cossie4i+

iTrader: (15)

What are your thoughts on these ?

Are they worth fitting ?

Steve.

aduz

my mate said it made a bit of a difference on his yb

cossie4i+

iTrader: (15)

Lets have some input on these please

Steve.

Gregs

what are the pro's and cons?
is there more lag but higher top end power?

cressy

iTrader: (1)

did sum 1 say more POWER thats me sold on the idea lol

warleydaddy

Id like to know what these are all about actually??

Pete..

righthooker

me too,a mate of mine wants me to try one out ,has something to do with air flow and stuff

luke89

iTrader: (1)

they increase the internal capasity so it can flow more, think the standered one will run 700odd rod has one on his and is running 900+ , sure some one will corect me if im wrong but see a post abot this not that long ago

Alloy

In my opinion they are only needed if your trying to gain huge horsepower figures. They increase the capacity to allow higher volumes of air to be taken in as said. I don't think a standard plenum or even a RS500 plenum could flow 700bhp to be honest Luke, I could be wrong though.

EDIT: Do you mean a standard plenum with a spacer? If so I apologise and you're right!

luke89

iTrader: (1)

alloy :im not 100% what a standard plenum could flow that was just a gustamet, i think maby more around 600 acculy , but rod has over 900bhp with his inlet and a spacer

Graceland

if you are going for huge horsepower figures, it makes sence to buy one of Mike Rainbums sweedish plenums - a pinch at only 300 quid or thereabouts

Anonymous

Gracey, i think that Rods 700bhp or so off gas proves that a spacer on a normal plenum can work.

Dont forget lads that if you do make a change to the plenum like spacing it or swapping it to another type in order to improve flow then you need your ECU remapped afterwards.

Anonymous

There you go 16mm Spacer. If you want to make Mike R richer buy one of his plenums, but this set-up will give you the Power no doubts.
Rod
ps. Not as sexy looking as something Swedish .

Anonymous

RS500+ Spacer can & does in my application.

Anonymous

double post

Jay,

iTrader: (4)

here rod as your neil lost somthing in ur engine bay lmao

oh did u dort that belt out by the way mate

cheers jay

warleydaddy

SO on a stg 3 engine,are they worth it??

Whats the general answer..

Pete..

Jay,

iTrader: (4)

pete ones goin on mine and it wont 400 at the spec its at think if anything it will help towards reliability

cheers jay

Anonymous

No need, and if you do fit one you will need a remap, you cant use the same chip and expect it to still fuel perfectly with difference airflow charecteristics,

Anonymous

They would in theory improve drivability...hence why the RS500 had the bigger inlet left on for the road car to help combat the shit setup!

IMO if you are running a stage 3 off the shelf map from a reputable dealer then you would have enuff safety margin to soak up the spacer But of course always CHECK with an AFR setup!

warleydaddy

Cars not mapped yet...

Got greys and L8 to go on it.. BUt if im GOING ot put stuff on it,i want the right stuff,before i get it all mapped up,so i was just asking if there worth it or not??

Pete...

MAD Ade

iTrader: (1)

Pete, IMHO, unless you're using over 2bar of boost I don't think you'll gain very much for how much it will cost.

Ade.

foreigneRS

how? a smaller volume behind the throttle would improve driveability by having a quicker throttle response

Lloyd

not worth fitting imho.standard inlets are ok to 450 bhp,then its the throttle body and the bend that restrict flow,and the spacer wont improve that.different on the rs500 with 8 injectors.

Anonymous

How do they improve driveability phil?

Surely its going to do the opposite and make it less responsive to small throttle openings at lower rpm, and thats what most people consider driveability?

Stavros

eh?

reason the RS500 road cars had the inlet was same reason it had all the differences from a normal 3dr, GrpA Homologation rules

Anonymous

Better drivability due to more BHP/torque....so back to back at the same boost pressure a genuine RS500 should be better driver off boost than a similar engine running a std 4x4 plenum....due to increase in airflow thus improving the power

Alloy

I know Rod mate, I meant without a spacer.

Anonymous

In tears

Anonymous

Why have you just looked in the mirror?

Anonymous

No phil i just read your post about drivability

Picture what happens when you open the throttle a little bit, what happens?

Picture it with different volume plenums, which do you think is going to respon first, the one filling the smaller plenum with boost before it gets to th engine, or the one filling the larger volume?

come on phil, i know you can do it?

Anonymous

Chip....as i pointed out the two similar cars would have 2 different throttle sizes

Alloy

Rod, what is the copper pipe for by the rocker cover?

Anonymous

that copper pipe is for det cans mate.

Anonymous

And that is relevant to a debate on plenum sizes on the same engine in which way phil?

You have TOTALLY got it arse about face, im amazed sometimes still after all this time at how badly you miss the basics

Alloy

Sorry, what is det can's chip?

Anonymous

....just like the ESCOS EEC4....bigger plenum/elbow and throttle body with small turbo ='s the best drivability there is in YB terms.


Chip all you out for is glory against ME...how sad

Alloy

Mate I don't know much about the technical side of thing's with car's, and I'm in no place to get involved with this discussion, but you keep bringing irrelevant thing's into the argument, chip mentioned the plenum and nothing else, so why are you refering to throttle bodies and turbo's etc?

Anonymous

Phil whats glory got to do with it?

Im just trying to help the lad get accurate information about his engine, not rattle on about complete different engines altogether.

Now, one more time, on his engine, with his turbo and his throttle size, which engine is going to respon better to a slight throttle opening, the one filling hte big plenum before the engine sees the boost, or the one filling the small one?

Surely there are enough clues in that question to work out how wrong you were?

Replica

eec4 engine has smaller turbo and head ports so will have better response anyway right ?