Does anybody do cams for our cars? I was thinking of possibly putting a bigger cam in my 02 OZ. I don't wanna boost it. I wanna hop it up but stay N/A. I have planned to do CAI, catback exhuast, lightweight crank pully, piggyback ECU(or take it and have the ECU redone by a shop), bigger cam, header, ported intake manifold.

Anybody know if the bigger throttle body actually helps a N/A at all? I've seen the size comparison and frankly I wouldn't believe it made more power unless I saw it dyno proven.

 

what year is your OZ? RPW does camshafts. Just don't expect too much from it.

 

RPW makes cams, and Accolade can get them here for you. Sounds like you have a good blueprint. I'd recomend some higher compression pistons if you are staying n/a. and yes, bigger T.B. helps, so does bored intake manifold.

 

Well.... I know everybody recommends going with the high compression pistons if your staying N/A but I don't intend to take the motor out and strip it down just to put the pistons in. If something happened and I had to take the motor out then I would do that but not until then.

Oh and it's an 02 OZ uranium9v.

Anyway, I was also thinking high performance igntion, bored fuel rail, better fuel pump, and bigger injectors.

By the way how come I wouldn't see much of a gain from a bigger cam? In most motors that makes a world of difference.

 

I hope Mitsiman will be here, because I have one question:

Give a really good reason why I shouldn't be thinking about buying Stage 3 Camshaft.


I already have high compression pistons, and obviously I would get all the breathing mods done but what is it about stage 3 that would make me regret this decision?

 

Well I just did some reading on RPW's website and apparantly when you beef up the cam you are trading torque for power.... atleast with theirs you are. And the higher the stage the more so. So I don't think I'll be going with a cam swap now..... The thing that hurts 4 bangers the most is torque so I'm not sacrificing any torque.

 

thats the same path i'm on 72charger. unless i go with turbo group buy if the price is right. as far as a fuel pump and bigger injectors. that might not be neccesary with n/a. im interested in the whole camshaft thing myself. what kinda benefits [h.p.] does something as simple as a stage 1 give. same with t.b. an i.m. what kinda benefits. thats pretty expensive stuff altogther. what kind of increase does that much get ya.

 

yes you will notice a difference....more so throttle response than anything else. on a boosted car it is much more noticable though. seeing at you plan on staying NA (very respectable) you might want to consider dual or quad throttle bodies (if you are looking to make the MOST power).......as for cam'ing the car-->RPW offers the products and Accolade distrbutes them. but my word of advice to you would be: cam the car after ALL of the breather mods. otherwise you are wasting time and money.

this is why i love your posts.....utterly amazing. i have been asking myself the same question and greatly considering being the first to toy with the stage III. i beleive it's just a really harsh idle and loss of low end power. not sure though.

 

^I'm glad someone has the same way of thinking as I do.

 

I appreciate the assistance guys. But after reading on RPW's website I pretty much have come to the conclusion that you are basically swapping low end power for top end power when you do the cam swap. And the higher the stage the more so......... You definitely can't afford to lose any torque so apparantly aftermarket cams are not the way to go.

 

^ you will find that with every mod. you just need to balance it out....example: ported intake mani, throttle body, and intake will help keep that torque up. it's all a game of give and take. you need to decide what will give you the type of ride YOU want.

 

ummm, you're not really seeing the point with exchanging torque for horsepower. let's look at the horsepower formula:

hp = (torque * rpm) / 5252

say you have a lot of torque down low, say it peaks at 3500. without any kind of variable valve-anything, your torque curve is gonna drop after it peaks. depending on how it drops, the horsepower curve after peak torque is either gonna decrease and stay positive, continue flat, or begine to decrease negative. you basically are losing steam.

now say you trade in torque for some horsepower, you're decreasing the measured torque and moving it higher in the rpm range. what this equates to is higher peak horsepower although the max torque made is marginally lower. a mildly tuned cam might have a smooth power delivery while keeping power optimal overall despite the lower measured torque.

the simple statement trading in torque for horsepower doesn't cut it when the area under the power curve is what counts. depending on what kind of driving you're doing will quide your decisions on what mods to buy by what range of the powerband you want most of your power.

also, you can probably ask about running a turbo cam since it's more likely to make torque in the midrange since the turbo is supposed to fill in for the inefficiency of the top end. on an NA app means more torque and midrange while losing out on the top end. either way, RPW claims the turbo cam makes better power than stock anyhow despite not having a turbo installed. one guy who installed it on his mirage without a turbo said he liked it better than his nitrous.

if you're drag racing, i could care less about 1st gear since you drop at 3k and it's pretty short. when you bust into second, you're a little over 3.5k so that's where i'd want to see more power and have it keep goin up. there's a bit of ignition timing that could be tuned there as well, as a side note.

 

Agreed ^

The thing about the stage 3 cam that Mitsiman says time and time again is that it is made for racing applications where you are going to stay in the upper rpms the whole time. He has said for daily driveability the stage 2 is as far as you want to go.

Hopefully he will come in and expand on this topic to where it is once and for all understood.

WADAD