GenVibe - Community for Pontiac Vibe Enthusiasts

This is for you vibe GT owners looking to make more power yes, I actually have them in my hand I picked them up last night. next step is to get them installed and do my before/after dynos. I'll keep everyone updated on the progress and let you know as soon as I have the dynos. Bad news is that this is going to be too aggressive to run on the stock ecu. for comparison this would be like the equivalent of a stage 2.5 cam for the rsx guys. the main focus was mid - low end power with a slight increase on the high lobe.Now, unlike what people have imagined I fully expect to be raising lift and NOT lowering it to make more power. I'm pre-guessing we made end up with lift at around 7K rpms. but this is still just speculation.also here's what the stock specs were actually at....Intake side only:Low - 234 degrees duration, .190" of liftHigh - 302 degrees duration, .265" of liftI dunno if chris wants me to post his numbers til after the dynos cause we didnt discuss that so, I'll wait for him to decide on that.

With a more agressive lower cam, raising lift makes perfect sense. How much are you raising the RPM limit and are there going to be any valve/spring mods going in with the cam?

that will depend on how much power we make up top. valves/springs wont be needed but strongly advised to have if you plan on reving over 8,600 rpms. I will be dynoing on stock valves and springs.

Do you guys have a target range for how much power will be gained? I know that you don't have actual numbers yet on how it performs, but were you guys shooting for a targeted increase when designing the cam?

we are aiming for 15-20 whp

realistically here's what I would guess.....10 whp peak gain OVER I/E power fcand I expect the ENTIRE power band to shift 10 whp higher with mid range gains as high as 25 whp. can't hold me to that cause its just an estimate based on the specs and my experience tuning my car in th past.

Wow, even just 10 WHP would be nice

I forgot to ask before, is the targeted power increase with or without the ECM reprogramming?Also, what kind of pricetag might we be looking at for the cam, installation, and ECM reprogramming? In other words, what might the total cost be to make this thing work right?Thanks for your responses and for sharing this info with us!Psycho--you know, when I first saw something like a 10hp increase, it barely drew a lukewarm response from me. But I wasn't taking into consideration the fact that these cars are much lighter than the big old tanks from the 60's and 70's that my mind naturally uses as reference. 10hp in one of those old battleships probably wouldn't even be felt, but in cars like ours, I suppose that it could make a noticable difference because of the drastic difference in the weight of the vehicles.

expected price is $1100 - $1300 just for the camyou'll need an ecu upgrade. this will run you around another $1000 give or take. then add at least $500 for tuning. worst case scenario - $2800 now as far as gains - peak HP is NOT the only thing to look at.

Quote, originally posted by Lucky317 »expected price is $1100 - $1300 just for the camyou'll need an ecu upgrade. this will run you around another $1000 give or take. then add at least $500 for tuning. worst case scenario - $2800 now as far as gains - peak HP is NOT the only thing to look at. Stang: That's what I was thinkin'...well, before I saw the guestimated pricetag.

Quote, originally posted by Psychobroker »I felt the same way! So much for that idea! I'd rather spend that on a supercharger for 4X the power gain!

Quote, originally posted by Lucky317 »worst case scenario - $2800 Well, yes that's a chunk of change, but at least it should be quicker than a base with a 3K blower on it.

Holy God Almighty! I suspect that there are a lot of coffee soaked keyboards around North America right now! I'm still looking for my lower jaw. It dropped right off my face and bounced under my bed.I hope I'm misunderstanding something here because this seems like one of the most overpriced performance mods I've heard of yet. I know these engines aren't cheap to tune, but man, that a lot of loot to drop for 10WHP. A $250 CAI can produce the same gain as dyno tests have shown.I'm going to go back to the old battleships for engine buildup, I think. A $100 cam and some free-flowing heads that can be located in a junkyard and refirbished to better-than-new condition can give a small block Chevy V-8 an added 100 HP for a fraction of the cost, and I can do most of the work myself. Wow!

I'm still wondering how much a port & polish of both I & E headers would cost...that alone should help a ton and SHOULDN'T be too expensive.

you will be lucky to hit 5 whp with that and you need to learn the difference between peak power and power across the whole power band.

Quote, originally posted by Lucky317 »you will be lucky to hit 5 whp with that I believe that to probably be true. From everthing that I've read on it, the stock manifolds are pretty free-flowing. Probably not much improvement to be made there.Quote, originally posted by Lucky317 »and you need to learn the difference between peak power and power across the whole power band. That is why the quarter mile times will be so important to judging the value of this mod. It's difficult to grasp this concept by just looking at peak HP numbers. I don't claim to understand all this yet, that's why I'm here reading this and asking questions.

imagine at any rpm having 10 more whp and some areas having 20 - 25 whp increases. that's what I expect it to be like. it's like going from stock to I/E x 2

Quote, originally posted by Lucky317 »and you need to learn the difference between peak power and power across the whole power band. Is this aimed at me? If so, I can tell you that I do understand the difference...I believe it was someone else who compared the estimated 10whp gains from this to a simple I/E mod. While it's true I/E will increase your peak WHP, potentially by 10whp, I understand that this cam will SHIFT the entire powerband upwards...never said I didn't understand this. Thanks for the info on the port & polish...any idea what it would cost on our 2zz's?PS Do you guys remember Dimitri? He P&P'd his headers and showed some gains...I'm NOT sure if he posted a dyno though.Quote »imagine at any rpm having 10 more whp and some areas having 20 - 25 whp increases. that's what I expect it to be like. it's like going from stock to I/E x 2 That's exactly how I understood it to be, and that would be awesome...I just don't know if it's better than installing a turbo kit instead. Although, I'm sure they'd work together even better, with upgraded internals of course.

Quote, originally posted by Psychobroker »PS Do you guys remember Dimitri? He P&P'd his headers and showed some gains...I'm NOT sure if he posted a dyno though.actually, he claimed a 1/4 mile in the 14's becauseof the p&p, but when asked where a time slip was, he said it was lost. the bs flag went up and he disappeared.

^^ that was aimed at the I/E comment lol well, the price of these may be reduced. he's gonna wait for the dynos to get done before he makes the final decision.

Quote, originally posted by drunkenvibe »actually, he claimed a 1/4 mile in the 14's becauseof the p&p, but when asked where a time slip was, he said it was lost. the bs flag went up and he disappeared.Ahhh, that's right! Ok, nm then Lucky: Thanks for keeping us in the loop