Hey guys i have a few questions...
I couldn't find any pleasant answers myself.
I have technical understanding, i work as a technican at a car dealership,
but if you want to get super mega scientific, i'm out...
If there are generel formulas or calculations i can go from there...
I hope everything is clear and understandable.
Thanks a lot i advance!
__________________________________________________ ___________
1)
If i do a electrical fan conversion, how do know what fan i need?
I thought "bigger is better".., if it overheats, cool it down fast.
Or is a slow cool down better?
E.g. 1: One big fan that can move 1600m³/h air.
E.g. 2: Two which move 1000m³/h each, one starts at 95°C/203F the
other at 107°C/225°F.
The engine is NA, 2 litre, 8V, inline 4 with 115hp, cooling system is about 6.5l/1.6 gal.
The radiator is an oldschool top to bottom flow type thingi, with a belt driven visco fan.
Thermostat opens at 93°C/200°F (fully open at 107°C/225°F).
System pressure is about 1-1,3bar/14-18psi, boiling point about 125°C/257°F.
Car is daily driven...
2)
How much can i lighten the rotating mass of the engine.
I want it it to rev a bit better but still maintain a healty amount of rotating force
for a daily driven car.
If i toss (e.g.) 3Kg/6.6lbs off the crankshaft (via a lighter pully and by removing
the visco fan and lighten the flywheel) would it rev to the moon or still be a pig?
Car is rwd, if that makes a difference...
3)
I want to build an exhaust systen, how do i calculate what diameter i should use.
A bigger diameter means the gas flows slower, but you have less back pressure.
The same or smaller increase the flow but also the pressure.
Is it better to have a better flow or to have less back pressure?
Or should i keep the stock diameter (50mm/2") and just reroute the exhaust for better flow.
I thought to go with 57mm/2.25" or 60mm/2.35" from the exhaust manifold back...
Also i thought about v-band claps, are they worth the hassle/money?
The engine is NA, 2 litre, 8V, inline 4 with 115hp at 5200 rpm,
170nm/125pft at 2600rpm.
I couldn't find any pleasant answers myself.
I have technical understanding, i work as a technican at a car dealership,
but if you want to get super mega scientific, i'm out...
If there are generel formulas or calculations i can go from there...
I hope everything is clear and understandable.
Thanks a lot i advance!
__________________________________________________ ___________
1)
If i do a electrical fan conversion, how do know what fan i need?
I thought "bigger is better".., if it overheats, cool it down fast.
Or is a slow cool down better?
E.g. 1: One big fan that can move 1600m³/h air.
E.g. 2: Two which move 1000m³/h each, one starts at 95°C/203F the
other at 107°C/225°F.
The engine is NA, 2 litre, 8V, inline 4 with 115hp, cooling system is about 6.5l/1.6 gal.
The radiator is an oldschool top to bottom flow type thingi, with a belt driven visco fan.
Thermostat opens at 93°C/200°F (fully open at 107°C/225°F).
System pressure is about 1-1,3bar/14-18psi, boiling point about 125°C/257°F.
Car is daily driven...
2)
How much can i lighten the rotating mass of the engine.
I want it it to rev a bit better but still maintain a healty amount of rotating force
for a daily driven car.
If i toss (e.g.) 3Kg/6.6lbs off the crankshaft (via a lighter pully and by removing
the visco fan and lighten the flywheel) would it rev to the moon or still be a pig?
Car is rwd, if that makes a difference...
3)
I want to build an exhaust systen, how do i calculate what diameter i should use.
A bigger diameter means the gas flows slower, but you have less back pressure.
The same or smaller increase the flow but also the pressure.
Is it better to have a better flow or to have less back pressure?
Or should i keep the stock diameter (50mm/2") and just reroute the exhaust for better flow.
I thought to go with 57mm/2.25" or 60mm/2.35" from the exhaust manifold back...
Also i thought about v-band claps, are they worth the hassle/money?
The engine is NA, 2 litre, 8V, inline 4 with 115hp at 5200 rpm,
170nm/125pft at 2600rpm.
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