d17a1/d17a2 are the same transmissions ?

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Dec 11, 2011

02carbon_civic

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d17a1/d17a2 are the same transmissions ?

d17a1/d17a2 are the same transmissions ? is this true ?? and wat is better just swap to vtec heads or go with the ex complete motor ?????

thanks for reading enjoy ... looking forward to hearing your thoughts and opinions

Dec 12, 2011

HateOnEveryone

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Re: d17a1/d17a2 are the same transmissions ?

im no expert butim 99.9% positive its the same tranny, and for me the head swap is much cheaper therefore probally beter also if your going to be doing a head swap and geting a vafc2 insted of the ex computer it should be faster then stock ex

Dec 12, 2011

xRiCeBoYx

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Re: d17a1/d17a2 are the same transmissions ?

The D17A2 tranny has a shorter gear ratio than the D17A1. However, I'm pretty sure they mate up the same with each block.

Quote:

via Honda-Tech:
EX 5M Gear Ratio

First 3.143
Second 1.870
Third 1.241
Fourth 0.970
Fifth 0.757
Reverse 3.231
Final Drive Axle Ratio 4.412

EX AUTO Gear Ratio

First 2.722
Second 1.469
Third 0.975
Fourth 0.674
Reverse 1.955
Final Drive Axle Ratio (:1) 4.067

HX 5M Gear Ratio

First 3.461
Second 1.750
Third 1.096
Fourth 0.857
Fifth 0.710
Reverse 3.231
Final Drive Axle Ratio 3.208

DX/LX 5M Gear Ratio

First 3.462
Second 1.870
Third 1.241
Fourth 0.970
Fifth 0.711
Reverse 3.231
Final Drive Axle Ratio 4.111

DX/LX AUTO Gear Ratio

First 2.722
Second 1.469
Third 0.975
Fourth 0.674
Reverse 1.955
Final Drive Axle Ratio 4.067

Source: http://honda-tech.com/showthread.php?t=2169563