MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: marka87uk on October 27, 2011, 07:04:59 pm

Title: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: marka87uk on October 27, 2011, 07:04:59 pm

Hi,

I'm going to be getting a HPFP fitted with Autotech internals after reading about good gains even without going Stage 2+.

At the moment my Edition 30 just has a Revo stage 1 remap and Neuspeed intake. I assume it'll play nicely with my set-up as others have reported?

Do you think it's worth getting a SPS switch to tweak the Revo settings to account for the new pump or will the ECU adapt automatically? :smiley:

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: bacillus on October 28, 2011, 03:45:03 pm

The ecu should adapt but you might still be able to increase the boost a notch with the superior fuelling.
NB You should log the car if you change any settings.

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: marka87uk on November 04, 2011, 07:48:23 pm

Cheers! :happy2:

I don't have VAGCOM so buying that and a SPS switch just to get a few more ponies will probably not be worth it.

What would I need to log? Fuel rail pressure actual vs requested? I have a phone app with OBD adapter but it only lists fuel rail pressure and I'm not sure if it's requested or actual.

Out of interest what kind of gains are people seeing with a HPFP on stage 1?

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: bacillus on November 04, 2011, 09:53:18 pm

If the search button would reappear then I would direct you to a post by KRL where he showed that even with stage 1 on a S3 the fuelling is a bit marginal with the oem pump compared to an uprated one.

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: marka87uk on November 04, 2011, 11:25:53 pm

Thanks - KRL's original post is below and is very informative however it does not mention actual bhp/torque gains.

http://www.mk5golfgti.co.uk/forum/index.php?topic=14350.0

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: marka87uk on December 09, 2011, 10:28:25 pm

I just got a HPFP with Autotech internals fitted and it feels good on stage 1 but prior to fitting I did not have the remap on the car, so going back to it is obviously a big difference, and it's hard to tell what difference of that is due to the HPFP!

I'm going to experiment with BTF settings - I'm thinking B7T4F9 would be a good starting point as I can only really run on 97RON fuel in my location.

I understand I could probably raise the boost more for more low down torque but not necessarily more top-end power. What difference would altering the air-to-fuel ratio cause?

What should I log while testing?  :happy2:

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: rich83 on December 09, 2011, 10:33:51 pm

I wouldn't have thought a uprated HPFP, would make any difference at all if the fuel pressure requests are being met!

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: gazbutS3 on December 09, 2011, 10:46:52 pm

Quote from: richwig83 on December 09, 2011, 10:33:51 pm

I wouldn't have thought a uprated HPFP, would make any difference at all if the fuel pressure requests are being met!

maybe the requests are met sooner???

I ran the APR pump before going 2+ and there was a deffinate improvement in response

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: Hedge on December 09, 2011, 10:50:18 pm

Quote from: richwig83 on December 09, 2011, 10:33:51 pm

I wouldn't have thought a uprated HPFP, would make any difference at all if the fuel pressure requests are being met!

Revo push the fuel pump even on stage1. You can get good results with a pump.  :wink:

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: rich83 on December 09, 2011, 11:15:56 pm

Hmmm.... does HPFP have a massive effect on MPG?

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: Hedge on December 09, 2011, 11:58:08 pm

Rich - step away from the Ed30.  :signLOL:

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: rich83 on December 10, 2011, 12:00:01 am

Quote from: Hedge on December 09, 2011, 11:58:08 pm

Rich - step away from the Ed30.  :signLOL:

PMSL! I can't....

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: Hedge on December 10, 2011, 12:15:42 am

You should. Better things to waste your money on.  :wink:

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: rich83 on December 10, 2011, 12:24:30 am

Such as?

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: Hedge on December 10, 2011, 12:31:09 am

I could say house Rich but I wont.  :wink:

Title: Re: Autotech HPFP with Revo Stage 1 - SPS Settings
Post by: marka87uk on December 10, 2011, 10:11:44 am

Thanks guys, as I said I don't know how much difference it'd make with standard Revo settings but it should allow me to run higher boost. :happy2:

Can anyone confirm though...
What should I log when testing?