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Topic Review (Newest First)
09-17-2012 12:54 PM
sgtsmasher Thanks for the advise iminhell, that helps me decide weather to keep them or not...i was just worried that if i put these on the car that i would screw something up really bad, i would like to have these set up for the best results, but without a dyno i wont get those results which sucks. I wish there was a how to that gave a better step by step
09-13-2012 10:52 PM
iminhell
Quote:
Originally Posted by sgtsmasher View Post
im still lost on the whole how to actually tune them though. i mean i know you guys said to get them dyno tuned for best results.
what if i dont have a dyno to adj them correctly?
Then it'll be trial/error. If you can data log should help to verify your butt dyno. Watch for increases in load and air flow. Make a few different logs at the same settings and average them. Should reduce the error factor of a single WOT log.

Quote:
Originally Posted by sgtsmasher View Post
would i just be screwing myself in the long run if i just took the stocks off and threw these on and tried adj them that way?
No.
You can run the gears in any location you want with no damage. [b]But it is the best idea to turn the engine clockwise by hand after major adjustments to make sure nothing's binding.


Quote:
Originally Posted by sgtsmasher View Post
with the 5 bolt design do you loosen them up move the gear then tighten them again?
Yes.
Loosen the 5 bolts, use the center bolt to move the cam gear and hold it in place if need be, tighten all 5 lock bolts, then go back over then a second time to make sure you tightened them.
The bolts don't need to be gorilla TQ'd. Nice and snug is all you need, best guess, about 20 ft/lbs.
Over-tightening them will result in stripping the threads. And FWIW, 2 bolts still holds the gear in place,,, ya, I've stripped a few
09-13-2012 07:54 PM
sgtsmasher i just wish that i knew of a dyno around my area or in maine that i could get on
09-13-2012 07:11 PM
sleepyboy Dyno tuning them means going to a place that has a dyno and running the car to get a base line. Then adj the cam gears a little then make some more pulls. You keep doing this over and over till you find the optimal settings. Should take less than an hour. Most shops charge hourly for dyno time. Cam gears would be a good step in the right direction with all the mods you have now. With my cam gears dialed in on my stock cams I gain power everywhere. My car used to fall on it's face after 5k rpm to rev limiter, after the tuning I could pull all the way. But the over all power band was much broader with tq everywhere. Really made the car a lot more fun to drive.
09-13-2012 05:43 PM
sgtsmasher im still lost on the whole how to actually tune them though. i mean i know you guys said to get them dyno tuned for best results.
what if i dont have a dyno to adj them correctly?
would i just be screwing myself in the long run if i just took the stocks off and threw these on and tried adj them that way?
with the 5 bolt design do you loosen them up move the gear then tighten them again?

im just such a noob when it comes to the tech stuff, i mean i could throw parts on this car all day and not have any idea how they work or how to use them.

for mods as of right now i have:
svt header
ebay CAI w/ K&N filter
65mm CFM TB
full 3" from ORP back magnaflow exhaust with high flow cat and res
pretty much a race tranny w/ 406 gears-LSD-LW flywheel w/ some stg2 clutch
svt brake kit front and back
toms tune which included egr delete, rev limiter increase, and some others maybe idk

soon to come will be wide band A/F gauge
maybe a short throw shifter

so its not like the car is no stock by any means i just would maybe like a little more out of this thing before i kill it lol, but idk how to do this
09-13-2012 10:10 AM
cfmfocus2 I have seen the cam timing vary a good amount as sleepyboy noted on the zetec engines. It does help a vehicle with stock camshafts if it off a good amount from factory. The article noted by sleepyboy shows a good example of how much cam gears can help by, which is a good amount.

Adjustable cam gears are a most for anyone look into aftermarket camshafts. There any many companies back in the day that used to offer cam gears for these cars. We are one of the few that still do. Link to cam gears
09-13-2012 02:54 AM
sleepyboy My turn to add my cent's


I had adj. cam gears on my stock cams with fantastic results after dyno tuning. With my butt dyno I was way way way off. Also you can't just say put the exhaust cam to this and the intake cam set to this. It doesn't work that way on a zetec, maybe a honda where the cam gears are indexed to the cam with key ways. On a zetec the timing can vary greatly between motors. Here is a link to Sport Compact Car's project focus they had way back in the day when they were around HERE. You can see that the gains from the cam gears and other mods. In my opinion cam gears are worth it, but only worth it if you get them dyno tuned. Now if I can only afford to get my cams I have now dyno tuned again
09-12-2012 08:25 PM
iminhell A dyno tune isn't the best option either.
With no changes at all I've made up to 5hp difference with my car on a dyno doing back to back runs.
The 0-100hp differences you see in dyno's can easily be attributed to error, or margin of error.
It's something that has to be taken into account at all times.
09-12-2012 08:21 PM
steeda423
Quote:
there is no way to advise someone on what is best practice for cam timing

You're right this was my advise..

Quote:
But you have to do it right and have a dyno tune.
09-12-2012 08:10 PM
iminhell
Quote:
Originally Posted by steeda423 View Post
Cam Gears do improve power even with stock cams. If you've upgraded the intake and exhaust you will get even more power. But you have to do it right and have a dyno tune. So this should probably not be done til you've got all the other basic bolt ons.

If I remember correctly the zetec works best with 0 degree adjustment on the Exhaust Cam and almost -5 degrees on the Intake Cam.

Please quite posting that engine picture with every post you make.





Cam degrees/bold text - Vs what?

All and I really mean all of the dyno's, literature and talks about what cam time makes the best power or move what to where are purely opinion.
It's well known that mechanical variance from the factory can result in cam timing being off slightly from the factory. And to illustrate what kind of tolerances I'm talking:

Crankshaft Degree - Piston Movement in Inches
1 ....................... 0.000349"
2 ....................... 0.001396"
3 ....................... 0.003141"
4 ....................... 0.005582"
5 ....................... 0.008719"

Now keep in mind that 1 crankshaft degree is equal to 1/2 a camshaft degree. Or in other words, on an assembled engine if the cam timing is off 2 it will result in the piston being 0.000349" off where it should be.
The numbers make it look trivial but when at speed everything matters. Variances are compounded as piston speed changes throughout the stroke.

What I am saying is that W/O there being a set standard for factory timing alignment there is no way to advise someone on what is best practice for cam timing.
Now if we had factory cam gears that had pins locking the cam gears in place we could say '+2 intake and -3 exhaust will make more power above 4,000 rpm'.
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