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Model specific boards => Golf mk4 => Topic started by: supra_ash on 28 January 2015, 15:36

Title: differences in mk 4 engines
Post by: supra_ash on 28 January 2015, 15:36

its been awhile but if i remember correctly mk4's have an AUM and an AGU ?
ive tried the search but cant seem to find what the differences are.

am i right in thinking the AUM has the ko3s turbo and the AGU have the ko3?

im looking to buy a mk4 but i need to make sure i buy whats right for me.
do they have the same internals ect... ?
looking for whats the best to mod for more power

Title: Re: differences in mk 4 engines
Post by: jv on 28 January 2015, 15:50

This has only been read 25 thousand times:

http://www.golfgtiforum.co.uk/index.php?topic=40194.0

:tongue:

Title: Re: differences in mk 4 engines
Post by: supra_ash on 28 January 2015, 16:04

ahh re-read it and reply#8 gives me what i need to know
the agu is the one to go for when wanting higher power due to internals.
with an agu fitting a ko4 and bigger injectors ect.. can the stock ecu be mapped for this or would it need a standalone or piggyback ecu?

Title: Re: differences in mk 4 engines
Post by: barrym381 on 28 January 2015, 18:51

Quote from: supra_ash on 28 January 2015, 16:04

ahh re-read it and reply#8 gives me what i need to know
the agu is the one to go for when wanting higher power due to internals.
with an agu fitting a ko4 and bigger injectors ect.. can the stock ecu be mapped for this or would it need a standalone or piggyback ecu?

it can be mapped on its own ecu  :smiley:

Title: Re: differences in mk 4 engines
Post by: supra_ash on 29 January 2015, 11:24

thankyou

Title: Re: differences in mk 4 engines
Post by: Wazzzer on 29 January 2015, 18:46

big power can still be had from the AUM so don't let the extra 1mm size on the wrist pins and bigger ports sway your judgment (as that essentially is the only difference on the engines)

Title: Re: differences in mk 4 engines
Post by: benmanc on 29 January 2015, 20:51

To hijack this thread and make it useful... Whas the difference between standalone ecu? Whats that mean?

Title: Re: differences in mk 4 engines
Post by: rockmonkey69 on 29 January 2015, 20:59

Quote from: benmanc on 29 January 2015, 20:51

To hijack this thread and make it useful... Whas the difference between standalone ecu? Whats that mean?

An aftermarket ecu which replaces the standard ecu entirely. Piggyback ecu works as an addon to the standard ecu.

Title: Re: differences in mk 4 engines
Post by: Wazzzer on 30 January 2015, 13:16

Not a bad way to spend ten thousand dollars

Title: Re: differences in mk 4 engines
Post by: supra_ash on 30 January 2015, 14:04

Quote from: Wazzzer on 29 January 2015, 18:46

big power can still be had from the AUM so don't let the extra 1mm size on the wrist pins and bigger ports sway your judgment (as that essentially is the only difference on the engines)

thanks bud

Title: Re: differences in mk 4 engines
Post by: supra_ash on 30 January 2015, 14:06

Quote from: benmanc on 29 January 2015, 20:51

To hijack this thread and make it useful... Whas the difference between standalone ecu? Whats that mean?

as above,
the reason i asked is that with a supra you need a standalone or a piggyback ecu, you cant just map the stock ecu for your upgrades.
good to know the golf's ecu is fine :)

Title: Re: differences in mk 4 engines
Post by: rockmonkey69 on 30 January 2015, 18:33

Quote from: Wazzzer on 29 January 2015, 18:46

big power can still be had from the AUM so don't let the extra 1mm size on the wrist pins and bigger ports sway your judgment (as that essentially is the only difference on the engines)

I can confirm this, currently running 492bhp on low boost on an AUM with standard inlet manifold and head

Title: Re: differences in mk 4 engines
Post by: supra_ash on 31 January 2015, 01:08

thanks bud thats more than enough :)
but i cant help myself, i was going to keep my supra stock but its far from stock now  :smiley:
good to know for future plans

Title: Re: differences in mk 4 engines
Post by: rockmonkey69 on 31 January 2015, 09:01

Should of said I do just mean the small port head is fine, bottom end need some work, particularly the rods, but that applies for all 1.8t engine codes running circa 300ft-lb or more

Title: Re: differences in mk 4 engines
Post by: supra_ash on 31 January 2015, 15:41

thanks bud

Title: Re: differences in mk 4 engines
Post by: RnP on 01 February 2015, 10:41

Quote from: Wazzzer on 30 January 2015, 13:16

Not a bad way to spend ten thousand dollars

Made me  :grin:

Title: Re: differences in mk 4 engines
Post by: supra_ash on 09 February 2015, 10:18

ive ended up going with neither and i have just bought a ARZ
seem to have got it for a very good price and is very clean.
looking to have it mapped soon