400bhp is not that much to ask, whats stopping it.
i brought a new one just incase and its the same.
21-11-2006 | 02:23 PM
#84
Banned
Joined: Dec 2002
Posts: 142
Likes: 1
Originally Posted by leecavturbo
RESULTS:
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
21-11-2006 | 02:27 PM
#85
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Joined: Oct 2004
Posts: 2,055
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Originally Posted by chip-3door
Originally Posted by leecavturbo
RESULTS:
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
we know of atleast 1 392bhp motor !!!!
21-11-2006 | 02:28 PM
#86
Part of the Furniture
Joined: Apr 2005
Posts: 189
Likes: 0
From: NORWAY
Originally Posted by leecavturbo
RESULTS:
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
Is it much work to switch over the two gauges?
Not uncommon for gauges to be a couple of psi off.
Exhaust backpressure reading next then? Before and after turbo.
Lars.
21-11-2006 | 02:36 PM
#87
Thread Starter
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Joined: Oct 2004
Posts: 2,055
Likes: 0
Originally Posted by YBP
Originally Posted by leecavturbo
RESULTS:
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
Is it much work to switch over the two gauges?
Not uncommon for gauges to be a couple of psi off.
Exhaust backpressure reading next then? Before and after turbo.
surely if there is a exhaust restriction i could not have anymore post turbo exhaust gas flow,velocity? which i can as i can have more boost if i set it to????
and pre turbo is unlikely as the hotside is huge?
but all possible. not ruling anything owt
Lars.
21-11-2006 | 03:03 PM
#88
Banned
Joined: Dec 2002
Posts: 142
Likes: 1
You could flow eleventy seven thousand BHP on a standard manifold if you had enough pressure one side of it, im not saying it "wont flow it" im saying it may cause a large drop in pressure.
Do you not understand the difference mate
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
so your saying you can not flow more than 315bhp on a std xe manifold ?
we know of atleast 1 392bhp motor !!!!
Do you not understand the difference mate
Originally Posted by leecavturbo
Originally Posted by chip-3door
Originally Posted by leecavturbo
RESULTS:
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
we know of atleast 1 392bhp motor !!!!
21-11-2006 | 03:12 PM
#89
Thread Starter
Advanced PassionFord User
Joined: Oct 2004
Posts: 2,055
Likes: 0
Originally Posted by chip-3door
You could flow eleventy seven thousand BHP on a standard manifold if you had enough pressure one side of it, im not saying it "wont flow it" im saying it may cause a large drop in pressure.
Do you not understand the difference mate
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
so your saying you can not flow more than 315bhp on a std xe manifold ?
we know of atleast 1 392bhp motor !!!!
Do you not understand the difference mate
Originally Posted by leecavturbo
Originally Posted by chip-3door
Originally Posted by leecavturbo
RESULTS:
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
we know of atleast 1 392bhp motor !!!!
its irrelevant that there might not be 1.2bar at the inlet ports as you say cus that pressure wise was increased too and still did not give anymore power.
21-11-2006 | 03:20 PM
#90
Banned
Joined: Dec 2002
Posts: 142
Likes: 1
AAARRRRGGGGHHHHHH
You arent listening to what im saying.
What im saying is that maybe the inlet is very restrictive past that sort of flow, and therefore the turbo is having to work mega hard trying to get any more airflow through it.
Im NOT saying thats definately it, im just saying the test you have done doesnt prove it isnt, all you have tested is upto the manifold.
You arent listening to what im saying.
What im saying is that maybe the inlet is very restrictive past that sort of flow, and therefore the turbo is having to work mega hard trying to get any more airflow through it.
Im NOT saying thats definately it, im just saying the test you have done doesnt prove it isnt, all you have tested is upto the manifold.
21-11-2006 | 03:27 PM
#91
Thread Starter
Advanced PassionFord User
Joined: Oct 2004
Posts: 2,055
Likes: 0
Originally Posted by chip-3door
AAARRRRGGGGHHHHHH
You arent listening to what im saying.
What im saying is that maybe the inlet is very restrictive past that sort of flow, and therefore the turbo is having to work mega hard trying to get any more airflow through it.
Im NOT saying thats definately it, im just saying the test you have done doesnt prove it isnt, all you have tested is upto the manifold.
You arent listening to what im saying.
What im saying is that maybe the inlet is very restrictive past that sort of flow, and therefore the turbo is having to work mega hard trying to get any more airflow through it.
Im NOT saying thats definately it, im just saying the test you have done doesnt prove it isnt, all you have tested is upto the manifold.
tell me if i'm wrong?
21-11-2006 | 03:27 PM
#92
PassionFord Post Troll
Joined: Jul 2004
Posts: 3,446
Likes: 1
From: Nr Ipswich
Originally Posted by leecavturbo
Originally Posted by chip-3door
You could flow eleventy seven thousand BHP on a standard manifold if you had enough pressure one side of it, im not saying it "wont flow it" im saying it may cause a large drop in pressure.
Do you not understand the difference mate
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
so your saying you can not flow more than 315bhp on a std xe manifold ?
we know of atleast 1 392bhp motor !!!!
Do you not understand the difference mate
Originally Posted by leecavturbo
Originally Posted by chip-3door
Originally Posted by leecavturbo
RESULTS:
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
we know of atleast 1 392bhp motor !!!!
its irrelevant that there might not be 1.2bar at the inlet ports as you say cus that pressure wise was increased too and still did not give anymore power.
21-11-2006 | 03:28 PM
#93
Thread Starter
Advanced PassionFord User
Joined: Oct 2004
Posts: 2,055
Likes: 0
Originally Posted by Garage19
Originally Posted by leecavturbo
Originally Posted by chip-3door
You could flow eleventy seven thousand BHP on a standard manifold if you had enough pressure one side of it, im not saying it "wont flow it" im saying it may cause a large drop in pressure.
Do you not understand the difference mate
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
so your saying you can not flow more than 315bhp on a std xe manifold ?
we know of atleast 1 392bhp motor !!!!
Do you not understand the difference mate
Originally Posted by leecavturbo
Originally Posted by chip-3door
Originally Posted by leecavturbo
RESULTS:
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
just been out with pressure readings taken from the turbo outlet and at the plenum . i only had a psi gauge for the pre IC reading which i saw a max of 21psi and the apexi which is reading at the plenum showed a max of 1.25bar ????????????//
it was too much hassle to connect 2 map sensors to the ecu and data log them
When you say "plenum" do you mean the tophat?
If so, bear in mind thats so far up the inlet, that there could easily still be a restriction downstream of it, ie the manifold.
we know of atleast 1 392bhp motor !!!!
its irrelevant that there might not be 1.2bar at the inlet ports as you say cus that pressure wise was increased too and still did not give anymore power.
21-11-2006 | 03:31 PM
#94
PassionFord Post Troll
Joined: Jul 2004
Posts: 3,446
Likes: 1
From: Nr Ipswich
Originally Posted by leecavturbo
Originally Posted by chip-3door
AAARRRRGGGGHHHHHH
You arent listening to what im saying.
What im saying is that maybe the inlet is very restrictive past that sort of flow, and therefore the turbo is having to work mega hard trying to get any more airflow through it.
Im NOT saying thats definately it, im just saying the test you have done doesnt prove it isnt, all you have tested is upto the manifold.
You arent listening to what im saying.
What im saying is that maybe the inlet is very restrictive past that sort of flow, and therefore the turbo is having to work mega hard trying to get any more airflow through it.
Im NOT saying thats definately it, im just saying the test you have done doesnt prove it isnt, all you have tested is upto the manifold.
tell me if i'm wrong?
The problem is if you have a sufficeint restriction in your vauxhall air pump* you may up the pressure by 50% but only get a 5% increase in flow, and hence horsepower.
*Air pump - a stu@MSD licensed explanatory term!
21-11-2006 | 03:42 PM
#95
Banned
Joined: Dec 2002
Posts: 142
Likes: 1
5psi more at the tophat might have increased pressure at the valve by .1psi for all you know, thats my point, you dont know (neither do i!)
but increased boost at the plenum would of increased boost at the valve (maybe not by the same amount but never the less more), however the engine did not use that extra air flow/volume . ????
tell me if i'm wrong?
Originally Posted by leecavturbo
Originally Posted by chip-3door
AAARRRRGGGGHHHHHH
You arent listening to what im saying.
What im saying is that maybe the inlet is very restrictive past that sort of flow, and therefore the turbo is having to work mega hard trying to get any more airflow through it.
Im NOT saying thats definately it, im just saying the test you have done doesnt prove it isnt, all you have tested is upto the manifold.
You arent listening to what im saying.
What im saying is that maybe the inlet is very restrictive past that sort of flow, and therefore the turbo is having to work mega hard trying to get any more airflow through it.
Im NOT saying thats definately it, im just saying the test you have done doesnt prove it isnt, all you have tested is upto the manifold.
tell me if i'm wrong?
21-11-2006 | 04:00 PM
#99
Banned
Joined: Dec 2002
Posts: 142
Likes: 1
Originally Posted by leecavturbo
Originally Posted by JohnnyB
I have known bad mapping from them
your transmission losses and weight are different.
21-11-2006 | 04:01 PM
#100
Professional Waffler
Joined: May 2003
Posts: 30,980
Likes: 9
From: barry-south wales
Originally Posted by leecavturbo
Originally Posted by JohnnyB
I have known bad mapping from them
21-11-2006 | 04:06 PM
#101
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Originally Posted by GARETH T
Originally Posted by leecavturbo
Originally Posted by JohnnyB
I have known bad mapping from them
21-11-2006 | 05:11 PM
#103
Part of the Furniture
Joined: Apr 2005
Posts: 189
Likes: 0
From: NORWAY
Re: 400bhp is not that much to ask, whats stopping it.
Originally Posted by leecavturbo
Another thing that is funny about this is the torque curve.
With full boost by 4k i would expect max tq just past full boost on 252deg cams.
You don´t reach peak torque until 5300rpm?
Why so bad VE on 4k with those nice and mild cams?
21-11-2006 | 05:32 PM
#104
Originally Posted by leecavturbo
Originally Posted by GARETH T
Originally Posted by leecavturbo
Originally Posted by JohnnyB
I have known bad mapping from them
I thought it might need another rebuild by the time you figured it out
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