NB8A Inlet Manifold Height

Discussion regarding putting a non MX-5 engine in your MX-5, Exocet, Locost, FM Westfield and other MX-5 based kit cars.

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GR124
Fast Driver
Posts: 283
Joined: Tue Sep 13, 2016 4:00 pm
Vehicle: MX5 Locost
Location: Newcastle

Re: NB8A Inlet Manifold Height

Postby GR124 » Mon Jan 23, 2017 3:10 pm

When I get a minute I'll put up some photos. No problem.

Thanks for the throttle body info.

manga_blue
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Vehicle: NA8
Location: Moruya, NSW

Re: NB8A Inlet Manifold Height

Postby manga_blue » Tue Jan 24, 2017 11:55 am

I just put a straight edge across the top of the cam covers between #2 and #3 cylinders on my car: NA8 manifold on NB8A head. The top of the NA8 manifold's plenum chamber sits 7mm below the tops of the cam covers. The projections over the plenum chamber to hold the brake vacuum and PCV valve pipes sit flush with the tops of the cam covers. The highest point of the throttle body assembly is 11mm below the top of the cam covers.
’95 NA8

GR124
Fast Driver
Posts: 283
Joined: Tue Sep 13, 2016 4:00 pm
Vehicle: MX5 Locost
Location: Newcastle

Re: NB8A Inlet Manifold Height

Postby GR124 » Tue Jan 24, 2017 1:04 pm

manga_blue wrote:I just put a straight edge across the top of the cam covers between #2 and #3 cylinders on my car: NA8 manifold on NB8A head. The top of the NA8 manifold's plenum chamber sits 7mm below the tops of the cam covers. The projections over the plenum chamber to hold the brake vacuum and PCV valve pipes sit flush with the tops of the cam covers. The highest point of the throttle body assembly is 11mm below the top of the cam covers.


Thanks once again for sharing this info this is just what I'm chasing.
I'm now am on the hunt for a NA8 manifold

Anyone got one lying around? :D

madjak
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Re: NB8A Inlet Manifold Height

Postby madjak » Tue Jan 24, 2017 10:19 pm

I have a couple but I'm over in Perth. Pm me if you can't find one local.
NA8: N/A 200whp | Haltech | Skunk2 Intake | S90 TB | RCP | 5 speed c/r dogbox | 4.78 diff | AST Shocks
Barbs L: 64.12 | S: 58.62 | Collie: 49.72

GR124
Fast Driver
Posts: 283
Joined: Tue Sep 13, 2016 4:00 pm
Vehicle: MX5 Locost
Location: Newcastle

Re: NB8A Inlet Manifold Height

Postby GR124 » Tue Jan 24, 2017 11:57 pm

Cheers Madjak, I'll keep looking locally for now.
May end up taking you up on your offer, we'll see how things pan out.


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