wot store, stage 2 3400 cam

shawn3091 · 12-04-2008, 12:54 PM

does anyone have a soundclip or video of a car with the stage 2 cam in their 3400? and what lsa it has.

PCGUY112887 · 12-04-2008, 01:57 PM

It's not a 3400 it's my 3500 but it has the 3400 stage 2 cam in it. It should sound very similar. Mods are in my signature. In this video I didn't have a resonator (I have no cat either) but now I have an 18" resonator and at idle it's just a bit more quiet but it removed a lot of that rasp at 1:00 in the video (3k RPM)

http://video.google.com/videosearch?...ix&emb=0&aq=f#

Stage 2 is the 1393 grind here...
http://wot-tech.com/shop/images/Cam/CamSpecs.htm

shawn3091 · 12-04-2008, 05:08 PM

ben said if i want my 3400 to have a lopey idle with this cam i could get it with a 106 or 108 lsa, what would be disadvantages of this and how much would it affect the powerband of the cam?

geldartb · 12-04-2008, 07:42 PM

In a nutshell...

Decreasing lobe seperation:
1. narrows the powerband
2. moves the powerband lower
3. makes the idle choppier
4. makes more power
5. pumps up the midrange

Increasing lobe seperation
1. widens powerband
2. makes the idle smoother
3. takes away from the midrange
4. produces less maximum power

Small engines with big ports LOVE tight lobe seperations, large engines with small ports work better with wider angles between the lobes.

A tighter lobe seperation also allows you to use a slightly larger cam in a lower rpm range. If you want maximum valve timing without revving the engine to the moon, a tighter lobe seperation can make it happen.

shawn3091 · 12-04-2008, 08:59 PM

how big of a difference is there between a 108 and 106, this cam has a powerband of 2000-6000rpm, what would it be with 108 or 106? and the car will be driven alot, would it cause a problem, and how tunable would it be?

Superdave · 12-04-2008, 09:26 PM

you should never buy a cam based on how it'll sound at idle, But keep in mind the more overlap you have, the less idle vacuum and the harder it will be to tune.

Overlap is the time when both valves are open at the same time, measured in degrees. For a daily driven car i wouldn't go over 50-55 degrees of overlap. It'll still make tons of power and be easier to drive around town.

the Stage 2 N/A has 40 degrees with a 110 LSA, 44 degrees with a 108 LSA and 48 degrees on a 106 LSA. A very streetable cam.

We put grind number 1617 into Damon's 3400 sunbird and he drives it daily with 50 degrees of overlap. It made like 224 WHP with a ported top end and this cam. Personally i think it's a better cam than the stage 2 N/A. It makes great power through the RPM's and has a nice idle sound as well.

For referance, mine has over 70 degrees of overlap. Below 2K RPM in gear and it bucks like crazy so you gotta drive around town in 3rd instead of shifting to 4th which kills gas mileage and attracts the wrong attention. Not a daily driver at all.

shawn3091 · 12-04-2008, 09:43 PM

i looked at the 1617 dynamation table and compared with the stage 2 1393 and it does look good, does he have any videos of his z?

Superdave · 12-04-2008, 11:36 PM

I think so, i'll look around for them.

shawn3091 · 12-05-2008, 02:07 PM

i found some of his videos on you tube, when i do this i will probably get that cam, a ported 3500 uim, 65mm tb, do some p&p on the heads, and possibly get headers.

Alxsmt · 12-07-2008, 01:41 AM

i have the 1393, great idle quality and you would never know it had a cam by that. it really comes alive after 4k but not like a spike. overall power is good throughout the whole rpm range

this is the closest thing to a sound clip i have.. everything in my sig.. running rich
http://myspacetv.com/index.cfm?fusea...deoid=43861918