2.5L question

[Gandalf]

Does the 2.5L engine use a timing belt or chain?

Has anyone found out what makes the 20 additional horsepower (from 150 t0 170)on some of the 2.5L applications? Software or hardware?

Thanks! Sam

[FlwrPwer]

uses a chain.

Dont know the answer to the other ?

[HappyTImeHarry]

Originally Posted by FlwrPwer

uses a chain.

And thank God for that. I've changed enough timing belts over the last 10 years to last a good long while. The chain should last until you are tired of the car and trade it for a new one.

[FlwrPwer]

i wont keep it long enough.....its gone in 3 years

[The Cheat]

the extra 20hp is all software. that extra 20hp makes a TON of difference in the rabbit/jetta...enough so that given the choice between a chevy impala or vw jetta as a company car, i'd choose the jetta because now you can actually pass in top gear as opposed to it downshifting with the 150hp variant.

[bugasm99]

or you can purchase REVO/ GIAC/ C2 software for the 150 hp variant and love it just as much.

I have REVO in my 07 Rabbit and it is a workhorse for sure. Keeps on pulling throught the rpm band and awakens the 3-5K range in 3-5th gear.