Underdrive Pulley, is it worth it??

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12-04-2001, 05:27 PM

#41

Dave B

Not DAVEB the parts guy

Join Date: Aug 2000

Posts: 8,555

Quote:

Originally posted by dwapenyi

If the biggest gain from the UDP is in 1st and 2nd, then that is somewhat redundat. When I had just my CAI, my 1st gear was so powerfull that I HAD to throttle the pedal in order to prevent crazy wheelspin. So, 1st gear was already developing more power than the Maxima knew what to deal with. Adding a UDP would only make that gear worse.

2nd gear I can appreciate, but then that means the benefit to the UDP is mostly in 1 gear. I would think it affects all gears, just more subtle as you go higher up.

DW

If too much power was the case in 1 and 2, then don't buy a F-Body, Stang, Supra TT, etc because those cars too will blow the tires off at WOT in 1st and some of 2nd. Yes, traction is hard to come by in the these cars, especially 5 speed off the line. It takes lots of skill and practice to get these cars off the line effectively. On the street, I have to feather the gas somewhat to regulate wheelspin. At the track I spin some, gets some wheelspin, gets some wheelhop, and right around 5000 is where I can go fully WOT. From a roll in 1st, spinning the tires is very easy. Breaking traction into 2nd is also fairly easy. You have to understand the traits of the car. If you're running 17s, traction is even harder to come by in terms of straightline acceleration. Wide and low profile tires are good for cornering, but they suck in the straightline. Why? Because the contact patch is wide and narrow. With narrower tires you have a narrow and long contact patch. I run 215/55R16s and get muc hmore traction than I ever got with my 235/45/R17s.

What is so funny is that many people agree that the UDP does rev up the engine quicker. Ummmmm.....the more power you make, the faster the car accelerates thru the gears.

Dave

12-04-2001, 05:33 PM

#42

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Quote:

Originally posted by Dave B

What is so funny is that many people agree that the UDP does rev up the engine quicker. Ummmmm.....the more power you make, the faster the car accelerates thru the gears.

Dave

the same thing happens when your clutch slips too

12-04-2001, 05:58 PM

#43

Lordrandall

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Buy it if you have everything else.

12-04-2001, 06:34 PM

#44

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Quote:

Originally posted by Lordrandall
Buy it if you have everything else.

does that include SC too randy?

12-05-2001, 02:45 AM

#45

mykizism

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Join Date: Dec 2000

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i like my udp ^__^

12-05-2001, 06:53 AM

#46

Lime

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Join Date: Apr 2001

Posts: 4,154

HAHAHAHAH LAUGH AT MY MISFORTUNE! IT'S SO ******* FUNNY, ISN'T IT HAHAHAHAH! GO, MEDIC; YOU ARE THE NICEST GUY IN THE WORLD! I love you, man. You're great. I want to be just like you. You are my idol. You are totally the mang, mang.

I do not have door problems, and I am going to post about what the good dealership found with my car.

12-05-2001, 06:57 AM

#47

Sonic

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Join Date: Dec 2000

Location: Westchester County, NY

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POST ON ERICA!!

12-05-2001, 06:59 AM

#48

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12-05-2001, 07:16 AM

#49

ru4real

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I can't wait until I get a UDP in the future and people can ridicule me... oh wait, they do that NOW.

12-05-2001, 08:05 AM

#50

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Quote:

Originally posted by ru4real
I can't wait until I get a UDP in the future and people can ridicule me... oh wait, they do that NOW.

i love your driving man.. i was a bit leary when you pulled up at the rest stop because i didn't know your driving style.. but you did damn good.. i love your driving..