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AUDI V8 3.6 PT ENGINED R33 SKYLINE

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 Post subject: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Fri May 22, 2020 7:09 am 
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Hi all,
I have required a free donated audi V8 engine to fit in a project R33 skyline.

A bit of history on the engine:
It is still fitted to a crashed audi, car is badly damaged, may have been rolled, there is very little straight panels left, car is pretty much intact, as it was purchased from a scrap yard more than 25yrs ago. They had removed the ignition lock and barrel to ensure car would not be fixed and only used for parts.
A gentleman neighbour bought the car as engine was to be fitted to 3 series BMW, but this did not proceed as engine was too wide! He had removed rad, oil cooler, and aircon fin unit.
Now with car sitting with 50k miles on engine, but has not been started for 25+ years.
My mission is to get engine started or turning in audi before removing.
I will supply photos of wiring mess, maybe some one can help!

R33 shell history,
stripped approx 15 yrs ago to build a drift car, then fell though, and shell was stored inside. Real good condition except some surface rust.

The mission, standard nissan front subframe, nissan rear subframe, nissan brakes, maybe nissan diff, or audi if i can make it fit.
Audi 3.6 V8 engine, volvo gearbox,
Trying to keep costs to a minimum but to make car look good and be reliable.



Tnks Matt


Last edited by maddy400r33 on Sat May 23, 2020 10:26 am, edited 1 time in total.

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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Fri May 22, 2020 7:17 am 
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What i know about the audi so far: right hand drive
It is a 3.6 V8 automatic, 50k miles, no ignition, photo to be supplied, car is pretty much complete but damaged. There are two ecu units above fuse box, which one is engine, which is gearbox? I am getting dash light up with crossing wires and a few relays clicking, not much else.
Gear selector is in P park, brakes pedal switches removed from pedal to mimic pedal being pressed, calipers where removed to allow car to be pushed freely


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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Fri May 22, 2020 8:57 pm 
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I have a loose ECM somewhere, but it's a Motronic box...

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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Sat May 23, 2020 2:03 am 
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Thanks, is it a manual ecu?


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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Sat May 23, 2020 10:45 am 
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Here is the good bit. R33 skyline shell.


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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Sat May 23, 2020 10:55 am 
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Wiring for ignition is as follows, 2x reds and 2x black dash lights up. Red&black and 2x black&yellow sends power to relays.

Working on audi today. Got lights on dash.

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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Sat May 23, 2020 11:42 am 
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Found this? Something is missing? Could it be a relay?


2x Red&blue wires, 3xbrown, 1xgreen&grey.


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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Sat May 23, 2020 9:49 pm 
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Audi didn't do anything different 5spd to auto on the ECM, so it doesn't matter, it's all Bosch Motronic (there is one really good chip available that bumped the PT from 250hp to 280-ish). The only difference was in a relay, or rather the lack thereof, on a 5spd car. On an automatic, there was a relay for the P-N safety relay. On the 5spd cars, there was a jumper.

Also, brown in ground in an Audi. I think there were PT/ABH wiring diagrams online. I possibly have them saved on my old computer, it'll take me a bit to dig them out.

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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Sun May 24, 2020 3:51 am 
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cuatrokoop wrote:
Audi didn't do anything different 5spd to auto on the ECM, so it doesn't matter, it's all Bosch Motronic (there is one really good chip available that bumped the PT from 250hp to 280-ish). The only difference was in a relay, or rather the lack thereof, on a 5spd car. On an automatic, there was a relay for the P-N safety relay. On the 5spd cars, there was a jumper.

What would affect car not turning. I will test starter manually first.

Also, brown in ground in an Audi. I think there were PT/ABH wiring diagrams online. I possibly have them saved on my old computer, it'll take me a bit to dig them out.


I would really appreciate this, I cannot find audi V8 pt 3.6 wiring diagram.

Sent from my G3311 using Tapatalk


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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Sun May 24, 2020 10:42 am 
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After some cleaning of all fuses, relays, and spades i have managed to get dash working with digital mpg info etc, also big OK displayed. Engine will turn over! Very happy about this! I cleaned fuel pump relay 10. Tested voltage at pump it drops from 12 to 10v, either fuel tank is empty (as per digital dash display).
Owner did report seized fuel pump! Would it be workable to setup a external pump and temporary fuel tank, jyst to fire the engine? Yeh if there is a chance of firing it back to life! Thats the next goal.
Hopefully if i get hold of a wiring diageam i can then start to eliminate alot of wiring.

Plan is to run audi dash clocks, engine ecu, and maybe diff! Is it electronic and does it lock!
Really high spec car, pity it is so bent and unfixable! It will be parted out soon.


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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Sun May 24, 2020 12:10 pm 
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Location: Seattle, WA (from Indiana)
Interesting choice for an engine. Seems like there are so many much more well supported and powerful engines in the Nissan family than a PT V8, but interested to see how this build goes.

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1992 Porsche 968 (07K transplant in progress)
1983 Aud UrQ (MC1, GT2871R, IIc)
2003 Audi S8 (DD)
Past Audis: 87 CGT, 87 4kcsq, 93 S4, 90 CQ, 87 5ktq, 95.5 S6Avant, 86 CGT CE, 95 90qs 1.8T, 83 UrQ, 87 CGT 7A
Past P-cars: 80 931, 87 924S, 87 951


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 Post subject: Re: AUDI V8 3.6 PT ENGINED R33 SKYLINE
PostPosted: Sun May 24, 2020 3:18 pm 
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Yeh, more powerful & expensive.
Think this 3.6 v8 is 240bhp, higher torque.
Nissan rb25 is 6cyl turbo, 245bhp and starts at 2k for blank engine.

V8 audi 3.6 pt engine was donated! Yeh you wont be the only one whos interested! Im friggin steering this boat!


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