262's 85 Fiero SE LX9 F23 swap thread lots of pics

[ericjon262]

guys, I already have the forged pistons, I'm gonna use them, lets start a new thread if the discussion needs to continue...

taking the rest of the parts to the machine shop so my machinist can get everything buttoned up! also, got my LC1 yesterday!

[TGP37]

my buddy ran 12 lbs and a 100 shot on his fiero for over a year. Pistons were fine. It was over 400 crank hp. Using hyper pistons

and I bet his AFR was well tuned, as well as the spark advance.

Did he increase the gap on the piston rings for boost or did he keep it stock? Thought it would be a good point to pull up on this thread, ring gap for forged or hypers and boost levels.

I opened the gap up ever so slightly, there was a formula for it, forget it now. Like increase gap X amount per lb of boost versus cylinder radius.


Forged is fine, but hypers can get ripped apart if the rings butt from excessive heat.

WOOT! got my head and main studs in, also got my new valves, keepers, spring seats, flywheel bolts, ect!

got to get this stuff to the machine shop stat!

Nice, almost like it's your birthday! I love it when a lot of parts come in.

[ericjon262]

WOOT! got my head and main studs in, also got my new valves, keepers, spring seats, flywheel bolts, ect!

got to get this stuff to the machine shop stat!

[ericjon262]

didn't Einstein say that light was both a wave and a particle? w/e, lets start a new thread if the discussion needs to continue.


Edit: who the hell is Eisenstein?

[TGP37]

This question would assume that light can not pass through a vacuum. It seems it can through at least a vacuum of some amount. I have witnessed clear vessels with a vacuum applied to them and could see right through them and what is on the other side. I would say that the vacuum was close 20 in/Hg, if not more. This may still have a higher pressure than space, but is known as a vacuum as we know it on the surface of the earth.

We could get really deep into this, just wanted to make this small comment.

Back to the original discussion.

Last time I'm gonna remark as well because I know you and I both do not want to jack Eric's thread. A wave is a propagation of disturbance through a medium. A wave can not exist with out a medium to travel through, just not possible. What ever the medium is, it is present in space and here where we are. I suspected simple magnetism in a stable (benign like state) as the medium.

Now, if we can get Eric into the debate....lol, nah, he's got a lot to do still on that Fiero. Which, btw, is coming along nice.

An acoustic wave is a propagation of a pressure difference through a medium. A longitudinal wave, transverse waves are like ocean waves.

To answer your question, yes. Sound is a repeating pressure wave. For fun, I ask people if space is a vacuum, then how does light retain frequency as a wave through space from the Sun to Earth? There MUST be a medium to carry that wave form to us. So what is that medium in space?

This question would assume that light can not pass through a vacuum. It seems it can through at least a vacuum of some amount. I have witnessed clear vessels with a vacuum applied to them and could see right through them and what is on the other side. I would say that the vacuum was close 20 in/Hg, if not more. This may still have a higher pressure than space, but is known as a vacuum as we know it on the surface of the earth.

We could get really deep into this, just wanted to make this small comment.

Back to the original discussion.

[Purple pit]

An acoustic wave is a propagation of a pressure difference through a medium. A longitudinal wave, transverse waves are like ocean waves.

To answer your question, yes. Sound is a repeating pressure wave. For fun, I ask people if space is a vacuum, then how does light retain frequency as a wave through space from the Sun to Earth? There MUST be a medium to carry that wave form to us. So what is that medium in space?

Longitudinal
[ATTACH=CONFIG]7429[/ATTACH]

Transverse
[ATTACH=CONFIG]7430[/ATTACH]

I love science, physics, engineering, etc. Can't get enough of it.

Dark matter is the answer.

my buddy ran 12 lbs and a 100 shot on his fiero for over a year. Pistons were fine. It was over 400 crank hp. Using hyper pistons

[TGP37]

the tune is very important, I never said it wasn't, and cast pistons can only take so much, esp when you start turning up the wick, and really spinning it...

Truth is, hypereutectic pistons, which are the stock pistons, can handle heat better then forged pistons and don't expand as much and are lighter weight. Forged are great at taking abuse and do not shatter like glass as the hypers do. If you got the money, forged are nice but I agree with the bandaid comment.

Only reason hypers got a bad rap for boost is so many people break them cause the tune is out and blame it on the pistons being weak. You can run a 1 bar turbo on hypers, I have.


If I had the money and time, I would have done forged. But I decided to take the hyper route.

[TGP37]

My biggest problem is grasping what all goes on in the intake. I know what happens in there, but I just don't know it all interacts. Do accustic waves do anything to pressure waves?

An acoustic wave is a propagation of a pressure difference through a medium. A longitudinal wave, transverse waves are like ocean waves.

To answer your question, yes. Sound is a repeating pressure wave. For fun, I ask people if space is a vacuum, then how does light retain frequency as a wave through space from the Sun to Earth? There MUST be a medium to carry that wave form to us. So what is that medium in space?

Longitudinal


Transverse


I love science, physics, engineering, etc. Can't get enough of it.

[unchained01]

Eric I agree But modified is another story
As far as 4 and 6 instead 0f 5/6 only gasket will tell and torque specs

[ericjon262]

OOOOOH Damn son ok I all I have ever read is the stock 3500 UIM leans out at WOT other than that I need more info OR blown headgaskets

sounds like a tuning issue to me.

[unchained01]

OOOOOH Damn son ok I all I have ever read is the stock 3500 UIM leans out at WOT other than that I need more info OR blown headgaskets

[90BlueZ]

Yep agree'd.

Build looks good so far man, keep it up!

[ericjon262]

the tune is very important, I never said it wasn't, and cast pistons can only take so much, esp when you start turning up the wick, and really spinning it...