There is a restrictor plate inside the DX throttle body that can be removed to allow for more airflow... is this what you're reffering to?
I've removed it from an 89 DX sedan once just to see what it would do & it killed the torque & didn't really do much for power that I could feel... it did...
I installed a 95 EX coupe Hiper exhaust on an 89 DX sedan/B18 & it was a fairly easy fit. The midpipe matched perfectly on my sedan & of course the rear section had to be cut up & new pipe routed to the opposite side, but overall not a big prob.
Obviously as you've discovered your CRX has a...
No doubt the 89 teg motor is what you need. It's very similar to a ZC & it will bolt in...common swap for 84-87s. I'm not sure if there's a way to bolt a ZC into your 4th-gen without fabricating some mounts...
mep
Parts available pulled from a black 92 Integra LS hatch:
front bumper(no lip) - $100
passenger fender - $40
driver fender - $40
headlights(pair) - $40
corner lights(pair) - $20
bumper lenses(pair) - $20
passenger mirror - $30
driver mirror - $30
All parts in excellent condition. Located...
...PS BUMPER LENSE - $20(both)
PS + DS TURN - $20(both)
PS HOOD HINGE - $5
PS HEADLIGHT - $20
AIRBOX - $10
14" STOCK RIM - $20(for one w/ 195/60/14 included)
*$250 for everything
All parts are in excellent condition. I'm in NC, please email me for shipping prices/offers... I use fedex ground.
mep
...& shipping quotes. I will also try to answer questions here when time allows.
Reason for selling: rebuilding car/ground up resto w/ ZC motor.
*If anyone needs proof of my authenticity I definitely understand & encourage you to check my references on the forum classified section feedback...
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