Notices
996 Forum
Sponsored by:
Sponsored by: LN Engineering

Orange Cap mod

 
Old 01-16-2019, 12:02 AM
  #31  
professorman
User
 
professorman's Avatar
 
Join Date: Apr 2016
Location: Virginia Beach
Posts: 198
Likes: 0
Received 0 Likes on 0 Posts
Default

I see two popular methods for doing this: (1) Orange cap, which is no longer available, and (2) Castrol oil cap. I do not have a castrol oil bottle right now, and mainly use Mobil 1. I see some people mention a trip to Home Depot, but they didn’t share any other details which item to buy.

What othef options do I have for doing the Orange Cap mod?
professorman is offline  
Old 01-16-2019, 12:32 AM
  #32  
TexSquirrel
Addict
Rennlist Member
 
TexSquirrel's Avatar
 
Join Date: Aug 2016
Location: Richmond, T E X A S !
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default

Oatley 2" test plug from Home Depot or Lowes:
https://www.homedepot.com/p/Oatey-2-...0CMw&gclsrc=ds
TexSquirrel is offline  
Old 01-16-2019, 01:24 AM
  #33  
professorman
User
 
professorman's Avatar
 
Join Date: Apr 2016
Location: Virginia Beach
Posts: 198
Likes: 0
Received 0 Likes on 0 Posts
Default




Can I still install the stock air tube over that test plug? It looks kind of bulky.


EDIT: I found this tread which gave institutions how to request the sample.

https://rennlist.com/forums/996-foru...e-cap-mod.html

Last edited by professorman; 01-16-2019 at 01:45 AM.
professorman is offline  
Old 01-16-2019, 11:36 AM
  #34  
808Bill
Super User
 
808Bill's Avatar
 
Join Date: Dec 2016
Location: Kauai
Posts: 4,649
Likes: 0
Received 0 Likes on 0 Posts
Default


Last edited by 808Bill; 01-16-2019 at 11:55 AM.
808Bill is offline  
Old 01-25-2019, 05:02 PM
  #35  
professorman
User
 
professorman's Avatar
 
Join Date: Apr 2016
Location: Virginia Beach
Posts: 198
Likes: 0
Received 0 Likes on 0 Posts
Default

Here is my video of the Orange Cap Mod. I am loving it.


professorman is offline  
Old 01-25-2019, 09:58 PM
  #36  
wyovino
Addict
Rennlist Member
 
wyovino's Avatar
 
Join Date: Jun 2010
Posts: 2,466
Likes: 0
Received 0 Likes on 0 Posts
Default

I don't really hear much of a difference with mine. But then again, I'm old. Nice job on the video!
wyovino is offline  
Old 01-29-2019, 06:26 PM
  #37  
giortire
User
 
giortire's Avatar
 
Join Date: May 2018
Location: Pensacola Beach, FL
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 808Bill View Post
FYI....The 2" knockout test cap is too big, and will not work. I will try the 1-1/2" next, and give feedback.
giortire is offline  
Old 01-29-2019, 08:14 PM
  #38  
professorman
User
 
professorman's Avatar
 
Join Date: Apr 2016
Location: Virginia Beach
Posts: 198
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by bull3t View Post
I did the helmholtz delete about a year ago. I went with the Oatey test plug and a 996 silicone tube off ebay. I ended up taking it off because it felt like it lost low end torque. I revisited this mod about 2 weeks ago after I cleaned the throttle body and changed the air filter. I noticed that in 4th gear when I'm going past 5,500 rpm it takes longer to rev up than without it. I have since put it back to stock and it climbs faster now. Anyone else experience this?
This is interesting feedback. I see a lot of people asking about removing the helmholtz to theoretically increase air flow over the stock filter.
professorman is offline  
Old 01-29-2019, 08:20 PM
  #39  
dan_189
Addict
Rennlist Member
 
Join Date: Nov 2014
Location: Melbourne, Australia
Posts: 2,708
Likes: 0
Received 0 Likes on 0 Posts
Default

I've read no performance loss or gain... Few people saying otherwise.

In another thread I started here: https://rennlist.com/forums/996-foru...resonator.html

Porschetech3 did say there was no gain or loss - if my memory serves me correctly...
dan_189 is offline  
Old 01-30-2019, 05:34 PM
  #40  
giortire
User
 
giortire's Avatar
 
Join Date: May 2018
Location: Pensacola Beach, FL
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default

I bought the 1-1/2' knockout cap, from Home Depot, after the 2" was too big, and while it almost seems too small, with the lip it fits perfectly. I took the car for a ride, and definitely heard a difference in the 5K and up range. It had a very nice sound. I felt no difference in the power band. When I returned, I popped the hose off to make sure the cap had not moved, and it was still sitting perfectly.

All in all, a pretty cool mod for no time, and no money.
giortire is offline  
Old 01-30-2019, 05:40 PM
  #41  
dan_189
Addict
Rennlist Member
 
Join Date: Nov 2014
Location: Melbourne, Australia
Posts: 2,708
Likes: 0
Received 0 Likes on 0 Posts
Default

Here's the other end of the scale...

https://www.ebay.com.au/itm/Porsche-...k/322582790907

Have one of these on order - I didn't like the idea of having a plastic cap in the intake and had been looking for a metal one.

Thanks to cds72911 for finding and sharing this.
dan_189 is offline  
Old 01-30-2019, 05:53 PM
  #42  
giortire
User
 
giortire's Avatar
 
Join Date: May 2018
Location: Pensacola Beach, FL
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default

Hi Dan....I saw this on another thread, and considered it, but first wanted to see if it really did anything before considering spending the 65 dollars. I will admit, there is a part of me that would like to have that nicely machined piece of art, but want to see if I even keep the mod. I am getting a Fister mod done to my exhaust in a couple of weeks, so will decide then. Good luck, I hope you enjoy the new sound!
giortire is offline  
Old 01-30-2019, 05:56 PM
  #43  
dan_189
Addict
Rennlist Member
 
Join Date: Nov 2014
Location: Melbourne, Australia
Posts: 2,708
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by giortire View Post
Hi Dan....I saw this on another thread, and considered it, but first wanted to see if it really did anything before considering spending the 65 dollars. I will admit, there is a part of me that would like to have that nicely machined piece of art, but want to see if I even keep the mod. I am getting a Fister mod done to my exhaust in a couple of weeks, so will decide then. Good luck, I hope you enjoy the new sound!
Probably a good way to go, I thought if I didn't like it i'd just resell it here locally - lucky for you guys its $65 for me with the exchange rate and GST ebay is now charging it became $105AUD
dan_189 is offline  
Old 01-30-2019, 05:57 PM
  #44  
giortire
User
 
giortire's Avatar
 
Join Date: May 2018
Location: Pensacola Beach, FL
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by dan_189 View Post
Probably a good way to go, I thought if I didn't like it i'd just resell it here locally - lucky for you guys its $65 for me with the exchange rate and GST ebay is now charging it became $105AUD
Ouch!!!!
giortire is offline  
Old 01-30-2019, 06:05 PM
  #45  
TexSquirrel
Addict
Rennlist Member
 
TexSquirrel's Avatar
 
Join Date: Aug 2016
Location: Richmond, T E X A S !
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default

The 2" works if you're replacing the silicone hose.
If you're staying with the stock hose, you'll need the smaller one.
I first tried with duct tape and then decided it sounded a little better.
I went with 2" and new hose, before I gave it away.
I now have Fabspeed for cool noise and cool looks.
No, with the orange cap mod you'll see no change in HP or Torque, but staying with what most "high performance" parts companies say:

TexSquirrel High Performance Bottle Cap Mod

Up to 10HP and 15 ft/lbs of Torque increase*

* Performance increase is not guaranteed. Results may vary. Not responsible for any damage caused by misuse.

Please don't order one from me!
TexSquirrel is offline  

Thread Tools
Search this Thread
Quick Reply: Orange Cap mod


Contact Us - About Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: