View Full Version : power gain?


89cobra5.0
05-10-2008, 03:48 PM
I was curious as to what numbers a new cobra u/l intake and an ecam with 1.6's would make on a stock 5.0 with full exhaust and u/d pullies?

stang8689
05-10-2008, 04:57 PM
probably a total of 25-35 over stock, heads are the killer on the 5.0's

floodzilla
05-10-2008, 05:55 PM
id say a good 30+ hp. like stang8689 said, id get new heads, if $ tight, get explorer heads.

PJC Racing
05-10-2008, 06:16 PM
With that cam and stock heads you nead to replace the valve springs and retainers.

vtecwho
05-10-2008, 08:47 PM
with those mods and gt40 iron heads i made 265hp and 310 torque.

mjr46
05-10-2008, 11:40 PM
put a good set of heads on to complement the combo;)

nitrous_bob
05-11-2008, 07:15 AM
yup... don't bother w/ that work and no heads, i did just a gt40 swap a few years back. zero gain

i expected that pretty much... just wanted the intake on cuz i was sitting on it too long. but still, not a thing

89cobra5.0
05-13-2008, 02:47 AM
Yeah I know I need new heads.. I just started a job about a week ago and my birthday is the 15th, so ill be getting a little bit of money to play around with. I was thinking on going with some used explorer heads but wasnt sure how good they were, and was also planning on upgrading the springs and retainers as well. Id love to have a trick flow top end kit on it down the road, but I cant see that happening within a year, and I want power now!

I have the cam sitting in my room, but still need to purchase the heads, intake, and 1.6's. do you guys think I should wait to install the h/c/i all at once, and would I need bigger injectors/fuel pump? And since im in cali, would it pass smog? (I could throw the stock exhaust back on)

Jasperstang308
05-13-2008, 02:49 AM
i would save my money from the cam swap and put it else where. all you would really get is the sound