cujo18

My ls3 427 with prc 225 heads, fast 92 intake and cam motion 244/256 cam, 1-7/8 tsp headers.

Jtm2085

iTrader: (1)

Not to shabby. I bet you would pick up quite a bit with a head designed for bigger CI's

cujo18

Yea, just ran out of money

Jtm2085

iTrader: (1)

The feeling is all to familiar 😉

KW Baraka

iTrader: (7)

All things considered......very nice!

What's your compression ratio?

KW

cujo18

Thanks..Its 11.7 compression ratio. Its has a 12 bolt Strange HD Eaton with 3.90 gears.

jmilz28

iTrader: (13)

500/500 through a 3.90 12 bolt is VERY nice. 450ft/lbs at 3k rpms is EXCELLENT. I bet that car drives nice!! Curious what kind of MPGs you get on the freeway. Some will say "who cares?" but I say it's a good indicator of how good the combination and tune are. Either way, that graph is really excellent...nice build. Have you weighed your beast?

cujo18

Yes it weighs 3500. I'm not sure what mpg its getting on the highway, not very good in town tho lol.

1lejohn

iTrader: (9)

The torque curve is awesome. Nice build.

kinglt-1

iTrader: (26)

Numbers seem low to me by a bout 50hp even with a 12 bolt and 3.90. There have been several 416 LS3 block 243 headed cars make 550whp 500wtq with much smaller cams. Guy with a CTS-V made 500 with a 243 headed 416 and a tiny 22x cam. Threads are right here in this section.


However all dynos seem to read a little different. The graph looks impressive...nice tq and carries power well! I bet it runs great. Any plans for a track visit? I am curious to see what it traps.

cujo18

I still have the stock maf and slp lid, I need to change them.

kinglt-1

iTrader: (26)

Yes you do...I picked up 1mph on my little 346 just removing the maf all together. Recently upgraded to a FTP 98mm lid over the winter...curious to see if it gains any this spring when I get the car back out.

SoFla01SSLookinstok

Strong powerband.

What LSA on the cam? Also what air filter do you run? Get your induction opened up & you might gain 20+hp on that 427.

cujo18

The cam is 244/256.620.595.111+3. I use the K&N filter.

big hammer

She's running out of breath pretty bad up top

redbird555

iTrader: (14)

I agree those numbers are low. Even without the top end intake, the stock maf is choking it. I bet with that and some bigger headers the cat would pick up a decent amount. That motor is only about fifty who more than my bolt Ellis three did

30th t/a

iTrader: (51)

Nice setup. Definitely has some untapped power left in it. I was really considering going with a LS3 427 or 418 for my new build but decided on a built 347 and 15 psi of boost from a D1SC procharger....I hope I dont regret it over the LS3 stroker.
Id be interested in seeing some track times from your setup.

cujo18

I'm going to try and make it to the track this weekend, see what it runs.

Tuskyz28

That's go tell the real story!! Dynos is just a tool for tuning... so don't get discouraged on dyno numbers.

AINT SKEERED

iTrader: (2)

Did You make it to the track?