Phil99vette

iTrader: (11)

recieved the fax from my engine guy and the updates are in....
Intake Before | After
.100 - 072.7 - 073.2
.200 - 145.4 - 146.5
.300 - 209.2 - 215.0
.400 - 256.9 - 261.7
.500 - 290.2 - 293.1
.550 - 300.0 - 304.4
.600 - 289.8 - 313.1

Exhaust: Before | After
.100 - 050.8 - 053.3
.200 - 101.7 - 106.6
.300 - 147.8 - 146.5
.400 - 177.8 - 195.7
.500 - 203.1 - 215.8
.550 - 207.8 - 220.3
.600 - 212.6 - 223.8

Efficiency:
.200 = 72%
.400 = 74%
.500 = 73%
.550 = 72%
.600 = 72%

I had to replace 4 bent valves, a couple of torn valve seals, My comp 987 springs had lost about 15-20lbs so they were shimmed and have 140lbs closed and 340lbs open. Needless to say I am very happy and waiting to see exactly how much HP this combo is gonna laydown on the dynojet. With 4 bent valves the car made 441rwhp @ 6100 401rwtq before the clutch retaining ring snapped and rendered the car undriveable. I did not get a dyno sheet since the clutch broke right at 6150 so top end numbers are still to come.
Phillip
BTW the new combo added ~.75:1 on the compression ratio

Phil99vette

iTrader: (11)

Cam: 232 / 238 .595 / .605 111 lsa
Compression last calculated: 12.25:1
Desired compression: 225-235 psi

LOnSLO

iTrader: (15)

Phillip, that's a good improvement. Should net about 15 to 20 more at the wheels.

Phil99vette

iTrader: (11)

LonSlo:
Considering the cranking compression was down from 230 to 200 from changing cams, I am hoping the combo(Bent valves, higher average CFM intake and exhaust, and getting the compression back to 230) should net more than 20rwhp
Phillip

LOnSLO

iTrader: (15)

Also, looks like a single pattern could bump up your efficiency at the high end.

Phil99vette

iTrader: (11)

A Single pattern cam was highly recommended, I figured with a 72-73% efficiency that a slight exhaust split would work better. We'll find out, might as well as test both.
Phillip

BLKWS6

i thought you said in that other post on TEA heads that the reverse split was better for them?

VINCE

iTrader: (1)

Nice combo..

Scalpel

iTrader: (4)

Those will work AWESOME!

Phil99vette

iTrader: (11)

I am trying to see if this cam will work with the TEA heads. All of the big #s have came from Reverse split cams.
Phillip

99 Black Bird T/A

iTrader: (4)

Phil, good luck...I hope you make killer numbers and killer ET's.

Who did the touch ups?

Hardtop

iTrader: (3)

Looks good Phillip. I'll let you know how my TEA heads like a reverse split cam in a few weeks.

Bruce

WicketMike

iTrader: (13)

is the "before" how you got them from TEA and then your guy "updated" them to get the better flow #'s ?

Phil99vette

iTrader: (11)

Yes, the before was as recieved and the after was with valve, seat, and bowl work. Brian is already offering this type of work with standard and oversided valves/seats.
Phillip

Texas_WS6

iTrader: (9)

thats what I want to know

CHRISPY

Nice numbers!

What valve size and stage?

Those heads would have worked fine with a cam around .560 lift. Did you happen to flow with the intake on?

cheers,
Chris

ne14a6t9

who is your engine guy?, 313 cfm at 600 lift is what mti is getting on there stg2 ls6 heads with a 2.055 valve, Im seriuosly having a hard time believing that your 5.3l's are flowing that much, but if you say so, you are going to have a very good running motor

Phil99vette

iTrader: (11)

If your having a hard time believing that these #s are correct would you like me to post the benchflow data?

I think were using the 2.02 and 1.57's
Phillip

KGSloan

wow, impressive numbers

if you can, PM me some info on this guy, i'm looking at getting my heads ported.

99 Black Bird T/A

iTrader: (4)

Phil, you may have address this and I may have missed in the above post.

What bore is being used 3.9 or 4.0 ?

Thanks