All this talk over intakes and headers is getting old. when are some compnaies going to come out with lightened UDP. i had one on my old car and it was awesome. it freed up so much power from the engine. btw the udp is a lightened crank pully.

 

i hear alot of people talking about these but have never actually had them on one of my cars.... how much of a difference does it make (hp wise), and is it safe for your engine/tranny

 

doesnt free up very much power

 

The crank pulley frees up a ton of torque, I had the whole Unorthadox Racing kit on my 2002 Celica GT-S. Very wise investment.

 

does anyone make one for the tC?

 

yes im highly interested in UDP

 

it freed up 9 horses/7lbs of tq on my escort zx2.......thats better than most intakes.


This is a cry out to a machine shop or some aftermarket company...........make the udp for the tC!!!!!

 

yeah the pullies would deff make a difference in power for this car.

 

Crank pully is usually a bad idea,...the Alternator pulleys and the Power Steering ones worked well for my h22 accord. But, you shouldnt throw on a lightened crank pulley because it could mess up your crank over time....but i guess being this careful is just me, everyone else seems to think that im crazy with the comments I make.

 

if i got a lighter alternator pully wouldnt that make more power to prevent my lights from flashing when my sub hits?

 

No, actually it would be bad to have a lighter alternator pulley because its actually making the belt work less...so it would be bad for a big system. and would probably make your lights dim.

 

ok just checking i guess ill just wait and get another battery once i get my new system

and sorry for draging this off topic like that

 

i too want an UDP, i think it would help alot

 

You may want to check Perrin they make pulleys for the xa/xb. If thats any help.

 

It will have absolutely no effect on the output of the alternator. The output is affected by rpm (up to the regulation point) and the internal design of the alternator. It has nothing to do with how easy or hard the pulley itself is to turn.

 

I should also note that if you are talking the engine damper this is more then a pulley: it removes the vibration from the engine. A near crazy idea to remove this. As it directly effects the longevity of the engine, if not why would the factory, you know the guys that give you a warranty, go through all the trouble of making a heavy three piece damper if it was NOT needed? Simple it is needed especially with a steel crank which I assume the tC has. As steel tends to ring more then a cast crank. Also longer stroke cranks ala tC also tend to ring more. Basically meaning only a cringing newbie with no knowledge of fundamental engine dynamics would ever contemplating bolting on a light weight solid aluminum damper. THIS WILL VOID YOUR WARRANTY PERIOD.

http://dinancars.com/whitepapersFile.asp?ID=5

Fact: the factory spends big $$$ on each and every engine to make and install harmonic dampers.

Fact: MPG and HP would go up if the factory just milled a cheap aluminum pulley.

Fact: no factory does it. Why?

OK break-up into small grounps and discuss amoung yourselves.

 

i have to say it... i love you oldman, ur pretty much, well the MAN. Keep on keepin on oldman, i got ur back

 

engifineer and oldman

Some of these kids could learn something from you guys.

 

Great link!

 

[quote="oldman"]Basically meaning only a cringing newbie with no knowledge of fundamental engine dynamics would ever contemplating bolting on a light weight solid aluminum damper. THIS WILL VOID YOUR WARRANTY PERIOD.[quote/]

guess im a "cringing idiot with no knowledge".