Porting Manis - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 03-05-2006, 11:19 PM   #1
Senior Member
Certified GM nut
Thread Starter
 
Join Date: May 2005
Location: Wickliffe, Ohio
Posts: 2,155
Thanks: 0
Thanked 0 Times in 0 Posts
McGrath is on a distinguished road
Default Porting Manis

How hard is it to port your own manifolds? Are they tricky to get off or back on? I've been thinking about this for a few days now, thinking of something to do when it warms up. It would be a nice afternoon project with my dad. Got everything needed to do this except for a welder which I could borrow from a buddy or rent (& new gaskets).

If you've done it speak up and offer any tips or tricks please

Thanks,
Ed
McGrath is offline   Reply With Quote
Old 03-06-2006, 08:38 AM   #2
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Ed...

I should have pics up of mine from Hulkspeed by the end of the week.
BillBoost37 is offline   Reply With Quote
Old 03-06-2006, 12:36 PM   #3
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

Hulkspeed is the way to go for PEMS
1993 SLE is offline   Reply With Quote
Old 03-06-2006, 01:39 PM   #4
Senior Member
Posts like a Camaro
 
Join Date: Jan 2002
Location: Simi Valley, CA
Posts: 971
Thanks: 0
Thanked 1 Time in 1 Post
99BonnevilleSE is on a distinguished road
Default

Porting the stock Series II manifolds are not hard. Taking them on and off is pretty easy. When you put then back on, takes a little adjustment since it is a ball and socket joint which takes with a donut which sometimes leaks if you don't tighten it just right.

To port the manifolds, you need to add weld more material on the underside of each exhaust port. That is where it is very thin wall casting and in order to open it up more you need more material so you don't punch a hole through it. All you have to do is use a die grinder (not a dremel spins too fast) with some grinding rolls. (Forgot the correct name for them right now.) All you need to do is clean up the first 2 inches of the port and leave the rest alone and just open it up to the gasket size. Actually most of the work you want to pay attention to is floor since it is pretty crappy and smoothing it out and you will notice a pretty big difference especially on a */C car. But that'* my advice. =)
99BonnevilleSE is offline   Reply With Quote
Old 03-06-2006, 04:39 PM   #5
Senior Member
Certified GM nut
Thread Starter
 
Join Date: May 2005
Location: Wickliffe, Ohio
Posts: 2,155
Thanks: 0
Thanked 0 Times in 0 Posts
McGrath is on a distinguished road
Default

Quote:
Originally Posted by BillBoost37
Ed...

I should have pics up of mine from Hulkspeed by the end of the week.
Quote:
Hulkspeed is the way to go for PEMS
Do they have some of core return I can do if I opted? I don't really have a 2nd car to drive while I wait for my manis to get ported if I chose to go this route.
McGrath is offline   Reply With Quote
Old 03-06-2006, 04:42 PM   #6
Senior Member
True Car Nut
 
Join Date: Oct 2005
Location: Central Florida
Posts: 7,030
Thanks: 0
Thanked 0 Times in 0 Posts
lash is on a distinguished road
Default

Quote:
Originally Posted by McGrath
Quote:
Originally Posted by BillBoost37
Ed...

I should have pics up of mine from Hulkspeed by the end of the week.
Quote:
Hulkspeed is the way to go for PEMS
Do they have some of core return I can do if I opted? I don't really have a 2nd car to drive while I wait for my manis to get ported if I chose to go this route.
IIRC, they do have a core return option.
lash is offline   Reply With Quote
Old 03-06-2006, 04:57 PM   #7
Senior Member
Certified GM nut
Thread Starter
 
Join Date: May 2005
Location: Wickliffe, Ohio
Posts: 2,155
Thanks: 0
Thanked 0 Times in 0 Posts
McGrath is on a distinguished road
Default

Awsome! This sounds like a good way to go for me till (if ever) I get some headers. Boosty will keep me updated on his.

I want it to warm up outside already so I can stand around and play under the hood and not lose feeling in my hands.
McGrath is offline   Reply With Quote
Old 03-06-2006, 05:01 PM   #8
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Ed...
Pat says Dbeast has his set..and they look great.. (You'd think with all the pics those two took...they might have snapped at least one of them )

They do have core return...however they might not have your manifolds in stock until you order them. Travis was mentioning getting more of the manis to stock for the bonnes.
BillBoost37 is offline   Reply With Quote
Old 03-06-2006, 09:33 PM   #9
Senior Member
Certified Car Nut
 
dbeast420's Avatar
 
Join Date: Aug 2004
Location: My reclining computer chair
Posts: 11,269
Thanks: 0
Thanked 0 Times in 0 Posts
dbeast420 is on a distinguished road
Default

Quote:
Originally Posted by BillBoost37
Ed...
Pat says Dbeast has his set..and they look great.. (You'd think with all the pics those two took...they might have snapped at least one of them )
.
Travis does really good work but the supply of Bonne maniflods is limited. He had to find a set before he could do mine. The name is now GT Ppwderworks.

Here'* some pics of mine. I got the Aluminum Ceramic Coated

Front
Name:  Manifolds003.jpg
Views: 0
Size:  20.4 KB

Rear
Name:  Manifolds004.jpg
Views: 0
Size:  21.0 KB

They don't do anything with the crossover pipe other than remove the heat shield.

Here'* the different PEMs he offers. Manifolds
dbeast420 is offline   Reply With Quote
Old 03-07-2006, 01:33 AM   #10
Senior Member
Certified GM nut
Thread Starter
 
Join Date: May 2005
Location: Wickliffe, Ohio
Posts: 2,155
Thanks: 0
Thanked 0 Times in 0 Posts
McGrath is on a distinguished road
Default

Wow those look purdy! Now what kind of gains would be had with pems? 5-10hp? ( not to mention a reduction in KR if you do have some. ) Dbeast can you post a few picks of those on your motor?


Ed
McGrath is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
General Cylinder Head Porting/ Intake Manifold Porting 101 Speedster400 Performance, Brainstorming & Tuning 6 11-07-2007 10:51 AM
Making turbo log manis 95naSTA Performance, Brainstorming & Tuning 6 07-17-2006 06:55 PM
PICS $100 -Series I exhaust manis ported and ceramic coated! OLBlueEyesBonne Performance, Brainstorming & Tuning 34 03-08-2006 07:39 PM
Porting Exhaust Manifolds. merlin Performance, Brainstorming & Tuning 2 07-08-2003 10:56 PM
Anyone tried porting the throttle body a little? brminder Performance, Brainstorming & Tuning 3 07-26-2002 06:49 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:42 AM.


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.