zippy Posted April 26, 2006 Report Share Posted April 26, 2006 Last week we finished up some work on a VHO and came up with some very impressive results. Initially the project began as just a cam swap, but through some chatting the idea of new cylinder heads came about. Using my preferred LQ9 cam (the comp XER273HR) and a set of Dart 225's we picked up almost 9mph in the trap speed with only a couple changes to the tuning. After the injector swap is done there will probably be another couple mph gain since the injector duty cycle goes to over 100% at 5400rpm. I will certainly hold to the results in saying that they were outstanding and even better than expected. The truck still has enough torque to light the tires of on an off idle hit even though it still has the stock torque converter. The gas milage was up around 20mpg on the trip. This would certainly be a highly recomended and fairly inexpensive for the power increase modification. Link to comment Share on other sites More sharing options...
04CHASE Posted April 26, 2006 Report Share Posted April 26, 2006 interesting , how much did you pick up the heads for? Link to comment Share on other sites More sharing options...
Holty Posted April 26, 2006 Report Share Posted April 26, 2006 damn, thats pretty impressive for those mods. good work zippy! Link to comment Share on other sites More sharing options...
BlakAZss Posted April 26, 2006 Report Share Posted April 26, 2006 Last week we finished up some work on a VHO and came up with some very impressive results. Initially the project began as just a cam swap, but through some chatting the idea of new cylinder heads came about. Using my preferred LQ9 cam (the comp XER273HR) and a set of Dart 225's we picked up almost 9mph in the trap speed with only a couple changes to the tuning. After the injector swap is done there will probably be another couple mph gain since the injector duty cycle goes to over 100% at 5400rpm. I will certainly hold to the results in saying that they were outstanding and even better than expected. The truck still has enough torque to light the tires of on an off idle hit even though it still has the stock torque converter. The gas milage was up around 20mpg on the trip. This would certainly be a highly recomended and fairly inexpensive for the power increase modification. <{POST_SNAPBACK}> Otherwise stock? Link to comment Share on other sites More sharing options...
Black2003SS Posted April 29, 2006 Report Share Posted April 29, 2006 I'm intereste din this as well if this is stock...I am getting the dynatech header system this weekend. Link to comment Share on other sites More sharing options...
detjoe Posted September 26, 2006 Report Share Posted September 26, 2006 This would certainly be a highly recomended and fairly inexpensive for the power increase modification. <{POST_SNAPBACK}> But what about gains w/o heads or headers, does it shift the power band up? or is it all over deal? For a daily driver? Will it like my TBTC? I am cam shopping now interesting , how much did you pick up the heads for? <{POST_SNAPBACK}> what about ported stock heads? Chime in with cam input please Link to comment Share on other sites More sharing options...
drako Posted September 26, 2006 Report Share Posted September 26, 2006 does this cam maintain drivability, still able to tow with it etc? and where did your avatar and sig go? Link to comment Share on other sites More sharing options...
BenKey Posted September 26, 2006 Report Share Posted September 26, 2006 Pretty good gains for the money. Do the Darts have any work done to them or are they the stock cast? Link to comment Share on other sites More sharing options...
04CHASE Posted September 26, 2006 Report Share Posted September 26, 2006 any flow #'s on these heads? how do they compare to wcch 6.0 heads? Link to comment Share on other sites More sharing options...
zippy Posted September 30, 2006 Author Report Share Posted September 30, 2006 The cam is the same as Novanet, Revolutionary, and Vanilla Gorilla is using. It still has enough torque everywhere once you get it tuned it to do everything that the stock cam could do from what I found. The Darts on this truck are as cast at this point. We wanted to try this as a bolt on and go kind of deal. It's making damn good power so far and has excellent drivability. Link to comment Share on other sites More sharing options...
Blaker888 Posted September 30, 2006 Report Share Posted September 30, 2006 So r new heads required if u run this Cam? Link to comment Share on other sites More sharing options...
VHO_Tek Posted October 12, 2006 Report Share Posted October 12, 2006 XER273HR - 224/230 - .581/.588 w 1.7 rocker - 114 LSA I noticed the thread started with "just a cam swap" and wondered about the TC? Does he have a higher stall converter, that cam seems a tad big for a stock stall? Link to comment Share on other sites More sharing options...
misterp Posted October 13, 2006 Report Share Posted October 13, 2006 XER273HR - 224/230 - .581/.588 w 1.7 rocker - 114 LSAI noticed the thread started with "just a cam swap" and wondered about the TC? Does he have a higher stall converter, that cam seems a tad big for a stock stall? The stock truck doesn't have enough stall in the converter! But, rough and dirty the numbers on that cam work out to only -1 degrees of overlap. That cam is actually kinda tame, definitely blower friendly if not actually turbo friendly. I'm sure it would drive ok on the factory converter but the TBTC is probably just perfect for it. Link to comment Share on other sites More sharing options...
firervfd37 Posted October 16, 2006 Report Share Posted October 16, 2006 so this cam and a tbtc is all i need? with no aftermarket headers of course. how much r tbtc or what kind? Link to comment Share on other sites More sharing options...
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