HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 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 …

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Headers, headers, HEADERS!

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Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Tue Sep 15, 2009 7:44 am

+1

I won't be taking it that far until I start on my 180degree exhaust. Which first requires a dry sump system. But I want to get the ITB's done before that...... Suspect

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Re: Headers, headers, HEADERS!

Post  Tetzuoe on Tue Sep 15, 2009 8:12 am

yeah at not at least until we can afford these:
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mmm... if only....
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Re: Headers, headers, HEADERS!

Post  endrnet on Sun Sep 27, 2009 4:00 pm

It was mentioned in another thread that there is an iron manifold that RH has used for cali cars to meet emissions standards there -- with some "small" modification. Anyone know if this is true or what part that might be?
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Re: Headers, headers, HEADERS!

Post  endrnet on Mon Oct 12, 2009 9:10 pm

I just got my hooker 2312s from jegs. The darn flange on the drivers side is backwards. Jegs wants to check their stock to see if they're all wrong or if it's just the ones they sent me.

Sigh. Suspect

I guess I could mount it upside down and blow the exhaust onto the windshield... Twisted Evil
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Re: Headers, headers, HEADERS!

Post  Bluemach1 on Sat Nov 07, 2009 11:14 am

I saw these. What do you think?
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Doug Thorly Headers P/N THY-336-C

Looks close?

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Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Sat Nov 07, 2009 2:01 pm

Bluemach1 wrote:I saw these. What do you think?
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Doug Thorly Headers P/N THY-336-C

Looks close?

Nope - the second primary from the front comes right down where the steering shaft crosses. They all need to come down near the back of the motor, or split to allow the shaft to pass through them.

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Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Sat Nov 07, 2009 2:02 pm

endrnet wrote:I just got my hooker 2312s from jegs. The darn flange on the drivers side is backwards. Jegs wants to check their stock to see if they're all wrong or if it's just the ones they sent me.

Sigh. Suspect

I guess I could mount it upside down and blow the exhaust onto the windshield... Twisted Evil

One of the sets I got from Hooker had 2 driver's side headers in the box! Funny thing is, they eventually sent me a new pair, and never asked for the originals back Twisted Evil

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Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Fri Nov 20, 2009 12:26 pm

OK....(big breath)....

I know I haven't posted for a while on this topic, but I've been a-playin', and I've got something very interesting in the works. Definitely not for the faint-of-heart, and requires a certain Hot-Rodding approach to the conversion. If you need to ask why I'm doing this, well....don't Neutral

Here are some pictures of a mockup I've been using as part of the R&D. Can anyone see where I'm going with this???

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*hints* - I've mentioned it before on this thread, the colours of the primaries are significant, and the letter written on the "block" is important. Also, this will help:

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Twisted Evil Twisted Evil Twisted Evil Twisted Evil

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Summit

Post  xschop on Sun Nov 29, 2009 10:30 am

Will Summit Split a header set?
The Driver's side would be a breeze to move that #1 Primary without having to reweld the flange.....
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Re: Headers, headers, HEADERS!

Post  Porch on Sun Nov 29, 2009 10:50 am

@Johnny Johnny: The crossover header design has been done before. That's actually how a lot of mid-engine cars (GT40, Ferrari, etc.) do their exhaust because the packaging is a lot simpler. I'm sure it makes a few more horsepower in the top RPM ranges (provided you've done all the math correctly).

I say go for it! But i also think if you spent the same amount of time porting your cylinder heads, you'd see a significantly larger return on your time investment Smile ...or for that matter, plumbing a turbo into the LS motor cherry
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Re: Headers, headers, HEADERS!

Post  endrnet on Sun Nov 29, 2009 11:06 am

xschop wrote:Will Summit Split a header set?
The Driver's side would be a breeze to move that #1 Primary without having to reweld the flange.....
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Looks like bolt-up compatibility to silverado. Collectors might be too wide / angled too far out. They were on my L33 headers, overall width was about 3" too wide for the frame rails if my memory serves..
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Re: Headers, headers, HEADERS!

Post  endrnet on Fri Dec 11, 2009 10:55 pm

The hooker 2312's are not fitting in my car. I'm beginning to wonder if my rack is OE or if the ujoint angle is different.

Anyway, I have the headers removed from flange, and the long tube is still off. Test fitting the bare tubes of the other 3 primaries results in the entire thing being a full 3/4" further back (hits the column, no more forward movement possible. At least half the exhaust port isn't covered when it hits the column.



confused
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D.Q.

Post  xschop on Sat Dec 12, 2009 3:07 am

Hate to ask a dumb question, but did you cut the correct side. They are stamped on the block flange face, at least mine was.
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Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Sat Dec 12, 2009 7:40 am

Ya, that kind of sounds like you're trying to use the passenger side one on the drivers side. They look similar, but they're a mirror set, with the exhaust-side flange being offset slightly.

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Re: Headers, headers, HEADERS!

Post  endrnet on Sat Dec 12, 2009 10:54 am

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Re: Headers, headers, HEADERS!

Post  Johnny Johnny on Sat Dec 12, 2009 2:08 pm

OK, that's the right one. And this is where you're getting interference?

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Re: Headers, headers, HEADERS!

Post  endrnet on Sat Dec 12, 2009 2:18 pm

Yep, I started wondering if only one was a problem, but even if i cut one off the other would hit too.
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Re: Headers, headers, HEADERS!

Post  lastson03 on Tue Jan 12, 2010 6:26 pm

Has anyone seen a set of sbFord headers that look like they may work if they would bolt to the LSx engine? There are guys that are buying Ford headers for mustang swaps and changing the flange. The Fox body sbFord Headers can be found CHEAP!

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Hmmm....

Post  xschop on Tue Jan 12, 2010 6:52 pm

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Re: Headers, headers, HEADERS!

Post  Bluemach1 on Mon Feb 22, 2010 4:07 pm

What do you think about these:
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Think they would work?

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Re: Headers, headers, HEADERS!

Post  Bluemach1 on Mon Feb 22, 2010 4:17 pm

Never mind.

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Resurrection

Post  240Z2NV on Fri Jun 24, 2016 2:52 pm

Hello folks. It's been TEN years since these fine Trailblazers undertook this task.  I'm wondering what developments have been made for 944T~951 / LS Swaps in the last decade ?  I am trying diligently to assemble components for a swap that will get me past the CARB Referee [CA headaches].  I have read about LS3 E-Rod pkg.  Essentially, I am trying to assemble that piece-meal, since I already have an LS3 Short Block IN CRATE.

So, over the last decade, has ANYONE come up with an alternative to RH headers, that will [appear] more OE, and fit with minimal modification [steering shaft changes, mount tweaks, etc.] ?  OE manifolds are my first goal [IF Possible].  Second, I need to fit FOUR Cats, as close to OE as possible.  Planned on buying Take-Off LS3 Camaro Cats, and fiddling with them.  I can weld, and have done basic fabrication; but, I no longer have a three car Man Cave [lost home in '07 Economic Meltdown], so my space to 'fabricate' is .... precarious due to Home Owners Assn. Bitches.

Any of these [appear] like they might fit with LITTLE modification ?  The LS3 Camaro, and LT1 C7 Vette OE manifolds have very different outlets.  Same is the case for Escalade.  Still optimistic that somehow an OE manifold can work.

JBA Shorties [SUPPOSEDLY are CARB-Legal] ~ [You must be registered and logged in to see this link.]

Patriot Shorties [Also SUPPOSEDLY CARB-Legal] ~  https://www.amazon.com/gp/product/B00KMOS7VS/ref=ox_sc_act_title_4?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

I'm new here, so please Calmly respond if I have misstepped.  I have been an Active member on numerous other Forums, and it seems that there is always someone who is trolling just for the purposes of Flaming.  I'm hopeful that being Porsche enthusiasts as well, there is a bit more [Sophistication ?]  here.  As well, I did read Stickies, and searched other posts.

This post seemed the most 'comprehensive'; however, as is often the case on Forums, it was never brought to full conclusion on the Thread.  Thanks !

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Re: Headers, headers, HEADERS!

Post  docwyte on Sat Jun 25, 2016 9:25 am

This is easy. NONE of the headers are CARB compliant and you won't pass emissions in California with any of them. The market for these swaps is too small for any of the companies to go through the pain and expense of getting their headers a CARB EO #.

I believe the member here who did get his car past the BAR referee sent you a link to his thread. You need to do what he did if you want to get your car past BAR and be legal in California.

There's no other way unfortunately.

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Re: Headers, headers, HEADERS!

Post  240Z2NV on Sat Jun 25, 2016 11:43 am

Despite the fact that there's a CARB # on their Listing .....
?

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Re: Headers, headers, HEADERS!

Post  docwyte on Sat Jun 25, 2016 4:51 pm

Those aren't for the 944 swap. None of the 944 swap headers are CARB compliant.

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