Cheap V6 power upgrades?
Discussion
power valve? looking at investing in one of these for teh sake of £80 to see whether it works at all.
do a search on power valve and a few threads will come up with the links to the manufacturers. A few Phers have them although a lack of before/after reports...
edited to add - Nos is the next step but £200 wont cover it. We anticipate it will be in the region of £1400 but still not sure where to sit the Nos bottle in view of how the roof panels are stored in the boot of an S
>> Edited by shnozz on Tuesday 13th July 14:13
do a search on power valve and a few threads will come up with the links to the manufacturers. A few Phers have them although a lack of before/after reports...
edited to add - Nos is the next step but £200 wont cover it. We anticipate it will be in the region of £1400 but still not sure where to sit the Nos bottle in view of how the roof panels are stored in the boot of an S
>> Edited by shnozz on Tuesday 13th July 14:13
Thanks Phil,
The FSE power boost valve is probably money well spent.
Granada/Scorpio 2.9 Efi (Vert Bolts) 86-92
PBV39430
£69.00
Granada/Scorpio 2.9 Efi (Horiz Bolts) 86-92
VK-384-18-H
£98.00
Range Rover 3.5 efi 85-89
SD1 Vitesse 3.5 v8
PBV38437230
£69.00
Details from FSE: -
HOW DOES THE POWER BOOST VALVE WORK?
The Power Boost Valve is a high performance tuning part which replaces the original equipment valve (fitted to the vehicle).
A range of models are available to suit a wide variety of European cars, which almost certainly includes yours. We are continually developing new designs to expand the number of applications.
We outline the benefits of the Power Boost Valve by drawing a comparison evaluation:
Ref: Original Equipment Fuel Pressure Control Valve
The electric fuel pump supplies fuel at a high pressure to the fuel rail and injectors, which is then regulated by a fuel pressure control valve. Typically, the regulator is not adjustable and is pre-set to a 3 bar maximum pressure. At idle the fuel pressure valve reduces it by 0.5 bar approximately to 2.5 bar. When accelerating quickly from standstill the fuel pressure increases at a proportional rate retaining a lean fuel mixture strength as required by the E.E.C. for new vehicles. However, the resultant effects of the standard valve produce:
lethargic throttle response
occasional drivability problems at slow traffic speeds
intermediate performance 'flat spots' when accelerating
By comparison:
Ref: Power Boost Valve (replacement)
Firstly, this valve has an adjustable fuel pressure, effected by the movement of an adjustment screw on the crown of the unit.
New Power Boost Valves are pre-set with a maximum fuel pressure of 2.5, 3.0 or 3.5 bar, depending on the vehicle in question, and similarly (to the original valve) the fuel pressure is reduced by 0.5 bar approximately at idle. There the similarities end.
On acceleration from standstill the Power Boost Valve fuel pressure will increase at 1.7 times the standard rate. This will produce a healthy, strong fuel mixture strength which will instantly improve the drivability of your vehicle, providing:-
instant throttle response
removal of performance flat spots
faster acceleration
extra engine performance
The regulator enhances engine performance on acceleration by enriching the mixture strength. On constant throttle and cruise conditions the valve returns to a normal regulator function.
The Power Boost Valve is simple to install and in most instances basic fitting instructions are provided. These units are mechanical and are considered maintenance free.
The FSE power boost valve is probably money well spent.
Granada/Scorpio 2.9 Efi (Vert Bolts) 86-92
PBV39430
£69.00
Granada/Scorpio 2.9 Efi (Horiz Bolts) 86-92
VK-384-18-H
£98.00
Range Rover 3.5 efi 85-89
SD1 Vitesse 3.5 v8
PBV38437230
£69.00
Details from FSE: -
HOW DOES THE POWER BOOST VALVE WORK?
The Power Boost Valve is a high performance tuning part which replaces the original equipment valve (fitted to the vehicle).
A range of models are available to suit a wide variety of European cars, which almost certainly includes yours. We are continually developing new designs to expand the number of applications.
We outline the benefits of the Power Boost Valve by drawing a comparison evaluation:
Ref: Original Equipment Fuel Pressure Control Valve
The electric fuel pump supplies fuel at a high pressure to the fuel rail and injectors, which is then regulated by a fuel pressure control valve. Typically, the regulator is not adjustable and is pre-set to a 3 bar maximum pressure. At idle the fuel pressure valve reduces it by 0.5 bar approximately to 2.5 bar. When accelerating quickly from standstill the fuel pressure increases at a proportional rate retaining a lean fuel mixture strength as required by the E.E.C. for new vehicles. However, the resultant effects of the standard valve produce:
lethargic throttle response
occasional drivability problems at slow traffic speeds
intermediate performance 'flat spots' when accelerating
By comparison:
Ref: Power Boost Valve (replacement)
Firstly, this valve has an adjustable fuel pressure, effected by the movement of an adjustment screw on the crown of the unit.
New Power Boost Valves are pre-set with a maximum fuel pressure of 2.5, 3.0 or 3.5 bar, depending on the vehicle in question, and similarly (to the original valve) the fuel pressure is reduced by 0.5 bar approximately at idle. There the similarities end.
On acceleration from standstill the Power Boost Valve fuel pressure will increase at 1.7 times the standard rate. This will produce a healthy, strong fuel mixture strength which will instantly improve the drivability of your vehicle, providing:-
instant throttle response
removal of performance flat spots
faster acceleration
extra engine performance
The regulator enhances engine performance on acceleration by enriching the mixture strength. On constant throttle and cruise conditions the valve returns to a normal regulator function.
The Power Boost Valve is simple to install and in most instances basic fitting instructions are provided. These units are mechanical and are considered maintenance free.
andyf007 said:
Try here for a useful thread.
www.pistonheads.com/gassing/topic.asp?f=11&h=&t=63197
Andy
Thanks Andy, sounds like money well spent.
Mine doesn't pick up as smoothly as I'd like and I attributed this to injectors needing a refurb but others have said the same about throttle response, so I may try the FSE p/b valve first.
spooky; I was speaking to JW Developments yesterday, and they basically said it's £2.5K plus for lightening/pistons/cam and they a "Podie" remap, but don't bother !!
seems the fuel regulator might be the answer (mine on the Austec rolling road was running "normal" for an S3 but showing signs of fuel starvation).
Interested to see how you get on.
Mike
seems the fuel regulator might be the answer (mine on the Austec rolling road was running "normal" for an S3 but showing signs of fuel starvation).
Interested to see how you get on.
Mike
shnozz said:
...
...Nos is the next step but £200 wont cover it. We anticipate it will be in the region of £1400 but still not sure where to sit the Nos bottle in view of how the roof panels are stored in the boot of an S
, now thats frightening 
, re space, shirley the NoS would easily fit either side in the boot, under the wings 
, enough room for two bottles IMHO 
. There'd still be room for the roof, perhaps not quiet so much luggage though Harry
HarryW said:
...
...Nos is the next step but £200 wont cover it. We anticipate it will be in the region of £1400 but still not sure where to sit the Nos bottle in view of how the roof panels are stored in the boot of an S
Harry
Perhaps......
But don't call me Shirley....
HarryW said:
...
...Nos is the next step but £200 wont cover it. We anticipate it will be in the region of £1400 but still not sure where to sit the Nos bottle in view of how the roof panels are stored in the boot of an S
Harry
car is currently with andy at APM and getting a new ticket. Once its back we will be looking into it further. The S is the project car whereas not too sure whats happening with the chim at the moment, I feel the need for more power and the most cost effective way to achieve that is to get a cerbera
shnozz said:
.....whereas not too sure whats happening with the chim at the moment, I feel the need for more power and the most cost effective way to achieve that is to get a cerbera
, may join you in the long term, or sooner 
. Having double the price of mine, sorry correction, spent twice as much as its worth . I can confirm the old adage upgrade........buy a better and faster car . Harry
HarryW said:
Harry
its for that reason i have hardly modified any of my previous cars. When the urge for more power arrives I sell up, add cash injection and go shopping
shnozz said:
Harry
its for that reason i have hardly modified any of my previous cars. When the urge for more power arrives I sell up, add cash injection and go shopping
It's definately the easiest way to get more grunt.
I took a bit of a risk with the ECU re-map, but pound for pound, it's a good mod for the V6 cars.
Podie said:
HarryW said:
Harry
its for that reason i have hardly modified any of my previous cars. When the urge for more power arrives I sell up, add cash injection and go shopping
It's definately the easiest way to get more grunt.
I took a bit of a risk with the ECU re-map, but pound for pound, it's a good mod for the V6 cars.
not only that but the only way in which you ever really see a return on your money come re-sale. I am just not sure I can go "closed roof"
shnozz said:
shnozz said:
HarryW said:
Harry
its for that reason i have hardly modified any of my previous cars. When the urge for more power arrives I sell up, add cash injection and go shopping
It's definately the easiest way to get more grunt.
I took a bit of a risk with the ECU re-map, but pound for pound, it's a good mod for the V6 cars.
not only that but the only way in which you ever really see a return on your money come re-sale. I am just not sure I can go "closed roof"
hmm… closed roof… hmm….
but I would probably still keep the S for the odd sunny day. Rooof down, foot down, noise and open top 
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