NJHK

N/A or Boosted, I've had no problems with the stage 1s from JBP.

NJHK

slowion is correct.

When I original gotten my stage 1 camshafts, gain was decent but I had terrible top end power. Why? A/F ratio was too rich. Computer didn't know how to comphensate fuel properly so it just gave too much fuel (which is a common thing with our computers...they love to run rich). Stage 1s aren't aggressive at all, rather a mild camshaft. It all depends on how your computer reacts to it. Because of this richness issue, I bought and dyno tuned my car with an SAFC-II. Problem was solved.

Responding to what you just said about installing them and running fine...

You can put camshafts in a car and everything SEEMS fine but without any type of instruments telling you how your car is running percisely, you're not gonna be able to tell that your car is slightly rich or slightly lean from everyday driving. Trust me, you wouldn't be able to tell if your car is running 13.5 or 14.0 from driving it.

Also, the term "computer friendly" usually has to do with valve overlap at idle. Alot of overlap at idle in some cars can cause some sensors to freak, like your knock sensor. Computer friendly has nothing to do with fuel mixture.

NJHK

The cam towers might actually be the same. Contact JBP and ask them.

NJHK

Bingo Bango!

NJHK

There is something different about the head but I want to say it's more of a port size difference than anything.

redlineblueline

I figured but I didn't see on JBP any figures like you do on Injen or an exhaust, where they quote you with a rough gain.

player_1

no I don't have any of the GM stage flashes, I'm going to have the car dyno tuned with HP Tuners.

people how are just getting the GM Stage 1 are gaining at least 20-25 HP and about 30lb torque.

with my untuned car I gained 12WHP until the bypass kicked in, and cut my boost. and I gained just over 19WHP, when I ran the boost by-pass. and that is at a 6500RPM limit

so it it not unreasnable that I expect a 50WHP gain, on a good tune with my larger ingectors, and my increased Rev limit set at 7500PRM.

I know that HP just can't be added like that, but keep in mind, that the car cannot provide enough fuel for the cams alone already which is why the by-pass valve is set to bleed any boost past 15PSI

player_1

JBP gives you all the specs for their Stage 1

Duration @ .050*, Valve Lift
INTAKE 193*, 439 EXHAUST 197*, 442

their Stage 2 is kept secret, but again, I don't know if they can be used in the 2.2L you'd have to talk to Mev at JBP

NJHK

Those gains are either

1. Gimmicks to ploy you in

or

2. Someone who had your vehicle who dyno'd that # BUT it wouldn't mean you would gain the same amount of power. Each motor reacts differently.

NJHK

I understand what you're saying but you have to understand that larger injectors in itself aren't what's gaining you power. Larger injectors are only useful when the demand is needed. If your slightly smaller injectors are able to spray the demanded amount of fuel without over stressing them, then you're fine. It's the actual adjustment or tuning in itself that will gain you the power you want. Even with that said, there is a huge difference between 19 or 20 WHP and 50 WHP with camshafts.

How do you even know your car is badly tuned at this point? Do you know what your a/f ratio is currently under wide open throtte? You could be spending all this money on parts you don't need just yet.

Also, spinning your supercharger up to 7500 RPMs...personally...don't think it's a good idea for the sake of heat soaking and for the sake of the rest of your valvetrain system might not be able to handle that fast of revving.

glockglade

I read your sig and If you replace your valve springs and all that good stuff you will have one bad ass fast cobalt.

player_1

I was just about to tell NJHK to read the SIG for my upgraded Valve train.

and no my stock injectors are not enough for the Stage 2 cams. the reason why I don't drive withthe boost by-pass mod on, is because the car is running dangerously lean at high RPM. which is the whole reason the by-pass valve bleeds the boost after 15 psi.

in the GM stage kit, that limiter has been moved, to where I don't know.

and I need the injectors because I'm going to use a smaller pulley as well, hopefully with the combanation of my moods I'll be up around 290WHP.

they guy's at INTENCE are predicting me breaking over 300HP, which is why I think I may switch to a larger Pulley

redlineblueline

I ment HP/torque gains.

player_1

Oh
I think Spooler made like 10WHP peak with his stage 1.

NJHK

The leaning issue isn't an injector issue, it's a tuning issue. Because you're reliant on pre-set reflashes from GM, comphensating air over what the computer is programmed to read on top of having boost pressure, the computer won't know how to sufice enough fuel for air.

Why would you want a larger pulley? I don't understand where that is coming from...

What do you call dangerously lean? Can you give me an a/f ratio #?

player_1

I ment a larger pulley then the 2.7" originaly planned on. I probably going with a 2.9"

I was running at 14.2 when the by-pass kicked in at 5500RPM
I never got it cheaked with the by-pass mod done.

but again the larger injectors are mainly ment for the increased RPM Limit, and smaller pulley.

although I doubt that the stock injectors would provide enough feul for the tuned cams.
but then I'd save some money and get the 42lbers. I just skipped that step because I planned on doing more.

NJHK

Understand.

player_1

yah these tri-flows are pretty cool set of cams, I only lost a little power from 800-2800RPM but after that it is a steady increase in power.

what a little more confuesing is that I'm atually makeing more boost with the cams. I was like WTF isn't the car supposed to breath better and cause me to loose boost. but thats not the case.

here's my Dyno:

click the sheet at the bottom of the page

IonNinja

whats with that big dip in power just before 6K? did they cut the dyno short or what? everything looks good up until there...

player_1

thats when the By-pass valve opens up and bleads all my boost.

I did a dyno after that wit the by-pass mod I got to 223
I don't have the dyno sheet or AFR, for that run

Wyoming_Bass

I am gonna order the stage II cams from turbotech my programs SHOULD be in from HP Tuners in a couple weeks so all of it will go in at once. Ill let everyone know how it does. I will be doing a Dyno run after all that goes in!

Clmbngfrk18

hold on hp tuners?? did they release for the 2.2? did i miss something

IonNinja

yeah what programs?

Wyoming_Bass

My buddy (the guy who has givin me his injectors and such) has spent a massive amount of money in the past with them. They are gonna get into the 2.2 computer for him, so we can tune my car. But hey remember im the ******* with the SS badges on my car. I will however let you 2.2 guys know whats up when i get mine tuned with the cams and bigger injectors in.

He had problems with them not wanting to mess with the Alero and he just put it to them i have spent money (over 10k) with you and your not gonna support my alero? they did this was a while ago now he has his SS/SC and I have my lil 2.2 so he said the same to them and they are gonna do it like they did with his alero.

IonNinja

so they've actually got the resources to release this for us and they're just holding back?