HP estimate

[squidz]

Going for a dyno this weekend on the new engine. What do you guys think I'll get at the wheels?

Running 347 stroker .040 over
-Airgap rpm manifold
-Patriot SBF heads
-Crane energizer 1.6 roller rockers
-Comp roller cam 230 duration @ 0.05 / .544 lift
-Msd 6al
-Holly 670 cfm street avenger
-10.5 compression
-4sp toploader

 

[iskwezm]

Im gonna guess 338/365

 

[Fast63]

356/401!!!!!

 

[ForceFed70]

Im gonna guess 338/365

Something close to this.

 

[iskwezm]

The dyno will either make you smile or make you cry................ive been on both ends.

 

[mdjay]

The dyno will either make you smile or make you cry................ive been on both ends.

I heard that about you lol

 

[iskwezm]

I heard that about you lol

there were no tears............just cussing

 

[brianj5600]

I smile everytime I drive my car. I don't want to risk diappointment of finding out it is really less powerful than I think.

 

[squidz]

I cried, cussed, then cried again

I'm soooooooo disappointed.. 300 hp 305 tq at the wheels on a dynojet dyno

 

[57fairlane]

300rwhp and 305rwtq . . . ?!?

something isn't right.
It should make over 350rwtq even if it only makes 300rwhp

sure it isn't a "302" .040" over?

 

[1967project]

Squidz you got me interested, I am in a similar situation and am also running a 347 (302) .30 over with just a dual plane intake, X303 cam, 351 heads with larger valves, holly 750, MDS
6al, 1.6 rockers, C4.
Anyone out there want to take a stab at this combo?

 

[57fairlane]

Here is a mild 347 just for reference . . .

9.5:1
ported e7s by me, stock valvetrain (springs, valves, rockers etc)
f-cam
Holley systemax (EFI)
65mm bbk throttle body
1 5/8" longtubes
3" exhaust
t5

 

[10secgoal]

Your problem is in the heads. Patriots SUUUUUUUUUUUUUUUUUUUUUUUUUUCK a fat one. Ditch those, and you'll find you power. Rich made 311rwhp with a 306 and cast iron heads. Lemme find a link here.....

 

[10secgoal]

http://bbs.hardcore50.com/vbulletin/showthread.php?t=43122

My local machines shop thought his flow bench was honest to god broken when flowing pro comps. And pro comps that's I've seen don't look that bad.

 

[squidz]

I didn't know the heads were that bad?!?! what about a port/polish or should I just get a pair of afr 185's..... and do the afr's justify the gain?? what improvement should I expect?

 

[SadbutTrue]

I was gonna post yesterday that those numbers aren't bad, but if you're looking for a part to be mad at, the Patriot heads are the likely ones. They're chinese made ripoffs of AFRs with terrible QC and in general are incredibly ****ty (I believe I said that in another of your threads, perhaps it was someone else's though). But yeah, the Patriots are massive aluminum turds. Spend the money for real AFRs or Trick Flows or Performer RPMs.

 

[57fairlane]

I don't know about the patriots, but the procomps can be ported and made to flow close to Victor Jrs . . .

Imagine less than World Products quality out of the box and we're still under that.

Where do you live? If you are in GA, I work for a guy that ports heads for a living (does matherly's Real Street car among others)

 

[mdjay]

+1 on the AFR's

 

[SadbutTrue]

I don't know about the patriots, but the procomps can be ported and made to flow close to Victor Jrs . . .

Imagine less than World Products quality out of the box and we're still under that.

Where do you live? If you are in GA, I work for a guy that ports heads for a living (does matherly's Real Street car among others)

As this guy says, tt might be cost-effective to look into porting to correct some of the manufacturing defects the Patriots seem to have. While they suck stock, mostly because of cheap manufacturing, a good port job might fix all of that I suppose.

Might as well try, you wont' get much trying to sell them (and if you did, I'd feel bad for the poor guy you stuck em with lol). If you port them and still don't pick up power, Trick Flows or AFRs have never let anyone down.

 

[squidz]

whats a port job cost anyways?