I dont think the holes are used on the dummy throttle body, I think I remember asking the same question.
Swapping the supercharger from the NA to the NB and not sure if I got all the parts back from Gary. I need a pic of the supercharger bracket. I have the correct exhaust bracket but the one that mounts the supercharger doesn't look like it bolts to that one. Could also use a pic of the dummy throttle body. The one I got from Gary does not have any place for the throttle body coolant hoses to mount to. I assume it's supposed to have fittings in the empty holes!
90 MX5 281k miles! - euro spec, Porsche Riviera Blue w/black hardtop, 97 motor swap, vintage Borbet rims, GC, FM shock hats/frame rails/rear sub-brace, AGX, sway bar, stb, Fidanza/ACT combo, EBC Yellows
92 COMMA SM - new paint coming soon...
I dont think the holes are used on the dummy throttle body, I think I remember asking the same question.
99 Miata Black
They kind of have to, otherwise the coolant from the bypass hoses will spray all over the place till the car looses all the coolant. Also there is a huge as threaded hole on the front of the dummy throttle body that I don't know what goes into and another threaded hole on the side that goes all the way through into the intake.
90 MX5 281k miles! - euro spec, Porsche Riviera Blue w/black hardtop, 97 motor swap, vintage Borbet rims, GC, FM shock hats/frame rails/rear sub-brace, AGX, sway bar, stb, Fidanza/ACT combo, EBC Yellows
92 COMMA SM - new paint coming soon...
Just loop the coolant lines together. The dummy TB doesn't need coolant flowing through it.
The huge threaded hole is for the IAC, I believe.
I don't have any pics of my mounting brackets nor can I get some tonight. But if you need them tomorrow I'll oblige. Granted, they're on the car so that type of photo will have to do :) Don't have any pics of the bracket solo.
'96 "R2 Limited" | On Minkara
'99 s/c - Sold | Club Roadster Calendar Car: August 2011 | Roadster Garage Roadster of the Week
90 MX5 281k miles! - euro spec, Porsche Riviera Blue w/black hardtop, 97 motor swap, vintage Borbet rims, GC, FM shock hats/frame rails/rear sub-brace, AGX, sway bar, stb, Fidanza/ACT combo, EBC Yellows
92 COMMA SM - new paint coming soon...
I would call Gary, but I didnt use the coolant hoses on the dummy on mine either.
99 Miata Black
IIRC, on early Moss/JR kits, the IAC mounted to the bottom of the dummy throttle body, and the coolant lines went through it. On the new Moss kits, the IAC mounted to the firewall, and I think there was some type of blanking plate involved. Is it possible you got a newer style dummy throttle body that is designed for the IAC on the firewall?
This sounds right to me. Just like mine.
Only there is no IAC valve. The way Gary did it, it's just a hose that goes from the intake track (after AFM and before S/C Throttle Body) and into the dummy TB with no valve.
I'm still not sure how I'm not losing boost this way. Seems like there should at least be some sort of 1-way valve in that line. But it runs great and idles well, so I'm not complaining.
'96 "R2 Limited" | On Minkara
'99 s/c - Sold | Club Roadster Calendar Car: August 2011 | Roadster Garage Roadster of the Week
Chris,
Just come over to the shop and look at an install, a picture is worth a 1000 words. I have a 99 M45 we just pulled for a MP62, but details of all your questions are sitting there waiting your presence.
Gary
Danger!!! This Dog Bites.
www.trackdogracing.com