thunderstruck507

iTrader: (18)

A friend of mine had a connection for Comp cams so I placed an order for a custom grind to mimick the TR230/224 111lsa

How comparible will it be since I'm guessing the lobes are different since people say the thunder racing lobes are proprietary?

The lift numbers are virtually identical...I believe .001 off on each or so. Just curious...

I've heard good things about the TR230 cam and was going to go with that but my budget is tight so I was able to save nearly $100 with the Comp grind.

LS1>Imports

iTrader: (2)

im pretty sure thunderracing orders thier cams from comp, and grinds them.

so it should be pretty close, i would guess.

SOMbitch

iTrader: (8)

If it was ground on the X-ER lobes I think the difference will be undetectable.

PREDATOR-Z

SINCE YOU MENTION ONLY VERY SLIGHT DIFFERENCE IN LIFT, I guess that you are grinding it on XE lobes. The TR cam will be more powerfull.
This is what I would do if I was you.
230/224 .612/.581 111+2 LSA
This is a XFI/XE-R lobes
3016R intake lobe
3722R exhaust lobe
111 LSA
109 ICL

That grind will be a tad more powerful than the TR grind, with similar characteristics.

thunderstruck507

iTrader: (18)

Here's the card that came with the cam:

SPEC CARD# 13789308 SPEC CARD INQUIRY BY SPEC CARD NO
PART # 54-000-11 LS1 CHEVY LS1/GEN III '97-UP ROLLER
CORE C99 DUMMY OVERRIDE CORE
GRIND # LS1 3718 /3715 HR111.0
DURATION @ .050 INTAKE 230 ROCKER ARM RATIO
VALVE ADJ INTAKE .000 DURATION @ .050 EXHAUST 224 INTAKE 1.70
VALVE ADJ EXHAUST .000 LOBE LIFT INTAKE .3370 EXHAUST 1.70
VALVE LIFT INTAKE .572 LOBE LIFT EXHAUST .3340
VALVE LIFT EXHAUST .567 LOBE SEPARATION 111.0
DURATION .006 INTAKE C/L 108.0
TAPPET LIFT INTAKE 283 ADVANCE 3
TAPPET LIFT EXHAUST 277 HYDRAULIC Y
VALVE TIMING .050 OVERHEAD CAM N
VALVE OPEN INTAKE 7 JOURNAL DIAMETER STD .000
VALVE OPEN EXHAUST 46 RECOMMEND VALVE SPRINGS
VALVE CLOSED INTAKE 43 DEPARTMENT P
VALVE CLOSED EXHAUST 2- SPC INSTR FOR CUSTOMER


Like I said, I already have the cam I was just curious. I'm sure it will be fun either way...

PREDATOR-Z

Yeap those are XE lobes with a rate intensity of 53 Vs TR lobes that are 50.
So these are less agressive lobes, will make ~10 rwhp less than a TR lobed cam +/-

thunderstruck507

iTrader: (18)

ok, thats cool

like i said i was just curious...

I saved almost $100 on the cam package so I don't feel too terrible about it as this will be 99.9% street car and DD more than racing anyway...and $100 might not sound like much but like I said I've been trying to get this built, installed, and running/tuned for under $4k including the price of the engine and tranny, so things are tight and anything I can get at discount or free helps a ton

appreciate the advice!

btw, I dont see many dyno numbers for this cam with an auto

sadly I might have to use a LS1 intake for now too...so what would be a good number to look for as RWHP? Like maybe 360-370 after tune or maybe a hair higher?

12 bolt and 3.42 gears, throttle body will be ported, long tubes, cutouts, no emissions crap or cats, no A/C, and a free flowing air filter/intake tube