budhayes3

iTrader: (19)

Yeah, I haven't done enough research on the truck intake to know where it peters out. I remember years back guys were reporting that their trucks seemed to drop off around 5800 with the stock intake, but as you mentioned, there are guys with bigger bumpsticks that pull well over 6200. I'm sure that they could definitely benefit from more air coming in though. As I mentioned earlier about the FAST LSXrt, it made more power everywhere on a basically stock 5.3, and really shined above 4500-5k where it just blew the stock intake away (like 20hp IIRC). Too bad that 1)they're so damn expensive and 2)the newest ones coming off the line aren't machined properly or something, and they leak air/vacuum

*EDIT* I wonder if my rcsb, launching in 4x4, with a 220/224 LQ9, would be able to crack into the 12's? Theoretically, if bluecajun can get 12's with a TR220-112 5.3, stock heads, awesome tuning, good converter, and excellent traction, I should be able to do it with a 6.0, good heads, and a similar cam. The 4x4 adds more weight, but also allows for a good hook. His truck is a freak though

1slow01Z71

iTrader: (36)

224/230 on 110 should work well. The 222/224 112 I had in my old 5.3 started pulling really well at about 3600 so with more cubes and the nice bump in CR along with those nice heads should run real well.

GMCtrk

iTrader: (27)

Should be in the 12s no problem.

With my ext. cab, stock LQ9, headers, 4.10s, 4l80e with PT3600 on street tires I got 13.73 with 2.1ish 60'. Switch out the 80e for a 60e, and on some slicks with a 9.5" converter and I bet it could get high high 12s. And that's on a stock cammed 6.0. But I do know that what works in theory may not happen in reality

1slow01Z71

iTrader: (36)

closet red neck went 12.4s in a 4wd h/c 5.3 on slicks in 2wd so yours should be high 12s easily in 4wd

06murder

well it will be a damn screamer thats for sure i say get ;p or a torquer v.2

budhayes3

iTrader: (19)

OK, now my mind is back to liking the 224/230 or 224/228 type of grinds...I had actually talked myself into a Comp XER 224/228 112, or their shelf 224/230 114, but as many of you know, I'm kinda against Comp products these days.

There are a bunch of other options out there...Isky, Lunati, Cam Motion, etc. There are a bunch of others also, but many of them are ground by Comp.

I think that if I went with something along the 224/2xx line, that I'd want to take .040 off of my 317's. Didn't put any numbers in a calculator, but I think that I'd probably end up with about 10.8ish:1 (if I were to guess going by what Richard said about 10:6 on a .036 mill)

f4tal

iTrader: (8)

Billy,
You need to run the EPS 224/230 cam that I had. I would have loved to see what it wouldve done in a 6.0 you'll have great all around power and mine kept pulling to 6700.

TXsilverado

iTrader: (19)

wheatley's 228/232 112lsa cam ripped on his stock milled heads/stock intake lq4. he made 400rwhp before the fast intake. good luck pulling 6800 rpm with the truck manifold...i think with your ported heads this cam would be awesome.

budhayes3

iTrader: (19)

I actually have the EPS web page with that cam on it bookmarked in my favorites, as I'm really intrigued by it. Geoff's cams are ground by Comp (as are many manufacturers/vendors), but I haven't heard of a single failure with any of his bumpsticks. The more that I've been thinking about it over the past day or so, as much as I'm completely disgusted with Comp, I think that I would still consider one of their, or manufacturer who uses their grinds. I would think that the overlap of that cam would warrant at least an 11:1 SCR...which I guess is fine since I've been thinking more and more about shaving .040 off of my 317's. Haven't heard of anybody going .040 and having any intake alignment, or ptv (with larger cam) problems.

I've been pretty set on keeping the LSA somewhere between 112 to 114, but it seems like more and more folks are running 110, 111, and even 109 or tighter, and having good results. I'd think that a daily driven truck would benefit from the longer, flatter torque curve of a wider LSA (theoretically), buuuut, the trend seems to be longer duration, higher lifts, and tighter LSA's, and I'm sure that if I search around here there will by track times and dyno numbers to prove that these "bigger" cams with more overlap definitely work.

I'd also think that the fuel economy between the 220/224 grinds that I've been considering, and the EPS 224/230 would be noticeably different (not that I'm looking to build an "economy" truck by any means, but if I can gain like 2mpg and only sacrifice .2 to .4 tenths at the track, I might make that compromise.

Did you run that cam with the stock intake, and what kind of exhaust do/did you have? How about your static compression ratio, and torque converter stall speed?

Thanks for the reply btw brother

Yeah, Charlie's truck seemed to respond great to that cam, I forgot that he ran it with the truck manifold for a while. For me though Stew, my truck would have to become my part time toy, seeing more track duty then going to and from work and my daughter's day care duty. I also like to drive the couple hundred miles from my place in Jersey to my buddy's house in Charlton Mass, a few times a year when possible. It's about a 3 hr highway cruise. I really like those specs though for sure...hopefully some day

Eventually, I'd like to do the intake, exhaust, and torque converter upgrades to match with a cam along those lines, but I think that for now I'm going to top off with 224 or even 225 intake duration at the most. I'm basically on the fence between 220, 222, and 224 on the intake side, with lifts between .580 to .610ish.

BlackGMC

iTrader: (31)

I love my tiny 220/224. I am really considering not installing the eps cam. Throttle reaponse is great, low end is nasty and it actually pulls to about 6200-6400