Induction kit

Overlag said:
try it for yourself? a lot of mags "whine" about the fiesta ST being so down on HP, but its because ford aimed for a hole in the market for kids that cant afford high insurance groups of 170bhp cars like the clios at the time.

how do you keep hp down but still make it look good with a 2litre engine? well you restrict it. the airbox on my 1.2fiesta was less restrictive, straight in, filterd then straight out. the ST150 box doesnt do this. hell the pipe is SMALLER on the ST150 system than it was on my 1.2 :p

a 300bhp engine wont gain from a K&N as much because its designed straight away to be good, the ST150 wasnt, it was designed (detuned) to be 148bhp... not bad from a 160bhp lump ;)
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I didn't mean 300bhp standard, I meant engines tuned up to that spec

I don't plan on buying a fiesta ST to drive to halfords, fit a k&n 57i, say yea that sounds crap, rolling road it then light it on fire.

If its say ~161bhp with ONLY a k&n 57i, why would a fiesta ST mountune with upgraded induction, less restrictive exhaust and a remap only push 163bhp?
 
Toker said:
I didn't mean 300bhp standard, I meant engines tuned up to that spec

I don't plan on buying a fiesta ST to drive to halfords, fit a k&n 57i, say yea that sounds crap, rolling road it then light it on fire.

If its say ~161bhp with ONLY a k&n 57i, why would a fiesta ST mountune with upgraded induction, less restrictive exhaust and a remap only push 163bhp?
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because its a offical ford item?

for half the price u can get all the stuff and do it yourself and get 170.

(maybe not half the price but...)
 
i'm not talking about price, i'm talking about bhp

working on those principles a mountune should get roughly

induction kit - +11bhp
exhaust - +5bhp
remap - +17bhp

183bhp

A remap alone gives around 16-18bhp and I just read a guy claiming with a remap and 57i he got a whopping 18bhp increase :D
 
Toker said:
i'm not talking about price, i'm talking about bhp

working on those principles a mountune should get roughly

induction kit - +11bhp
exhaust - +5bhp
remap - +17bhp

183bhp

A remap alone gives around 16-18bhp and I just read a guy claiming with a remap and 57i he got a whopping 18bhp increase :D
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so basically you are saying the ACT temps of 30c vs 19c are not going to help the HP rating? if thats the case why do FI people fit intercoolers if temps dont matter?

and the removal of a restrictive induction system over a meter long and replace it with a 20cm tube isnt going to make a dif?
 
what I'm saying is, I find it highly unlikely a run of the mill high street store induction kit is going to produce 11bhp when an induction kit/exhaust system/remap is producing 13bhp
 
As much as I wanted to believe the huge gains on a fiesta st when I owned mine with simple breathing mods the gains are the same as you'd expect from most reasonably sized N/A engines, a few bhp here and there before being forced to spend silly money for large gains.

It sharpens response because it has 12 miles of pipework that is condensed into a 30cm pipe and suffers from heatsoak massively due to a lack of airflow and crammed into a small space.
 
Overlag said:
so basically you are saying the ACT temps of 30c vs 19c are not going to help the HP rating? if thats the case why do FI people fit intercoolers if temps dont matter?
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I think you answered your own question there - I underlined it to help you. FI heats the air a lot, so they add an intercooler to get the charge temp back to about what it would be if the air wasn't compressed.


And if Ford were trying to keep bhp down there are far easier ways of doing it than a bad air filter. A different map for instance. And also a bit odd given that in general the idea is to get as much power as possible out of the engine commensurate with a long life.


M
 
i investigated this when i had my TSport, and decided against bothering in the end...

The one bit that was accurate was that a Panel kit was better than a cone kit.

A lot of the time the induction noise makes it "seem" better, but in reality you are losing power.

TRD do a good one, the others, really dont give you ebough of a gain to justify the outlay (specificially on Celicas here)
 
Overlag said:
nope, i go up southend sometimes, but not with any crowd.

as said, the standard ST150 air induction system is TERRIBLE. *all* cone filters with *GOOD* cold airfeeds have gained 10bhp, as in fastford mag, performance ford mag, online, and users before and after power runs show....

do you want to bet some money that ive lost power then???? ;) seriously... I could do with some easy money.

ripped from FiestaSTOC (which was ripped from fast ford mag)



the standard airbox, not only has a very long (almost a meter long), and very twisty pipe (with 100degree bends) to and from it, but it also COOKS the air to a nice 30c for the engine to use... great job!
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i didnt read any of that apart from, do you want to bet money?

line em up? ive been out with the fiesta bunch before, mine saw them off apart form the one with the "claimed 200bhp" from cosworth internals and head.
 
typically yes. the map sensor will typically hvae to work in conjuction with a throttle position sensor, temp sensors etc but there are so many variations in how an engine will measure the flow into the engine
 
Overlag said:
try it for yourself? a lot of mags "whine" about the fiesta ST being so down on HP, but its because ford aimed for a hole in the market for kids that cant afford high insurance groups of 170bhp cars like the clios at the time.

how do you keep hp down but still make it look good with a 2litre engine? well you restrict it. the airbox on my 1.2fiesta was less restrictive, straight in, filterd then straight out. the ST150 box doesnt do this. hell the pipe is SMALLER on the ST150 system than it was on my 1.2 :p

a 300bhp engine wont gain from a K&N as much because its designed straight away to be good, the ST150 wasnt, it was designed (detuned) to be 148bhp... not bad from a 160bhp lump ;)

oh, the ST165 has just come out.... guess what is changed on the ST165.... ;)
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You ST boys will never learn ;) Your car is not as quick as a 172/182/gti6 with a filter and it never will be :p

Pannel filter for the win!
 
After trying a wide range of kits from short ram to CAI, normal intake system with the resonator removed, coupled with a good aftermarket filter (using the spoon drop in filter at the moment) works like a charm. My resonator box sat in the wheel arch liner area so I took out the box and sawed the piping so it intakes cold air from the same location. Its not as stupidly loud as the metal piped systems mated to a K&N filter, but it works properly, doesn't get heatsoak, doesn't hydrolock and doesn't give me a headache on the motorway. The K&N cone noise is very easy to spot, saxos galore have them around here and its just not a very impressive noise. Don't be that guy and use a drop in with the stock system or splash out on something well engineered like the gruppem kits or the like.

Normally though, its not worth spending the money on anything more than a drop in.
 
Further to the above, a decat was a much better use of £50. Nice gains throughout the rev range and it pops/flames at high revs ;)
 
Nathan said:
You ST boys will never learn ;) Your car is not as quick as a 172/182/gti6 with a filter and it never will be :p

Pannel filter for the win!
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its not french, or a stupidly overpriced golf either.;)

Psycrow said:
Further to the above, a decat was a much better use of £50. Nice gains throughout the rev range and it pops/flames at high revs ;)
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MOT? or fine at the roadside for not having one? ;)
 
Not having a catalytic converter in itself is not illegal. It is deemed to be illegal if you cannot pass an emissions test though. If the car passes the test without the cat (which many do) there is no problem.
 
Lopéz said:
Not having a catalytic converter in itself is not illegal. It is deemed to be illegal if you cannot pass an emissions test though. If the car passes the test without the cat (which many do) there is no problem.
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ST doesnt though... apparently :( lol
 
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