING was damaged in the process. w00t. Pssst. I also installed my hella horns last night. These things are monstrously loud (I installed the relay too so that they get direct battery power). t

02-04-2005, 05:23 AM	#24
Sands Professional STI Driver Car: Motorsports! Fav Mod: Engineering Manager Location: Des Moines, IA Posts: 464 Join Date: Sep 2004 Trader Rating: (0)	Problems with K&N Typhoon That looks like an OEM installation - the best kind of mod there is. Perhaps you could have used a few Ts to only use one can? (I'm not familiar with the ventilation system on the STI though, just asking)

02-04-2005, 05:33 AM	#25
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,577 Join Date: Jun 2004 Trader Rating: (6)	Re: RE: Engine starting to loosen up I didn't want to use one can. It is my belief that the systems are separate and should be kept that way (even though they both dump into the Turbo intlet duct). It would have been easy to use one can ... I just followed my belief of separate systems. FURTHERMORE, and this is very important, people here are forgetting that the factory uses two 1/2" lines: one for the breathers and one for PCV. Taking two 1/2" lines and running them through one 3/8" line is just plain stupid (for those running one 3/8" line and T'ing PCV and Breathers). This can cause excessive pressure buildup in the crankcase and blow seals. Moreover, this excessive pressure buildup is also now plumbed back into the crankcase breathers because you tied the system together. I just think this is a bad idea all around. Granted, I am going from 1/2" down to 3/8". However, I have a total of two 3/8" lines working in my system. t

12-08-2004, 02:53 PM	#20
ej25lvr Junior STI Driver Car: My STI and working on cars in general Fav Mod: Mechanic Location: Richmond,Virginia Posts: 63 Join Date: Feb 2004 Trader Rating: (0)	would it be possible to use the measurements that you have on that pic of the cardboard to make a duplicate or have you made other changes since then? i really like your setup those cans look much cleaner than the greddy can im using now. im definatly gonna order two of those catch cans.

12-11-2004, 12:31 PM	#22
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,577 Join Date: Jun 2004 Trader Rating: (6)	Finished up routing the hoses for the breather lines. My goal was to NOT destroy the stock hosing from the hardlines in front of the intercooler to the connection on the turbo inlet pipe. This way you can go back to stock if you want. Furthermore, by using the stock hose off the inlet duct you won't run the risk of trying to push a new hose on there and cracking that nipple off. That would NOT be fun. Parts used: Short piece of 1/2" Heater Hose Two 3/8" to 1/2" hose connectors 3/8" hose that came with the catch cans 1) I ended up simply disconnecting the hose from the hardline in front of the intercooler and just changing it's placement such that the end disconnected now points to the passenger side. This is the return line from the catch can and dumps into the turbo inlet pipe. To the stock rubber hose I connected one of the adapters and then installed the AMW 3/8" line over the catch can. 2) To the hardline on the intercooler I connected a small section of 1/2" heater hose, the adapter, and then the AMW 3/8" line. I routed it over to the catch can following the same path as the other line. I couldn't get the AMW 3/8" line onto the stock hardline so that's the reason I used a short piece of 1/2" hose. Everything is in black as to not draw attention to it. Here's the pics of the breather done: http://www.bescaredracing.com/sti/ca...hose/breather/ t

02-04-2005, 09:59 AM	#26
Sands Professional STI Driver Car: Motorsports! Fav Mod: Engineering Manager Location: Des Moines, IA Posts: 464 Join Date: Sep 2004 Trader Rating: (0)	I'll need to run the numbers but hose size doesn't scale the way you'd think from a flow perspective. So 2 - 0.5" hoses should really be combined into 1 - 0.675" hose (or something). You don't double it to get double the flow. But yes, going down in size for double the flow rate is pretty stupid. I understand your comments on 1 and 2 systems. Not like the cans are THAT expensive anyway - might as well do it right like you did.

02-04-2005, 05:14 PM	#28
Sands Professional STI Driver Car: Motorsports! Fav Mod: Engineering Manager Location: Des Moines, IA Posts: 464 Join Date: Sep 2004 Trader Rating: (0)	Yup - we're in violent agrement. killer mod, btw

02-05-2005, 08:33 AM	#30
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,577 Join Date: Jun 2004 Trader Rating: (6)	RE: FS MI: STi Utec and other parts Everything is done! w00t! PCV Install: http://www.bescaredracing.com/sti/ca...tall/hose/pcv/ Everything Complete: http://www.bescaredracing.com/sti/catchcans/complete/ t This ad is not endorsed by this member. Please register or login to hide this ad.