| Author |
Message |
Anu Gunarathna
Tinkerer
NSW
TT
Posts: 48
Reg: 05-2010
|
I just install a boost gauge. if any one can help me to find good vacuum line, that will be really appreciate. i already use a vacuum line from the intake[there are small three vacuum lines come out from the bottom of the intake]. But I cant see any readings in the gauge. I install turbo smart boost gauge [same one in the photo]. When I start the car gauge is goes down and stay at in between 10-20 [below the 0]. I drive it full throttle nothing will happen. If any body can show me the correct vacuum line with photos that will be really appreciate.
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Darren Bauer
Tinkerer
Victoria
Soarer TT
Posts: 90
Reg: 04-2010
|
I want to do this too Anu. Where did you install yours? |
Anu Gunarathna
Tinkerer
NSW
TT
Posts: 49
Reg: 05-2010
|
Darren Bauer wrote on Sunday, August 15, 2010 - 12:00 am:
near air vents. mid of the dash. i will attach a photo later. any idea for vacuum line...? |
Spencer Cameron
TryHard
NSW
JZZ30 (converted Manual)
Posts: 189
Reg: 04-2008
|
This is where I put mine. I'm not sure if its where your supposed to put it but its been working for my boost gauge and controller for years.
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Anu Gunarathna
Tinkerer
NSW
TT
Posts: 50
Reg: 05-2010
|
Spencer Cameron wrote on Sunday, August 15, 2010 - 06:48 am:
I did the same thing. but want work.it reads wrong. like i said before. do you think my turbos dosen't make boost...???? |
Spencer Cameron
TryHard
NSW
JZZ30 (converted Manual)
Posts: 190
Reg: 04-2008
|
Well, I guess that could be it. The reading should still change when you put your foot down though. |
Anu Gunarathna
Tinkerer
NSW
TT
Posts: 51
Reg: 05-2010
|
Spencer Cameron wrote on Sunday, August 15, 2010 - 08:12 am:
any other way to find turbo boost...? just one more thing, did u tap the vacuum line goes to fuel pressure regulater...? |
Aaron Casey
Goo Roo
nsw
'94 jzz30 gttl, 2 mini's one supercharged 
Posts: 2265
Reg: 08-2005
|
basically you need to tap into a line that comes directly off the intake manifold as you need it after throttle body to get both vacuum and boost readings. there is a few fittings that come off at the outside you can t pieceinto one of them and should be fine. they would be at the top middle of the picture above and the fittings point downwards.
if you still continue to only get vacuum reading then you may have a possible faulty gauge |
Aaron Casey
Goo Roo
nsw
'94 jzz30 gttl, 2 mini's one supercharged
Posts: 2266
Reg: 08-2005
|
oh and never tee off your fuel regulator or map sensor lines as if you get a leak you will most likely lean out and engine kaboom $$$ |
Chris Prak
DieHard
WA
JZZ30 Soarer - Twin Snails
Posts: 869
Reg: 12-2006
|
Correct, do not tap off lines that are need for air/fuel readings. I used the one that goes to the heater core, the most rear one coming off the plenum.
Check if the gauge is faulty by using a short line in the engine bay and reving the motor from the throttle body. Also check for kinks in the line.
You really should know if your car is boosting or not... can't you feel or hear it? |
Anu Gunarathna
Tinkerer
NSW
TT
Posts: 52
Reg: 05-2010
|
problem solved. thanks guys. what happen was my vacuum line towards to gauge is jam. i fix it. all good. thanks again. and also i change my vacuum line to heater core.
anyway my car is stock condition. i can hit 10 psi at 3500-4000 rpm. what you guys think. i want to up the boost up to 13-15 psi. how much is the safe level for stock car...? i'm going to use Turbosmart manual boost controller. |
Matt Sartori
DieHard
Western Australia
Rx7
Posts: 770
Reg: 08-2008
|
Anu Gunarathna wrote on Sunday, August 15, 2010 - 01:01 pm:i can hit 10 psi at 3500-4000 rpm. what you guys think.
Sounds about right.
Anu Gunarathna wrote on Sunday, August 15, 2010 - 01:01 pm:i want to up the boost up to 13-15 psi. how much is the safe level for stock car...?
Most people seem to think 14psi is the limit with stock dumps, few people have gone higher with no problems with aftermarket dumps, so its up to you if you want to risk it or not
though i wouldn't wind up the boost without a tune of some sort |
Anu Gunarathna
Tinkerer
NSW
TT
Posts: 53
Reg: 05-2010
|
Matt Sartori wrote on Sunday, August 15, 2010 - 02:17 pm:
Thanks Mate. |
Chris Prak
DieHard
WA
JZZ30 Soarer - Twin Snails
Posts: 873
Reg: 12-2006
|
Also you might hit boost cut (fuel cut) if you boost near 14psi as the manual boost controllers spike a lot on cold nights/days.
With an intercooler, filter, dumps + exhaust your boost will automatically raise and you WILL hit boost cut so you will have to find a way around that by using an aftermarket ECU, piggy-back ECU or Fuel Cut Defender. |
Anu Gunarathna
Tinkerer
NSW
TT
Posts: 54
Reg: 05-2010
|
Chris Prak wrote on Sunday, August 15, 2010 - 09:21 pm:
mate what do you mean by filter. i'm going to upgrade me exhaust tomorrow. 3 inch dump 4 inch cat 3 inch all the way to muffler. let you know... |
Boris Siljanoski
Goo Roo
Western Australia
LS400 + Soarer.
Posts: 1097
Reg: 11-2007
|
Pod Filter - The cone shaped ones. |
Mark Pattel
TryHard
Queensland
RT142 with a 1jz and R154 5 speed
Posts: 110
Reg: 04-2006
|
He just means an aftermarket air filter, like a Pod filter or panel filter. You should wait until you get your exhaust before winding the boost up as you will find it will rise naturally with a more free flowing exhaust. |
Anu Gunarathna
Tinkerer
NSW
TT
Posts: 55
Reg: 05-2010
|
Mark Pattel wrote on Monday, August 16, 2010 - 06:01 pm:
ok. i will let you know guys tomorrow. i make my own BFI instead of POD |
Anu Gunarathna
Tinkerer
NSW
TT
Posts: 56
Reg: 05-2010
|
Anu Gunarathna wrote on Saturday, August 14, 2010 - 07:42 pm:
guys, exhaust upgrade to 3 inch. single setup. all good. i can feel the difference. but boost want go more than 10 PSI...any idea.. |
Chris Prak
DieHard
WA
JZZ30 Soarer - Twin Snails
Posts: 875
Reg: 12-2006
|
did you get dump pipes with that? the system won't be as effective if it has a bottle neck early in the system. |
Anu Gunarathna
Tinkerer
NSW
TT
Posts: 57
Reg: 05-2010
|
Chris Prak wrote on Wednesday, August 18, 2010 - 10:45 pm:
not really. 3 inch front pipe 3 inch cat to 3 inch muffler. single setup |
Chris Prak
DieHard
WA
JZZ30 Soarer - Twin Snails
Posts: 876
Reg: 12-2006
|
Yeah thats the same system I got. Then I put in the dump pipes after and that made a huge difference. Expensive step though as prices range from 400-900 dollars for the pipes alone, then fitting them is another thing. 4hrs labour (if they know what they're doing) charging at 80-100 dollars per hour, you do the maths. |
Darren Bauer
TryHard
Victoria
Soarer TT
Posts: 193
Reg: 04-2010
|
Can someone put a pic of the best hose to tap from? The last hose on my plenum goes to the brake booster and that wouldn't be a good line to tap from! |
Darren Bauer
TryHard
Victoria
Soarer TT
Posts: 197
Reg: 04-2010
|
Is it the last one that points downward? |
Darren Bauer
TryHard
Victoria
Soarer TT
Posts: 200
Reg: 04-2010
|
Anyone? |
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