SAE Technical papers on 1ZZ-FE & 2ZZ-GE development

[fivebob]

Here's an interesting read, an SAE Technical paper on the development of the 2ZZ-GE engine
http://www.users.on.net/~fivebob/documents/2zzge.pdf
http://www.users.on.net/~fivebob/documents/1zzfe.pdf

**EDIT** added link to 1ZZ-FE paper

[Mr Revhead]

now that deserves a prize as the best find of the year.....

do they have an online library for other engines?

must go look.....

[fivebob]

now that deserves a prize as the best find of the year.....

do they have an online library for other engines?

Only other one I could find was the 1ZZ-FE which I've added a link to. I also have some interesting papers on the last Honda Turbo F1 engine & the Chrysler Hemi engine, but they're not in electronic format so I can't upload them.

must go look.....

That should test your searching skills

I've uploaded a couple more papers that may be of use to those with an interest in technical info related to automotive engineering.

Article on closed loop MBT (minimum advance for best torque) ignition timing.
http://www.users.on.net/~fivebob/documents/mbt.pdf

Analysis of the effectiveness of VSC gathered from accident data.
http://www.users.on.net/~fivebob/documents/VSC.pdf

Properties of high performance Alloy Castings... back to the old Semi-Forged debate
http://www.users.on.net/~fivebob/documents/AlloyCasting.pdf

[drizzt_stylez]

Good read on the 2ZZGE - great to know a little bit more about my engine Thanks fivebob.

[RomanV]

It is interesting to note that they run a spacer between the intake manifold and the head.... For the sake of making the engine sound sportier!

My 3sge has a similar spacer, I wondered what it was for.
And that wasnt the answer that I was expecting!

[Mr Revhead]

yeah, but it could be there for a different reason on the 3s. 4ages have that too.

[SUBARUCONVERT]

i think u will find that they added it to quiet the engine down

[Jebus]

http://www.autoshop101.com/autoshop15.html

This is another brilliant page.

[fivebob]

i think u will find that they added it to quiet the engine down

Yes that's what I though too.

Noise suppressing insulation could not be added to the inside of the engine hood, because the hood line was low. Acoustic intensity was measured and a rubber spacer was added between the intake manifold and the block . This filled a volume which was acting as a resonance chamber.

[fivebob]

I've done a bit of searching on the SAE website and have discovered that there are papers available on the following engines and transmissions, but they only available as paper copies and cost $US12 each

1FZ-FE
2TZ-FE
1G series
JZ series
4A-GE
3S-FE (not 100% sure about thise as the engine isn't listed in the title but the dates are about right and a search for 3S-FE brings them up)
1UZ
AZ series
1MZ
U140E transmission (Caldina?)

There's probably a lot more but it limits searches to 200 results.

Also of some interest may be online copies of articles published in their Automotive Engineering magazine. http://www.sae.org/automag/

[RomanV]

i think u will find that they added it to quiet the engine down

Yes that's what I though too.

Noise suppressing insulation could not be added to the inside of the engine hood, because the hood line was low. Acoustic intensity was measured and a rubber spacer was added between the intake manifold and the block . This filled a volume which was acting as a resonance chamber.

Actually I read that too, but in the introduction on page 1, it says:

Other features such as a reinforced ladder frame, and an intake manifold spacer was utilized for a sporty engine sound.

I wonder what the difference would be, if it were replaced with a spacer that wasnt rubber.

[Low_Aa63]

i vote sticky!!

[scope]

http://www.autoshop101.com/autoshop15.html

This is another brilliant page.

agreed