Induction kits

joshleb · June 2007

Is an induction kit the thing that when you change it goes "tschhh", Like on The Fast and Furious,

If it is it would be well weird seeing it on a megane, lol

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nicklouse · June 2007

nope that is the dump valve for a petrol turbo.

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Red Lemon · June 2007

Or, as it turns out in many cases, a speaker that's hooked up somewhere under the car to simulate the sound of a dump valve when you change gear.

joshleb · June 2007

cool, so its just something which "inducts" air into the engine.
Just wondering because my mate kept on saying he was going to get an Induction Kit for his car for the "tschhh" effect, and i told him they werent induction kits.

My quad has a K&N air filter, looks well good, dont know if it makes a difference though.

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nicklouse · June 2007

on an engine there are two sides the induction side and the exhaust side. the waste gate IS on the induction side and a waste gate kit could include a mod on the waste gate but if he does not have a petrol turbo he is talking out of his waste gate.

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Random Vince · June 2007

i'm loving the way the K&N site bangs on about that induction kit saying it makes the air filter larger allowing it to breathe

like to see them provide an air filter bigger than mine, i could use mine as a belt, tis nice and big.

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nicklouse · June 2007

but your skinny.

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dan_trials · June 2007

Depends if you want it for noise or performance. If for noise, Ive found drilling the air box in strategic places does the trick and costs nothing but time (may still knock the AFR out though). You could then fit a performance panel filter. If for performance there are many many other things that would need to be changed before you will notice any real gains. Infact its more a case of the rest of the engine has been moddified to a stage where it needs more air (and a nice cold supply) before an induction kit would be fitted. Oh and those K&N 57i cone filters arent really induction kits, they are just cone filters, which is why they often have negative effects. The Typhoon or Gen2 kits are getting there by repositioning the collector in a better stream of air but you then have the pipe work which almost undoes the improvements.

As for cooling, raising the back of the bonnet is a good way of getting cold air in, think of it as a massive scoop. Only downside Ive found is any lost fluids (perhaps from an over pressurised crank case, oops) that are flying around the engine bay then end up on your wind screen!

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nicklouse · June 2007

dont talk to me about petrol on the windscreen. need to duct more air into the carb.

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dan_trials · June 2007

heh, was this petrol alight by any chance? Seen that a fair few times.

I beleive the Megane in question though is fuel injected so you can only run more air to th MAF, the standard air box is usually stuffed behind the headlight, a silly design really. Between the engine and bulk head and just below the bonnet is perfect plus you could use an air cleaner tray similar to carb setups. Ah well, thats economical thinking for ya!

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nicklouse · June 2007

nope not alight just wet.

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RobA · June 2007

Talking about dump valves, there's a sixth former at school that drives a clapped out old 1.2 fiesta with massive speakers in the back that sound awful, as he drives in to school at about 5-10 MPH you hear the electronic dump valves going off, we just stand and point and laugh.

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Alex · June 2007

Bottom line is:

Cone filters sound cool, for the first 5 minutes. They then get boring very, very quickly, providing no kind of tangible performance difference at all. If you want to make a difference without the "look at me" sound, stick a decent panel filter in the oem airbox.

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Anonymous · June 2007

I once modified the air intake to a renault 5 GTX. The engine was struggling to get cold air (overheating was commonplace) especially after changing the camshaft and the carburrettor.
What I did was remove the square foglights, and replace them with the tiny little golf-ball ones, which sat on a three-spoke arrangement in a ducting. The ducting was connected via piping into new airboxes containing cone filters, one for each duct. (which were only used because they were the perfect shape for what I needed).
I had to strategically bend the pipework, so that any water that might be inadvertently scooped up into the system didn't get rammed through the filters.
I originally intended it to be a kind of ram-air induction, in my silly youth. But what it did achieve was lowering the engine temperature considerably. The performance gain was negligible, apart form the fact that it allowed the new carb to breathe cold air properly.

The best thing about it is that from the outside, the car looked bog standard, apart from the little round foglights. I can't stand cars that look like spaceships. Hell, even inside the bonnet, it didn't look too extravagant.

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Alex · June 2007

Eef.

I dread the day I hydraulick an engine.

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nicklouse · June 2007

done that. Seat Ibiza 1,5. new motor from the scrap yard. sorted.

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Alex · June 2007

Hit a ford or was it just silly intake placement?

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nicklouse · June 2007

both. well flooded road. after heavy rain. fine one way through. but on the way back glug glug. other side of the road was lower. and air intake was at numberplate height.

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Anonymous · June 2007

The renault worked fine, but the bends in the intake were convoluted to say the least. I made sure that there was as little a possibility as could be of getting water into the carb.

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TE · June 2007

Can you not fit a pipe from your airbox as a cold air feed to your front grill or wheelarch to catch all the cold, fresh air rather than being at the back where the air is warm?
Cold air directly onto the filter = more oxygen = more combustable.

Ill probably be wrong, im shi<s></s>t with engines...

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mongooseTE17 · June 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by TE

Can you not fit a pipe from your airbox as a cold air feed to your front grill or wheelarch to catch all the cold, fresh air rather than being at the back where the air is warm?
Cold air directly onto the filter = more oxygen = more combustable.

Ill probably be wrong, im shi<s></s>t with engines...

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<hr height="1" noshade id="quote"></blockquote id="quote">

No your right. Some induction kits come with cold air feed pipes that you fit into the grill and lead to the filter. If you combined the cold air feed with heat sheilding around the filter it should be fine.

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