Mk3 astra v6

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fella

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colchestetr
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mk3 astra 2.5 V6
whats the best way to tune up my mk 3 v6 astra i have the f20 gearbox which is off the 2.0 ? i want to get it to about 250bhp could some one give me the best advice or point me in the right direction many thanks
 
Last edited:
Who did the engine conversion for you?

Badg3r is the guy to talk to on here for tuning GM V6's
If I remember correctly, I think he metioned that the 3.0l cams are different and provide a boost in power when fitted to the 2.5/2.6. After that then really you'd probably be just as well to put a supercharger on it. Also a lightened flywheel is a good upgrade on the V6's, it won't gain you any power but the revs will climb faster.
 
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