cam-gods unite >:D

[gingerbredman]

I honestly don't expect any answer on this because apparently either no one has/plans on messing with their cams.

I'm sure you guys have heard about the "dual-exhaust" cam setup on the ka24de. Well, it also says you need to rotate the swapped exhaust cam 4 teeth counter-clockwise. When I did mine way back when, I simply swapped the exh. cam in, didn't rotate it any. I drove a good 20k miles like that with no problems, besides the powerband sucking..

I haven't had the cam 4 teeth ccw so I don't know exactly what difference it makes( but simply dropping the exh. cam in there makes a mad tyte lope).

So, I drove thousands of miles, occasionally romping it, with the cam FOUR friggin teeth off, so why couldn't I simply rotate the cam only 2, or 3 teeth cw instead of 4, and have my power pick up before 5000rpms?

I know that rotating the int. cam ccw will move the powerband up, as I've got my stock intake cam 1 tooth ccw. Picks up around 3500, but I really need a tune-up. Gas mileage has picked up considerably, I suppose because a cruising speeds the engine isn't sucking up as much air, therefore not needing as much fuel.

I'm trying to plan ahead for when I turbo the ka, I mean more volume up top will mean better efficiency for the turbo. bleh, I've been poking at this subject for forever and no one has so much looked.. you guyz are wierd i'm going to sleep, tired.. _-_zzz leave me stuff

[gingerbredman]

<sigh> I reckon I'm on my own with this.

[ultra apostle]

<sigh> I reckon I'm on my own with this.

I wish I could help you dude, my brother is in the process of doing a t-chain job and a exhaust cam swap on his. Maybe we can figure something out. lol

[gingerbredman]

Yeah, so far with the stock intake cam 1 tooth CCW the mid/upper mid-range is lot better, plus better mpg's, but I'm thinking about doing the dual exhaust cam setup again, only instead of rotating the cam 4 teeth CCW I'll just rotate it 2 teeth CCW, and play with the distributor.

Technically, it should just do the same thing as what I've got now, only even more air, hence more POWA!! (plus the BADAZZ LOPE!!) Jeez people would pull up at a red light and freak out at the loping.. It was great, the car would shake so much that when I girlfriend would hop over on top of me with the car just idling we wouldn't have to do anything, it's like that special mechanical sex chair they made in China that would have you and your girl on the... nevermind

ROFLCOPTERZZ ...jk, but yeah, I might actually do that tomorrow if the wind's not blowing a gazillion mph and not 26* outside..

If running the twin exhaust cam setup in the stock position works (which it does, proven) and you can also run it 4 teeth CCW, then 2 teeth CCW shouldn't be a problem. I've got a stock-ish exhaust, quieter than stock though... so people would just think I'm constantly having sex in my car riding around town -_-*

[shytdoode]

bump fashoo

[gingerbredman]

Well, I made a little vid today and posted it up on YouTube. It seems the powerband stays strong until 5500rpm. Downside is the power only comes in at 3500rpm so I dunno.. Having a stock exhaust system may be affecting the lack of top-end power but I don't think it will that much.

Rotating the stock intake cam another tooth will only move the powerband even further up and with it limited somehow to 5500rpm, it won't give too much.

Sooo, I'm thinking about just swapping out the stock intake cam for an exhaust cam and just having it rotated 1 tooth ccw like it's set up now. I'm hoping it will magically pick up around the same rpms and carry the power up to 6k, but it may not. Food for thought I reckon..

I just remembered those things the other day, those performance meters like G-Pro (I think.). Of course, it wouldn't dyno an accurate amount of power, but I should be able to just use it with different setups and compare graphs and such, maybe.. bleh I'm off to sleep _-_ got to work

[rms13Mike]

can you post a link please? im curious. . .

[spank044]

The reason you rotate the cam is to use the optimal valve timing. The reason you have such a lope is because your valve timing is off. It is actually advance dcausing a lower cylinder compression. The intake is closing sooner so the piston is still actually going down when the valve closes and is opening when the piston is coming up. That is what is causing that lope in the idle. I would say you are losing 10 to 20 horsepower with your bad cam timing. You need to rotate the cam gear in order to allow your intake cam at the right point at the intake cycle. Now if you adjust the intake and exhaust cam appropriately you can set them up to assist in the scavenging effect, but it will raise our egt.

Do a cylinder compression test and report back. I think your compression will be around 130 if it has a good engine.

[gingerbredman]

Here's the link, you might want to skip ahead a bit to get to the run. Don't mind the painted funky trim pieces and sry for the less-than-amateur quality video. Well, I was just goofin off on the way home from work, enjoy, or not http://www.youtube.com/watch?v=cX9WscL_dyM

Well, I decided against the dual exhaust cam setup, I've decided to keep the intake cam where it is and have Jason with Emance tune for my future ka-t setup after talking to him about it.

Oh, yeah man we did a compression test on just the #1 cylinder before I bent the 3rd and 4th pairs of intake valves way back when. The compression rating was low on the #1. So, it was because of the altered timing in the valvetrain eh?? Yeah the reading freaked me out, I didn't think I'd ever have my Nightrider back

I'm going to do a compression test this weekend for sure, before I transplant motors. When you suggested the reading to come out to 130 are you talking about the dual exhaust setup?

..man, is there anybody on here that's running the 2 exhaust cams in their turbo ka?? I imagine it would yield nice peak numbers, with a decent power curve. bleh I don't know, I just want to keep my SE clean. It's tempting to go with the exhaust cams, I love the lope I don't know what I'm gonna do, I play with the cams like kids play with Legos lol I'm tired, I'm rambling, I'm out for now _-_zzz

[iitywygms]

this will keep ya entertained for days.

zerothread?id=152578

[gingerbredman]

Oh GEEZ THX! lol jk, I read through this a WHILE back but haven't been to it lately. Thanks for the link though

I think I'm going to ask on there if anyone's got a dual-exhaust cam setup running a turbo, surely somebody does.. if not, I could be the first one, though it might be a little later down the road.,