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Combing through engine specs

Posted: Tue Aug 30, 2005 10:56 pm
by Splinter
I just got a program called Dyno2003 which runs a 'virtual' Dyno of your car, i.e. it creates a simulation of engine dynamics and estimates the torque/hp. My friend uses it to get an estimation of the payoff of certain mods before actually laying down the cash and the time. It's not 100% accurate, but it gives you a decent idea.

You need to give it a ton of information, and I've found some of it, but there are still lots of gaps. Hopefully you guys can help fill them in, and correct errors

The car is a 92 Sport Sedan

Shortblock
Name: Subaru EJ22T
Cylinders: 4
Bore: 96.9mm
Stroke: 75.00mm
Cylinder Volume: 553.00cc
Total Volume: 2212.37cc

Cylinder Heads
Intake Valves: 2
Intake Valve Diameter: 1.420in
Exhaust Valves: 2
Exhaust Valve Diameter: 1.240in

Compression
Compression Ratio: 8.00:1
Combustion Space: 79.01cc

Induction
Induction Flow: ? cfm @ ? inHg
Manifold Type: Forced Induction?

Forced Induction Specifications
Blower Type: Custom Turbo (it doesnt have ours listed)
Island Flow:
Impeller Speed:
Peak Efficiency:
Surge Flow:
Belt Ratio:
Boost Limit: 12psi?
Pressure Ratio:
Internal Ratio:
Intercooler: None

Camshaft
Cam Name: Stock Street/Economy
Intake Lift At Valve: 32.41mm
Exhaust Lift At Valve: 32.336mm
Lifter Type: None (Overhead Cam)
Lifter Acceleration Rate:
Valve Opening/Closing Based on:
Primary timing (Seat to Seat)
IVO 6
IVC 52
EVO 42
EVC
10

Secondary timing (0.050-inch)
IVO
IVC
EVO
EVC


Sorry about the mixed units.

Posted: Wed Aug 31, 2005 12:18 am
by Splinter
FYI - Im editing the first post and adding info as I find it

Posted: Wed Aug 31, 2005 1:47 am
by vrg3
There are two intake and two exhaust valves per cylinder.

Intake lift at the cam is 32.414mm.
Exhaust lift at the cam is 32.336mm.

The primary valve timing is:

IVO: 6 deg BTDC
IVC: 52 deg ABDC
EVO: 42 deg BBDC
EVC: 10 deg ATDC

What are the options for "manifold type?"

Posted: Wed Aug 31, 2005 2:08 am
by Splinter
Single Plane Std-flow
Single Plane High-flow
Dual Plane Std-flow
Dual Plane High-flow
Dual Plane High-torque
Tunnel Ram Std design
Tunnel Ram Custom
Individual Runner
Tuned Port Injection
Sequential Fire Injection
Forced Induction

Posted: Wed Aug 31, 2005 2:16 am
by Splinter
If anyone wants to know where to 'get' this program, PM me.

Posted: Wed Aug 31, 2005 2:17 am
by vrg3
Oh. I guess "forced induction" is probably right. Though I also kinda like "sequential fire injection" and "invidudual runner."

For information about the turbo, you might refer to the compressor map at the end of the FSM scans Josh is hosting.

Posted: Wed Aug 31, 2005 2:24 am
by Splinter
FSM scans?

Posted: Wed Aug 31, 2005 2:36 am
by vrg3
Scans from the factory service manual. Look in the "Stuff You Need to Know" forum.