Here are the mods
ARE Built Iron Block 423 4.125 stroke 4.04 bore
Stage 3 L6.0 Heads
226/226 on 112 cam
3200 stall
4l60e
3.42 rear gears
Fast 90/90 intake
Longtubes
3in true duals through magnaflow x and singel dual in/out mangaflow muffler

 

is your smilie for the day.

 

Or this and wishing I could do this with my gf who is 1500 miles away.

 

Sending you a PM.

 

lingenfelter needs to come through w/ some customer service on a block they checked out and said was 'ok' before they put it in and charged you a few ransoms in labor.

 

Replied

Kirk,
I am hoping we can find a happy ending to this. I did buy this motor used with 1,000 miles and it was never sprayed on. The shortblock was built by ARE and the finall assembley like front and rear covers was done by 21st. I just want to know where all my power is going I know I have a small cam for a stroker but I should still be well over 400 I know that. I am going to work with 21st after lunch tomorrow to see what we can come up with.

 

Can someone first take a picture of the More TQ then HP result. Sorry about the dyno man

 

So does anyone have any idea ?

 

Damn, that is pretty bad.. even with that small cam. I can't really tell by looking at that graph, but what was the A/F ratio. Do you know how much timing they have in the tune?

 

i think the answer is in the cam, exhaust(x-pipe and then a 2 into 1 muffler), and the air/fuel ratio. it looks way lean on the big end.

 

why don't you pull the plugs and also check compression/ do a leak down test to see if those two show any signs of a problem?! sorry to hear about your luck. I could only imagine the look on your face when that graph popped up on the computer screen......good luck with it!

 

Probably makes no sense, but my first thought was the wrong degree set on cam install. Interested to find out what caused this.

 

Damn even with that cam you should make at least 40 more HP.
Almost seems like the springs cant handle the higher RPM's and everything falls on its face.
Good luck.

 

Time to roll up the sleeves and do some digging. That cam in a stock cube engine would be expected to make the horsepower your currently at. The torque seems to reflect the larger displacement of the engine. It seems like one of several possibilities is happening. First things to look at would be to watch spark advance. A knock sensor can castrate a raging bull. I would check this first. Second, look over the fuel rails to see if they're any air leaks and that the injectors are not being repositioned by the injector rail. Is the injector rail aftermarket? If all looks well with spark and fuel, then start looking at the valve train. If your compression test is low, check lifter preload. Are your lifters stock or aftermarket? This would be my best guess at a starting point for diagnosing.

Sorry to hear about your troubles. Let us know what you find out.

Good luck,

Richard

 

Whats with the tiny cam? Get a larger one and I think you'll be fine. AT LEAST a 242/242 .610/.610 114 lsa. Thats exactly what I have and it idles like a stock LS1, but its way bigger than yours for the HP you're looking for.

Who on earth picked that cam for that motor? I'm going with a 248/252 113 lsa, maybe you should just go to that too.


.

 

It's in a truck so we need all the low end we can have.

Thanks everyone for all the advice I'll have an update tomorrow night.

 

Oops, I missed that I guess.

 

Whats the oil psi at. I had a stock rebuild 346 with heads/cam with most bolt ons, and was only dynoing around 350rwhp. We attempted to change the cam, and saw the cam bearings were shot. Not sure if that caused mine to dyno low, but may be something to look into. The oil pressure was at around 20 psi or so, so that was one sign for me that something was wrong.

 

maybe re-dyno and try to start sampling @ 3000. i think that will give us a better picture of whats going on. also, as i stated before, i'm not feeling too good about that exhaust setup.

 

Dude thats not a small cam. Thast is a super small cam. I built a 383 stroker and went with a hotcam 218/228 on a 112 and guys laughed at me and that was a 383. I eventually move up and it made a huge difference. I would say you go to at least the 242/242. I feel bad for you about the dyno but you should feel good knowing that a simple 4 hours cam change will solve your problem.