car engineering
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i am only 14 years old but i want to know more about car engineering.
just a few questions.
i would like to know what are blow off values? is it those kind like found in american muscle cars, whee the engine is off the bonnet and they have like 4 inches holes..are those blow off values??
anyway is there any website where i can know more about car enginneering..
THANKS! -
naw man
blow off valves are those things that release excess pressure from the turbos i tink ..... they give that really cool "whoosh:" sound everytime it goes off
the stuff on the bonnet is a scoop, suppose to allow more air to the engine bay or seomting correct me if i'm wrong -
the one with the 4 holes is called or Blower or supercharger...those are the real hardcore superchargers...not like the ones found in S2000s and E200s...got a gut feeling that they provide about 3 Bar boost....Originally posted by kidmccoy:naw man
blow off valves are those things that release excess pressure from the turbos i tink ..... they give that really cool "whoosh:" sound everytime it goes off
the stuff on the bonnet is a scoop, suppose to allow more air to the engine bay or seomting correct me if i'm wrong -
scoop correct.Originally posted by kidmccoy:naw man
blow off valves are those things that release excess pressure from the turbos i tink ..... they give that really cool "whoosh:" sound everytime it goes off
the stuff on the bonnet is a scoop, suppose to allow more air to the engine bay or seomting correct me if i'm wrong -
but my house there got one ford escort or something, quite old model, but not too old, got the sound you mention, the sound is like 2fast2fuirous the cars when chargegear, the release the gas then got that sound right...
then is a turbo and a turbo charger the same? or 2 different things? -
well..... you can add a blow off valve on a non turbo car
it doenst really do anything but you get a really nice sound and you'll probably scare ppl into tinking your cars got soemitng special haha, good way to waste coupla hundred bucks -
I got something to ask too!
What are those at the red arrows?
What are they used for?
How much do they cost?
They look cool!
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hehe sounds like you wanna buy those guages even though you dont know what they do
i cant tell form the picture
could be anything from boost, voltage, oil pressure, water temp .... -
those are meters what...
most pple put for fun, make it look nice, most of them are battery i think cause most pple car dont have like turbo all these, so put there also dont work....
any1 can answer my question? is turbo and turbo charger the same? -
Yeh bro! They are so irresistable, feel like installing but i have to get my pay first. Hee. I think voltage and oil pressure is good, since my car doesn't have any turbo, well, just to make it look nice lah.Originally posted by kidmccoy:hehe sounds like you wanna buy those guages even though you dont know what they do
i cant tell form the picture
could be anything from boost, voltage, oil pressure, water temp ....
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same. battery and battery charger then different.Originally posted by _____:those are meters what...
most pple put for fun, make it look nice, most of them are battery i think cause most pple car dont have like turbo all these, so put there also dont work....
any1 can answer my question? is turbo and turbo charger the same?
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haha yeah tahts true it makes the car look pretty damn cool
if i do get any it'll be oil pressure, water temp and air fuel ratio the electric kind ........ but then again, saving up for engine mods might be a better idea -
i would like to know.
does bodykit actually make a difference to the car's performance??? or is it the aerodynamics?? -
then does body kit helps the car's performance?
or only the aerodynamics? -
AE86tofu ---> this was what i thought was a blow off values http://www.ridejudge.com/rideDetails.asp?RideID=10096
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Depends on what sort of body kit you are refering to.Originally posted by _____:then does body kit helps the car's performance?
or only the aerodynamics?
There's two kind of body kits: Lightening Kit and Design Kit.
Lightening Kit:-
Replacement of existing parts (like bonnet, hood, bumper, etc) with lighter counter parts. Resulting in lighter overall body weight which will improve overall handling, easier pickup performance and etc.
Design Kit:-
Just mainly for design and looks only. Like eg. A Lancer GLX with a body kit of EVO7. Outlook looks like evo7 but it's only a GLX.
Also refering to your previous post on the picture of the two specific guage:-
The lower guage is Boost guage. Show's you how much power you got from your booster (refering to either supercharger or tubro depends on what you're using)
The upper guage, if i'm mistaken, should be EGT guage.
Hope that's answer your question. -
That's a old model of supercharger.Originally posted by _____:AE86tofu ---> this was what i thought was a blow off values http://www.ridejudge.com/rideDetails.asp?RideID=10096
What's "Blow Off Valve" and what does it do beside giving the "pisss"/"whoosh" sound?
To eliminate compressor surge when changing gears. Excessive backpressure is created when the throttle is closed during gear changes or deceleration, causing turbo cavitation. This is detrimental to the life of your turbocharger; however fitting a BOV will substantially improve this problem.
By installing a BOV you will significantly reduce turbo spool up time. You will notice a substantial improvement in response from your turbo between gearshifts. Boost will come on earlier giving an increase in torque at lower RPM
The vast majority of turbo owners fit aftermarket blow off valves simply for the signature noise that they make between gearshifts. While that may be reason enough to fit one, they do actually serve a more important purpose than that. A common misconception is that if a turbocharged car doesn't make a "whoosh" noise, it doesn't have a blow-off valve. Almost every modern turbo car will have some form of blow-off valve, except that the vented air is returned to the inlet tract before the turbo to muffle the sound.
A good analogy for what happens in a turbo system when you close the throttle is water hammer in household pipes when you turn the tap off too quickly. The same thing happens when your turbo is spinning at about 100,000 RPM, pumping pressurized air into the engine. When the throttle butterfly snaps shut for a gearshift, that air (which can be traveling at up to 90 meters per second) has nowhere to go except back the way it came and out through the turbo. This is bad for a number of reasons. First, slowing the turbo from maximum RPM to practically zero in less than a second is obviously going to place a lot of strain on the turbo. Secondly, since the turbo has stalled, the lag when you open the throttle again is increased.
The BOV is designed to release excess pressure under these conditions to allow the turbo to freewheel, which both prevents damage and reduces lag. The noise is achieved simply by venting the air externally.
You take a look here on some varies types of BOVs:
http://nextcollection.com/html/Auto_Performance2.cfm?category=Blow%20Off%20Valve&Department=Auto%20Performance
Hope this helps
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can a auto transmission car be converted into a manual transmission car?
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Honestly wif enought money u can convert a suzuki to a freaking Ferrari, so the answer is yes.Originally posted by brian:can a auto transmission car be converted into a manual transmission car?
But ur gonna have to change expensive parts pending on the car -
dudes prob right thereOriginally posted by brian:can a auto transmission car be converted into a manual transmission car?
more worth it to sell the auto car and buy the same model in manual... prob get abit more outta the sale anyways -
come to tink of it.... an auto to manual conversion would be useful on a car like a toyota/lexus soarer or an fto cause those things hardly come in manual....... just food for thought
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matrix. thanks for the reply...it was what i was looking for but maybe too detailed...THANKS
one more question. if a car is stock, what most effective tune up part can he modifiy or install to boast the car's performance?
then, air intake is to allow car to enter the entire car's engine and cool it right? then intercooler or a radiator, isn't it the same as a air intake? -
A radiator is a type of heat exchanger, designed to transfer heat from the hot coolant that flows through it to the air blown through it by the fan. Function to reduce engine Temperature (prevent overheating if you intend to drag your engine).Originally posted by _____:matrix. thanks for the reply...it was what i was looking for but maybe too detailed...THANKS
one more question. if a car is stock, what most effective tune up part can he modifiy or install to boast the car's performance?
then, air intake is to allow car to enter the entire car's engine and cool it right? then intercooler or a radiator, isn't it the same as a air intake?
An intercooler/air intake (or charge air cooler) is an component that looks something like a radiator, except air passes through the inside as well as the outside of the intercooler. The intake air passes through sealed passageways inside the cooler, while cooler air from outside is blown across fins by the engine cooling fan.
It increases the power of the engine by cooling the pressurized air coming out of the compressor before it goes into the engine
Tips:-
1. Change your computer chip -- sometimes, but certainly not always, you can change a car's performance by changing the ROM chip in the engine control unit (ECU). You usually buy these chips from aftermarket performance dealers. It is valuable to read an independent review of the chip you are contemplating, because some chips are all hype and no performance.
2. Let air come in more easily - As a piston moves down in the intake stroke, air resistance can rob power from the engine. Some newer cars are using polished intake manifolds to eliminate air resistance there. Bigger air filters and reduced intake piping can also improve air flow.
3. Let exhaust exit more easily - If air resistance or back-pressure makes it hard for exhaust to exit a cylinder, it robs the engine of power. If the exhaust pipe is too small or the muffler has a lot of air resistance then this can cause back-pressure. High-performance exhaust systems use headers, big tail pipes and free-flowing mufflers to eliminate back-pressure in the exhaust system.
4. Cool the incoming air - Compressing air raises its temperature. You would like to have the coolest air possible in the cylinder because the hotter the air is the less it will expand when combustion takes place.
Hope this what you looking for -
No point Cos U're gonna have 2 do alot of paperwork Like getting permission and approval frm LTA and the car manufacturer(Eg. Honda) 4 the transmission change and it's gonna cost alot... might as well buy a Manual transmission car unless u have no choice cos the car only has auto (e.g Mercedes)Originally posted by brian:can a auto transmission car be converted into a manual transmission car? -
Thanks alot for answering my question! I'm just curious that's all, that will do.
Btw, i just came across this video by lester wong.. for those who havent seen it, here it is,
http://onezine.s-one.net.sg/_Thur/28082003/CarTuning/