I think just maybe put the pump on now it should still run better and wait for the code. Should be along soon as they are a large company, been going for years and have always supplied a good product.
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hi mark,
can you (or awesomeanybody) clarify for me please.
as i understood it, the hpfp is a positive displacement pump, ie it will produce the same volume of fuel every rotation of the camshaft. this is obviously greater than the oem one.
adding a hpfp itself shouldnt increase the power of a car. the extra fuel it can deliver can only be utilised by a different map (opening injectors earlier/longer etc).
you did go stage 2 at the same time you replaced your fuel pump didnt you?
also, i cant remember you replcing you ic yet either have you?
i'd like to get these wrinkles ironed out in my mind as i think apr is the way i'm going to go
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....but gives potential for an increase in performance.
as i thought then.
cheers horace.
hi mark,
can you (or awesomeanybody) clarify for me please.
as i understood it, the hpfp is a positive displacement pump, ie it will produce the same volume of fuel every rotation of the camshaft. this is obviously greater than the oem one.
adding a hpfp itself shouldnt increase the power of a car. the extra fuel it can deliver can only be utilised by a different map (opening injectors earlier/longer etc).
you did go stage 2 at the same time you replaced your fuel pump didnt you?
also, i cant remember you replcing you ic yet either have you?
i'd like to get these wrinkles ironed out in my mind as i think apr is the way i'm going to go
Yer I did go stage 2. But APR do a stage 2 file without pump for the Golf 30's, so Jim told me. But the code hadn't been compiled for the Cupra's ECU.
However it became obvious mine needed stage 2 to take full advantage of the APR exhaust. So in the end my only option was to go for the pump version which had been compiled to get a stage 2 map.
But i have noticed Golf 30's with pump files produce higher figures, so there is still work to be done on mine.
I believe the pump file is able to lift the power in the mid-range, where it wouldn't be possible otherwise due to fuel cutoff. REVO and others appear to get much higher peak power but they may not be pulling the same power levels in the mid-range and sustaining them.
I need to get my logging head on really and go and do some analysis. But been a bit busy of late.
However it could well be the IC that prevents mine pushing more power, but then it also needs a decent intake now.
Its a slippery slope.
ooh, now your contradicting yourself, and this is where the confusion arrises.
a fixed delivery pump can only supply more fuel, not greater pressure fuel. its like a piston in a cylinder, it only moves up and down shifting the same amount of air/fuel/whatever each cycle.
pressure is generated as a result of restriction of flow.
does the ecu not request an increased volume of fuel to be squirted in, as oppose to fuel at a higher pressure.
i just thought the new pump (hpfp) was badly named as it actually provides extra volume not pressure.
still
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Has it been on a RR since you had the pump installed. I thought you had seen a improvement on the road just with the pump installation. I know in truth it needs the map tweaking now to spread the power band more efficiently.
But in all fairness this is what car modifying is like really. You do things that ultimately lead to other requirements and development takes time to perfect.
Mine is still running a stock IC as you know, but mine produces lower peak figures than yours, if my map was tweaked to produce more peak power I'm pretty sure it would require an uprated IC. With the almost non existent summer we have suffered this year, as yet I've not experienced anything I could identify as heatsoak.
But an IC is very much on my to do list. Having run an uprated cooler on my Cupra R, I am fully sold on their advantages.
It's on my to do list to, trouble is lack of funds, gonna have to sell a few things before buying a new I/C
flow and pressure are two different but often confused things.
pressure is generated by restriction of flow, in this instance by closed injectors. the pump could still be doing 1000 cycles a minute, but if its just pumping the fuel from its outlet into a bucket there will be next to no pressure. when its pumping againt closed injectors pressure is generated.
remember, a pump does not generate pressure, it generates flow.
pressure is generated by restriction of flow, in this instance by closed injectors. the pump could still be doing 1000 cycles a minute, but if its just pumping the fuel from its outlet into a bucket there will be next to no pressure. when its pumping againt closed injectors pressure is generated.
remember, a pump does not generate pressure, it generates flow.
It's on my to do list to, trouble is lack of funds, gonna have to sell a few things before buying a new I/C
We all know you pain on that score. I've loads I want and need to do but currently not got a pot to piss in with regards to modding. Overtime is always thin on the ground during the summer hols. But should start to pick up.
It's on my to do list to, trouble is lack of funds, gonna have to sell a few things before buying a new I/C
are you thinking of parting with your camera set-up?
The best price I've seen was the one you got, nobody locally has bothered to call me back with a quote. If only the Forge wasn't so ludicrously priced...
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