JesasaurusRex

iTrader: (3)

Well im so frusterated im about to order my cam like in 5 minutes lol but need some advice, i was gonna go with a crazy (relatively speaking for the 305) cam back a while ago and I asked you guys and you said Id need a lot of chip tunning, and just to go with the LT1 Cam, well i am, sorta, gonna get a Crane cam with nearly (i think) the same specs, anybody know if thisll be fine with the stock computer? Specs are as follows:

2. PowerMax Hydraulic Roller Camshafts for Emissions Controlled Vehicles without Computer


Application Series & Grind Number
Good idle, daily usage, performance and fuel efficiency, 2600-3400 cruise RPM, 8.75 to 10.75 compression ratio advised. Basic RPM 2000-5500 PowerMax
Hydraulic Roller
HR-276-2S-12 IG

Cam Specifications

Degrees Duration @ .050 Int./Exh
214
222

Degrees Advertised Duration Int./Exh.
276
284

Degree Lobe Separation
112

Open/Close @.050" Cam Lift Int./Exh
0 34
48 (6)

Gross Lift Int./Exh.
488
.509

Thanks guys always usefull, it says its for cars with out computers that doesnt matter tho or does it?

JesasaurusRex

iTrader: (3)

Oh ya should I get it with the lifters or just reuse the old ones? Anything else I need like a cam button or not necessary?

JR305

That cam is pretty big, bigger than the ZZ4 cam. It will run with the stock chip, but not well. IMO anything larger than the LT1 cam is where you have to start chip tuning.

You don't need to buy new lifters, you can run the stock ones.

JesasaurusRex

iTrader: (3)

How not well? That cam seemed pretty mellow 2 me actually, I know its kinda steep for the 305 but I wanted something that would be great for my future 350, this cam wont be great 4 it just not possible to have one runnable with a 305 and great for the 350, but itll be alright for a 350. Thought it would run fine with the stock computer anybody else think that ill need some tuning as well? How bad do you think itll run?

BronYrAur

iTrader: (1)

I would think that without tuning you're not going to be happy with the results you get from such a cam in your 305. That's a decent amount of duration a lot of lift for a 305 and some guys say not to go under a 112 lobe separation with TBI. I would say tuning for that cam in your car would be a must. Plus, I don't know the specs on your engine now but if it's basically stock I would think that a cam like that would be really restricted by the stock heads and/or intake manifold as well as the full exhaust.

MrDude_1

heh, so how much lift can the stock heads take!?

Chuck!

Wow, weird I was just going to post a Crane Cam im about to buy:

PowerMax 2050
.498/.498 218 218 116 lsa

How about that one? I was gonna do a CC304 but my buddy is gonna give me a killer deal on this one.

JesasaurusRex

iTrader: (3)

I know that this cam will be restricted some what but are you saying I wont see a gain? I mean the TBI cam is just garbage this one might be restricted by heads/intake manifold, but wont I still see a segnificant gain? And how much lift can the stock valves take i was also gonna throw on some 1.6 rockers. Thanks a ton man.

BronYrAur

iTrader: (1)

Don't get me wrong you would absolutely get a gain out of that cam no question about that. But you are going to want to tune it in, that's already a lot of lift you'll need new springs support that lift and most likely need to machine the heads to take that kind of lift and as for the 1.6 rockers I don't know if that would even be possible even with machining, I could be wrong though about the limitations of the head but that would put your lift at like .539. I know some guys have run ZZ4 cams in a 305 so it definitely is possible to run a cam similar to this one but it will take some work.

camaro89rs355

Yeah alot of work