turbo manifold fit on n/a head?

[enderjetta]

after seeing a bunch of turbo parts on e-bay
toying with the idea of puting a turbo on my 87 924s
looked at a turbo manifold looked like my manifold? mis labled?
would a turbo manifold fit on my stock head?

[MarkRobinson]

Yes, and I have one with a throttle body for sale.

[Techno Duck]

Yes it will bolt to the stock head, but you will be missing the front and rear supports on the engine block. These are bolt on parts however.

[enderjetta]

Thanks for the speedy help!
but i was thinking about the exhaust manifold,
I could use the stock manifold right? but the turbo one would make it so i could utilize some more stock parts and save on the custom work

[Techno Duck]

Exhaust will bolt up also, will only line up with the crossover on the turbo, the regular y-pipe won't.

[enderjetta]

ok thanks that seems a lil to easy trying to get a rough parts list together to get an idea how big of a project it will be, has anybody here done this?
have put turbos on other cars but they were 100% custom and cost alote.
figured if i used alote of stock parts it shouldnt cost as much, I know im not going to get big gains , but should be a fun project

[Porsche-O-Phile]

Some 951 guys use 944 heads b/c the exhaust ports can be machined - the ones on the 951 head cannot due to the ceramic liners.

[mistertate]

You should try putting that Turbo intake manifold and throttle on with a MAF replacing the barndoor and see what that does. I hear the 8v intake manifold is sort of a turd. If it made significant gains that would be a simple and cheaper (and IMO better) alternative to a turbo.

[Schumi]

One of my Porsche books has comments on the intake redesign from the 944 to 951. It wasn't so much for overall flow rate numbers as it was matching the flow rates of each individual cylinder. The back cylinders on the 944 manifold do not flow the same amount as the front, meaning slightly different fuel mixing characteristics for each cylinder. The turbo manifold fixed this. This book quoted the actual numbers I think too, but I don't have it here right now to check.

It would be an interesting swap. The other thing is, due to the angle that the turbo manifold puts the throttle body entrance at, I believe you could run an small, straight rubber booth with the J-boot vac connections on it straight into the AFM, and to a cone filter. This would offer a more straight-through approach from the filter through the throttle body and could improve some throttle response. Just a theory.

[enderjetta]

Since i first looked under the hood ive wanted to get rid of that barn door, very primitive and resting, cant find a afm at a resonable cost. other than buying the special one that plugs in and is sold as a performance part is there one that comes in a production car that could be wired up to work? there has to be one out there somewhere, kinda handy with electrical and dont want to pay big bucks for a name

[enderjetta]

Mark, how much for intake and throttle body

[MarkRobinson]

$75 + 20 shipping: includes throttle body: here's a pic or two.

[enderjetta]

looks like my throttle body is the same? would just need the manifold?

[mistertate]

The throttle bodies are not the same. The NA one has a different hole pattern to mount to the manifold, you'll have to use the Turbo one.

[enderjetta]

just checking don't need 3 the same, have the identical car to mine that i have and plan to use for fitting custom parts, no down time for my car. is the turbo one bigger? and does the tps plug in or do i need to modify the harness?

[ibtisam.jawad]

Originally Posted by Techno Duck

Exhaust will bolt up also, will only line up with the crossover on the turbo, the regular y-pipe won't.

Please explain. So, if I have the two inside AND the two outside manifolds from a turbo they will bolt right up to my early 944 NA?

[krystar]

holy thread revival.

turbo exhaust manifold will bolt to NA block. but it won't bolt to your exhaust pipe.