AutoRotate

The engine that I'm looking at is set up with the following:
99 LS1
LS6 intake
243 heads
Thunder cam 230/224 (.571 .563 111 LSA)
7.4 hardened pushrods
LS2 lifter trays
Patriot Extreme Gold dual valvesprings

Running through Hooker headers and a 3" exhaust it made 386 whp and 379wtq. I thought this combo would have done significantly better.

Anyone have thoughts on this?

AmDWs6

i have a feeling that it could do more HP and those cam numbers 230/224???
228/232 might have been better....

LS1T56FTW

iTrader: (3)

Could just be a stingy dyno. I would have expected ~420whp out of a setup like that. Take it to the track and see what it traps. A H/C LS1 car should be around a 120 car.

AutoRotate

AmDWs6: I am assuming that the builder used this:
http://www.thunderracing.com/shop-by...ain/Camshafts/
The 230/224 comes with the Patriot gold springs...

AmDWs6

still don't like the numbers .. though to each their own ...
but i'm sure you could get way more hp/tq might even get higher tq.

gMAG

iTrader: (1)

The engine is tuned?

5w20

iTrader: (21)

auto?

I would check those crappy valve springs and do a leak down on that engine.

HCI2000SS

iTrader: (2)

If it traps good at the track, then forget the dyno numbers

AutoRotate

Thanks for the responses. I'll see what else I can find out.

MikeWS6

Auto ? Are the heads ported?

LS1MCSS

iTrader: (18)

If it has stock haeds and maybe the exhaust/mufflers are holding it back a little, I would say that's about right.

AutoRotate

The heads are not ported, and it's a 6M. Run through Hooker headers and 3" Magnaflow.

mike171562

iTrader: (4)

I have pretty much the same setup with a 228/232 and made 398rwhp

MikeWS6

Looks decent. Not all h/c cars are dyno queens. I wouldn't worry.

AutoRotate

OK, and I was thinking the same thing. I was thinking it might be worth an additional 10-20 hp, so it's good to hear that it's in the right ballpark.