First Rolling road with new motor.

[Hobbsy]

Took my recently purchased s2 1.6 8v which is standard apart from the k&n filter and scorpion exhaust to Engine Advantages in Essex today and it didn't blow up:yikes:
Not sure how accurate the rollers were but the printout gave the little beauty doing..... 122bhp @ 5801rpm:)

[J Butler]

Hey mate, was nice to meet you today. Hopefully see you again soon :)

http://i11.photobucket.com/albums/a162/jaybutler/CS%20RR%20Day%2012-8-07/DSC02970Large.jpg

[Cyb3r]

thats not bad, seems to be very good for the mods done

[J Butler]

I think the rollers were a tad generous personally.

[Cyb3r]

same

[darrenwm]

Blatantly over-reading. Get rid of the open filter.

And welcome :D:D

[Hobbsy]

get rid of the k&n induction kit?
what would you guys recommend?

[darrenwm]

get rid of the k&n induction kit?
what would you guys recommend?

A small French company called Peugeot, about 10 yrs ago, spent a lot of time designing a special system.

It goes by the codename, "standard airbox".

[Hobbsy]

ok, so your the sarcastic one on the register,:lol:
Ae you telling me that there isn't anything that has been designed in the last 10 years that improves the air intake??????

[darrenwm]

ok, so your the sarcastic one on the register,:lol:
Ae you telling me that there isn't anything that has been designed in the last 10 years that improves the air intake??????

With the exception of the "K&N, mate" and the "Peco big bore, like", the standard parts are quite effective.

The problem with these open filters is that that'll take it hot air - not good.

If you really must have induction then an enclosed design such as Simota or BMC is better.

I just felt that I lost some low down pull when I had the induction kit.

If you have the standard box put it on, and maybe spend the money you could spend on the induction on a manifold.

Alternatively you could add lightness - a free and effective upgrade.

[semtex]

nice welcome there darren ??

[J Butler]

I think its hard to say, with your cold air feed it could be better for the engine. I dont think you can judge by looking that its going to sucking more hot air in. In my experience the standard airbox used to get really hot due to the heatshield being fixed under neath.

[dynofiend]

Looks like a fun day :)

I wouldnt bother replacing the K&N with anything mate, its alot of hassle for not much gain. Once you are moving along the engine bay is full of nice cold air anyway, an enclosed filter only really helps at lower speeds.

122bhp seems like a bit of a laugh though;)

[SLIK]

120ish bhp used to be the staple figure for decat + air filter, only 15bhp higher than standard give or take a few bhp in errors.

Power runs are done with bonnet open so you get more cold air in than out on the road. Standard airbox is OK with K&N panel filter but I had flat spots in teh mid range which I dosposed of by introducing a custom sealed cold air feed directly to the air box.

[darrenwm]

120ish bhp used to be the staple figure for decat + air filter, only 15bhp higher than standard give or take a few bhp in errors.

Power runs are done with bonnet open so you get more cold air in than out on the road. Standard airbox is OK with K&N panel filter but I had flat spots in teh mid range which I dosposed of by introducing a custom sealed cold air feed directly to the air box.

Where does your feed start from? I've considered it, but the foglight area would be dodgy in puddles

[darrenwm]

nice welcome there darren ??

In hindsight my posting was quite rubbish. Apologies.

[SLIK]

My feed was a 100mm pipe but I've torn that one so just bought a 90mm pipe (which I believe is 1mm away from the circumfrence I'm after), it goes down behind the radiator top hose and fits down the right hand side (as you're facing the car) of the radiator, I had it attached to the plastic mesh trim with some cable ties but it was wedged in well and didn't move.

You need about a metre of tube to do it and a large jubilee clip to hold it to the standard airbox. Noticed a little improvement in responsiveness top end and got rid of an annoying flat spot I had about 3500rpm. I did at one point work out the air pressure in the pipe at 70mph and though very low it was still an improvement and goes some way to reducing the vacuum in the inlet manifold.

[Big Jazzle]

welcome to the register matey... nice to see your another local, make you way to the se region section;)

regarding that power readout, i would agree it sounds rather interestingly high, seeing as mine got 125 with all manner of gubbins attached..lol

cars looking good chief, get your arse along to a LAM or one of the big events coming up, namely anniversarallye:)

[Jim G]

yeh welcome mate - id perhaps try out another rolling road and compare

nice one there dazzer - u had a barny with a bitch or what lol ur stressed - theres too much bass in your voice man

[Figas]

Greeting everyone!! I'm from Portugal, and new to this forum, though I already visit it since quite a bit from now. After some thread consulting, I have realised that when it comes to discuss cold air intakes and filters, there's always a strong point missing (except for some users, with higher skills on this matter, when they discuss the usage of bike carbs and trumpets).
Its not all about free and cold airflow. As someone already stated, the "sucking" power of the engine is in fact huge, so the free flow issue isn't quite THE point here. Cold air is a lot more important than free flow, for the reasons already discussed. But whats missing is probably the most important one: aerodinamics. The same way exhaust manifolds work, the lenght and shape of the airduct is of major importance, since it changes the type of airflow, inducing speed, pressure pulses, and overall entrophy. Short air ducts (ex. trumpets) improve high revs and power, meanwhile the long ones improve midrange revs and torque. F1 and specially some rallye cathegories explore this a lot, as You can see by the fact that a F1 car as it intake manifold so well designed for very high revs that the airflow supercharges itself, through innertia. You can also see this type of studies in some supersport cars like the F60 and lamborghini, witch have variable lenght air intakes.
The lenght of an air intake can be studied in order to improve engine performance at a predefined range of rpm's.

[Petros K]

Spoken like a true Sandy follower! (thats a compliment btw)

Welcome to the forum!:D

Greeting everyone!! I'm from Portugal, and new to this forum, though I already visit it since quite a bit from now. After some thread consulting, I have realised that when it comes to discuss cold air intakes and filters, there's always a strong point missing (except for some users, with higher skills on this matter, when they discuss the usage of bike carbs and trumpets).
Its not all about free and cold airflow. As someone already stated, the "sucking" power of the engine is in fact huge, so the free flow issue isn't quite THE point here. Cold air is a lot more important than free flow, for the reasons already discussed. But whats missing is probably the most important one: aerodinamics. The same way exhaust manifolds work, the lenght and shape of the airduct is of major importance, since it changes the type of airflow, inducing speed, pressure pulses, and overall entrophy. Short air ducts (ex. trumpets) improve high revs and power, meanwhile the long ones improve midrange revs and torque. F1 and specially some rallye cathegories explore this a lot, as You can see by the fact that a F1 car as it intake manifold so well designed for very high revs that the airflow supercharges itself, through innertia. You can also see this type of studies in some supersport cars like the F60 and lamborghini, witch have variable lenght air intakes.
The lenght of an air intake can be studied in order to improve engine performance at a predefined range of rpm's.

[Figas]

Thanks Mr!! Actually this was the most valuable community I found about the 106 rallye on the web. One can easily understand that there is plenty of know-how here.
About being a Sandy follower, still didn't have the pleasure to meet him or her, but I can tell You that when I was taking my degree in mechanical engineering, I had this teacher in thermal machines witch was completly addited to cars and specially engines, so I had the chance to learn a lot from Him, and his book.
By the way, I actually don't own a rallye, unfortunatly. I have a XSI Mk1 witch, here in Portugal, came out with the S1 1.3 engine.

[sandy309]

Sounds a bit like my drum :p

In my current avatar i'm holding some inlet spacers, it was a subtle thing nobody's noticed.

[JoeW]

Darren's sarcasm is great considering he struggled to fit a pugsport :rolleyes:

[RallyeDom]

funny post

[semtex]

hes like the techny he is