New website

[AceInHole]

Heh... I'll admit it... I should've done this a while ago, but I haven't been this bored untill now (don't have a large hammer to take my Q45 rotors off the hubs). So, I got off my ass (or actually got my ass into the computer chair) and started the website that'll host the installs and projects I've been taking on recently.

Right now it's real half-assed and only includes a few things, and a small list of what should be coming soon. For now, you get what you see, and I'll include more detail into the current turbo writeup later on.

anyways, on with the show:

http://www.engr.uconn.edu/~corrales/240/

[SilviaNinja240]

right on!, keep us updated on the updates

[Bbandit]

ace
could you put that link on your sig?
im sure it'll be helpful.. especially for me :D :D

[Saul240]

nice website! KA turbo, way to go!

[s13fastback]

Originally posted by Saul240
nice website! KA turbo, way to go!

i agree

[AceInHole]

ok... added the link to my sig. also did a few small updates to the site. hopefully it'll make for a nice archive of small 240sx projects and information.

[sykikchimp]

very nice.. thta info on the s13 to s14 head swap is very interesting..

I'd be interested to know which one is a more efficient design.. say would the s13 head make more power than an s14 head with s13 cams?

[AceInHole]

Originally posted by sykikchimp
very nice.. thta info on the s13 to s14 head swap is very interesting..

I'd be interested to know which one is a more efficient design.. say would the s13 head make more power than an s14 head with s13 cams?

I really don't think there's any difference between the heads besides the cams and some small casting features (i.e. the timing chain and valve covers), so if they had the same cams, they'd be pretty much equal. I'm almost positive that the S14 makes it's power through the exhaust, as it makes the same power as the S13 with lower duration cams. Who knows though, maybe the S14 had softer valve springs for less valvetrain losses, and that's why the redline is near 500rpm lower than the S13 DOHC.

[sykikchimp]

So the ports and the path they take into the Comustion chamber are the same on both heads? I was really kind of wondering if they had done anything like with the s13 and s14 SR20 heads (low port, high port designs).. After your port job did you see gains?

what was the difference with the Timing chain guide?

[AceInHole]

Originally posted by sykikchimp
So the ports and the path they take into the Comustion chamber are the same on both heads? I was really kind of wondering if they had done anything like with the s13 and s14 SR20 heads (low port, high port designs).. After your port job did you see gains?
Yeah, I'm pretty sure the paths are the same on both heads. There are full res. pics of the heads that show some of the ports. But in either case, you can use an S13 intake or exhaust manifold with an S14 head, and vice versa. The angle of the manifold and port is the same in both, so I'm pretty sure there isn't a difference in the shape of the port.

After the port job there was a definite increase in response. Most of the work was done on the exhaust manifold though, taking out caked debris and polishing it, along with grinding out the manifold ports.

what was the difference with the Timing chain guide?
With the upper timing chain guides off there was a lot less rattle at idle... but while engine/ compression braking the rattle came back a bit.

[sykikchimp]

well.. while compression braking, isn't the force applied to the crank comming from a different direction? In that case the slack on the chain would move to the opposite side of the timing chain gear on the crank.. which would cause the chain to smack the guide. could be way off here.. ?


Or maybe it has to do with oil pressure? But what I'm thinking would be a result of Loss of oil pressure, and I would think that I rise in RPM or load caused by compression braking would INCREASE oil pressure.. (Think lower chain tensioner)

[AceInHole]

Well, oil pressure is RPM dependant, not really load dependant, since the oil pump runs directly off crank speed.

What I'm guessing was happening with the chain was it either wasn't the chain making the noise, or it was the lower chain and guide. Either way it was a lot quieter untill I developed that clacking sound that was most likely the rod.

[sykikchimp]

lol.. I've heard that noise before... not fun. soon after I was picking peices of the piston out of the oil pan. :)

[AceInHole]

Originally posted by sykikchimp
lol.. I've heard that noise before... not fun. soon after I was picking peices of the piston out of the oil pan. :)
LoL... we felt around in the cylinder through the spark plug hole and the piston seemed to be there... I'm almost positive it's the rod.