Author Topic: ABF Turbo upgrade vrs AGU ... discussion thread.  (Read 4149 times)

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Offline Mk3GTINut

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ABF Turbo upgrade vrs AGU ... discussion thread.
« on: August 07, 2021, 11:08:53 pm »
Old saying.. no substitute for displacement   ;D  ;D, but does anyone have any opinions on which is the better build???  :-\

ABF, 16v high compression... replace conrods and pistons to lower compression... add turbo... head geared toward NA (More lift and duration)

or

AGU 20v, head  more geared to turbo power output...low lift, shorter duration, better flowed

Either way, will be plumbing in Craig Davis Elec water pump, (therefore post 2000 AGU required I understand).. both have forged Cranks, some AGU have forged rods / pistons but mass produced quality..not good for high output engines..

This will be a race car engine, so will be driven hard.

Thoughts.. discussions and knowledge sharing would be greatly appreciated..

 
« Last Edit: August 07, 2021, 11:12:49 pm by Mk3GTINut »
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Offline Filx

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Re: ABF Turbo upgrade vrs AGU ... discussion thread.
« Reply #1 on: August 13, 2021, 04:38:40 pm »
If you're building the complete engine for racing and using after market engine parts and after market ECU it probably doesn't matter too much. They'll both make plenty of power with a healthy dose of boost.

If you're looking to use more of the factory stuff the 1.8T with the later wideband ME7.x ECU is pretty tuneable compared to everything before it. You can build a 1.8T to 2.0L using a later TFSI crank and stroker rods/pistons - so the displacement will be the same.

Swapping in a TFSI 2L 16v might also be a solution. They're pretty stout out of the box and make good power with just simple bolt ons.
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Offline GLIDN

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Re: ABF Turbo upgrade vrs AGU ... discussion thread.
« Reply #2 on: October 29, 2021, 11:10:56 am »
AGU unless built is still only 350HP stock limit.
I've seen the ABF we decompression plate get a comfortable 265-290hp. with more torque than AGU.

there is a guy in the UK that is or was selling his turbo setup only a couple months ago.
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Offline Period_Correct_

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Re: ABF Turbo upgrade vrs AGU ... discussion thread.
« Reply #3 on: October 29, 2021, 01:11:22 pm »
For a race car in a golf chassis I wouldnít go down the Turbo route. The chassis canít handle it IMO. A good normal aspirated ABF or KR race spec motor will be ample and relatively reliable.
...Nigel Aston
1971 Porsche 911T
1990 Audi Quattro Turbo
2006 Renault Clio 182 ( Cup Pack )
2009 Renault Megane R26

Offline 80 Vert

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Re: ABF Turbo upgrade vrs AGU ... discussion thread.
« Reply #4 on: October 30, 2021, 04:41:19 pm »
Our ex big turbo track car made 250 kw at the wheels, handled that just fine and was a blast to drive.
2010 T5 Transporter TDI  Tuned by Superior Tuning NZ
2003 Jetta Coupe soon to be R36TT
1991 Golf GTI 2.0 TSI swapped
1963 Type 34 Karmann Ghia, turbo 2.0
1990 Porsche 964 911 Carrera 4
1980 1303 Beetle vert, under restoration

Offline Period_Correct_

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Re: ABF Turbo upgrade vrs AGU ... discussion thread.
« Reply #5 on: October 30, 2021, 09:13:13 pm »
Most modern FWDs which are relatively quick seperate the steering pivot from the shock centreline as opposed to
Macpherson. If you Look at the timeline for when the hot hatch Nurburgring LapTime saga started. I think itís related to that. LSDs have always been around but that technology I think has really helped with torque steer and ultimately creating a good drive.
...Nigel Aston
1971 Porsche 911T
1990 Audi Quattro Turbo
2006 Renault Clio 182 ( Cup Pack )
2009 Renault Megane R26