samiam91RS

is there any cams out there that we can put in our 350 TPI's? nothing too aggressive or outrageous something wit a little more lift. also, would i have to do anything with the ecm or anything if i do this? i wanna cam my 350tpi to give it more power while its completely out since im doin my swap right now. thanks all in advance!

joeblue83

iTrader: (8)

I use to have the ZZ9 camshaft from TPIS. It gave me a little more power and had max lift for my heads. I still maintained 24 mpg

samiam91RS

well thats not bad at all! so i can throw this in and not have to worry about tuning? at least it fits. how much power are we talkin? just a tad bit?

thanks!

Saculia

iTrader: (1)

You can also look into comp cams 08-501-8. However, you should consider replacing the valve springs when ever you consider upgrading the cam, and also making sure that all clearances are met. It is worth the extra few hundred bucks.
Plus, whenever upgrading the cam in a TPI it is always a good idea to re - tune the computer, even if the cam you are putting in is computer compatible. It is the only way you are going to get the most out of the cam upgrade.

samiam91RS

right thats what i was fond of, but no clue as to tuning the computer. i may have to take it to someone (as much as i hate to) to tune it, but im sure it will be worth it. i just dont know where to take it to get a tune.

Saculia

iTrader: (1)

The car will run with that cam with the stock program. However, it will not run optimally. You will gain a ton by getting a custom chip burned for it. Usually any place that does LT1 and LS1 tuning should be able to tune your car. You just need to look around. Mail order chips don't really cut it. This needs to be accomplished by doing real time data logging while the car is running under load, and using wide band oxygen sensor to tune the ECM.
Your fuel economy will also improve alot after a tune.

Kevin91Z

iTrader: (1)

Now you do know someone. I do all the tuning for the cars in the SoCal Thirdgenners.

samiam91RS

well your the man then! lol. im gonna cam it (zz9) and then i guess we can work something out. would i have to actually drop it off with ya? just wondering how your process works, thanks a mill

samiam91RS

i just pulled up the zz9 cam and its almost 4 big ones! didnt know it would be that much ive seen dozens of cams range from 150 -200 wtf happened here?

Saculia

iTrader: (1)

Before throwing in the zz9 cam, you need to make sure that your heads will support it, and consider what supporting mods you may need to consider. I don't know anything about your 350 heads, but one thing you need to consider is that the lift you are making should not exceed the lift at which your heads will have maximum flow. If they do, you may experience a loss in performance rather than a gain in performance. Another thing to consider is your intake and exhaust durations with respect to your intake and exhaust port size. I don't know how this relates to your 350 heads, but generally speaking, I have noticed that the duration on the exhaust side of most TPI roller cams that I have seen has been larger than the duration on the intake side. I believe that this is to make up for the smaller exhaust ports, at least on the 305 TPI heads. If I am correct, the zz9 cam has 226/216 intake/exhaust duration.
I am by no means an expert, but I think that these things should be considered before throwing a bunch of money on a camshaft. Anybody that is more knowledgeable in this area please, feel free to step in and shed some light on this matter.

Kevin91Z

iTrader: (1)

TPIS is very proud of their products and charge the most for them.

You can find them used for less.

A ZZ4 cam from GM is almost the same and goes for about $200 new and $50 used.

What heads are you using?

samiam91RS

ha yea i saw that for sure, the heads are stock 350 tpi heads not sure what the specs are on them but i should have valve clearance with stock should i?

oh, 200 isnt bad at all so i can go to GM and order a new one from them?

Kevin91Z

iTrader: (1)

http://www.sdpc2000.com/product/1018...rCamshaft.aspx

Here's your part number and price from Scoggin Dickey. Ignore the part about "not for computer engines", it works just fine.

Dyno Don

iTrader: (7)

Sorry, but that cam won't work with stock heads without machining.
Or Manley springs and retainers.
Max lift is .460
That one is .474-.505 with 1.5 rockers
The ZZ9 cam is 212-224 @.050 .495-.510

samiam91RS

hmmm which cam are you saying? the zz4 cam? or the comp cams 08-501-8?
this is a bummer i guess i cant cam my 350 unless i get a set of heads but i dont know which ones go with the zz4 cam.

samiam91RS

ok i did some research and i might just go with this comp cams 12-388-4

its got .425 lift and .440 exh

so it should fit my stock heads and it says for TBI crossfire and TPI engines, 350 and all that.

if someone says this isnt gonna work im going to punch a hole in this computer screen!

Kevin91Z

iTrader: (1)

That Comp 12-388-4 is a flat-tappet cam. Do you have a flat-tappet engine or a roller-cam engine? Roller cams are better and are worth the extra cost.

Don, even with the Manley stuff you cant use a .500" lift cam with the stock heads? Oops, I guess I have been giving out bad info.

samiam91RS

wow i thought they were all hyd roller. hmm well i guess im screwed. ahhh i dont even care anymore on a cam. if anything ill just call em and tell em what i got maybe they can grind me a cam for my stock motor and heads.

not to mention at this point i need to get my messed up wiring harness FIXED so it can work before i think about a freakin cam. thanks for the info even if it was wrong right, lol.

Dyno Don

iTrader: (7)

Yes you can use the Manley springs and retainers, that is what I was saying.
But why put a .500 lift cam in a grossly junk heads?

So, put in the ZZ4 cam and use the Manley setup.

samiam91RS

ok i see well i can go with this set up, and i understand about the heads but ill just go back in there and get some AFR heads or trick flow. something better. i just wanna cam it while its out, i can always work the heads from the top even though the block is in. thanks don. oh one more thing, the stock 350 heads are L98 correct? thanks again