I just finished dynoing a new 01 5.3 truck on my dynojet 248 chassis dyno.

Mostly stock with some bolt ons.

261 RWHP before cam
297 RWHP with 02 z06 cam
(stock springs, retainers,pushrods etc (didnt change any valvetrain, i checked for coil bind and there is none)
311 RWHP Removed serpentine belts

 

Wow, that's pretty good for just a cam swap. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

How did the bottom and midrange power look compared to the stock cam?

John

 

36 hp is a good peak jump but what about the area under the curve? How much did the Z06 cam move up the powerband? What rpms did you dyno from?

 

It made more power from 3100 rpm on. Below 3100 is was a minimal (5 hp) difference, and it just pulled away all the way up.

 

what else have you done to your truck? numbers seem a bit high

 

Is this the Z06 Cam at SDPC for 185.00.I wonder what it would do in a 4.8.Any Ideas <img border="0" alt="[burn out]" title="" src="graemlins/gr_burnout.gif" />

 

not my truck, its a customers at our speed shop.

It has a flowmaster catback, airfilter, throttle body spacer

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by C4VetteLS1:
<strong>(stock springs, retainers,pushrods etc (didnt change any valvetrain, i checked for coil bind and there is none)</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You still have the stock 5.3L valve springs in there? If so, they won't last long with the .550 lift. I think the stock 5.3 springs' max lift is .500......... <img border="0" alt="[bomb]" title="" src="graemlins/gr_bomb.gif" />

 

Any chance you can print the dyno sheet?What was torq. before and after?

 

The stock springs go more than .500 lift. We checked coil bind, no problems.


we have another truck with 10k miles on it with stock springs, no problems.