I've read about the MPx pulley for the LNF, for which they claim to gain about 4hp on the dyno. What do you guys think? Is it worth it to get it? Also (if I'm not mistaken) MRZPerformance sells both pulleys (upper and lower). Would it be a good investment? I'm not an expert as far as those, that's why I'm asking you guys. What do you think? Is it worth it to buy it? Thank you for your input.

Christian

 

https://www.cobaltss.net/forums/2-0l...pulley-241018/

There's a review on it, but to answer your question I personally don't see a point of getting it.

 

Yep I read that review, but I really didn't understand well enough the pros and the cons

 

To me it seems like it has better throttle response, better MPG, slightly increased WHP, and It's safe immediately.

Cons, hard install, possible longevity issues (not known) and expensive for 4 horses... I think.

I guess I'm not entirely to sure either.

 

It is just one more bolt on for those serious about max power.

 

And is it recommended?

 

i would buy it

 

The install should be pretty straight forward. That is if you have the proper tools (pulley puller)

The gains are small, but then again, so is the price. I plan on getting one just to take advantage of the quicker throttle response.

 

Thank you, I think I will buy it too. MRZ has both upper and lower pulleys, maybe I will buy them from MRZ Perf.

 

The mrz pulley is also lighter than the mpx pulley just to let u know

 

No damping on this pulley = eat up the timing gears. There will be tears...

Not worth it. Buy a properly damped one like ATI or stay stock.

 

Excuse my english, but I didn't understand really what you meant. What does "damping" mean?

 

Doesnt absorb shocks or vibrations, like when a a/c clutch engages

 

So, because of that, is it something recommended of not?

 

damping = yes, go ahead and buy

no damping = no, do not buy

 

While this article is for a BMW engine, the basic principals about using an undamped pulley still apply.

ATI - The Dangers of Power Pulleys & Understanding the Harmonic Damper

 

I bought it. Who the hell uses there A/C anyways?

 

This guy

 

I use my A/C Colorado has some seriously Dry heat

 

People in S Fla that get +85* weather for 10 months a year

 

IIRC the LNF and other ectoecs are internaly dampened and ballenced. I see no dampner on the oem pully.

 

I looked at a breakdown of that pulley and I didn't see one either. Anyone else know if there is rubber on that pulley anywhere? And if you chime in POST A PIC!!!