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Author Topic: Upgrading Fuel Pump  (Read 9967 times)

Offline Janner_Sy

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Re: Upgrading Fuel Pump
« Reply #15 on: August 24, 2009, 12:04:20 am »
an extra £50 if your already at stage 2

Offline bacillus

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Re: Upgrading Fuel Pump
« Reply #16 on: August 24, 2009, 12:21:53 am »
an extra £50 if your already at stage 2

True but suggest that you also check that the dealer doesn't also want to add in garage time to the overall costing.
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Offline SteveP

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Re: Upgrading Fuel Pump
« Reply #17 on: August 24, 2009, 09:10:44 am »
an extra £50 if your already at stage 2

True but suggest that you also check that the dealer doesn't also want to add in garage time to the overall costing.

A lot will do this now as they like to setup/log the car to make sure everything is running fine  :happy2:

Offline RedRobin

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Re: Upgrading Fuel Pump
« Reply #18 on: August 24, 2009, 10:23:39 am »
an extra £50 if your already at stage 2

True but suggest that you also check that the dealer doesn't also want to add in garage time to the overall costing.

A lot will do this now as they like to setup/log the car to make sure everything is running fine  :happy2:


....A very good idea to check she's running fine, imho - It could cost you more than an extra few squid otherwise if a problem wasn't discovered and sorted. I'd want a dyno session done anyway.


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Offline vRS Carl

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Re: Upgrading Fuel Pump
« Reply #19 on: August 24, 2009, 12:03:28 pm »
Just be aware with Stage2+ On REVO you may not get what you expect on the Dyno.

For some reason i believe the latest Stage2+ REVO code doesn't like the Dyno and no matter what Timing advance you set (even 9) it will show no timing pull whatsoever. Also the car will not request Maximum boost AT ALL throughout the rev range.

However get it on the Road and it all performs as expected. Assuming you have no problems with the Car to start with it will request 2500+mbar of boost and give it from about 2500rpm to around 4200rpm before starting to slowly tail off. The car will also start to show timing pull (dependent on car) from about 4 upwards.

I spent nearly 2 weeks trying to find a phantom problem with my car only to discover it may be the code :confused:

But to highlight it a bit easier (and not to take the thread too far off topic)

I had Stage 2+ flashed (my car has every conceivable mod for a KO3)
 
Stage 2 i had 257bhp and 302lb/ft (only CBE though)

Stage 2 + and TBE i got 264.5bhp and 285lb/ft

After 2 weeks and changing a few parts on the car for brand new ones (plus the car engine was stripped cleaned checked rechecked and put back together 4 TIMES looking for boost leaks etc) the car was put back on the Dyno

Result 265bhp and 287lb/ft  :mad:

When looking at the logs the car (on the dyno) would not request max boost as it should highest was 2450mbar at 4400rpm which is too late and at 2500rpm it was only asking for 2290mbar

However put the car on the road and the following happened (and consistenly over 30+ logging runs)

At 2500rpm the car would request 2500mbar and give 2560 mbar actual (at some points it gave 2580)
This would be held all the way to 4200 rpm where it would start to slowly tail till at approx 6000rpm it was still holding 2100mbar of boost

So the final result was (after some clever calculations from boost logs etc using VCDS):

On the dyno 265.1bhp and 287lb/ft

On the road 282bhp and 331lb/ft

The calculations were checked against the Dyno results and were found to be accurate (within 0.5bhp and 2lb/ft which i knocked off)

So in reality my car has 282bhp and 331lb/ft but on the Dyno shows 265bhp and 287lb/ft

So if you are getting Stage 2+ dont be disheartened by the results

Use VCDS and the instructions on the Rosstech website and you will get a better answer on what your car has

Oh and for those who asked why you need the pump, You can't have Stage 2+ without it AFAIK as its a Fuel Pump tailored map

HTH

Carl :happy2:
« Last Edit: August 24, 2009, 01:36:04 pm by Mater »

Offline john_o

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Re: Upgrading Fuel Pump
« Reply #20 on: August 24, 2009, 12:08:07 pm »
interesting , but like you say you should start a proper thread for this.

the car (or code) doesnt 'know' its on the dyno , so whats the factor indicating it is ? (airflow)
be good to know the type of dyno too  :happy2:
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Offline CarrG

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Re: Upgrading Fuel Pump
« Reply #21 on: August 24, 2009, 12:33:01 pm »
Ah nice one Carl that explains a bit more to me as i've had similar issues on my KO4. Was on the rollers nearly half a day and done our heads in.
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Offline Janner_Sy

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Re: Upgrading Fuel Pump
« Reply #22 on: August 24, 2009, 01:01:17 pm »
good news, JBS now have the Pump internals in stock, so if anyone wants some get in there quick.

mine are in the post as we speak :party:

Offline iainalpine

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Re: Upgrading Fuel Pump
« Reply #23 on: August 24, 2009, 01:01:49 pm »
I found this years ago with the impreza. Vehicle speed against wind speed is great factor to remember. Fans etc used on the rolling road setup are never controlled to match the vehicle speed on the rollers so you never get the same results as when on the road. There are a few rolling roads out there that match fan/wind speed to vehicle roller speed. Or, i should say were out there. Not looked into this for a long time now.

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Offline RobsCupra

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Re: Upgrading Fuel Pump
« Reply #24 on: August 24, 2009, 02:09:37 pm »
good news, JBS now have the Pump internals in stock, so if anyone wants some get in there quick.

mine are in the post as we speak :party:

Awesome news!

How much are they knocking them out for Simon?
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Offline GTIjames

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Re: Upgrading Fuel Pump
« Reply #25 on: August 24, 2009, 02:31:41 pm »
i would advise getting these fitted by a professional or someone who has at least done it before and has a clean environment to work in, unless you are very competent in doing this yourself

although it looks easy as per instructions, its quite an important part your are tampering with and getting dust in it or not fitting properly can no doubt cause issues with your car.

don't want to start a what pump is best argument, but the apr offerings are the only pumps which are tried and tested before been shipped out to you which gives me peace of mind  :happy2:


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Offline Janner_Sy

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Re: Upgrading Fuel Pump
« Reply #26 on: August 24, 2009, 03:07:44 pm »
good news, JBS now have the Pump internals in stock, so if anyone wants some get in there quick.

mine are in the post as we speak :party:

Awesome news!

How much are they knocking them out for Simon?

£305 plus P7P. Im semi competent plus i share a workshop with a load of mechanics so i can call on help if needed.

Offline RobsCupra

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Re: Upgrading Fuel Pump
« Reply #27 on: August 24, 2009, 03:15:51 pm »
Did you order it online? It won't let me select it?
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Offline bacillus

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Re: Upgrading Fuel Pump
« Reply #28 on: August 24, 2009, 03:26:40 pm »
Did you order it online? It won't let me select it?

Are you afraid to speak to someone on the phone??   :wink:
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Offline RobsCupra

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Re: Upgrading Fuel Pump
« Reply #29 on: August 24, 2009, 03:34:28 pm »
I'm in work and I can't really use the phone in my job.   :wink:

I've emailed Mike direct and ordered on thate way.
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