Do you see lower boost on lower gears?
#1
73 13B 4 port
Thread Starter
iTrader: (1)
Join Date: Nov 2004
Location: atlanta
Posts: 882
Likes: 0
Received 0 Likes
on
0 Posts
Do you see lower boost on lower gears?
Hey guys, just a plan simple question I have. I have my seq. setup for around 14 psi, around .95 bar on my PFC. I guess whenever I hit WOT on 1st and 2nd gear, my boost never goes over .85 bar, but most of the time on 3rd and 4th, I will hit .95 bar perfect. Is this normal? I would assume because of the load, the turbo gets more air at higher speed and hince more boost? Is there a fix to this, I would like to see slightly higher boost on lower gears and keep my higher gear about the same. Any advise?
#2
Rotary for life!
Same thing is happeneing to me. I get 10-8-5 or something through first and second, but through third, fourth and fifth I get 10-8-10... not sure of the problem though! Anyone!?
#4
The Power of 1.3
Join Date: Aug 2001
Location: Shrewsbury, Massachusetts
Posts: 2,837
Likes: 0
Received 0 Likes
on
0 Posts
I get a really slow boost building in 1st 2nd and 3rd, I have to roll onto it very gently to get boost at all. I have a broken check valve however.
I did some searching to try to find my problem, and the general consensus was that boost should be the same in every gear, +/- 1 psi or so. Low boost in low gears could be attributed to sitcking solenoids and or broken check valves. So probably start there.
rotorypolo, 14psi on the stock twins? Yikes. How long have you been running that boost level?
I did some searching to try to find my problem, and the general consensus was that boost should be the same in every gear, +/- 1 psi or so. Low boost in low gears could be attributed to sitcking solenoids and or broken check valves. So probably start there.
rotorypolo, 14psi on the stock twins? Yikes. How long have you been running that boost level?
#5
All out Track Freak!
iTrader: (263)
Join Date: Jul 2001
Location: Charlottesville VA 22901
Posts: 10,672
Received 412 Likes
on
250 Posts
Most likely the turbos are a little tired or you just need a better boost controller.
In the higher gears you're making more exhaust so getting higher boost even with the older turbos isn't too difficult.
In the higher gears you're making more exhaust so getting higher boost even with the older turbos isn't too difficult.
#6
Magic Triangles no more!
Join Date: Mar 2007
Location: Tampa, FL
Posts: 285
Likes: 0
Received 0 Likes
on
0 Posts
Mine runs a lb or two lower in 1st and 2nd gear.
There isn't enough or as much load in 1st and 2nd gear to build as much boost. Especially when you are spinning the tires.
There isn't enough or as much load in 1st and 2nd gear to build as much boost. Especially when you are spinning the tires.
Thread
Thread Starter
Forum
Replies
Last Post
CaptainKRM
2nd Generation Specific (1986-1992)
14
08-26-15 09:52 PM
armans
3rd Generation Specific (1993-2002)
5
08-15-15 09:08 PM