Best way todo boost return mod

[Richvw18]

Hi all..can anyone adviae me on the best way todo the boost return modification as people seem to have different ways of doing it......

[physicsfool]

Decent guide on here, go to the bottom of the page

http://www.polog40.co.uk/forum/index.php/topic,4961.0.html

[Richvw18]

Hi there....thanks for that..is this ment to show pictures at all because its not if uts ment too..
Regards....

[physicsfool]

Nah, its just the written guide. Need guidance with any step in particular?

[Richvw18]

Erm.....well the pipe that you attach to the breather dome..can you just vent this to the floor instead of using an oil catch tank... and would you put a filter on the open end of the throttle body.

[RyanC]

U can vent to atmosphere but that's a bit lazy and will probably cover ur underside of ur car in oily water mess (I know someone that did that and it was a mess) just buy a catch tank of eBay for like £20, and a filter on the tb won't really do a lot tbo just leave it open

[Richvw18]

Thanks again for that pal.....its a just dont like the idea of the throttle body
Being open to anything flying about...

[Jezza-7]

Throttle body is constantly blowing air out, except when on boost. I doubt very much anything will go inside, just stick a filter if your worried. I have ran the boost mod for about 4 years now and never had a problem. 

[Richvw18]

What are the actual gains and bad point from doing this modification if any...or is it just for show...?

[Richvw18]

And abviousley the hot air going back into the charger...an the lil bit of oil...
Some say you need to lube the charger some say dont bother.....?

[Jezza-7]

Who ever tells you not to bother, do not listen to them. The charger will need proper PTFE grease that the club sells on here.

http://www.polog40.co.uk/merchandise.php

I have heard of some people saying that they used to put a cap full of oil into it but i would recommend the spray grease.

Most people do it for the whoosh noise, and it stops the watery oil mix from the crank going into the charger and engine. But you kinda need that to lubricate it, thats why you need to spray no more than 2 secs of this ptfe into it every 1000 miles or so.

Jabbasport dont recommend this at all though.

Some people say there is no power gain from it but i dont think there is any solid proof that it does/doesn't.

I found that the air coming out of the throttle was cooler without the return pipe on. But everyone has different opinions.

[PeteG40]

Its essential u use a 1 inch unrestricted pipe on your breather to catch tank. If restrictive it can pressurise the crankcase

[Richvw18]

Thanks for that lads....1 inch id samco it is......

[Richvw18]

hi all....well i finally got round to doing the boost return mod...thanks all for the help...all sounds good apart from im getting a little bit ov hesitation on throttle sometimes....and its making a rather loud dumping noise too,,,i know the mod is to make noise but is this normal.....?

[Jacque]

Hi, just curious? did you notice a power increase?