Boost Issue?! Bypass valve
#16
I don't know about others, but I have a calibrated mechanical aftermarket gauge and the stock pressure gauge (boost is pressure) and the stock and the aftermarket are in close agreement.
It is some kind of urban myth that the stock pressure gauge is inaccurate.
Pressure gauge on the dyno agreed with both stock and aftermarket gauges.
It is some kind of urban myth that the stock pressure gauge is inaccurate.
Pressure gauge on the dyno agreed with both stock and aftermarket gauges.
#19
Professional Hoon
Rennlist Member
Rennlist Member
Join Date: Jan 2010
Location: Melbourne, Australia
Posts: 7,090
Likes: 0
Received 4 Likes
on
4 Posts
By pass valve delete = STu tutututuut
http://www.youtube.com/watch?v=VxKp387_xQM
I actualy done this for a day for a JOKE & it sounded alright but not for out cars
btw i have a MAP so i didnt ruen any sensors or anything.
NOT RECOMMENDED
http://www.youtube.com/watch?v=VxKp387_xQM
I actualy done this for a day for a JOKE & it sounded alright but not for out cars
btw i have a MAP so i didnt ruen any sensors or anything.
NOT RECOMMENDED
#20
Three Wheelin'
The best thing you could do for that car is to remove the intake manifold, buy a Lindsey vacuum/Venturi delete kit, change the bov and j boot. Chances are if the j boot is torn and original, so is everything else.
As for Deleting the bov... Why? If your stock, nothing would really happen. Many old saabs and early jap turbos came without one. It's a great way to lose response between shifts and wear the thrust bearing on the turbo.
Also, running 1.2 bar on the gauge means the klr is in limp mode and opening the cycling valve early for a reason. Something is wrong, but I'd take care of your air leaks first
As for Deleting the bov... Why? If your stock, nothing would really happen. Many old saabs and early jap turbos came without one. It's a great way to lose response between shifts and wear the thrust bearing on the turbo.
Also, running 1.2 bar on the gauge means the klr is in limp mode and opening the cycling valve early for a reason. Something is wrong, but I'd take care of your air leaks first
#21
Three Wheelin'
Join Date: Feb 2007
Location: Indianapolis,IN
Posts: 1,408
Likes: 0
Received 0 Likes
on
0 Posts
Since I'm not running anything but chips, I consider my gauge a "good/not good" boost indicator. If the boost gauge dances on the far right of the scale, its good. If it only gets just past the center, its not good.
Obviously, 20lbs would peg it (and call for a HG), but as long as it has a little dance, I'm happy.
+100 on the venturi delete, vac lines, etc. Diagnosing problems on this machine without knowing these items are good is throwing good money after bad.
Obviously, 20lbs would peg it (and call for a HG), but as long as it has a little dance, I'm happy.
+100 on the venturi delete, vac lines, etc. Diagnosing problems on this machine without knowing these items are good is throwing good money after bad.
#22
Addict
Rennlist Member
Rennlist Member
Join Date: May 2001
Location: Parral, Chihuahua, Mejico
Posts: 929
Likes: 0
Received 5 Likes
on
5 Posts
Soooo........ I go driving today and note that, if you look at the stock pressure gauge from the driver's seat there's not much parallax.
Porsche planned it that way, I'm guessin'.
Porsche planned it that way, I'm guessin'.
#23
Rennlist Member
Thread Starter
Hey guys found my problem... my TPS was loose so it was causing problems with boost and normal driving. Only reason I mention the Bov delete was just curiousity, I have a brand new metal one so it's fully function.
As for the hole in the jboot I did a temp fix, but I have a vacuum leak somewhere and I'm not sure where... I though it would be on the jboot but I plugged it up and there's no air coming from it... My vac gauge (aftermarket) is reading 11hg when it was 20-21hg.. checked all the lines and sprayed carb fluid every where and I can't find it.
As for the hole in the jboot I did a temp fix, but I have a vacuum leak somewhere and I'm not sure where... I though it would be on the jboot but I plugged it up and there's no air coming from it... My vac gauge (aftermarket) is reading 11hg when it was 20-21hg.. checked all the lines and sprayed carb fluid every where and I can't find it.