Uprated fuel pump??
Jan 8, 2002, 08:26 AM
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Uprated fuel pump??
As I'll probably order some parts from Graham Goode, I was thinking about ordering an uprated fuel pump while I'm at it. Does anyone have any experience with that pump?
Maxi, did you need to change your ECU settings when you installed yours, i.e. does it need a new controller?
Maxi, did you need to change your ECU settings when you installed yours, i.e. does it need a new controller?
Jan 8, 2002, 04:56 PM
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MAXI got the one from PE. It is a std replacement pump, fits in place of the OEM pump and needs no ECU mods.
I just got my car back today with the Walbro fuel pump from RC. Odered a FSE fuel pressure regulator as well. Fits just under the strut brace. You need a testing kit to monitor the fuel pressure and set it. In my case, I set it to 4,6 bars at idle and 6,1 bars on full boost.
That setting enables you to lower the AFC settings and run higher boost. But you could run lean with it if you do not monitor the AF ratio with a lamba reader, so I was told not to try upping the boost.
I just got my car back today with the Walbro fuel pump from RC. Odered a FSE fuel pressure regulator as well. Fits just under the strut brace. You need a testing kit to monitor the fuel pressure and set it. In my case, I set it to 4,6 bars at idle and 6,1 bars on full boost.
That setting enables you to lower the AFC settings and run higher boost. But you could run lean with it if you do not monitor the AF ratio with a lamba reader, so I was told not to try upping the boost.
Jan 9, 2002, 03:48 AM
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See, now I don't understand why one pump doesn't need a different controller and the other one does...
Also, the flow rate that RC quote can also be achieved with the one from Graham Goode, how much did the RC one cost?? The one at GRaham Goode is 145 pounds
Also, the flow rate that RC quote can also be achieved with the one from Graham Goode, how much did the RC one cost?? The one at GRaham Goode is 145 pounds
Jan 9, 2002, 03:50 AM
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And one more thing, in the end none of these companies make the pump or have it especially made for them, the pumps will all be standard parts off the shelf from pump manufacturers who I don't know too much about but I imagine there aren't too many of them.
Jan 9, 2002, 06:52 AM
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I think that either PE or GRAHAM GOOD fuel pump will be ok, the interest of buying one from RC DEVELOPMENTS is that it's cheaper and that they can also supply the fuel regulator that will let you increase the fuel flow, and by doing that you can with the apexi stuff raise the boost without getting fuel cuts.
You can do the same thing with the other pump, but rc developments will help you to set everything.
What I don't know is for example, if you fit a ralliart sports ecu/exhaust/filter and 1.5bars boost and a PE fuel pump without any fuel pressure reg, would there be a difference in power or in fuel pressure compared to an engine w/o pe fuel pump, or it's just safe?
You can do the same thing with the other pump, but rc developments will help you to set everything.
What I don't know is for example, if you fit a ralliart sports ecu/exhaust/filter and 1.5bars boost and a PE fuel pump without any fuel pressure reg, would there be a difference in power or in fuel pressure compared to an engine w/o pe fuel pump, or it's just safe?
Jan 9, 2002, 08:47 AM
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I'm not too sure about this whole fuel pump thing. I was told at my local rallye team yesterday that the OEM pump flows enough, even with the Sports ECU, and that they once used a Bosch pump and that it had LESS flow!
Anyway, I have the Walbro pump from RC, their FSE pressure regulator and it flows 4,6 bars at idle and 6,2 at max boost. I played around with the S-AFC and AVC-R settings and am still fine tuning it. But it sure is a very big difference compared to std!
As to whether a fuel pump and regulator is worth buying, I'd rather be on the safe side by spending GBP 240 than sorry.
Anyway, I have the Walbro pump from RC, their FSE pressure regulator and it flows 4,6 bars at idle and 6,2 at max boost. I played around with the S-AFC and AVC-R settings and am still fine tuning it. But it sure is a very big difference compared to std!
As to whether a fuel pump and regulator is worth buying, I'd rather be on the safe side by spending GBP 240 than sorry.
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Jan 14, 2002, 03:36 PM
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Forget about those fuel pumps! My 6, has perfect lambda figures over the whole rev range. This is at 1.4 bar.
Have your car tested first, then decide if you need one. It is typical for our Monaco boys with their 'slow' evo's to get the pump, because 'you must have one'. Posers!
Have your car tested first, then decide if you need one. It is typical for our Monaco boys with their 'slow' evo's to get the pump, because 'you must have one'. Posers!
Jan 14, 2002, 05:07 PM
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Originally posted by N.Ring
Forget about those fuel pumps! My 6, has perfect lambda figures over the whole rev range. This is at 1.4 bar.
Have your car tested first, then decide if you need one. It is typical for our Monaco boys with their 'slow' evo's to get the pump, because 'you must have one'. Posers!
Forget about those fuel pumps! My 6, has perfect lambda figures over the whole rev range. This is at 1.4 bar.
Have your car tested first, then decide if you need one. It is typical for our Monaco boys with their 'slow' evo's to get the pump, because 'you must have one'. Posers!
Jan 15, 2002, 02:54 AM
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Of course I want to keep my pump for my car cause I don't have any fuel cuts, but my idea is to slowly build up my car, i.e. do all the small bits that I can afford now before splashing out for a new ECU and internals. Well, maybe that ain't gonna happen anyway...
ok, ok I'll keep the pump
ok, ok I'll keep the pump
Jan 15, 2002, 03:30 AM
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Hello Michael,
I always go to Boemanns Motorsport: www.boemanns-motorsport.de
He does a lot of prep work for race cars (VLN). He checked our Honda as well (after the race, to see if we were not cheating; especially when we started winning!).
For the lambda values, he put an o2 sensor into the exhaust. Drilled into the cat replacement pipe, welded in a nut, and afterwards covered the opening up nicely.
I always go to Boemanns Motorsport: www.boemanns-motorsport.de
He does a lot of prep work for race cars (VLN). He checked our Honda as well (after the race, to see if we were not cheating; especially when we started winning!).
For the lambda values, he put an o2 sensor into the exhaust. Drilled into the cat replacement pipe, welded in a nut, and afterwards covered the opening up nicely.
