what is a safe dd pulley size?

[2003Terminator]

How much psi is a safe amount for a dd driven 03 Cobra?

 

[SteelersVenom06]

Guess it depends on how hard you daily drive your car. If you're boosting it like crazy, I'd look into some cooling upgrades before pullying it. I'm going 2.93 as a middle of the road pulley to get me to 450hp.

Regardless, there are guys DD'ing 2.76 uppers without any trouble.

 

[dougwg]

Safety is more a factor of the tune rather than pulley size

 

[Posi]

Hell just pick one from 2.93 to 2.76 or 2.93/4lb., 2.93/2lb. 2.80/2lb., any are safe as long as you have a conservative tune!

 

[SNAKE CHARM]

I went with the 2.93, until I do some fuel upgrades and cooling mods ,then the 4lb lower unless I win the Whipple!:-D

 

[2003Terminator]

what are some cooling upgrades I can do to for a 2.93 pulley size?

 

[Posi]

Heat Exchanger, head cooling mod., expansion tank, other than that I'm drawing a blank. With just the 2.93 you shouldn't have to worry much though but regardless you need to do the head cooling mod! Oh yeah Lethal Performance carries everything you need!

 

[speeddemon2000]

Don't go less than a 2.76. Trust me. I beat the shit out of mine with that setup no problems. IMO if I would have stayed with just the pulley and stayed away from high speed runs and nitrous the engine would have lasted 100k miles no problem.

 

[unit213]

Safety is more a factor of the tune rather than pulley size

Exactly Doug.

I'm making over 600rwhp on pump gas and I have been for a long time
now. Run whatever pulley you feel like. Make as much power as you want.
Just be sure that the tune is right.

 

[I-CAN-STANG]

I use to "dd" my car with a 2.76 upper pulley. It now has 66k miles on it. (pullied at 18k miles)

 

[Tom's_03SVT]

I ran a 2.76 for awhile great power and torque for a DD.

Tom