Turbo, Carbs, Throttle Bodies, Boost???

[logic_guy]

I'm reading peoples progress threads more and more and coming across all different types of ways to improve power.

I'm completely lost when it comes to this kind of stuff and have no idea what the pro's and cons of each of these modifications are.

I know what a turbo does, but how does it compare to say T/b or carbs?

Can someone explain what they all do, pros and cons and what you'd use them for?

I've tried reading this long mashoosive thread but it still doesn't explain everything.

Thanks

[adzvtr]

throttlebodies make a nice sound, boost makes you go quicker.

[Barry123]

I'm ignoring carbs.
t/b's probably the least beneficial given the £/hp - but has the 'easier' upgrade path.
Buy car, put camz in, run along for bit, do the exhaust and the induction in time, then pop on the tb's and the then add the ecu. Sorted.

Turbo/supercharger - more costs involved from the start, but more power gained - not withstanding the life of other components (gearbox for instance)

[logic_guy]

So how do you get 'boost'? and exactly what does it do/ how does it work

throttle bodies just make a nice sound, i'm guessing more torque/ quicker acceleration?. How would that compare to a turbo?

[Mieran]

Carbs = black and white technology
Throttle bodies = too much money
Boost = best bhp per £

[Mieran]

Boost is generated by supercharger or turbo, they are called forced induction because they make 'air' and push it through your throttle bodie, while the standard engine sucks in air from the air filter

Turbo works of exhaust gases and supercharger runs of the engine by a belt

[Barry123]

with tb's you're pretty much limited by engine capacity - so there is a finite amount of power the engine can develop before you hit the limit of emissions and that for MOT.

With a turbo, because you're forcing more air in you're not limited to engine size in the same your are with tb's.

With boost you need a turbo/super charger. Super charging is probably the easier route. The charger needs to be connected to the air intake, and thus force more engine into the engine.

[Jungle]

Originally Posted by logic_guy

So how do you get 'boost'? and exactly what does it do/ how does it work

throttle bodies just make a nice sound, i'm guessing more torque/ quicker acceleration?. How would that compare to a turbo?

engine tuning comes down to one thing... making a bigger bang. To make abigger bang you need more air. Carbs and ITB's suck a bit more air in but unless matched with cams headwork etc don't pull in that much more are. Boosting by turbo or supercharger, in it's most simplistic form just rams more air into your engine, you then make allowance by more fuel and easy as that more power.

As everyone says bang for buck boost is the way forward, but boost is alot more complicated.

[hard_corejoeboy]

Turbo uses exhaust gas to spool up a turbine which drives a compressor which forces air into the engine more air + more fuel = more power.

Supercharger does the same but is belt driven by the engine so whereas you will get lag with a turbo (as it needs exhaust gas to get going) with a supercharger the response is instant but you lose some power as the engine needs to 'power' it and its 'runs out of puff higher up the revs whereas the turbo will keep going.

Throttle bodies give you 4 throttle bodies basically one for each cyclinder main benefits are noise and throttle response and speed. Not as much power as turbo or supercharger will give you though.

Quick simple explanation there

[Damask]

buy the latest fast car, explains all of this

[hard_corejoeboy]

Oh you forgot one thing. Brakes and tyres and suspension and tuition this will give you more 'power' than any turbo conversion.

With this you can beat BMW M3's with 140bhp even without knowing the track and taking the wrong line

[7unner172]

boost or nothing lol

[hard_corejoeboy]

Power is nothing without control

Best bang for buck?

Buying a shit load of fireworks and attaching them to the car..or treading on an IED

[logic_guy]

Thanks guys.

Great explanations there, i've thanked many.

I'm guessing with Turbo/ super charger, you'd need an upgraded crank shaft, bearings, pistons and piston rods?

If it is fast road that i'd be looking for, super charger would be ideal as its instant response?

[Jungle]

Originally Posted by logic_guy

Thanks guys.

Great explanations there, i've thanked many.

I'm guessing with Turbo/ super charger, you'd need an upgraded crank shaft, bearings, pistons and piston rods?

If it is fast road that i'd be looking for, super charger would be ideal as its instant response?

No. For boost you need forged pistons and rods if you plan on doing big boost. Depends how much power your after.

Agree with S/C bieng instant and more usable power but T/C is more manly

[hard_corejoeboy]

This

http://www.kamracing.co.uk/citroen/c...body-kits.html

plus this

http://www.kamracing.co.uk/citroen/c...s-1321708.html

plus a predator ecu

=fun!

[Mieran]

Best way of learning about turbos if you have no experience is getting a car that is already turbod from the factory then build one if you wanted at a later date when you have the knowledge you need

[hard_corejoeboy]

I think the most important thing is being able to go as fast as you can with the power you have.

When i had a VTR with 100bhp i wanted a car with 200bhp as i though that was what i needed to go fast.

FALSE all i needed was to be able to drive properly

I've learnt more about FWD in my 75bhp standard 5 door 106 than i ever did in my old car.

[Mieran]

B8s ftw

[hard_corejoeboy]

13 inch wheels and ditchfinders in the wet ftw!