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Old 04-15-2008, 01:18 PM   #1 (permalink)
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what is the difference between 93USDM Turbo and 94 JDM Turbo engines?

hi what is the difference between 93USDM?
and 94 JDM turbo engine?
I want to know everything. All I know is the wiring different and turboct26 and ct20 B and 93 has 200 hrspwr and JDM has 245hrspwr. Any information will be helpful. Thank You
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Old 04-15-2008, 03:37 PM   #2 (permalink)
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I'm seroiusly going to commit suicide if you make one more thread about the difference between '93US and '94JDM engines.....


Quote:
Originally Posted by DavidV

- MAP sensor instead of AFM
- Bosch D-Jetronic (Gen III) vs. L-Jetronic (relatively primitive) engine management
- CT20b turbo replaces CT26
- Boost raised from 10psi to 13psi
- Fuel cut raised from 12 psi to 18 psi
- Different ECU
- 4 wire O2 sensor
- Shim under bucket valve shims
- slightly more aggressive cams
- Revised internals (pistons, con-rods etc.)
- Revised cylinder head cooling passages/water jackets
- Revised intake manifold (8 'independent long ports' reduced to 4)
- intake manifold inlet air temperature sensor added. i.e. after turbo and intercooler.
- Revised gearbox with close ratio gearing
- lower compression ratio
- stainless steel head gasket
- factory 540cc injectors replace 430cc injectors
- revised fuel rail with bigger bore and relocated pressure regulator
- TVIS eliminated
- EGR eliminated
- LSD in 80% of them
- throttle body increased from 55mm to 60mm
- inlet valve lift increased from 8.2 to 8.7
- intake manifold inlet air temperature sensor added
- Less restrictive exhaust elbow
- Aluminum oil pan
- more rigid alloy sump and additional oil baffles
- Factory Catch can
- Better Oil Cooler and relocated oil filter (bottom)
- 4 Channel ABS coupled with Traction Control available
- No. 1 compression ring described as 'stainless steel' instead of just 'steel'. Oil ring is described as 'stainless steel' instead of 'a combination of steel and stainless steel'.

Last edited by Piddy; 04-15-2008 at 10:32 PM.
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Old 04-15-2008, 04:02 PM   #3 (permalink)
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Quote:
Originally Posted by Piddy View Post
I'm seroiusly going to commit suicide if you make one more thread about the difference between '93US and '94JDM engines.....
YOU are MR@ EINSTAIN !!! VERRRY IMPRESSIVE ! THANK YOU!
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Old 04-15-2008, 11:43 PM   #4 (permalink)
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if that don't answer your questions ,nothing will !
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Old 04-16-2008, 12:04 AM   #5 (permalink)
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if that don't answer your questions ,nothing will !
hahha
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