996 turbo headers

[therevday]

Hello all, I was just sat here wondering wether 996 headers will fit on a 964 engine. Does anyone know?????

[Groovie Ghoulie]

Google turned this up in like 4 seconds.....


Modified 996 headers for 964?

996 exhaust port spacing distance...anyone know?

[911TT33]

Why not run 993tt heat exchangers with flipped flanges... Then you can retain heat.

[therevday]

Thankyou for the info.I did try googling it but was unsucessfull. It goes to show what a fantastic pool of knowledge this forum is! As regards to heat I would think I have a friend who is a fabricator welder and I am sure we can make something up to fit over the tubes to create some form of heatexchanger.

[spence88mph]

We've been waiting for a friend to do that too .

[911nut]

Originally Posted by 911TT33

Why not run 993tt heat exchangers with flipped flanges... Then you can retain heat.

This also makes for a killer header set-up. I have one fabricated by M&K with dual wastegates. It's a 60 lb weight reduction (including cat and 964 suitcase muffler) and boost is in nice and early.

[911TT33]

Originally Posted by 911nut

This also makes for a killer header set-up. I have one fabricated by M&K with dual wastegates. It's a 60 lb weight reduction (including cat and 964 suitcase muffler) and boost is in nice and early.

So you are using external gates? Got any pics of this setup?

I agree, the 993tt HE's are a great solution, however, positioning the right turbo on the side of the motor poses some challenges with oil tank clearance.

How did you get around that?

[911nut]

Originally Posted by 911TT33

So you are using external gates? Got any pics of this setup?

I agree, the 993tt HE's are a great solution, however, positioning the right turbo on the side of the motor poses some challenges with oil tank clearance.

How did you get around that?

Don't have a picture. I'll take one this week and post it.
I ditched the stock oil tank and used a GSF tank instead. The oil lines needed to be backdated also.

[911TT33]

Originally Posted by 911nut

I ditched the stock oil tank and used a GSF tank instead.

Interesting. Never knew GSF made an aftermarket tank. I'd be interested in seeing pics

[911nut]

As requested:

[BoxxerSix]

If you need pictures of a 996TT turbo setup let me know. I have one of these cars up in the air right now sans rear bumper as I just installed the engine I rebuilt for it and haven't finished buttoning everything up yet.

[therevday]

I think pictures are always a good idea!! It lets us lesser mortals see magic

[911TT33]

I'm always impressed by seeing later model components fitted to our earlier cars... seeing a factory 993TT or 996TT engine bay doesn't excite me much. I like seeing earlier hybrid cars which use late model components

[RarlyL8]

Are you talking N/A or twin turbo headers?
The early 3.6L engine used the same bolt pattern as typical air cooled 911. Later air cooled engines had the flanges flipped. Water cooled engines are a completely different animal.
What are you trying to do?

[DSPTurtle]

Originally Posted by RarlyL8

What are you trying to do?

Totally trolling...

[911TT33]

Originally Posted by RarlyL8

What are you trying to do?

I *think* he's looking at fitting 996TT headers on a 964 motor?

Problem is, 996tt headers have oval ports/flanges, and 964 heads have round ports. Will need to modify the header's flanges and primaries to match the 964 heads.

I guess since the 996tt headers are very cheap anyway, it could be a cost effective solution for a TT conversion compared to sourcing 993TT heat exchangers which are very rare, and expensive!

Wonder how much it would cost to mod the 996TT headers to suit earlier 964/911 heads?

[copbait73]

Originally Posted by 911nut

As requested:

Maybe to help this discussion, aren't these 993 N.A. exchangers (not the rare 993TT) as the base for your system?

[RarlyL8]

Paul has 993 N/A exchangers on his 965 single turbo. The original post asks if 996 headers will fit on a 964, while the title line just says 996 turbo headers. All very confusing.

[copbait73]

Originally Posted by RarlyL8

Paul has 993 N/A exchangers on his 965 single turbo. The original post asks if 996 headers will fit on a 964, while the title line just says 996 turbo headers. All very confusing.

Yes, that's why I offered the clarafication to Paul's posting.

[therevday]

hello Brian, yes my question was originally will 996 turbo headers fit a 964. It seems with mods to the flanges they will. (ihope so as i am picking a pair up on Saturday that I have agreed to buy) It appears that there is a shortage of 993 turbo headers on the used market. I am still fighting with the insurance company over the value of my burnt out 930,so I am looking at low cost options for turboing my 964.