Author Topic: Boost Controler  (Read 1505 times)

BladeGT

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Boost Controler
« on: 17:12, Sat 10 June 2006 »
Hi, i'm having the following problem: i have just installed a boost controller to control the boost from inside. The problem is that i can't regulate it in small stepst.. Only 0,5 for ex and 1,5 BAR of boost. that's the problem. I have done the cup version modification and installed the bleed vavle(boost controler)  between the actuator input and the carb outlet which is used when Cup modification used.

1. Give advices where to install the bleed valve if using tha standart system, or how to make the current system makes little steps fox ex, 0,6 0,7 0,8,0,9 BAR 1,0.......

alexs307

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« Reply #1 on: 02:22, Sun 11 June 2006 »
it's not good what you have done...you placed the bleed valve in a wrong place,between the actuator and the carb...try this:the hose that comes out from the carb,make a cut on it at about 20cm length far from the carb and insert a plastic T piece...so you have 3 connections...one is this hose,that comes out from the carb...another connection is the one to the actuator...and the final connection will be the bleed valve...ok,you will ask me now what to do with the other end of the bleed valve hoses...you simply leave it in the air...it's like this

000000000000000000000000CARB
00000000000000000000000000|
00000000000000000000000000|
00000000000000000000000000|
0000000ACTUATOR-----------T piece-------------------BLEED VALVE
000000000000000000000000000000000000000000000000|
000000000000000000000000000000000000000000000000|
000000000000000000000000000000000000000000000000|
000000000000000000000000000000000000000000000Open End

Is it clear enough?

I had the same problem when I first made the CUP mod,but soon I realised this is better than placing the bleed valve between carb and actuator...there is a possibility that the raise of boost will not be enough,so you have 0.6bar with closed bleed valve,and 0.9 with fully opened bleed valve...it's a simple thing to fix,meaning you have to put a little restrictor inside the hose that comes out of the carb and goes into T piece...a restrictor is a round piece that has the outer diameter equal to the inner diameter of the hose,this round piece being drilled,so the section through which the air passes is smaller...the raise of boost will be significant,but you have to make several tests in order to get the best adjustment...oh,one more thing...you will have to readjust the actuator lever...please ignore those "0",I couldn;t draw that scheme without them...just follow the interrupted lines

BladeGT

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« Reply #2 on: 11:08, Sun 11 June 2006 »


That's mine bleed valve. it has 3 outputs so i must do the following thing:

1.from the output of the carb  i connect the incoming air to one side of the Boost controler and the other to the actuator
2. the third output that is controled to open by the bleed valve will leave  open and when opening i will increase the boost!?

i'm writnig it again cause mine is with 3 putputs and i think that i don't need that plastic t piece.

Thanks for your advice.. now i need another:) hihi

alexs307

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« Reply #3 on: 15:09, Sun 11 June 2006 »
the method I was reffering to was for a 2 connections bleed valve...yours has three,but I can only suppose which one releases pressure into the atmosphere...from this point I cannot tell which way to go,maybe someone will clear things up...

BladeGT

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« Reply #4 on: 07:56, Mon 12 June 2006 »
ok, i'll try to install it. it's the same as the sistem you told me but without the T piece because the boost controler is the same
         
...Controlable OUTLET
...............|
free out--------free out
...............|
.......THE + - circle

the two free outets are always conected and not controled by the cirle that adjust the boost. so this is the main connection and i use the circular + - controler to open the controled outlet to let the air in the atmosphere.