differences between rev2 and rev3 turbo
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- MAP sensor instead of AFM
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- Bosch D-Jetronic
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(Gen III) vs.
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L-Jetronic
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(relatively primitive) engine management
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- CT20b turbo replaces CT26
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- Boost raised from 10psi to 13psi
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- Fuel cut raised from 12 psi to 18 psi
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- Different ECU
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- 4 wire O2 sensor
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- Shim under bucket valve shims
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- slightly more aggressive cams
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- Revised internals
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(pistons, con-rods etc.
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)
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- Revised cylinder head cooling passages/water jackets
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- Revised intake manifold
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(8
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'independent long ports' reduced to 4)
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- intake manifold inlet air temperature sensor added.
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i.e.
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after turbo and intercooler.
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- Revised gearbox with close ratio gearing
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- lower compression ratio
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- stainless steel head gasket
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- factory 540cc injectors replace 430cc injectors
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- revised fuel rail with bigger bore and relocated pressure regulator
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- TVIS eliminated
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- EGR eliminated
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- LSD in 80% of them
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- throttle body increased from 55mm to 60mm
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- inlet valve lift increased from 8.2 to 8.7
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- intake manifold inlet air temperature sensor added
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- Less restrictive exhaust elbow
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- Aluminum oil pan
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- more rigid alloy sump and additional oil baffles
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- Factory Catch can
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- Better Oil Cooler and relocated oil filter
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(bottom)
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- 4 Channel ABS coupled with Traction Control available
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- No.
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1 compression ring described as
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'stainless steel' instead of just
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'steel'.
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Oil ring is described as
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'stainless steel' instead of
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'a combination of steel and stainless steel'.
![tongue :oldtongue:](./images/smilies/icon_tongue.gif)