I have full bolt ons, tune, and running E47. Just wondering if the cams would be worth the power for the price. Feel free to give me your advice.

 

Taken directly from their website

"The following dyno graph shows a comparison between the factory fuel pump lobe and our larger fuel pump lobe. Both tests were run on E85 fuel with no tuning changes. The only difference between the pulls was the addition of the ZZP fuel pump lobe. Peak horsepower increased from 395 to 474 and it was still climbing when the test was shut down! This shows an increase of more than 20%, and these gains can be had for a fraction of the cost of other options."

Not sure what mods they had on that tho. But for just swapping a cam and gaining 80hp...thats pretty good


"

 

I just wanted to hear peoples opinions.

 

do iiiiittttt

 

I have the cams - so here is my 2 cents..

-Get the cams if you decide to do a Engine Overhaul or an all out Big HP/TQ build.. (investment)

-Don't get the cams just to gain a 20% bump in HP and not use the motor to it's fullest potential (drag racing or auto x).. (loss)

I got the cams to build out the motor over a period of time [1 year], I've learned in the past rushing into an engine build, can co$t you BIG.. Without a goal & planning what you want in the end, will prevent bigger headaches later down the road..

My goal 700+ HP/TQ setup for Street drag and some Auto-X..

 

^that^ is some good opinion

If you are just looking for some extra power, there is better ways. But if you have a larger goal/build in the works, then they are a good choice. At least thats my view point.

I plan on getting them when i build my motor..although my goal isn't 700hp, i will be using these to break the 500hp mark

 

Im still tossing around either the cams or the 5th injector kit.

My car is built, full boltons, e47, pte 5857 turbo

 

You are extremely delusional if you think you are going to AutoX a 700hp FWD car.


I say get the cams. Power is power. You don't need a built motor to enjoy them. I do have a problem with the results that Fross posted. I have a feeling they did more than just toss those cams in. I'm sure lots of tuning was done.

 

id say cams. its more expensive but i would have to say its a more dependable option

 

Alright, let me chime in.

I just want to say that though cams are great your not going to get much or any difference on the stock turbo. Flow in air is almost the same as stock cams. Now adding porting and a larger turbo could yield you more of what zzp advertises the cams to give you but on stock turbo, its not worth it IMO. I'm currently logging my car with stock turbo and different tunes to see if any benefits are possible, I see none so far until an actual engine and bigger turbo. I'm going to see if I can dyno again and see if it makes the same or more than the numbers i made on stock cams.

 

I like dis post

 

just wanted to clear up some things, in the info posted was the data from zzp's 256 turbo not a stock turbo car. Here is the link to the info with the stock turbo, and yes there were significant gains. https://www.cobaltss.net/forums/2-0l...esting-233589/

They made about 30 more wheel on gas from stock cams to their cams (332 stock) to (362 stg 1 cams)

The price of the cams is pricey to some because you need to do springs and retainers as well. But the cams are basically an upgrade that will give you a significant power gain now as well as in the future with more work.

lol i'm sorry i can't take these post about racing anymore on this forum

 

Hmmm.. According to 40rty, there are no gains.. I tend to disagree, but I have a ported head with the cams on the stock turbo and although I don't know my exact gains, I do know that I can hang with a C6 LS3 now from a roll until 140 mph.. I was in fact 1 car length ahead of him until I hit 5th gear and then his top end took over, he caught up and would've passed me but traffic was coming up fast anyways lol
The car isn't even fully tuned yet.. still getting 3 degrees of knock midrange and 1 up top.. once that's fixed, it should be even better. The car ran 13.2@110 last year.. I expect 12.7@114 this year (and on street tires btw.. otherwise, might be able to bang off a low 12)

 

I though being extremely delusional is a good thing..

 

Maybe so!

 

I can dyno, provide my data logs. I'm very curious to see a dyno and logs with your ported head. Can you do that this week?

 

I don't have cash right now to go get a dyno done or know anybody who'd be willing to throw me on one haha. Otherwise, I wouldn't mind knowing myself. Unfortunately, you're in the Usa.. I'm in Canada :P No way I'm driving 2500 miles for a dyno
Maybe if I'm down that way this summer, I can let you know.

 

I'm in for more info..

It would be nice to know:
- if the cam lobe profiles needs to be more vs less aggressive profile [narrow vs wider] to achieve all round HP & TQ gains but it's based on,
- if the porting work needs to be less or more aggressive [less vs more material removed] to achieve dynamic flow both for the intake and exhaust..

there has be a balance or sweet spot for both to work in harmony..
- too much material removed in the head lowers the torque output [high & low range] but the mid range isn't affected as much..
- too little does the reverse, the mid range is greatly affected to the point where the high & low range evens out and output is slightly increased but not as much..
- what's also affected is, what area in the head should be touched and what shouldn't be touched..

 

did you read the link i posted to the write up???
the increased cam lobe is needed to run full e85
but for regular 93 octane you don't
there were gains like i stated 30 whp by zzp on there car, not sure what was done to the motor but the turbo was stock

 

I think with just pump gas, no lobe for e85 no ported head it was only 10- or maybe at most
15 hp with the cam and stock turbo Matt had said.

 

i just read through the few last pages i guess the actual production cams put out less than the prototype cams, which makes sense since the s1's are pretty mild

 

Im running full E85 with the larger cam lobe. Hopefully i can get a dyno session after work. On E47 i made w357whp 409wtrq stock cams on a dyno dynamics, lets see what happens with this setup.

 

Do Work.

 

I bet if you have the 4.45 gear the vet won't be able to pass you in 5th.

 

Lol ya maybe.. but he'd still top out higher than me :P