Cam Info

[plan Z]

i'm thinking of putting a different cam in my 94 z. just wanted some opinions on what kind i should get and also lifters too. should i change anything else when i do this? i just dont know what size to get. all i basically have done to it is intake and exhaust.

[Smokn '94 Z]

Do you have to pass emmisions? Do you drive the car all the time? (Dialy Driver) How far do you want to go with the car? There are a lot of questions you have to ask yourself. If I didn't have emissions I may have gone bigger then my Hot Cam. If your running stock heads then a Hot Cam would be your best bet. Just my opinion. You have to decide where you want to go & how fast you want to go. :burnout: :heads: :unitedsta

[86RedRocket]

You can reuse the stock lifters if they pass a good inspection. Roller cams have a lot less wear and tear on both the cam and lifters. Do you want to reprogram your computer on the car and are you going to get some port and polish work done to the heads?

[plan Z]

it is a daily driver and no, i dont have to pass emissions. the heads are stock and i wansnt planning on doing any head work. (by the way how much would a port/polish job on the heads be average?). i wasnt planning on reprograming the computer either. i want it to be reliable still, not totally extreme or anything. is a hot cam considered a roller cam?

[Smokn '94 Z]

Originally posted by plan Z
it is a daily driver and no, i dont have to pass emissions. the heads are stock and i wansnt planning on doing any head work. (by the way how much would a port/polish job on the heads be average?). i wasnt planning on reprograming the computer either. i want it to be reliable still, not totally extreme or anything. is a hot cam considered a roller cam?

Yes it is a roller cam. Also you will need programing with any cam. I know a lot of people say that you can get by without programing with some cams but for optimal gains it should go hand in hand. www.pcmforless.com has a good, cheap mail order program. Also a good head job will cost you more than a $1000 bucks. My heads that still are not on the car are over $2000 bucks. :throwup:

I think you would like a Hot Cam. Or CC305 Cam. They do give noticable gains while still retaining drivability.:heads: :lifters: :microwave

Are you going to install the cam or have a shop do it?

[v8worshiper]

i have a 94 Z. I bought and installed a new cc306 cam in january. I didnt have to replace anything other than the gaskets. The lifters had virtually no wear after 100,000 miles, didnt believe it. It is a good idea to reprogram computer and replace rockers with roller rockers, but it is not immediately neccessary. I would say that the cc306 is a very "heavy" cam being that it has a very rough idle at 700 rpms and the car lurches back and forth at 45mph in overdrive, but has superior top end torque and sounds awsome. the only problem that i have experienced it that it takes about 10 seconds of cranking to start, because the computer has not been reprogrammed, but it starts every time and runs strong as hell.

I would reccomend a cc305 for something a lil less aggressive, but the myths about the cc306 being to big for a completely stock engine is totally wrong. good luck and happy cam shopping.

[86RedRocket]

Check out part# CCA-07-501-8 in the Summit catalog. It's the biggest Comp cam that can be used w/o requiring the computer to be reprogrammed.

[plan Z]

well, programming is something i guess i would do when i change it. would you suggest the power programmer? I've seen the detailed instructions on how to change the cam and i believe i would do it myself rather than have a shop do it, but the only thing i'm not completely sure about is changing lifters or rockers. how hard is that to do on these cars? i want to do it all at once. oh, and how would the 305 and a hot cam compare to each other?

[Smokn '94 Z]

Originally posted by plan Z
well, programming is something i guess i would do when i change it. would you suggest the power programmer? I've seen the detailed instructions on how to change the cam and i believe i would do it myself rather than have a shop do it, but the only thing i'm not completely sure about is changing lifters or rockers. how hard is that to do on these cars? i want to do it all at once. oh, and how would the 305 and a hot cam compare to each other?

Don't waste your $$$ or time with the programmer. I did & it did nothing for me. www.pcmforless.com is the way to go for a program for either the cc305 or Hot Cam. As far as the lifters & RR's go, it is pretty straight forward on installing them. Your stock lifters might still be o.k. I am still on my stockers & they have 86,000 miles on them. If you do get new lifters then the Comp 850-16's are a good replacement. Or you can spend a bit more for the Comp 875-16's. When you re-install the lifters you can soak them in fresh oil to get them loaded up. The hard part for most is setting the valve lash. You may want to get a good write up printed for you to follow the instructions.
Now for the comparisons of the cc305 to the Hot Cam. They are virtually the same in performance. I highly doubt there is a real streetable difference to be noticed. All I know is my Little Hot Cam'd Z is running stronger then a lot of people ever thought with stock heads. Even me...:)

Good Luck..

[LT4SS]

I have just completed putting in a hot lt4 cam in my car and it does very well as a daily driver and on the track!
Cam specs 114deg center lobe dur 116deg lift .525 .525 EXT,INT
you have to use 1.6:1 ratio rockers to get these specs( self alining)
you can use your older lifters if they are workable and in good shape it would be wise to replace your timing chain gear set with
a new set , with a GM performance heavy duty roller set
because with a new cam and rockers you will put more stress on your timing chain and with to much slack in the chain
it could brake if you jump on it real hard.
I put the cam and rockers and chain with new lifters and noticed a big boost of power on the range of 35-40 HP in some cases
you may have to program your cpu to handle the cam.
But the hot lt4 cam is the biggest cam you can use with out a big
computer reprogram.

LT4SS

[Steve n Seattle]

- LT1_Edit
- cc306
- $600 port/polish job

The only 2 cam's I know of that can be plugged in without a PCM reprogaming to make idle ok, and both won't affect idle that much would be the LT4 Hot Cam and the LPE 211/219. They both can "get by", but a tuning will get you an extra 10 to 20 poines from the LT4 cam and clean up the idle a bit if you do it right.

If you port/polish the heads you NEED to reprogram the PCM. LT1_Edit if you want to the have the tools and fine tune it, or pcmforless if you just wanta get close and make it run street duty. :) (Stay away from that Hypertech crap unless you're only doing gears or A4 shift changes).

Good luck.

[rich]

just installed the zz-4 cam[standard cam for the zz4 crates]in an auto appl.not sure if your running a stick or not.i swear by that zz4 stick{i have run a lt4 hot cam & buddy had the comp 305}the hot cam had a rougher idle and it sould its ground on a 112 lobe sep. than the 305 comp.114 lobe sep.i got my zz4 cam from sallee chev in oregon for 100.00.thats a deal!oter than gaskets i wouldnt change a hole lot.

[PoorMan]

Hotcam or comp cams XE 224/230. Those seem to be better choices if you like the rumble. My neighbor has a CC305. Not much different sounding from stock but his blower whine is all I can really hear anyway. ;)

[86RedRocket]

Originally posted by PoorMan
Hotcam or comp cams XE 224/230. Those seem to be better choices if you like the rumble. My neighbor has a CC305. Not much different sounding from stock but his blower whine is all I can really hear anyway. ;)

Have you or anyone you know used that comp XE 224/230 cam? If so, what was all done to the car and how did it compare before and after? Thanks.

[PoorMan]

Installing it now. Mods in the sig. Read a thread about two guys that were both on the same forum. One had a hotcam w/ 1.6 rr the other had the xe224/230 will 1.6 rr also. Both were stock heads, similiar exhaust, ect. The xe car pull away from him every time. I have a couple of videos of that cam with Jet hot long tubes if you want them. With my mods I am expecting around 380 rwhp. I have seen many post of people with the hotcam kit with sometype of shorty header and stock heads making around 330 rwhp.

Jeff D.

[86RedRocket]

Do you know a guy named Jason that has a 96' green z-28 w/cam, heads, bolt-ons, etc. That car is pretty impressive for the amount of money he has in it. He knows all the people over at B&M Race Cars in Bossier City.

[PoorMan]

Never meet him. Ran into him at camaroz28.com once though. Can't remember what he had in the car. Thinking it was NA with cam, heads, ect. I do most of my own work. I did have B&M do my gear change though. They didn't know about the 2-series carrier having a different reluctor ring than the 3 seriers one. They swapped my carriers out and my ABS Inop light been on ever sense. I bought the ring months before the change out and I forgot to bring it. I am looking at another labor fee now. bummer.

Jeff D.