BigCityFire

iTrader: (10)

I have a 99 Z28 m6. I am currently installing a Brian Tooley Stage IV cam, 799 heads with BTR 660 dual springs, LS6 intake, and a NW 92mm tb.

I currently have Pacesetter 1 3/4" LT headers, ory, slp lm2 catback, slp lid and k&n filter.

What rwhp can I expect? Anyone running a similar setup?

jsteele90

iTrader: (13)

what are the specs on that cam?

BigCityFire

iTrader: (10)

235/242
Intake .620
Exhaust .593
111 lsa

jsteele90

iTrader: (13)

420hp

BigCityFire

iTrader: (10)

I hope I can get a bit more than that out of it...

jsteele90

iTrader: (13)

stock heads right?

BigCityFire

iTrader: (10)

799 heads, unported. Car came stock with 853 heads.

jsteele90

iTrader: (13)

but they are unported stock gm castings. btw one dyno might say 390 for your car and another one 460 dyno numbers dont mean ****, its a tuning device. track times are what matters.

LS1rob00

iTrader: (9)

+1

I'd say 420-430whp most likely.

HCI2000SS

iTrader: (2)

Really just depends on the dyno, but on the average Dynojet dyno maybe 420 ish

ds98formula

iTrader: (3)

If not on the car yet I would have a good valve job done on them to pick up a bit of power.

Kingc8r

iTrader: (21)

I'd say 415-425whp since using 799s, 243s tend to do slightly better

BigCityFire

iTrader: (10)

How much power can I pick up by having them ported?

Kingc8r

iTrader: (21)

Advanced Inductions claims this:

"Typical gains are 40-50rwhp over the as cast 243, with most LS1 & LS2's producing 450-500rwhp SAE with daily drivable cams."

A.R. Shale Targa

iTrader: (2)

Do NOT send those heads to TEA or Advanced Inductions unless you want
your dyno numbers to read 460-470 instead of 420-430.....

Lspoor

im running a similiar set up im just on the fence about about doing a valve job on my 241's or sending a set of 5.3's to Advanced Induction for P&P action. I would also guess 400-430 rwhp.

BigCityFire

iTrader: (10)

I hand Ported My 799 Heads. They're Not Perfect Like A Cnc Job, But The Machine ShoP Doing My Valve Work SaId They Look Great. I Guess Time Will Tell.

BigCityFire

iTrader: (10)

No dyno numbers yet, but it sounds good! Just got it on the road a couple days ago.

Kingc8r

iTrader: (21)

Interested in results. I'm on the fence about porting my heads. I want this cam but Tooley said you should keep the 243s stock with this cam.

Sounds good btw

Rise of the Phoenix

iTrader: (27)

Wonder why Tooley says that? You'd think the CNC'd heads would work well with that cam. Possibly because of the lift?