Honda intake manifold
#128
YMMV
#129
WOW, thats rigged, but it seems like the same concept alot of the ITB guys use when adapting GSXR throttle bodies to the miata.
Hmm, us "great minds" think alike! I've been wondering if cutting off the Miata flange with about 2" runner stubs is a possibility. Open up the runner stubs to match the ID of the Honda manifold runners and then cut the Honda flange and about 2" of each runner off. Use 4 silicon hose couplers & 8 SS T-bolt clamps to physically join the Miata flange to the Honda manifold along with modifying/adapting the stock Miata intake manifold support to the Honda manifold so that the silicon hose connector tubes aren't holding any weight. Ghetto, but very functional. FWIW, Lycoming aircraft engines have logged millions of hours with these funking rubber/silicon connector hose intakes.
YMMV
YMMV
#130
Almost all motorcycles use a similar setup...but of course the couplings aren't supporting any weight.
Vibrations would be my main concern, but if you could properly support the plenum I'm sure it could work.
I'm going to try to get mine properly welded. It hits the band saw early saturday morning (when no one is on the shop floor yet), and will dress it over the weekend and check out these local aluminum welders in the Woodlands to see what they'll charge.
The only problem with couplers I see is that the honda runners are not straight.
Vibrations would be my main concern, but if you could properly support the plenum I'm sure it could work.
I'm going to try to get mine properly welded. It hits the band saw early saturday morning (when no one is on the shop floor yet), and will dress it over the weekend and check out these local aluminum welders in the Woodlands to see what they'll charge.
The only problem with couplers I see is that the honda runners are not straight.
#134
Elite Member
iTrader: (15)
Join Date: Jan 2007
Location: Murfreesboro,TN
Posts: 2,041
Total Cats: 265
Find someone that will burn them on a laser or cut them out on a water jet. Probably much cheaper than a machinist (they like their work too much, haha). If we had any short run capacity at work I'd look into running them on our laser (we can run up to 1" tooling steel). The finish on a laser isn't going to be awesome, but with a little clean up, it'd be good to go. Water jet (I wish we had one at work) could have a great finish right off the bed.
#135
Senior Member
iTrader: (2)
Join Date: May 2005
Location: Edmonton Ab, Canada
Posts: 1,202
Total Cats: 21
Find someone that will burn them on a laser or cut them out on a water jet. Probably much cheaper than a machinist (they like their work too much, haha). If we had any short run capacity at work I'd look into running them on our laser (we can run up to 1" tooling steel). The finish on a laser isn't going to be awesome, but with a little clean up, it'd be good to go. Water jet (I wish we had one at work) could have a great finish right off the bed.
#139
Elite Member
iTrader: (15)
Join Date: Jan 2007
Location: Murfreesboro,TN
Posts: 2,041
Total Cats: 265
Another plus I thought of with the water jetting is that it'll be as true as the material itself. The laser may deform the material some as it is cutting. I would probably still be wise to plane the flange once it is welded on either way.
#140
Senior Member
iTrader: (2)
Join Date: May 2005
Location: Edmonton Ab, Canada
Posts: 1,202
Total Cats: 21
You 1.6 guys will have to cut your oem intakes far enough back to include that jazz like Braineack did whefn he built his manifold.