PCV routing question - Team Camaro Tech
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post #1 of 20 (permalink) Old Sep 6th, 14, 05:08 PM Thread Starter
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Marc
 
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PCV routing question

On my 383 I have an Edelbrock RPM Air gap intake. There is a threaded port that I wanted to run my power brake booster, but my carb is in the way. (Holley 750hp) SO, I have my brake booster connected to the carb base plate- where is where I want to hook the valve cover PCV line. Any suggestions on how to route/re-route to get both?
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post #2 of 20 (permalink) Old Sep 6th, 14, 05:13 PM
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Re: PCV routing question

Quote:
Originally Posted by SS69Cam View Post
On my 383 I have an Edelbrock RPM Air gap intake. There is a threaded port that I wanted to run my power brake booster, but my carb is in the way. (Holley 750hp) SO, I have my brake booster connected to the carb base plate- where is where I want to hook the valve cover PCV line. Any suggestions on how to route/re-route to get both?
Put a "T" in the line that come off the base plate

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post #3 of 20 (permalink) Old Sep 6th, 14, 05:51 PM
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Re: PCV routing question

I have heard this before about the carb being in the way. Vac port is directly under the rear carb bowl. I run the factory vacumn multiport on my air gap , using a short brass street ell into the port you are talking about. It allows that multiport connection to mount horizontally , using the inverted flare nipple for booster vacumn and headlamp doors.
The vacumn port behind the carb base is what I use for the pcv .

Don
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post #4 of 20 (permalink) Old Sep 6th, 14, 07:47 PM
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Re: PCV routing question

Quote:
Originally Posted by Vega$69 View Post
Put a "T" in the line that come off the base plate
I have read a few articles warning against this for reasons of oil contamination entering the brake booster this way.

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post #5 of 20 (permalink) Old Sep 6th, 14, 09:00 PM
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Re: PCV routing question

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Originally Posted by PA Camaro Guy View Post
I have read a few articles warning against this for reasons of oil contamination entering the brake booster this way.
With a properly operating pcv valve you will not get any contamination.

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post #6 of 20 (permalink) Old Sep 7th, 14, 05:32 AM
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Steiner
 
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Re: PCV routing question

Edelbrock makes low profile fitting for this. Use it along with a 1/8" NPT nipple. There shouldn't be an issue with this but if have one and have the hood space you can use a carb spacer to correct it.
http://www.summitracing.com/parts/edl-8096/overview/
http://www.summitracing.com/search/b...rder=Ascending

If you want to run a T and have any concerns, you can use a C3 Corvette brake booster charcoal filter made just for keeping gases out of the booster. I use one myself since due to my setup I have to run PCV, booster, cruise control, and vac advance all off one port. Most parts stores carry them in stock.
http://www.autozone.com/autozone/par...lter/_/N-8kp7e

Info on filter:
http://www.corvetteforum.com/forums/...er-filter.html

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Last edited by Steiner; Sep 7th, 14 at 05:47 AM.
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post #7 of 20 (permalink) Old Sep 7th, 14, 05:53 AM
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Re: PCV routing question

Quote:
Originally Posted by Steiner View Post
Edelbrock makes low profile fitting for this. Use it along with a 1/8" NPT nipple. There shouldn't be an issue with this but if have one and have the hood space you can use a carb spacer to correct it.
http://www.summitracing.com/parts/edl-8096/overview/
http://www.summitracing.com/search/b...rder=Ascending

If you want to run a T and have any concerns, you can use a C3 Corvette brake booster charcoal filter made just for keeping gases out of the booster. I use one myself since due to my setup I have to run PCV, booster, cruise control, and vac advance all off one port. Most parts stores carry them in stock.
http://www.autozone.com/autozone/par...lter/_/N-8kp7e

Info on filter:
http://www.corvetteforum.com/forums/...er-filter.html
Steiner, Thanks for the tip on the booster filter, makes sense. As for the Summit brass ell, that's the style I found but mine was 3/8 x 3/8".
Thanks for the tip.

Don
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post #8 of 20 (permalink) Old Sep 7th, 14, 05:56 AM
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Re: PCV routing question

Side note to above....

What model Holley is it? Does it not have another 3/8 port under the front edge? 750 Street HP pic:


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TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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post #9 of 20 (permalink) Old Sep 7th, 14, 05:58 AM
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Re: PCV routing question

You bet, Don.

'69 Camaro
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TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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post #10 of 20 (permalink) Old Sep 7th, 14, 06:01 AM
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Re: PCV routing question

Quote:
Originally Posted by Steiner View Post
Side note to above....

What model Holley is it? Does it not have another 3/8 port under the front edge? 750 Street HP pic:

Looks like the base of my 3310-4 , could look like a 4780 , I use that back base port for the pcv hose. Don't use front ports as I have a mechanical advance. thanks M8

Don
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post #11 of 20 (permalink) Old Sep 7th, 14, 06:09 AM
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Re: PCV routing question

Yeah, that was meant to be right under my other post and directed at Marc but you slipped in there while I was typing it up so it looked like I was asking you.

Actually, I tried to put it in my original post but was once again bitten by the edit timer.

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TKO 600-Moser 3.42-Detroit Truetrac
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post #12 of 20 (permalink) Old Sep 7th, 14, 07:42 AM
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Re: PCV routing question

Quote:
Originally Posted by Steiner View Post
Yeah, that was meant to be right under my other post and directed at Marc but you slipped in there while I was typing it up so it looked like I was asking you.

Actually, I tried to put it in my original post but was once again bitten by the edit timer.
My apology to you and Marc.

Don
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post #13 of 20 (permalink) Old Sep 7th, 14, 08:11 AM
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Re: PCV routing question

What? Why? No apologies needed man.

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
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post #14 of 20 (permalink) Old Sep 7th, 14, 10:42 AM
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Re: PCV routing question

Quote:
Originally Posted by Steiner View Post
What? Why? No apologies needed man.
Steiner, while I got you on the line. I have a 850 HP and it runs well , better than my 3310 but does not have the crispness of response of the 3310.

Since you brought up the base picture of the 750 HP, Do you think I would notice any response or difference if I went to the 750HP?
I would set the hp up with same jetting, pv , etc as the 3310. The only differences I see are the downleg boosters.
Even thinking a bout what may be coming to us in line of E85.
Opps, I may have run into a snag here, these HP carbs don't have electric chokes.
Opinion?
Anyone else?

Don
TC # 349
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post #15 of 20 (permalink) Old Sep 7th, 14, 11:07 AM
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Re: PCV routing question

Don, I'm probably the last person to ask. All I could say is that when you went from the 3310 to the 850, you surely took a hit in air velocity at low speeds which you'd definitely feel in the response department. Velocity isn't just getting air into the engine but also what causes the pressure drop to get the main circuit flowing fuel instead of relying so much on a pump shot to get going. I don't know what kind of power that bad little thing makes, but consider that my 400 only needed a 780 to feed 500hp on the dyno of course it peaked lower than yours does.

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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