Slick81

iTrader: (1)

Hey people. Was just wondering what the benefits are of fitting a 3 port boost solenoid?

Dr B

allows quicker spool , hold boost better to redline , especially in high boost application > 18psi .Build boost faster and more consistent . Its an interrupt type solenoid not a bleed type , hence all the boost built by the compressor is seen , the wastegate is not seeing any of it until it needs to . In the bleed type , the wastegate is always seeing some boost , hence slower spool and difficult holding highboost to redline

Slick81

iTrader: (1)

Ahhh, nice one. So worth getting a hold of one then cos my cars is boosting at round 19 - 22ish psi.

Thanks

mit

iTrader: (10)

Hi, sorry to jump in,but can you just fit it and see the benifits straight away? Or will it need setting up? Also,the wiring needs splicing doesn't it? Mines on a 95RA.

Mit

New_scooby_04

iTrader: (4)

The car needs to be set up for it; generally the mapper installs it just prior to mapping.

Ns04

Slick81

iTrader: (1)

Anyone have an idea how much they nonrally are and where to get one from? Or should I leave to where Im gona get my mapping done from to source it?

Dr B

a prodrive BCS is a plug in , u need to readjust wastegate dutycycles , because will overboost . cost is 90US .

Slick81

iTrader: (1)

Thanks

Dr B

i should make one correction ; the prodrive 3 port BCS can be used both as a bleed type or in interrupt mode , depends on how u connect it . Most persons use it in the interrupt mode .

RB5Caterham

Dont the MY95 models have 3-port solenoids as standard?

Check this thread to see if yours looks the same.

https://www.scoobynet.com/scoobynet-...noid-then.html

Slick81

iTrader: (1)

Thanks for the thread. Checked the picture but mine looks nothing like that one. Iv got an MY98.

dynamix

iTrader: (3)

I fitted a prodrive BCS to mine - saw no difference in spool up but it did hold more boost at the top and this was worth extra power.

Whatever you do - it needs mapping for it else it will overboost. Duties will need reducing by factor of around 0.7 as a starting point.

Slick81

iTrader: (1)

Will definatly be going for the map cos itl most likely get it all done when I get bigger injectors. Hopefully wana get the torque more towards 300 and get over the 300BHP mark.

RB5Caterham

There are some mappers who can work with a 2-port. I have a mate from the RB5 Owners Club who got 319bhp/lbs on a VF28, standard TMIC and engine internals.

Was mapped on the 2-port by Bob Rawle though.

dynamix

iTrader: (3)

Mine was mapped to 356bhp and 402 lb/ft on a 2 port - a 3 port is much easier to map to and will (and does) give more at the top end even for a mapping god like Bob

jd5217

does not the 3port give better control.

dynamix

iTrader: (3)

exactly

Slick81

iTrader: (1)

Thanks guys. Its obviously gona benefit me then, especially if its a cheap little mod. Wont be seeing Bob tho as its a bit far out for me, but have had all my work done from Pavlo @ Zen and have been more than happy , so will be paying him a visit when the time comes .