3800 Choose a Cam

[antpearl]

which cam would be best with the mods listed below? Thanks for your help, the info and data is confusing, especially when you're not sure what they're talking about. Is a torque converter necessary? What does it do exactly? Thanks

Cam 1
- Duration at .050 = 201 degree intake/205 degree exhaust
- Intake Lift = .312 (.496 lift with stock 1.6:1 rocker ratio)
- Exhaust Lift = .300 (.480 lift with stock 1.6:1 rocker ratio)
- Lobe Separation = 112.0

Cam 2
duration @ .050": 212º/216º, lobe lifts: .327"/.321", valve lifts with 1.60:1 rocker arms: .523"/.514", lobe separation angle: 113º, intake centerline: 109º

Cam 3
216°/216° at .050"
Intake Lift .317" (.507" lift at 1.6:1 rocker ratio)
Exhaust Lift .317" (.507" lift at 1.6:1 rocker ratio)
111 Lobe Separation

They all look similiar, but they are all different. Do I need better pushrods, I know the springs are a must, but are the rods as well? Who do you recomend those from? Thanks...sorry for so many questions.

Click to read more...

 

[sweetness]

Keep in mind this will be run with a turbo. Overlap is a bad thing.


Torque converter allows you to flash the converter to a certain speed. So you can stand on the brake and hit the gas to say 2800rpm and the tires won't move, but you will be seeing boost. It just lets you get into your power band a lot faster.

BC

 

[imported_Diavolo]

intense has turbo camshafts. You may want to check those out www.intense-racing.com

 

[antpearl]

the turbo is not going to be happening for me anytime soon. I wish sweetness the best of luck in developing a great product and package and I am extremely dissappointed that I can no longer be part of the fun.

 

[iliveonnitro]

Cam 3 and 2 are based more for performance, and will set an SES light. Cam 1 wont, but it also wont get you as much performance gain.

These look like the ZZP one vs the Intense Stage 2. 111 lobe separation will get you the lumpiest idle, which sounds really nice, esp with an exhaust.

3rd one has more overlap (note a higher duration), but not as much lift. The 2nd one looks to be more oriented to use with NOS or some kind of boost, even though I know its somehow advertised for the GT. If you EVER, at all consider running higher ratio rockers (INTENSE 1.75), I would go for the 3rd one, so head clearance is no problem, for sure.

If you're going to run stiffer springs, you need pushrods. Lifter's arent a problem according to Zoomer from ZZP, and he has used stock ones with great results, but I'm only gonna spin my GT2 cam from ZZP to around 6500/6800. Really, its all about what you wont. The 3rd will give you a tad lopier sound (more muscular) with more overlap, and the 2nd one is only lifting .010 and .004 more (but with less duration) but the difference isnt a lot, really. I would guess better gas milage (.1 miles/gallon at most), but really, there isnt a huge difference. Actually, the 3rd may be better on your valvetrain a tad since it lifts less and lasts longer, and can spin up to higher RPM.

If you dont want to go to a higher RPM (stock shift points/rev limiter), probably the 2nd cam. If you want to spin higher (which our motors like to do, esp with stiffer springs), go with the 3rd. My cam w/90lb springs (the 3rd) doesn't really gain a lot of power until 4k RPM, then it totally rips until it shifts at 5800. I cant wait until i get my shift points raised from Charles to 6500, cause the motor pulls so hard, then the PCM forces it to shift .

Also, AOL IM me if you can (iliveonnitro), and ill tell you more if you want.

James

 

[antpearl]

don't have aol....sorry. the cams are in this order - 3800 performance, intense and zzp.

 

[antpearl]

they are all also the '2' cam, or 1x.

 

[antpearl]

ilovenitro you got pm

 

[antpearl]

according to zoomer...his gt2 cam does not need upgraded springs, retainers, etc...any one care to comment on this or is it okay.

 

[Fish]

You would want to at least change the springs and retainers since you have a high mileage car. I was asking Hale about it and he was telling me that I wouldnt be making enough power to need lifters. Pushrods could probably use some new ones. I figure its at your disgression.


BTW, I really dont care what cam you buy me. :lol:

 

[antpearl]

i'm sorry fish....but there seems to be some confusion...it would be very difficult for me to buy the wife a house the kid a swingset me a cam and YOU a cam...its just not possible right now. Plus I donated to the site which means I can't eat lunch tomorrow. try me in 2009, maybe i can help you then.

 

[Fish]

Originally posted by antpearl@Jan 20 2004, 09:06 PM
i'm sorry fish....but there seems to be some confusion...it would be very difficult for me to buy the wife a house the kid a swingset me a cam and YOU a cam...its just not possible right now. Plus I donated to the site which means I can't eat lunch tomorrow. try me in 2009, maybe i can help you then.

:lol: :lol: :lol:

Its cool Brian. Just messing with ya. I gots to find Becky and myself a place to live soon, so I dont think a cam is in my future as of now.

 

[antpearl]

if its any consollation....in order to get michelle this new house, we have to move. We have to move to peoria. So now, I have to find a new job. In order to get a home loan, you have to have a job. so, now I have to find a job, find a house, move, buy a cam, install a cam, yuck!!!!!!! oh, i have until march 1st.

not to mention...looking at some of your new mods, you'll definitely be kicking my ass next year anyway....

 

[Dreamcat78]

dont forget about my car too I hope to be kickin some ass with my soon to add mods this spring hehehe LOL

 

[sweetness]

definitely a good idea to replace the springs. Last thing you want to do is get the whole thing buttoned back up, then find out 5000 miles later that your springs are worn and you are floating a valve. Better to do it right the first time.

BC

 

[antpearl]

thanks for all of the input guys... i will probably be using the zzp stg2 cam...zoomer has been very helpful..So I'd like to give him the business. I haven't yet made up my mind on the springs, lifters, pushrods, etc. Can I use higher ratio rockers with stock heads and that cam? How would that work? Anyone care to elaborate?

 

[Dreamcat78]

I know that GTP's have to use stock rockers..but I dont know about GT's

 

[rob]

Intense stage 2 or 3 is a good choice. Remember modifyed heads means cut down valve guides and stronger springs. You can install these cams in your engine WITHOUT REMOVING your heads. Unless you are getting a port job done.

You need to mill down your guides down .100" to aviod a rocker to valve guide seal collision. BUT, you can use cut your retainers and vitron seals to achieve the minumum safe clearence. Thrasher makes a cam install kit with 130# springs(you'll need),the cut retainers, and I think the gaskets and bolts.

So dont be limited by the "modifyed head" thing. If you have the $$$$ get headwork done. There are guys out there running TEP cam lifts on stock heads.
I strongly recomend a dual pattern duration with a longer exhaust profile and higher ex.lift with unported heads-most at intense are.
Dont go crazy with the cam size if your heads cant support the flow though.

If your driving alot on the street limit your stall or go with the stock conveter. A stall is not nessessary for the cam but will help you launch. Youll have better drivability on the street with the stocker. Zoom zoom is running 11's with the stock 1800 converter.
Some stall con. require a new flexplate.

 

[antpearl]

so, If I went with the zzp gt2 cam, I could use the 1.75 rockers? Or, If i go with any of the intense cams, I can use the tep cam kit which will protect my heads? This really doesn't make any sense...