RPW extractors, good bang for buck?
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TimmyD
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Black_FTOGPX
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elmo
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extractors
The RPW extractros definately give a performance increase, exactly how much is hard to explain. They make the car a lot more driveable in the lower rev range and more responsive.
As for value for money??? well thats personal opinion, but personally they are good value and when you get the other mods too they are better value again.
Look at it this way:
Worst case scenario is a 5 or 6 kw increase.
Price is $600
Therrefor you get 1kw per $100, worst case. There are few mods that can be done that will deliver the same value.
Then when (if) you get more mods later they will work with each other to boost the power up, so the 6kw becomes 8kw when you fit the FPR, then maybe 10kw with CAI etc etc
Alternatives? A chip gives 5kw for $1000, Cai does it for 400ish and throtle bodies do it for $600.
Personally, a lot of mods make a car better, one is not going to make a huge difference on their own, but the extractors or maybe CAI are the best places to start, in terms of value....
As for value for money??? well thats personal opinion, but personally they are good value and when you get the other mods too they are better value again.
Look at it this way:
Worst case scenario is a 5 or 6 kw increase.
Price is $600
Therrefor you get 1kw per $100, worst case. There are few mods that can be done that will deliver the same value.
Then when (if) you get more mods later they will work with each other to boost the power up, so the 6kw becomes 8kw when you fit the FPR, then maybe 10kw with CAI etc etc
Alternatives? A chip gives 5kw for $1000, Cai does it for 400ish and throtle bodies do it for $600.
Personally, a lot of mods make a car better, one is not going to make a huge difference on their own, but the extractors or maybe CAI are the best places to start, in terms of value....
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FTO338
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I think we better clarify this here, elmo i assume you talking about flywheel KW right.
DISCLAIMER: The above text is the personal opinion of the author and does not represent the indisputable truth. The author is not responsible for any deaths, injuries or mental illness caused by the above statments.
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TimmyD
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smorison
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TimmyD
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Black_FTOGPX
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smorison
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MADFTO
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Must remember that they are only regulators =)
If your fuel pump isn't going to provide the fuel flow required to maintain a specific fuel pressure, an FPR is useless.
My little take on this:
The whole point of FPRs is to increase the fuel rail pressure with the assumption that required fuel rate will increase when the manifold pressure increases (ie, you're sucking in a lot of air). This will hopefully smooth out any sudden drop in fuel pressure when you suddenly plant the foot to the ground when the engine initially sucks more fuel into it (and a standard fuel regulator hasn't responded to the drop in fuel rail pressure).
Bonus with these FPRs is that the baseline fuel rail pressure can be adjusted, giving a minor increase/decrease in fuel delivery when the injector's open.
Anyways, as steven said they help in throttle response, by minimising the hestiation of an engine going to what. They are also act like a AFC of sorts, you can raise/lower the entire fuel map by increasing/decreasing the pressure of the fuel rail.
All of the above is based on my own assumptions and aren't to be taken as gospel. In fact, nothing that comes from me should be =)))
If your fuel pump isn't going to provide the fuel flow required to maintain a specific fuel pressure, an FPR is useless.
My little take on this:
The whole point of FPRs is to increase the fuel rail pressure with the assumption that required fuel rate will increase when the manifold pressure increases (ie, you're sucking in a lot of air). This will hopefully smooth out any sudden drop in fuel pressure when you suddenly plant the foot to the ground when the engine initially sucks more fuel into it (and a standard fuel regulator hasn't responded to the drop in fuel rail pressure).
Bonus with these FPRs is that the baseline fuel rail pressure can be adjusted, giving a minor increase/decrease in fuel delivery when the injector's open.
Anyways, as steven said they help in throttle response, by minimising the hestiation of an engine going to what. They are also act like a AFC of sorts, you can raise/lower the entire fuel map by increasing/decreasing the pressure of the fuel rail.
All of the above is based on my own assumptions and aren't to be taken as gospel. In fact, nothing that comes from me should be =)))
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smorison
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smorison
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wildfaye
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hmm...since leaning out will get more power...n also save fuel...smorison wrote:er not alwaysGPXXX wrote:FPRs in itself do not give you more power - it helps to provide more fuel for the injectors.
you can use it to lean out the engine as well to try and extract power that way...
however i FPR tends to give better throttle response than provide more power
y the talk about pumping more fuel with bigger capacity fuel pump, fuel injectors and when actually all that is needed is a FRP to get these benefits...
all tis talk confuses me...
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elmo
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fpr
The Rising FPR itself does not give any substantial power increase. It does however allow extra fuel to be delivered which unlocks the full potential of the other mods. There is a noticable flat spot in the power without it.
Normal pressure is about 30psi (i think) and I run mine at about 38psi. You can turn it down on long trips for better economy or crank it up when you need it. The only problem I've had is when it is set to about 42psi and the OAT is about 38 C or better. You start to get excess fuel dumping into the exhaust and a popping noise as you change down gears...
With the FPR set to 32psi or below you can notice the flat spot.
The FPR does not change the duty cycle (how long the injector is open) it just forces slightly more fuel through when it is open, keeping the injector flowing as close to maximum as possible.
Well thats my version anyway...
Normal pressure is about 30psi (i think) and I run mine at about 38psi. You can turn it down on long trips for better economy or crank it up when you need it. The only problem I've had is when it is set to about 42psi and the OAT is about 38 C or better. You start to get excess fuel dumping into the exhaust and a popping noise as you change down gears...
With the FPR set to 32psi or below you can notice the flat spot.
The FPR does not change the duty cycle (how long the injector is open) it just forces slightly more fuel through when it is open, keeping the injector flowing as close to maximum as possible.
Well thats my version anyway...
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smorison
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