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2AR-FE Recreation

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kalsylum

Posts: 35

Joined: Fri May 03, 2013 10:04 pm

Post Fri Jul 03, 2015 4:47 pm

2AR-FE Recreation

http://www.scion.com/cars/tC2015/specs/
http://www.rav4world.com/forums/96-4-3- ... ating.html

As quoted from the link above, target is:
Regular unleaded (91 RON)
179 HP @6000 RPM
233 Nm @4100 RPM

This is the best that I can get at the moment
2AR-FE.jpg
2AR-FE.jpg (241.04 KiB) Viewed 3431 times


I got the peak HP occuring at the right RPM but short on 1 HP. Torque comes 1000 RPM too early and short of 4 Nm. Octane exceeds 91 :oops: and I used VVL (I am not sure if 2AR-FE uses VVL, but I do know it uses Dual VVT).
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Sayonara

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Naturally Aspirated

Posts: 219

Joined: Tue Nov 26, 2013 1:19 am

Post Fri Jul 03, 2015 8:43 pm

Re: 2AR-FE Recreation

No VVL.

Toyota VVL engines are branded VVTL-i or Valvematic.
Image
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kalsylum

Posts: 35

Joined: Fri May 03, 2013 10:04 pm

Post Fri Jul 03, 2015 9:09 pm

Re: 2AR-FE Recreation

Sayonara wrote:No VVL.

Toyota VVL engines are branded VVTL-i or Valvematic.


2AR-FE.jpg
2AR-FE.jpg (234.38 KiB) Viewed 3414 times


Thanks for the input. I remade it without VVL, upped the cam profile (can't believe a Camry has cam profile this high), gave it more fuel (14.2:1), used a tubular header, use smaller exhaust diameter (1 step before optimal diameter) and played around with the ignition timing.
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nialloftara

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Joined: Wed Feb 05, 2014 2:07 pm

Location: Northeast USA

Cars: 2006 Scion Xb

Post Sat Jul 04, 2015 1:28 am

Re: 2AR-FE Recreation

Those were never the most economical engine, might be able to do 14:1 or 14:0 and back the cam off slightly. Also it's Toyota so make sure you have a few quality points in heads and fuel
Chief designer and CEO, Centauri motor works, Centauri Performance Vehicles (CPV)
"Centauri: The Stars Are Within Your Reach."
Centauri engines Centauri cars
CPV engines CPV cars
Company ID: 1943047
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kalsylum

Posts: 35

Joined: Fri May 03, 2013 10:04 pm

Post Sat Jul 04, 2015 4:26 am

Re: 2AR-FE Recreation

nialloftara wrote:Those were never the most economical engine, might be able to do 14:1 or 14:0 and back the cam off slightly. Also it's Toyota so make sure you have a few quality points in heads and fuel


I used +6 bottom parts, +5 head parts, +3 fuel system, +4 exhaust.

I wonder why automakers are using high compression with mild ignition timing. Personally, I got better result both in economy, responsiveness and power figure with low compression but aggressive timing. It is also easier to make it run on regular leaded using low compression with aggressive timing. I'm not sure about real life figures, but in automation that's the case.
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nialloftara

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Supercharged
Supercharged

Posts: 1983

Joined: Wed Feb 05, 2014 2:07 pm

Location: Northeast USA

Cars: 2006 Scion Xb

Post Sat Jul 04, 2015 5:05 am

Re: 2AR-FE Recreation

Dealing with timing is tricky in real life.
http://www.innovatemotorsports.com/resources/myths.php

In general upping compression is far easier to do especially with modern computer controlled timing and variable valve timing. The ignition timing in game is a basic representation of the process the slider just means how aggressive you want the timing to be.
Chief designer and CEO, Centauri motor works, Centauri Performance Vehicles (CPV)
"Centauri: The Stars Are Within Your Reach."
Centauri engines Centauri cars
CPV engines CPV cars
Company ID: 1943047

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