Author Topic: Anyone had a go with a G45 yet?  (Read 1732 times)

Offline ereeiz

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Anyone had a go with a G45 yet?
« on: August 06, 2013, 11:17:27 am »
As above really. Curious to know how it compares to a standard/ ported charger, etc. Is it useable or does it make the throttle like an on/off switch, etc.

Offline z3i

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Re: Anyone had a go with a G45 yet?
« Reply #1 on: August 06, 2013, 11:20:22 am »
Id like to know this too :)
are they ok with 65mm pulleys? Whats the max boost and are they reliable, well by reliable i mean any less reliable than a g40?

Offline dekerf1996

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Re: Anyone had a go with a G45 yet?
« Reply #2 on: August 07, 2013, 11:56:24 pm »
Certainly look interesting, there has been a fair amount of r&d over in Germany from what I can tell

Need part of a g60 charger and a g40 charger to make one so wrecks the g60

Certainly would like to find out the limits on a well speced engine

Offline ereeiz

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Re: Anyone had a go with a G45 yet?
« Reply #3 on: June 09, 2017, 02:19:40 pm »
Curious to know if anyone's got one yet?

Do they sound different? I imagine a bit more of a burble/gurgle as it's flowing more air.

Anyone know of any vids? Even better if they're before/ after comparisons.

I read a review on the maxrpm site (translated from French);


Excellent achievement - Reliability +++ Cedrick G., 27.11.2014

Product ordered from France, super fast delivery (less than a week), simple and effective communication.
The compressor arrives very clean and totally reconditioned, oiled and greased generously, look origin like a new part. The parts provided in exchanges are genuinely exchanged by a compressor already ready.
Nothing to do with the prepaid cans of the pseudos specialists of the G in France, which I paid, as many of us I suppose ...
Almost every day use in the 5PK pulley of 68mm, 1 bar at 6000trs / min, 1800km without any worries, no running-in, increased pressure over the entire curve of the speed makes the impression to have a prep overhand and torque while only the compressor Is responsible.
Ideal for not getting into the big G60 changes and not disfiguring his polo.
I would do it again without hesitation.
The strength of the G is with you! O)
Cédrick GILLES - France

Offline Agent47

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Re: Anyone had a go with a G45 yet?
« Reply #4 on: January 07, 2018, 10:58:37 pm »
Still on the look out for a video?
https://www.youtube.com/watch?v=eAXJr59SKDw
Still tempted if only i could find a g60 displacer!

Offline ereeiz

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Re: Anyone had a go with a G45 yet?
« Reply #5 on: January 16, 2018, 07:14:03 pm »
Oh my God, who the hell is driving? Stabby throttle much? Interesting that they seem to corner the opposite of how you're meant to! 😂 piss taking aside, it sounds alright I think.

Offline Agent47

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Re: Anyone had a go with a G45 yet?
« Reply #6 on: January 18, 2018, 09:51:50 pm »
Is all a bit clumsy! Im pretty much set on getting one now. Figure if im going to pretty much a full rebuild i can sacrifice a few extra pounds and my spare charger for something a bit unique.

Offline ereeiz

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Re: Anyone had a go with a G45 yet?
« Reply #7 on: January 24, 2018, 06:28:52 pm »
That's my thoughts. I'm skint now, my car's in bits and it's a fully ported, recently serviced charger.  So I have no excuse to get one. I'll still get one though I think. One day.....

Offline Agent47

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Re: Anyone had a go with a G45 yet?
« Reply #8 on: January 26, 2018, 09:12:12 pm »
Hahahaha snap! Just finished stripping the block, now have to start buying the bits to get it back together. Getting a g45 regardless, if it isn't in the car, it's not going to run until it is! Hopefully sometime in the summer, that'll be getting close to 3 years off the road and i miss it.

Offline Matty!

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Re: Anyone had a go with a G45 yet?
« Reply #9 on: June 26, 2018, 08:19:07 am »
My curiousity with the G45 is, I have a Jabba R1 Or Stage 5 charger on mine and wonder if a standard G45 would be the same or more than a heavily ported charger out the box?


« Last Edit: June 26, 2018, 08:23:31 am by Matty! »

Offline ereeiz

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Re: Anyone had a go with a G45 yet?
« Reply #10 on: June 28, 2018, 05:21:33 pm »
I'm a bit busy right now but I'm sure I've posted a table on here with the flow rates of each. I will come back to this later and reply with info.

I think the G45 was best, but really a standard G60 beat any form of G40/G45. So kinda makes you question if it's worth it or not. I still say yes, I'd buy a Golf or Corrado if I wanted G60 and even fitted a G40 engine to a mk2 Golf with great success (felt quicker than a mates G60, especially on cornering and acceleration).

It's still on my unrealistic "I'll buy that next" list, which I'm slowly getting through, just need a garage to store it in and work on it to get it running before spending more on it!

Offline Agent47

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Re: Anyone had a go with a G45 yet?
« Reply #11 on: June 28, 2018, 11:31:12 pm »
Based on a G40 supercharger
Airflow G40: 566ccm³ per rotation
Airflow G45: 635ccm³ per revolution (+12%)
Boost pressure increase: +0.35 bar
This boost pressure increase effekt a bigger torque in the complete RPM range

Not sure if you can work out/find what a ported charger would be but that should help.

Offline polo classic

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Re: Anyone had a go with a G45 yet?
« Reply #12 on: June 29, 2018, 09:20:43 am »
I belive the G60 is in the 830-864 ccm3 region...

Offline Matty!

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Re: Anyone had a go with a G45 yet?
« Reply #13 on: June 29, 2018, 07:20:24 pm »
Yeah well a G60 is a mess on and I want to keep the fittment pretty OEM.

Its a tough one isnt it, the only other idea is to get a G45 then port that, so your are at a win win, see vids on youtube of them getting around 180-190 bhp, but then you see some Glader cars doing that also.

I will probably go for it at some point definately, but I would ship the car to Roetelle and get them to map it also.