944Hybrids: 924/944/968 and 928 V8 Conversions
Would you like to react to this message? Create an account in a few clicks or log in to continue.
HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 2:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

Comments: 0

Latest topics
» FS: 1985.5 Porsche 944 in Michigan
Headers, headers, HEADERS! - Page 5 EmptyToday at 3:30 pm by tspangle88

» Totalled 1985.5 Porsche 944
Headers, headers, HEADERS! - Page 5 EmptyWed Jul 01, 2020 5:09 pm by superman22x

» Various 944 LS Swap Parts For Sale!
Headers, headers, HEADERS! - Page 5 EmptyMon Jun 29, 2020 6:29 pm by Worryless

» ls2 automatic, what flywheel should I buy
Headers, headers, HEADERS! - Page 5 EmptyMon Jun 29, 2020 1:28 pm by mdan1

» 944 Manual Brakes
Headers, headers, HEADERS! - Page 5 EmptyMon Jun 29, 2020 7:05 am by v2rocket

» Air Conditioning A/C for LS3 SOLVED and COLD
Headers, headers, HEADERS! - Page 5 EmptySun Jun 28, 2020 2:39 pm by Worryless

» Cayenne Caliper Adapters and Rotor Centering Rings
Headers, headers, HEADERS! - Page 5 EmptySat Jun 27, 2020 8:07 am by razrbak_944

» LS-460 Big Brake kit
Headers, headers, HEADERS! - Page 5 EmptySat Jun 27, 2020 8:05 am by razrbak_944

» Hydroboost to 944 master cylinder adapter wanted
Headers, headers, HEADERS! - Page 5 EmptyWed Jun 24, 2020 8:08 pm by kelleysj

» 5.3L Trailblazer ECM & parts
Headers, headers, HEADERS! - Page 5 EmptyWed Jun 24, 2020 1:58 pm by 944Mike

July 2020
MonTueWedThuFriSatSun
  12345
6789101112
13141516171819
20212223242526
2728293031  

Calendar Calendar

Log in

I forgot my password

Headers, headers, HEADERS!

Page 5 of 8 Previous  1, 2, 3, 4, 5, 6, 7, 8  Next

Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Tetzuoe on Tue Jul 07, 2009 11:00 am

ga! ok, thats easy then, tyty
looks like you can cut the bends from a J tube and have a bit left over to size/grind down! even saves you that weld on the 95 degree bend! win.
Tetzuoe
Tetzuoe

Posts : 178
Join date : 2009-06-12
Age : 36
Location : Falls Church, VA

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  dallas on Sat Jul 11, 2009 1:07 pm

JJ, you are awsome! NNNNNice job on the headers. So I take it the pass side fits out of the box? All I have to say is you guys are like Henry ford in a way, he put an affordable car in the hands of a lot of people. And an affordable kit is being built for the masses! Great job guys.

dallas

Posts : 69
Join date : 2009-07-10
Location : stratford ct.

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  gt1scca on Sat Jul 11, 2009 8:39 pm

dallas wrote:...And an affordable kit is being built for the masses! Great job guys.
They [RH] want this forum down because of it. [Recruiting people for a conference call] - they just don't know what they're stirrin' with that stick...

It ain't happenin' boys...just ain't happenin'!

Thanks again, Johnny Johnny!

gt1scca

Posts : 795
Join date : 2009-06-08
Age : 51
Location : Belton, SC

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Dawgz83948 on Sat Jul 11, 2009 9:13 pm

gt1scca wrote:
dallas wrote:...And an affordable kit is being built for the masses! Great job guys.
They [RH] want this forum down because of it. [Recruiting people for a conference call] - they just don't know what they're stirrin' with that stick...

It ain't happenin' boys...just ain't happenin'!

Thanks again, Johnny Johnny!

Are they really up to that again. Boy they do not learn.....
Dawgz83948
Dawgz83948

Posts : 603
Join date : 2009-06-08
Location : Ca.

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  gt1scca on Sat Jul 11, 2009 9:42 pm

Yup. they're throwing up out of context quotes from what they deleted also...

Yea...I'll talk to them...
I told them to make sure they're sitting down when they call me. Razz

Idiots.

[PORH]

gt1scca

Posts : 795
Join date : 2009-06-08
Age : 51
Location : Belton, SC

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Dawgz83948 on Sat Jul 11, 2009 10:38 pm

Someone needs to sue them for harrassment if they keep it up.
Dawgz83948
Dawgz83948

Posts : 603
Join date : 2009-06-08
Location : Ca.

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Sun Jul 12, 2009 5:09 am

Just a quick update.

The prototype header is out for final welding, and I will be shopping around next week for a shop to do the custom bending of the long primary tube. I've got 4 or 5 shops lined up, so it will be interesting to see how competitive they are in their pricing.

JJ

Johnny Johnny

Posts : 164
Join date : 2009-06-09
Age : 49
Location : Oakville, Ontario Canada

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Tetzuoe on Mon Jul 13, 2009 6:27 am

excellent, how difficult is it to grind the tubes out of the flange? that part is a bit of a concern as I tend to screw things up pretty badly on the first attempt Laughing
Tetzuoe
Tetzuoe

Posts : 178
Join date : 2009-06-12
Age : 36
Location : Falls Church, VA

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Dawgz83948 on Mon Jul 13, 2009 8:02 am

Tetzuoe wrote:I tend to screw things up pretty badly on the first attempt Laughing

Join the club..... It is fairly exclusive.
Dawgz83948
Dawgz83948

Posts : 603
Join date : 2009-06-08
Location : Ca.

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Tetzuoe on Mon Jul 13, 2009 8:56 am

pirat
this reminds me, I should post up pics of my welding cart, Its been through some upgrades.
I should be getting aluminum welding stuff soon, going to give that a shot for the valve cover as well as a custom brake reservoir. /off topic
Tetzuoe
Tetzuoe

Posts : 178
Join date : 2009-06-12
Age : 36
Location : Falls Church, VA

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Mon Jul 13, 2009 2:29 pm

Actually, it wasn't too bad. I don't have an air die grinder, which would probably make it easier. First, I used my angle grinder to grind down the flange mating surface so it was flush (the surface is raised at each port opening). I then used a 1/4" grinding bit in my high speed drill to grind down the inside welds. When it looks like you are coming close to the tube, give the flange a few good whacks with a hammer - you should see a circular hairline crack appear where the tube ends. Wherever it doesn't crack, grind down a bit more. You'll be able to tell when you've ground down enough of the weld material, as the tube will separate from the flange. Once all four ports are done, the flange will slide off. Hooker makes it a little easier for us, as there are no tack welds on the outside of the flange to deal with.

When the tubes are re-welded to the flange, this part can be built up with weld metal, then machined flat.

Johnny Johnny

Posts : 164
Join date : 2009-06-09
Age : 49
Location : Oakville, Ontario Canada

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Tetzuoe on Mon Jul 13, 2009 7:14 pm

hmmm...
hammer, check
air dye grinder... Suspect
high speed drill.. Neutral
dremel, CHECK!

this aught to be interesting.
Tetzuoe
Tetzuoe

Posts : 178
Join date : 2009-06-12
Age : 36
Location : Falls Church, VA

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  944-LT1 on Wed Jul 15, 2009 5:53 am

Paul thought that my LT headers may provide some help here for the LS fellas.

heres the long tube headers I run on an LT engine...

[You must be registered and logged in to see this image.]

And heres that same header run through MSpaint (very crudely) for an LS engine....



[You must be registered and logged in to see this image.]

The number 3 and 5 primary tubes are just moved over and not exact. the number 1 and 7 havent moved.
Anyway, just another way.....these are RH headers version 2.

_________________
[You must be registered and logged in to see this image.]

[You must be registered and logged in to see this link.]
944-LT1
944-LT1
Moderator
Moderator

Posts : 1263
Join date : 2009-06-09
Age : 98
Location : NOTRE DAME

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Wed Jul 15, 2009 7:50 am

I would imagine you could extend the Hooker shorties to make them mid-length headers, just by cutting off the collector and welding in extensions. The problem I still see with the headers in the previous post is that you need to disconnect the steering shaft whenever you want to remove the headers or lift the motor. You might not be doing that often, so maybe it's not a big issue, but then again, maybe you would.

Johnny Johnny

Posts : 164
Join date : 2009-06-09
Age : 49
Location : Oakville, Ontario Canada

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  944-LT1 on Wed Jul 15, 2009 8:11 am

Exactly. The shaft goes right through them.

_________________
[You must be registered and logged in to see this image.]

[You must be registered and logged in to see this link.]
944-LT1
944-LT1
Moderator
Moderator

Posts : 1263
Join date : 2009-06-09
Age : 98
Location : NOTRE DAME

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Tue Jul 21, 2009 2:13 pm

Argh! I received my second set of Hooker 2312's from Performance Parts and they packed 2 driver-side headers in the box! Waited a month for these to show up!!!

Anyways, I'm going over to pick up the modified driver-side header and long primary tube from my local welder tomorrow. I'll bring the tube to a couple of custom bending shops to see what the cost will be to bend the whole thing up as one piece.

Johnny Johnny

Posts : 164
Join date : 2009-06-09
Age : 49
Location : Oakville, Ontario Canada

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Wait! What about approaching...

Post  968gene on Tue Jul 21, 2009 3:48 pm

Is there enough interest in a "group buy" to get a custom header manufacturer to do a dozen or so sets? If so, what's our price point? If the same header could fit all LS applications, I'm interested. We might be able to get an equal-length set built as well.
968gene
968gene

Posts : 256
Join date : 2009-07-02

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Tue Jul 21, 2009 7:24 pm

I'm going to find out this week what the cost is to do 1, 5, and 10 copies of the Hooker modified shorties. If I was going to work on an alternative set, I think I'd do 180* headers - I've already got some designs down on napkins for it.

Johnny Johnny

Posts : 164
Join date : 2009-06-09
Age : 49
Location : Oakville, Ontario Canada

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Headers

Post  968gene on Tue Jul 21, 2009 8:52 pm

180 degree? please explain.
968gene
968gene

Posts : 256
Join date : 2009-07-02

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Tue Jul 21, 2009 9:17 pm

They're called 180 headers because the primary tubes are paired so the cylinders fire next to each other every 180ยบ. It's like having one collector on the entire engine so you get improved scavenging. The big advantage is that two cylinders from each side of the engine go into a collector, as opposed to all four cylinders on one side of an engine. This in effect lets the exhaust from one cylinder pull the air out of the next cylinder during the exhaust stroke. The flow rate increases and is smoother than standard headers.

They improve mid and top end, and they make a Chevy v8 sound more like a European car. A good, though brief, write up here: [You must be registered and logged in to see this link.]

And THIS is what it sounds like cyclops [You must be registered and logged in to see this link.]

Johnny Johnny

Posts : 164
Join date : 2009-06-09
Age : 49
Location : Oakville, Ontario Canada

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  m73m95 on Tue Jul 21, 2009 10:13 pm

[You must be registered and logged in to see this image.]

No way those would fit under a 944..... lol. Daddy like though Wink

m73m95

Posts : 77
Join date : 2009-06-08
Age : 39

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Tetzuoe on Wed Jul 22, 2009 10:43 am

mad props for using the cyclops smiley in context!!!
Tetzuoe
Tetzuoe

Posts : 178
Join date : 2009-06-12
Age : 36
Location : Falls Church, VA

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Wed Jul 22, 2009 10:44 am

I know - I finally found a use for it!

Johnny Johnny

Posts : 164
Join date : 2009-06-09
Age : 49
Location : Oakville, Ontario Canada

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  944-LT1 on Wed Jul 22, 2009 12:36 pm

Wow. that is a sweet sound! Very Happy

So really, only 4,6 and 3,5 actually cross over. Thats doable I bet!

I made this for the non 3D thinking folks. Laughing

[You must be registered and logged in to see this image.]

_________________
[You must be registered and logged in to see this image.]

[You must be registered and logged in to see this link.]
944-LT1
944-LT1
Moderator
Moderator

Posts : 1263
Join date : 2009-06-09
Age : 98
Location : NOTRE DAME

Back to top Go down

Headers, headers, HEADERS! - Page 5 Empty Re: Headers, headers, HEADERS!

Post  944-LT1 on Wed Jul 22, 2009 12:44 pm

On second thought...This would probably not be good for computer controlled cars like with the LT and LS engines. O2 sensors???

_________________
[You must be registered and logged in to see this image.]

[You must be registered and logged in to see this link.]
944-LT1
944-LT1
Moderator
Moderator

Posts : 1263
Join date : 2009-06-09
Age : 98
Location : NOTRE DAME

Back to top Go down

Page 5 of 8 Previous  1, 2, 3, 4, 5, 6, 7, 8  Next

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum