My '76 Rx-4 hardtop build.

GySgtFrank · 06-23-2015, 10:13 PM

looking very nice.

Buggy · 09-21-2015, 06:51 AM

I've been busy all summer, but the car is together and running well! Loving the twin 36 dcd carbs on this engine. They got rid of a lot of the herky jerky low end drivability issues. Much smoother, more low end torque, and scream with the secondaries opened lol.

13bt · 03-29-2016, 12:33 PM

hey Buggy hows the 4 running? love the build!

Buggy · 04-22-2016, 07:05 PM

Quote:

Originally Posted by 13bt

hey Buggy hows the 4 running? love the build!

Thanks! Funny you ask, I was just about to post about that. The 4 is out of storage for the summer, and due to a cancellation at work it went straight on the dyno. Started at a baseline of 182 rwhp and with some jet changes and other minor tweaks this was the end result. I'm pretty pleased, I hit my goal with this engine setup. I'll take some new pictures to post once it has a good wash and detail for the season.

rx4dyno2016.jpg

Buggy · 09-07-2016, 01:16 PM

I dropped off the car to Joe at classic auto last weekend to get some minor body repairs done before winter. Then the work will begin for dgrr 2017. I need to rebuild the rear diff, swap in the 5 speed, fix a few other minor things. Stay tuned!

Whizbang · 09-08-2016, 08:31 PM

I always like seeing long term ownership

djmtsu · 09-09-2016, 10:17 AM

Quote:

Originally Posted by Buggy

I dropped off the car to Joe at classic auto last weekend to get some minor body repairs done before winter. Then the work will begin for dgrr 2017. I need to rebuild the rear diff, swap in the 5 speed, fix a few other minor things. Stay tuned!

How is Joe?

I haven't seen or heard from him in a LONG time. Pretty much since his epic journey to DGRR, then on to Florida and back.

Buggy · 09-25-2016, 08:01 AM

He is doing good. He is planning on getting at his fc again this winter so hopefully we will see him back soon.

Buggy · 11-30-2016, 07:55 PM

Picked my car up from Joe this past Sunday. He did a great job as always! Car is now at my work in it's long term bay for the winter. I took my SA transmission to the local trans shop to have it all gone over before I swap it into the car. Started trying to figure out how I can bring the front of the car up about 1 or 1.5 inches. Kind of sick of having my exhaust hit the pavement everywhere lol. Also need to make room for some new wheels and rubber! Stay tuned for pics!

djmtsu · 12-01-2016, 11:57 AM

Super nice! Bringing it down south this coming spring?

Buggy · 12-04-2016, 08:17 AM

That's the plan. The dgrr trip is in the works for this spring and the rx4 should be good to go.

Buggy · 04-16-2017, 08:43 PM

So its looking like the rx4 isn't going to make it to dgrr. Having some issue with the oil pressure. When it's cold it works great 100psi+ of oil pressure at 3000rpm. When engine temp hits just below 150 degrees Fahrenheit oil pressure randomly drops almost to nothing for a split second and then slowly comes back up. After that I can only manage about 85 to 90 psi max oil pressure. I've replaced the sender for my gauge, front cover o ring, rear oil regulator (fd regulator), front regulator spring shimmed 1/8", and oil cooler thermostat and spring. Guess the FC will make the trip instead this year.

Buggy · 11-05-2017, 09:20 AM

It's been a long time since I updated these. I didn't take the rx4 to deals gap in april. Just ran out of time to work out the bugs. I had to jet the carbs differently because of the new fuel system changes. Also, after a trip to the drag strip I had to build different throtttle linkages. The old ones kept breaking on me. Got the car down in the 14's though at 95 mph. Also have a coilover spring setup for the front to install. Otherwise the car ran flawless all summer. The time has come to sell it though sadly. It will likely find a new owner in the spring.

06-23-2015, 10:13 PM	#76
GySgtFrank Professional Stick Poker Join Date: Feb 2011 Location: Stafford, Ks. iTrader: (0) Posts: 1,005 Rep Power: 15	looking very nice. __________________ 1979 SA22C (parts of one anyway) http://rotarycarclub.com/rotary_foru...ad.php?t=15585 1975 MG Midget (building) http://rotarycarclub.com/rotary_foru...ad.php?t=18681 1988 N/A SE model FC, dead stock and less than 85k on the clock. This one actually runs, so I don't fuck with it.

09-07-2016, 01:16 PM	#80
Buggy I've been Wankeled! Join Date: Apr 2010 Location: Mildmay, Ontario, Canada iTrader: (0) Posts: 260 Rep Power: 15	I dropped off the car to Joe at classic auto last weekend to get some minor body repairs done before winter. Then the work will begin for dgrr 2017. I need to rebuild the rear diff, swap in the 5 speed, fix a few other minor things. Stay tuned! __________________ 1976 Rx-4 hardtop. Half bridge 3B 13B, S5 NA rotors, Renesis e-shaft, stat gears, and bearings, balanced rotating assembly, RE dual weber 36 DCD's 203rwhp 137ft-lbs torque DGRR 2011 3rd place 1974 Rx-4 all original 27,000 miles 1988 Rx-7 TII 320rwhp. DGRR 2012 3rd place

09-08-2016, 08:31 PM	#81
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	I always like seeing long term ownership __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

09-25-2016, 08:01 AM	#83
Buggy I've been Wankeled! Join Date: Apr 2010 Location: Mildmay, Ontario, Canada iTrader: (0) Posts: 260 Rep Power: 15	He is doing good. He is planning on getting at his fc again this winter so hopefully we will see him back soon. __________________ 1976 Rx-4 hardtop. Half bridge 3B 13B, S5 NA rotors, Renesis e-shaft, stat gears, and bearings, balanced rotating assembly, RE dual weber 36 DCD's 203rwhp 137ft-lbs torque DGRR 2011 3rd place 1974 Rx-4 all original 27,000 miles 1988 Rx-7 TII 320rwhp. DGRR 2012 3rd place

11-30-2016, 07:55 PM	#84
Buggy I've been Wankeled! Join Date: Apr 2010 Location: Mildmay, Ontario, Canada iTrader: (0) Posts: 260 Rep Power: 15	Picked my car up from Joe this past Sunday. He did a great job as always! Car is now at my work in it's long term bay for the winter. I took my SA transmission to the local trans shop to have it all gone over before I swap it into the car. Started trying to figure out how I can bring the front of the car up about 1 or 1.5 inches. Kind of sick of having my exhaust hit the pavement everywhere lol. Also need to make room for some new wheels and rubber! Stay tuned for pics! __________________ 1976 Rx-4 hardtop. Half bridge 3B 13B, S5 NA rotors, Renesis e-shaft, stat gears, and bearings, balanced rotating assembly, RE dual weber 36 DCD's 203rwhp 137ft-lbs torque DGRR 2011 3rd place 1974 Rx-4 all original 27,000 miles 1988 Rx-7 TII 320rwhp. DGRR 2012 3rd place

03-29-2016, 12:33 PM	#78
13bt The Newbie Join Date: Feb 2008 Location: Florida iTrader: (0) Posts: 18 Rep Power: 0	hey Buggy hows the 4 running? love the build!

12-01-2016, 11:57 AM	#85
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (10) Posts: 4,043 Rep Power: 21	Super nice! Bringing it down south this coming spring? __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

12-04-2016, 08:17 AM	#86
Buggy I've been Wankeled! Join Date: Apr 2010 Location: Mildmay, Ontario, Canada iTrader: (0) Posts: 260 Rep Power: 15	That's the plan. The dgrr trip is in the works for this spring and the rx4 should be good to go. __________________ 1976 Rx-4 hardtop. Half bridge 3B 13B, S5 NA rotors, Renesis e-shaft, stat gears, and bearings, balanced rotating assembly, RE dual weber 36 DCD's 203rwhp 137ft-lbs torque DGRR 2011 3rd place 1974 Rx-4 all original 27,000 miles 1988 Rx-7 TII 320rwhp. DGRR 2012 3rd place

04-16-2017, 08:43 PM	#87
Buggy I've been Wankeled! Join Date: Apr 2010 Location: Mildmay, Ontario, Canada iTrader: (0) Posts: 260 Rep Power: 15	So its looking like the rx4 isn't going to make it to dgrr. Having some issue with the oil pressure. When it's cold it works great 100psi+ of oil pressure at 3000rpm. When engine temp hits just below 150 degrees Fahrenheit oil pressure randomly drops almost to nothing for a split second and then slowly comes back up. After that I can only manage about 85 to 90 psi max oil pressure. I've replaced the sender for my gauge, front cover o ring, rear oil regulator (fd regulator), front regulator spring shimmed 1/8", and oil cooler thermostat and spring. Guess the FC will make the trip instead this year. __________________ 1976 Rx-4 hardtop. Half bridge 3B 13B, S5 NA rotors, Renesis e-shaft, stat gears, and bearings, balanced rotating assembly, RE dual weber 36 DCD's 203rwhp 137ft-lbs torque DGRR 2011 3rd place 1974 Rx-4 all original 27,000 miles 1988 Rx-7 TII 320rwhp. DGRR 2012 3rd place

11-05-2017, 09:20 AM	#88
Buggy I've been Wankeled! Join Date: Apr 2010 Location: Mildmay, Ontario, Canada iTrader: (0) Posts: 260 Rep Power: 15	It's been a long time since I updated these. I didn't take the rx4 to deals gap in april. Just ran out of time to work out the bugs. I had to jet the carbs differently because of the new fuel system changes. Also, after a trip to the drag strip I had to build different throtttle linkages. The old ones kept breaking on me. Got the car down in the 14's though at 95 mph. Also have a coilover spring setup for the front to install. Otherwise the car ran flawless all summer. The time has come to sell it though sadly. It will likely find a new owner in the spring. __________________ 1976 Rx-4 hardtop. Half bridge 3B 13B, S5 NA rotors, Renesis e-shaft, stat gears, and bearings, balanced rotating assembly, RE dual weber 36 DCD's 203rwhp 137ft-lbs torque DGRR 2011 3rd place 1974 Rx-4 all original 27,000 miles 1988 Rx-7 TII 320rwhp. DGRR 2012 3rd place

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