L.P.

As the title states how much does it actually help....pick up any MPH in the 1/4th or decreases in E.T.'s or anything like that? I got the stage 2 pulley on there right now but will most likely be throwing the 2.9" on there eventually.

lsjion

It won't really add power, it'll just help keep your power you have from fading after your blower starts to heat soak. I'm not sure of how high my iats were b4 tje install, but I know after a hard pull it will bring them right back down.

L.P.

So for instance in warmer weather it will be easier on the car to race it at the drag strip? I know last year when I had the 2.9" pulley on and no cooling mods it ran like ****...think it was getting the IAT's up too high and pulling timing...well with the cobra H/E will it help my top end due to less timing being pulled?

Rippin07

It makes a big difference in the top end pull, if you look at Ralliartist?? he has a post that shows how much difference a H/E makes, I think he gained almost 7mph or something. These cars Heat soak very quickly. I noticed mine immediatley in top end pull.

L.P.

Thanks man...seems like mine lacks a bit in the top end especially when its warm out..I figured since our cars pull timing once IAT's reach a certain temperature (not sure on that exact temperature) then the H/E should be able to prevent that....maybe I will be able to put the 2.9" pulley on there and feel the full effect of it. Going to install it within the week or so.