What inlet manifold - GTX/GTR engine?

Discussion regarding Turbocharged and supercharged MX-5s

Moderators: timk, Stu, zombie, The American, Lokiel, -alex, StanTheMan, greenMachine, ManiacLachy, Daffy, Sean

User avatar
Eeyore
Driver
Posts: 88
Joined: Tue Apr 09, 2013 8:26 pm
Vehicle: Clubman
Location: Ipswich, QLD

What inlet manifold - GTX/GTR engine?

Postby Eeyore » Fri Aug 12, 2016 11:02 am

When doing a GTX/GTR Familia engine conversion can you use the NA inlet manifold? I seem to recall the heads being similar. I have seen people cut and modify the FWD Familia manifolds but this seems less that ideal.
Kurt
1971 1300 Estate Deluxe
1973 1300 Wagon
1979 RX7

madjak
Racing Driver
Posts: 1117
Joined: Tue Dec 31, 2013 12:11 pm
Vehicle: NA6

Re: What inlet manifold - GTX/GTR engine?

Postby madjak » Fri Aug 12, 2016 3:29 pm

If it's the BP-05 head which I think it is then yes the NA8 Intake will bolt right on.
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

project.r.racing
Speed Racer
Posts: 3722
Joined: Sun Jan 18, 2009 10:16 pm
Vehicle: Non MX-5
Location: Glasshouse Mountains, QLD

Re: What inlet manifold - GTX/GTR engine?

Postby project.r.racing » Sat Aug 13, 2016 7:00 am

NA8 will bolt straight on. The only different between a BP-05 and BP-26 head is some small bumps in the intake ports.

MrsB
Fast Driver
Posts: 299
Joined: Sun Jul 12, 2009 9:50 pm
Vehicle: NB SP

Re: What inlet manifold - GTX/GTR engine?

Postby MrsB » Wed Sep 14, 2016 10:44 pm

Use the nb8b/c manifold flows the best rather than the na8/nb8a

project.r.racing
Speed Racer
Posts: 3722
Joined: Sun Jan 18, 2009 10:16 pm
Vehicle: Non MX-5
Location: Glasshouse Mountains, QLD

Re: What inlet manifold - GTX/GTR engine?

Postby project.r.racing » Sat Sep 17, 2016 4:11 pm

NB manifolds wont work as the flanges on the manifold are different.

cookie
Fast Driver
Posts: 471
Joined: Thu Dec 19, 2013 10:36 pm
Vehicle: NA6

Re: What inlet manifold - GTX/GTR engine?

Postby cookie » Thu Sep 29, 2016 11:41 pm

Intake is easily available. I found more expense in the oil pickup/pan. Not relevant to this question but something I went through. Also need to block off/ weld the heater core pipe thingo near the thermostat housing. I squashed and brazed mine. I have tried Un successfully to pull it out.

Sent from my SM-G920I using Tapatalk

User avatar
Eeyore
Driver
Posts: 88
Joined: Tue Apr 09, 2013 8:26 pm
Vehicle: Clubman
Location: Ipswich, QLD

Re: What inlet manifold - GTX/GTR engine?

Postby Eeyore » Sat Dec 10, 2016 8:52 am

What difficulties did you come across? Can't I just use an NA sump and pickup when doing the swap?
Kurt
1971 1300 Estate Deluxe
1973 1300 Wagon
1979 RX7


Return to “MX5 Forced induction (Turbo/Supercharger)”

Who is online

Users browsing this forum: No registered users and 114 guests