Considering ditching my 228R for...
Considering ditching my 228R for... Well, I'm not sure I'm actually considering a custom grind cam.
Truck specs are as follows
cam is on a 112 LSA
.030 over LQ4
LS2/LQ9 replacement pistons
forged scat rods
stock crank
317 heads, milled enough to clean mating surface
I've forgotten which springs, but I believe they're PAC 1518
Most definitely a bee-hive style as opposed to dual rate
stock truck intake
stock T.B.
SLP Maf
4L80E trans, stock converter
Plans for a 2500 rpm stall
38" tires
4.56 gear
This is all in probably a 5K truck.
I originally bought the 228R off here impulsively, I'm considering changing now because I feel as if it's actually a fairly tame cam for a 6.0.
Suggestions? I was considering something along the lines of a 230/234, wanting a larger cam, would prefer it to have a choppy idle...
Thanks in advance!!
Truck specs are as follows
cam is on a 112 LSA
.030 over LQ4
LS2/LQ9 replacement pistons
forged scat rods
stock crank
317 heads, milled enough to clean mating surface
I've forgotten which springs, but I believe they're PAC 1518
Most definitely a bee-hive style as opposed to dual rate
stock truck intake
stock T.B.
SLP Maf
4L80E trans, stock converter
Plans for a 2500 rpm stall
38" tires
4.56 gear
This is all in probably a 5K truck.
I originally bought the 228R off here impulsively, I'm considering changing now because I feel as if it's actually a fairly tame cam for a 6.0.
Suggestions? I was considering something along the lines of a 230/234, wanting a larger cam, would prefer it to have a choppy idle...
Thanks in advance!!
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
What is "fairly tame"?? What is the truck not doing that you want it to? Or what does the truck do well that you want more of? What do you use the truck for, what are the overall goals?
To be completely honest, I haven't actually drove the truck as an automatic with this cam.
When it was a stick it was wicked, seemed as if the power pulled throughout, however it lasted 75 miles so I didn't really get enough seat time to really tell.
I say tame, just as there seems to be a trend that with the extra cubes of the 6.0 vs 5.7 people seem to opt for a larger cam.
Truck is a DD/weekend warrior, I'd like it to have street manners, while still having a nice broad powerband. As well as needing torque at a lower curve than cars, due to the larger tires and their added mass.
When it was a stick it was wicked, seemed as if the power pulled throughout, however it lasted 75 miles so I didn't really get enough seat time to really tell.
I say tame, just as there seems to be a trend that with the extra cubes of the 6.0 vs 5.7 people seem to opt for a larger cam.
Truck is a DD/weekend warrior, I'd like it to have street manners, while still having a nice broad powerband. As well as needing torque at a lower curve than cars, due to the larger tires and their added mass.
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I've got 2 weeks left for this semester before I've got 3 weeks off, truck isnt back on the road yet due to lack of tune for the automatic. I could do the cam swap in an afternoon, just would prefer to make the decision soon don't want to have to re-tune the truck twice.
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Verdad Gallardo if you go much bigger your current stall and even your planned 2500 are not going to fly, this severely limits any gains you might see by doing a cam swap IMO
big cam in a heavy truck on heavy tires without much stall converter isn't a good combo...and while a 6.0 can absorb more cam than a 5.7 the difference isn't a huge one
big cam in a heavy truck on heavy tires without much stall converter isn't a good combo...and while a 6.0 can absorb more cam than a 5.7 the difference isn't a huge one
I'll say it again. You could probably benefit from a smaller cam that will give you more low end torque and help moves those tires. Get one with lots of overlap and it will really stroke your butt dyno. Something like the thumpr 219/231 109 LSA
I'll be Pred-Z would be interesting to hear on this.
I'll be Pred-Z would be interesting to hear on this.
The point about the stall is a good one, I had considered a larger stall (3-3500) but I assumed that it wouldn't be very driveable on the highway with the large tires.
Granted I am running a huge cooler, -6 lines, and a fan for said cooler, I just worried with the larger converter it would slip too much at highway speeds.
"Butt dyno" I like that.. I see your point with the smaller cam, however when I actually beat on the truck it is rarely below 3-4K, along with in situations where I'm starting from a much lower RPM and need the extra "oomph" the case is in 4LO, which multiplies the final drive by an additional 2.71.
Granted I am running a huge cooler, -6 lines, and a fan for said cooler, I just worried with the larger converter it would slip too much at highway speeds.
"Butt dyno" I like that.. I see your point with the smaller cam, however when I actually beat on the truck it is rarely below 3-4K, along with in situations where I'm starting from a much lower RPM and need the extra "oomph" the case is in 4LO, which multiplies the final drive by an additional 2.71.
Dont worry about we all say stuff without thinking about it. In my opinion the problem with a bigger stall in a truck would be if you pull anything. Going up a mountain or something without the convertor locked would not be a good thing. I dont really have any experience with convertors in trucks so I could be wrong. I guess it all depends what you're doing with it.
I'll say it again. You could probably benefit from a smaller cam that will give you more low end torque and help moves those tires. Get one with lots of overlap and it will really stroke your butt dyno. Something like the thumpr 219/231 109 LSA
I'll be Pred-Z would be interesting to hear on this.
I'll be Pred-Z would be interesting to hear on this.
I am with this guy. You need less cam not more. You want to bring the peak down not push it up above 6k. It would make a huge difference...you dont want to have to rev your truck to the moon to get going or pull...and 228r with a 2500 stall in a truck just seems mismatched. You need a small intake lobe, I might go wide on the lsa, but point is so it pulls like a truck. Itll be done at 5500...but its a fuggin truck! 10 more hp a 7k aint worth ****.
Unless you go with Jakes idea and add another 200hp you need less cam imo. Especially if you ever use this vehicle as a truck. You need to drive it auto I guess its going to be a dog compared to the stick.
