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Thread: so you're tired of premixing with your Weber IDA
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Brad
Rotorhead
Posts: 1672
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posted December 07, 2007 11:20 AM |
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repumax
Redlining
Posts: 427
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posted December 07, 2007 12:38 PM |
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Nice work Brad! Well, how is that weber? Have you fired it up yet?
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1974 Mazda Repu
1986 Yamaha RZ 500
1988 Yamaha YSR 50
1991 Suzuki RGV 250
1992 Yamaha TZR 250 SP
1996 Aprilia RS 250
2003 Ford F-450 6.0 Diesel
2004 Mazda RX8
2006 Yamaha Banshee
2014 18' Eclipse Toy Hauler
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Brad
Rotorhead
Posts: 1672
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posted December 07, 2007 02:48 PM |
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haven't fired it up yet
but rest assured it will be humming within 24 hours. need to get a return spring and fab a throttle bracket.
i'm also wanna install an air canister from stock 12a. the big round bluie. route cold air from behind headlight. might even use the hot air flapper as a choke for cold starts.
and also important, it'll be a lot quieter than an open air filter.
less attention when i floor it. stealth repu.
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-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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dryenko
1st Gear
Posts: 38
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posted December 16, 2007 04:21 AM |
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oil injection
You might keep an eye on your oil supply when you fire that beast up..
Careful examination will show oil is injected above the throttle plates, in the stock carb,IIRC, where there is a lot less vacumn..
BC
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Rotary_Pickup
Hauling
Posts: 117
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posted December 16, 2007 01:26 PM |
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Be careful and monitor the connection of the hose on the OMP. I used a similar hose to replace the factory ones on my 1975 REPU and when they got hot they would slide right off. If it can be done, I like the connection you have on the carb side. That connection isn't coming off.
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KansasCityREPU on RX-7Club.com
85 GSL
77 REPU (1/1/2004)
75 REPU (7/10/2004)
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Brad
Rotorhead
Posts: 1672
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posted December 17, 2007 01:19 PM |
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thanks guys. the crimped clamp connections are on there real good. the hose won't slide off. the clamp is above a barb so it won't come undone. i'm not a big fan of having the omp line under vacuum as it is difficult to seal air tight under vacuum. i've had to redo the manifold clamps twice, most recently with silicone and a very tight crimp on the clamps via channel locks.
several people on rx7club.com said just use those 2 ports for omp when i asked so i did. i'd rather have it in the carb lid somewhere but no easy way to do that w/o drilling the carb. wonder if i should just put it in the air canister lid right above the aux venturi and have it drop downward????
i've driven it around town with the weber. great carb, really knows how to move air and fuel. the omp lines do not get sucked dry of oil.
i'm also 90% done getting a 1st gen round blue air canister to mount on top of weber ida. just need to rivet it together and seal with silicone. it's pretty sharp, pics and writeup coming.
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-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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Rotorranch
Newbie
Rotary Power !!!!
Posts: 8
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posted March 10, 2008 09:15 PM |
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What Weber carb is that?
I think I have one on my GT-3 racecar with ports above the throttle plates, plugged with brass plugs.
Rotor
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Brad
Rotorhead
Posts: 1672
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posted March 11, 2008 11:37 PM |
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48 IDA
Above the throttle plates would be much better. I'd also like a vacuum port right above the plates for ported vacuum to the distributor for advance but just can't see an easy way to do that.
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