Country Boy

iTrader: (24)

Well, Ive been fully dyno tuned. My final numbers are... 425 RWHP and 384 RWTQ. I have all the bolt ons, Kooks 1 7/8, ORY, Hooker catback (no cutout), ported TB with intake throat ported to match, UDP, etc...

Not a high as I would have thought since I made 422 HP with the X2 and a set of Jays old heads. Heads are stage 2 5.3s with 11:1 compression. Its not too bad.

Ignore where it says GTO.. dyno likes to use random names

Beast96Z

iTrader: (21)

It's not bad, but when SOME people are making that on stock heads, it makes you wonder. With the X3 being only 2 degrees bigger than the X2, I wouldn't expect drastic gains from the cam swap, but would expect more than 3hp. Sounds like something is up somewhere. With all the talk about these heads latley, I would wonder.

Country Boy

iTrader: (24)

Very true.

Sanders

Yeah, that does seem a little lower than I would expect. TQ seems pretty low also. Is this through the stock 10 bolt?

Country Boy

iTrader: (24)

Yes, stock rear...

Sanders

Hmm, well something does seem wrong then. I did 401 hp 395 tq with a Futral FM11, 228/230 .595 .595 112 with stock heads. With your much larger cam and what are usually a sweet *** set of heads I would have been hoping for more through the stock rear. I would have at least been expecting hp in the 430s and tq in the low 400s. Graph looks pretty decent, pulling good up top, I don't know what to tell ya, besides enjoy that beast!

offaxis

iTrader: (19)

Sure some people make that much power on stock heads but that is far from the norm. Ill just toss this little nugget out there
-------------------------------------------------------
Absolute 5.3 s2 heads, TSP 231/237 cam, TCS 4200 stall, Moser 12 Bolt w/3.73's,True Duals,
423RWHP and 383RWTQ with a ls1 intake and stock TB
https://ls1tech.com/forums/dynamometer-results-comparisons/213862-absolute-5-3-heads-tsp-231-237-dyno-results.html

--------------------------------------------------------
AS Stage 2 5.3's & TR 224 Cam Dyno Results
Peak hp 432 HP
peak TQ 410

https://ls1tech.com/forums/dynamometer-results-comparisons/203640-stage-2-5-3-s-tr-224-cam-dyno-results.html

These heads are cnced so they are all pretty much the same. With all the talk about these heads lately Im just wondering how how these guys are making all this power.
Country can ya tell more about your setup
exhaust etc

SOM WS6

Only thing differant from yours to mine is really the heads and I have a 90mm LSX. My cam is a little smaller than the x3. Odd. Hmmmmmmm.
Sorry.

Country Boy

iTrader: (24)

I do have a list

Induction

Fast Toys Ram Air
Holly Powershot filter
TSP smoke clear lid
Whisper MAF ends
Absolute Speed 78 mm TB
BMR TB bypass

Fueling

FMS 30# red top injectors
Walboro 340 intake fuel pump

Engine

LS6 block
Absolute Speed Stage 2 heads
~ 2.04/ 1.60 Rev valves, Comp 977 springs, titanium retainers
Hardened pushrods
Comp R lifters
Yella Terra Rockers
LG’s G5X3 cam
Rollmaster dual chain w/ torrington bearing
Diamond forged pistons 3.905 bore
Diamond Pro Select Plasma Moly file fit rings
Eagle ESP 6.1 H beam rods w/ .927 floating pins
ARP rod bolts
ARP 12 pt. head studs
ARP main studs
6.0 crank
Stock gaskets (graphite head gaskets)
Thunder Racing ported and shimmed oil pump
ASP under drive crank pulley
Federal Mogul main and rod bearings STD
Hypertech 160* t-stat
Poly motor mounts
Accurate Machine Works PCV catch can

Exhaust

Kooks 1 7/8 stainless headers
Kooks 3” off road Y pipe
Hooker catback
Deleted AIR system

Drivetrain

Spec stage 3I
McLeod adjustable master
Factory Hurst shifter
Poly trans mount

Computer

Dyno tune by Rev Xtreme

Suspension

Kenny Brown double diamond subframes
Dragin Motorsports LCAs
SLP Eibach springs

offaxis

iTrader: (19)

BTW

These are very good numbers. Most cars are not making 430+

I keep seeing h/c cars in the 400-425 range as the norm.

offaxis

iTrader: (19)

Very nice list

How many miles on the motor?

Country Boy

iTrader: (24)

about 3000... I think.. lol

Country Boy

iTrader: (24)

Ive heard Im leaving some power by using the 1 7/8 header.....

offaxis

iTrader: (19)

I think with a nice dual exhaust system and a fast intake you wil be over 450 hp which would be a real beast.

I know you would like to see more power but its hard to complain about a 425rwhp car

Country Boy

iTrader: (24)

I had a dual system, not with this setup though... I couldnt stand it anymore... the scraping, drone, noise, etc...

I wonder id I could do a back to back with a good dual vs a Y and catback at Rev Xtreme... I still have my duals...

offaxis

iTrader: (19)

I got my duals over 2 years ago. I gain 1.5 tenths at the track over my open cutoutwhen i had a 3in custom y pipe. I wish I had dynoed but my car has alwasy made great power since I put the duals on. I noticed alot of the higher hp cars have duals. What kind of mufflers were you runing on your duals?

Country Boy

iTrader: (24)

The Flowmaster one chamber Delta Force race mufflers.

Country Boy

iTrader: (24)

http://community.webshots.com/album/78010794EYKSmV

offaxis

iTrader: (19)

Try a Switch over to the Dyno max ultraflows. They have a nice sound and make great power.

TA Dave

Carl, you're losing tq with the larger tubes on stock ci. Also the catback in the next restriction, I like the sound of the Hooker, but I'd add a cutout. With a cutout I'd guess your numbers will improve...