rapidcossie

Have been doing some prep work for extracting some more BHP from my engine..

have been messing around with my breather system as i dont think the bailey one is up to much on high powered engines runing tons of boost..

the pics look shit but im just trying to improve on bailey design and have spoken to another company about getting a better one made.

have changed the configuration of the bailey so that it now breathes out of the turbo side of the block (as i now believe it should)rather than using that as a return, and the cam cover and the standard position...

initial testing seems to be positive.

ignore the bottles as they are there just to see if anything actually comes out.

what do people think about this, as you never seem to get a definate answer on the best breather set ups??







should be better once the new seperator and aero hoses are on

next phase is my new exhaust..

picked up my down pipe today..

what you guys think?

4"






having the rest of the system made up in twin 3"..

the exhaust combined with some more mapping and the cams set up should see another 30 BHP on top of my figure just now

Matt

euan whats the point in having an exhaust bore wider than the turbo outlet?

Stavros

Turbo outlets are rarely even 3in, and you know how 3in systems are important.

And hell, inside the turbo the space is MILES less than at the outlet.

Backpressure.

rapidcossie

I am not the best person to explain it matt but i have seen AVA testing exhaust on various high power cars an they know this works...

in a standard off the shelf cossies exhaust(magnex, mongoose) there is back pressure in the exhasut at anythin gover 300 ATW...

i have mega back pressure at 400..

Alan and Tom at AVA worked out the theoretical size the exhaust needs to be an this is the best way to try and achive it.

reduction in back presssure is only a good thing and i wont have the T4 for ever

Matt

not being smart btw steve......
wont be any back pressure though if outside the exit is larger?
backpressure.......ive read both for and against
always remember bicknells grey escort needing shit loads more fuel putting in the map after the larger exhaust was fitted...think ive just answered my own q there!

Matt

thats cool euan i aint the best person to ask about it pal

rapidcossie

ask martin(dumped) he is good at exlpaining it

Matt

cant understand fuck all the weegie says at the best of times so owt techie is defo out the window

Ollie.

You'll never catch me!!!!!

rapidcossie

i know the old taxi aint a patch on your jap mobile

rapidcossie

just tell him to speak really slowly

Ollie.

This is soooo quick just now... How you gonna get grip now!

I gotta get a run in this Euan! Can wait to see it all finished. Looks like it will be soon

rapidcossie

next time your thru in falirk ill see if i can beat my 7k run

Ollie.

In second gear of course...not 5th...

rapidcossie

no, that would be against the law ollie

vroooom ptssssh

Good luck euan, still need to blag a ride in it

dave120

not more tinkering! think he spends half his life under the bonnet of this car! lol!

mega quick thou, I love going out for "Testing" runs in this

even if he is always shouting at the Faulty SPA gauges! lol

COMEDY DAN

Loving the spring water bottle, dont you just love that stuff, fresh and cold out of the fridge, let alone used as a breather catch tank....

rapidcossie

new breather set up is on its way to me as we speak!

big thanks to Glenn at GGR

KSA-Cossie

iTrader: (4)

Nice one euan keep us posted m8 .

PeterD

get the bottle chromed euan

Best o luck mate

Anonymous

M.A.Developments have done a system thats good up to arround 900bhp.
We tried the best from the rest & even got another well known supplier of Breathers to solve our probs. They didnt.

CossieRich

iTrader: (1)

Rod,

What breather system were you using with your old 504 bhp set-up and was it effective?

rapidcossie

Rod is your current set up breathing from the cam cover, the standard postion and the turbo side then the first tank is a seperator and the second a catch tank?

rapidcossie

yeah my oil and water temp decided to stop working so its on its way back as i speak!

thanks to Tony at SPA who sorts all this out for me

rapidcossie

sorry just looked at the second pic

the second tank just increase the volume of the breather?

Anonymous

Mate your missing an alloy power steering pot..it just so happens i have one for sale mate

Mark Shead

Both tanks are breather/seperators, the first is the main one the second is there for when the first is over powerd, Only the second returns to the sump, Both have a lot more going on on the inside than it looks .

Mark

Mark Shead

Rod was using a spec r unit before on his old engine and it worked very well ,
With the new spec long stroke engine and the NOS we needed something a little more , 99% of the engines running this kind of power would be on a dry sump set up.

Mark

Lambchop

iTrader: (1)

Euan you're like a woman! At knockhill you had decided that gaining an extra 30bhp WASN'T worth the time and money
I said you'd do it

Good choice

rapidcossie

im doing it slighty cheaper than i first thought tho chop...

will aslo have the extra power at lower boost level so should be easier on the engine

EIL132

Indeed he did

rapidcossie

cant help it lol

EIL132

TBH Euan, the car sounds fast enough as it is/was from all accounts. Awesome machine, wish I'd had a good look at it at Knockhill

Lambchop

iTrader: (1)

lol cheaper is good though

Thanks for the backup james

Will look forward to higher bhp when i get a spin at last

Ryan

think for high HP applications its advisable to have a swirl and a catch tank seperate, like rods setup, rather than an all in one item.

correct?

i have a very similar setup to rods.

S3an

at what power would you say it becomes a neccesity to upgrade your breather system on a YB?

rapidcossie

my new breathe ris the GGR one that was used on the old race cars.. so should be ok for mine..

i would up grade breather at anything over stage one

rapidcossie

dont think i have ever seen a breather system with a swirl pot?

there should be a seperator and a catch tank, but a swirl pot?

you mean for the coolant system?

rapidcossie

fitted my new breather today..

first impressions are good...

just need to sort a catch tank and a return into the sump...







ignore the baily sperator as im just using it a catch tank for the moment..

also fitted my new power steering tank courtesy of Bosch -Man