What PSI should I be getting? - MY97
14 July 2002, 11:59 PM
#1
Scooby Regular
Thread Starter
iTrader: (6)
Join Date: Jun 2001
Location: Northampton, Xbox GamerTag - Neanderthal1976
Posts: 6,850
Likes: 0
Received 0 Likes
on
0 Posts
Finally got round to fitting my Phantom Boost Gauge. It measures -30 to +30 psi.
When the engines off it's at 0 obviously
Idling it shows -20.
~ Half throttle it's back to about 0
Full throttle 5th gear it hits 14psi at first but then settles down to 13psi. But by this point I'm hitting 110 and rising rapidly so I have to back off.
Is 13psi correct for an MY97, Standard barring an ITG panel filter, baileys atmos DV & BPM twister2 backbox.
I've fitted the boost gauge as a precursor to a Dawes and AFR so I need to be sure that I'm starting off on the right foot
Matt
When the engines off it's at 0 obviously
Idling it shows -20.
~ Half throttle it's back to about 0
Full throttle 5th gear it hits 14psi at first but then settles down to 13psi. But by this point I'm hitting 110 and rising rapidly so I have to back off.
Is 13psi correct for an MY97, Standard barring an ITG panel filter, baileys atmos DV & BPM twister2 backbox.
I've fitted the boost gauge as a precursor to a Dawes and AFR so I need to be sure that I'm starting off on the right foot
Matt
15 July 2002, 12:10 AM
#2
Scooby Regular
Join Date: Oct 2001
Location: Bish,Bash,Bosham!
Posts: 2,204
Likes: 0
Received 0 Likes
on
0 Posts
Yep. My standard MY97 was boosting at 11psi when I fitted the boost guage. Cleaned out the boost solenoid and it then peaked at 14 and held 13psi.
Currently running 15psi held with Dawes, can't say I notice that much difference but hopefully a decat downpipe should sort that out
Jamie
Currently running 15psi held with Dawes, can't say I notice that much difference but hopefully a decat downpipe should sort that out
Jamie
15 July 2002, 12:24 AM
#3
Scooby Regular
Thread Starter
iTrader: (6)
Join Date: Jun 2001
Location: Northampton, Xbox GamerTag - Neanderthal1976
Posts: 6,850
Likes: 0
Received 0 Likes
on
0 Posts
Cheers Jamie!
Guess mine is correct then
Bit upset that you haven't noticed a big difference after using the Dawes though as I was hoping to have a noticable difference.
Did you chance upping it to 16psi? oh and did you bother with an air/fuel meter?
Thought about a decat downpipe or centre section but just too worried about MOT failure to consider it.
Matt
Guess mine is correct then
Bit upset that you haven't noticed a big difference after using the Dawes though as I was hoping to have a noticable difference.
Did you chance upping it to 16psi? oh and did you bother with an air/fuel meter?
Thought about a decat downpipe or centre section but just too worried about MOT failure to consider it.
Matt
15 July 2002, 12:41 AM
#4
Scooby Regular
Join Date: Oct 2001
Location: Bish,Bash,Bosham!
Posts: 2,204
Likes: 0
Received 0 Likes
on
0 Posts
Matt,
I think the boost comes in quicker so it's probably a psychological thing. I know it is quicker as I join a nearby motorway 10mph quicker than I did b4 the dawes was fitted (obviously I used to join it a 60mph 
).
Plus I get used to things really quickly! I haven't got an AFR (yet)but I don't think I am being silly with the boost at the moment - I've read posts of standard UK Turbos holding 15psi
.
I accidently hit fuel cut when setting the Dawes up so and it felt fast at 16psi so I think I might have a play when I get the AFR.
See this thread for Dawes info, and if you're worried about downpipes and MoTs look at this thread.
Have fun
Jamie
I think the boost comes in quicker so it's probably a psychological thing
. I know it is quicker as I join a nearby motorway 10mph quicker than I did b4 the dawes was fitted (obviously I used to join it a 60mph ).Plus I get used to things really quickly! I haven't got an AFR (yet)but I don't think I am being silly with the boost at the moment - I've read posts of standard UK Turbos holding 15psi
.I accidently hit fuel cut when setting the Dawes up so and it felt fast at 16psi so I think I might have a play when I get the AFR.
See this thread for Dawes info, and if you're worried about downpipes and MoTs look at this thread.
Have fun
Jamie
15 July 2002, 08:57 AM
#5
Scooby Regular
Join Date: Dec 2001
Posts: 835
Likes: 0
Received 0 Likes
on
0 Posts
-20 PSI at idle seems very low - would expect approx -9 or 10.
Fuel Cut is at approx 15.5 PSI - should see quicker spool up with dawes.
On TD05 Cars you get more benefit from fast spool up than peak boost - although with the dawes boost will be a lot more stable.
Fuel Cut is at approx 15.5 PSI - should see quicker spool up with dawes.
On TD05 Cars you get more benefit from fast spool up than peak boost - although with the dawes boost will be a lot more stable.
Thread
Thread Starter
Forum
Replies
Last Post
aaron_ions
General Technical
14
25 September 2015 02:33 PM
aaron_ions
General Technical
1
17 September 2015 10:42 AM
