What are your thoughts on these ?

Are they worth fitting ?

Steve.

 

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

 

Lets have some input on these please

Steve.

 

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

 

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

 

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

Pete..

 

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

 

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

 

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!

 

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

 

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

 

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.

 

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 .

 

RS500+ Spacer can & does in my application.

 

double post

 

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

 

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

Whats the general answer..

Pete..

 

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

cheers jay

 

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,

 

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!

 

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...

 

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.

 

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

 

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.

 

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?

 

eh?

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

 

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

 

I know Rod mate, I meant without a spacer.

 

In tears

 

Why have you just looked in the mirror?

 

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?

 

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

 

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

 

that copper pipe is for det cans mate.

 

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

 

Sorry, what is det can's chip?

 

....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

 

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?

 

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?

 

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