General > Product Reviews
Autotech HPFP with Revo Stage 1
berto:
--- Quote from: KRL on May 06, 2010, 02:37:45 pm ---
Performance
I am really surprised by how much difference this had made to the performance of the car. It has never felt this strong! I did not do any dyno's but I can really feel the difference this has made and I am a happy bunny! I feel like I have more power and more torque everywhere in the rev range. The car feels far more consistent with its power delivery which I put down to the fuel rail constantly maintaining the requested pressure.
With REVO the pump has allowed me to tweak the settings far beyond what I could run with the OEM pump. This will be a big factor in the difference it has made to the car. On other non adjustable remaps you may not feel as much of a difference. The car feels smoother at WOT and in normal driving. I have not noticed a change in MPG.
The extra boost brought some more sounds to life from my Twintake and DV as well. The Twintake is fluttering more on turbo spool and the DV is making a more high pitched noise which is all good :)
--- End quote ---
Hi!
I've a question for you, or any other person that reads this and tried the same
did you got extra performance with the same settings or after tweaking settings?
do you have logs before and after pump upgrade apart of the new rail pressure with the same settings? differences in specified boost or other parameters?
as I suppose the target lambda should be the same and the actual lambda reached target lambda
thanks in advance
PS: I understand that this was in a S3 TFSI stage 1, right?
RedRobin:
--- Quote from: berto on December 27, 2012, 08:03:01 am ---Hi!
I've a question for you, or any other person that reads this and tried the same
did you got extra performance with the same settings or after tweaking settings?
do you have logs before and after pump upgrade apart of the new rail pressure with the same settings? differences in specified boost or other parameters?
as I suppose the target lambda should be the same and the actual lambda reached target lambda
thanks in advance
PS: I understand that this was in a S3 TFSI stage 1, right?
--- End quote ---
....With the OEM pump on my Mk5 GTI 2.0T FSI, my logs at JKM showed that my Revo 2 settings needed adjustment to accommodate the fact that, since fitting a Forge Twintake the air fuel mix was occasionally causing hesitation under sudden wide open throttle (such as starting a fast overtake).
Since fitting an APR high pressure fuel pump my car feels stronger and smoother throughout the rev range, obviously due to a more suitable air-fuel mix. My Revo 2 settings are now back up to B7 / F7 / T5.
berto:
--- Quote from: RedRobin on December 27, 2012, 10:50:00 am ---
--- Quote from: berto on December 27, 2012, 08:03:01 am ---Hi!
I've a question for you, or any other person that reads this and tried the same
did you got extra performance with the same settings or after tweaking settings?
do you have logs before and after pump upgrade apart of the new rail pressure with the same settings? differences in specified boost or other parameters?
as I suppose the target lambda should be the same and the actual lambda reached target lambda
thanks in advance
PS: I understand that this was in a S3 TFSI stage 1, right?
--- End quote ---
....With the OEM pump on my Mk5 GTI 2.0T FSI, my logs at JKM showed that my Revo 2 settings needed adjustment to accommodate the fact that, since fitting a Forge Twintake the air fuel mix was occasionally causing hesitation under sudden wide open throttle (such as starting a fast overtake).
Since fitting an APR high pressure fuel pump my car feels stronger and smoother throughout the rev range, obviously due to a more suitable air-fuel mix. My Revo 2 settings are now back up to B7 / F7 / T5.
--- End quote ---
Hi!
looks like spools too fast to achieve the specified boost and overpasses it, and for that boost / airmass wasn't enough fuel and the hesitation it's the correction..
K03 turbos spools faster than K04 and are more common fuel cuts errors
the question it's in the logs after pump upgrade with the same settings, the specified boost in channel 115 was higher? changed lambdas of channel 031?
my doubt is:
in a stage 1 car that runs always smooth, reach specified boost, reach specified lambdas despite the fact there are differences in rail pressure, may achieve any improvement if reaches the specified 130 bar always?
maybe the lack of pressure causes more opening time of fuel injectors and compensates it to achieve the correct lambda, and while can be compensated wouldn't be any difference in performance (not if other specified settings require more fuel that can reach / mantain target lambda)
or maybe will ask for more boost with the same settings if ECU 'sees' can mantain that? but this is strange as in the same car, if you raise boost setting achieves higher boost.
AndrewJB:
my cars been APR Stage1 for a fair few months now but i recently decided to take advantage of the APR Sale and purchase a APR Pump, APR then flashed a new map Stage1+
On the road the difference can be felt through the rev range
Car is a 2.0TFSI LCR,With APR HPFP,Neuspeed CAI and APR Stage1+ , Soon to be addind Downpipe,RS4 valve and Stage2+
berto:
--- Quote from: AndrewJB on December 27, 2012, 05:39:29 pm ---my cars been APR Stage1 for a fair few months now but i recently decided to take advantage of the APR Sale and purchase a APR Pump, APR then flashed a new map Stage1+
On the road the difference can be felt through the rev range
Car is a 2.0TFSI LCR,With APR HPFP,Neuspeed CAI and APR Stage1+ , Soon to be addind Downpipe,RS4 valve and Stage2+
--- End quote ---
sounds nice the improvements of a HPFP, everybody says the most noticeable upgrades are stage 2 to 2+, but I don't know the effects of it in a non-specific remap for upgraded HPFP
Did you try the pump without the 1+ remap upgrade? only stage 1
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