shaunmotyka

XFI™ Xtreme Fuel Injection, 268XFI HR13
Good Low End Torque w/ Exceptional Mid-Range Power

that is the cam i am thinking of getting. i need suggestions???
i have pacesetter headers, bored out to a 355, ported intake, slp loudmouth 2 exhaust, and 4.10 gears. its a 1996 camaro z28 m6? does this cam have a an idle that sticks out also. i want a cam u can hear but not to big it wont be streetable.

yanal_13

idont if these would be any help these where my research for stock heads but it might give you some knowledge
courtesy stealthformula@ls1 tech
Custom Grind:



Pros: Optimal choice for most power and best drivability because the camshaft is ground specifically for your setup and what you want out of the car.

Cons: Cost a little more than an off the-shelf camshaft (another $100 or so). If you change your setup down the road, the custom cam may not work to its potential on your new setup.

Pass Emissions?: Yes or No its your choice.

Shift Point for Maximum Performance: Wherever you want.

Idle Characteristics: From tame to choppy its your choice.

M6; Require Gears?: Gearing plays a big part in cam size on a manual trans car.

A4; Require Stall?: More stall is needed for larger cams and a custom cam can be designed around your existing or planned gear and stall.





Comp Cams:



cc305: (220/230 .544/.544 114lsa) w/ 1.6RR's

Very similar in size to the LT4 Hot Cam but with 2 more degrees of duration on the intake and exhaust side at .050 and a bit more lift. Comes in a 112lsa and 114lsa. The 114lsa will have increased bottom-end power over the 112lsa while that will have increased top-end power. The 114lsa is sometimes favored by cars running Nitrous or Blowers because it provides less overlap than a 112lsa which helps maximize the power coming from the Nitrous or Blower. Features Comp's Magnum lobes which are older but proven to not take a beating on the valvetrain.

Pass Emissions?: Yes

Shift Point for Maximum Performance: 6200-6300rpm

Idle Characteristics: 114lsa will have a Smooth Idle, 112lsa will have a Choppy Idle

M6; Require Gears?: No

A4; Require Stall?: 2500+ Stall Speed



cc503: (224/230 .537/.544 112lsa) w/ 1.6RR's

Widely known for being the biggest cam you want to run on a stock headed car without sacrificing usable power and drivability. Has a strong mid-range with good top-end power. Features Comp's XE (Xtreme Energy) lobes for more top-end power. May have some cam surge.

Pass Emissions?: No, requires tuning to pass

Shift Point for Maximum Performance: 6200-6400rpm

Idle Characteristics: Choppy Idle

M6; Require Gears?: No

A4; Require Stall?: 2500+ Stall Speed





Crane Cams:



Crane 227: (210/224 .511/.553 112lsa) w/1.6RR's

Very good proven performer on stock heads. Stock LT1 heads have very restrictive exhaust ports relative to the intake ports and the 227's wide split in duration helps balance that out. The 227's low-end power starts low and is consistent through the entire mid-range making it a popular choice among B-Bodies guys because it helps them get off the line in their more heavy cars. Known to be a torque monster with great drivability.

Pass Emissions?: Yes

Shift Point for Maximum Performance: 6100-6200rpm

Idle Characteristics: Smooth Idle with a Slight Lope

M6; Require Gears?: No

A4; Require Stall?: 2500+ Stall Speed



Crane 831 AKA GM846: (222/230 .543/.563 112lsa) w/ 1.6RR's

Very similar to the cc503 just with 2 degrees less duration at .050 on the intake side and more lift on both the intake and exhaust side. Right there with the cc503 in terms of being widely known for the largest cam you want to run on stock heads to retain good drivability and usable power. Has a strong mid-range and good top-end power. May have some cam surge.

Pass Emissions?: No, requires tuning to pass

Shift Point for Maximum Performance: 6200-6400rpm

Idle Characteristics: Choppy Idle

M6; Require Gears?: No

A4; Require Stall?: 2500+ Stall Speed





GMPP:



LT4 Hot Cam: (218/228 .525/.525 112lsa) w/ 1.6RR's

Good drivability with a nice midrange, step up up from the factory LT4 camshaft hence the "Hot" in LT4 "Hot Cam". An older design but has proven itself in terms of reliability and decent power output.

Pass Emissions?: Yes

Shift Point for Maximum Performance: 6100-6300rpm

Idle Characteristics: Slighty Choppy Idle

M6; Require Gears?: No

A4; Require Stall?: 2500+ Stall Speed



GM846: see Crane 831





Lingenfelter Performance Engineering:



LPE 211/219: (211/219 .530/.560 112lsa) w/ 1.6RR's

Has great drivability and known to have instant torque in the low rpm's. Very comparable to the Crane 227 with its low rpm power thats consistent through the mid range. Lope is not very noticeable making it a nice sleeper cam.

Pass Emissions?: Yes

Shift Point for Maximum Performance: 6000-6100rpm

Idle Characteristics: Smooth Idle

M6; Require Gears?: No

A4; Require Stall?: 2600+ Stall Speed



LPE 219/219: (219/219 .560/.560 112lsa) w/ 1.6RR's

Known to be a great performing cam with awesome drivability. Quite torquey in the mid-range and top-end with a strong mid-range power band. Developed with the TPI motors in mind which explains the single pattern duration. LT1's prefer more duration on the exhaust side so the split-duration 211/219 may be a better choice.

Pass Emissions?: Yes

Shift Point for Maximum Performance: 6100-6200rpm

Idle Characteristics: Smooth Idle with a Slight Lope

M6; Require Gears?: No

A4; Require Stall?: 2600+ Stall Speed

Chimera96

If you are looking for a choppy idle, that is not the one.

I have it in my 383 and it has a "cam note" to the exhaust but by no means is choppy.

It does make great low in TQ with good mid range power. No need to pull more than 6200 RPM with this cam.

emission legal with the right tune.

If it is more about the chopy idle/sound than the Hot cam would give you that

shawngamblez28

this is the cam im running with stock heads with upgraded valve springs an 1.6 rr.part # comp cam 08-433-8 520/540 236/242. i have a video on youtube just dont know how to load on here

shaunmotyka

i am going to be porting and polishing exhaust port if that makes a difference. main goal is more power with stock heads, but sounds stupid but i think everbody likes that loping sound if i could get that and most power that is my goal. can u give me a youtube link address

shawngamblez28

youtube title is biggpoppa's 94 camaro lt1 new 236/242 cam an exhaust

shoebox

In general, the cams with big, lopey idles perform best when matched with heads that can flow more. That also means they like higher RPMs to reach that power. Your goal should be to match components as to their potential for power-not for sound (unless sound is more important than power).

97WS6SCharged

That is why you always pick the cam at the bottom of the list isn't it?

shaunmotyka

Xtreme Energy™, XR276HR
Modifications Needed code is 08-503-8

is this the cc503 cam that is talked about? this is killing me guys i dont know crap about cams and im racking my brain about this. HELP..

englundjd

Yes that is the 503, it's a very good Dailey driver cam

A comp 306 would give a nice lope in a 355, trouble is it would take quite a few rpm to make max power.

Lunati makes some decent cams ... The (pn) 20080722 would lope nicely given its size and 110lsa

Catmaigne

That XFI468 is of no use to you. Not only do you not have the proper heads to take advantage of the massive increase in life and duration, but your motor doesn't have enough cubes to keep make the right power at the right RPM. A fella over on LS1tech put that cam in a 350 and it was still pulling at 7,000 RPM. Your PCM won't be able to handle the amount of revs you'd need.

GET THE 503.

Lt1son

Just did a 503 on my 355 build very happy with it so far (125mi on motor) Car seems to be very streetable and does pull hard havent really layed into it yet. I plan on spraying down the road and im hoping to be in the mid 11's on the bottle. Car has an awesome sound at idle. My mods are in sig hope that helps