Polo 4.2 V8 Transplant

Started by Lee, April 22, 2009, 08:33:11 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

wilco

'...and fits the Polo engine bay with room to spare."  A masterful statement of relativity Lee!

W.

Lee

It's true --the chain engine is about 50mm shorter and about 60mm narrower than the BFM belt drive V8..

Had it out on the road today before it's WOF next week...It's not tuned properly yet so yes  it's fast but not devastating yet

Whole car is still around  1050kg ...

Getting there.....

Lee

THis is the old BFM motor that I was running in the Polo

http://www.trademe.co.nz/Browse/Listing.aspx?id=782343825

And this is the computer to run it

http://www.trademe.co.nz/Browse/Listing.aspx?id=782389936

PM me if interested

Lee

#243
Just a quick update

Car is registered and warranted and dynoed to 291hp@ the wheels

Torque is basically flat from 1800rpm to redline 241-247 foot lb

So back on the road and usable again


wilco

Wow! Cool.  Must catch up again!

RS ZWEI

Quote from: Lee on November 10, 2014, 01:17:44 PM
Just a quick update

Car is registered and warranted and dynoed to 291hp@ the wheels

Torque is basically flat from 1800rpm to redline 241-247 foot lb

So back on the road and usable again

Thats awesome. Any new pics?
1980 VW Golf GTI Track Car
1995 Audi RS2
2003 Mini Cooper S (Written off - rear ended)
2005 Mini Cooper S
2006 Skoda Octavia vRS Combi
2009 Renault Megane 230 R26 (Written off - rear ended)
2013 Renault Megane RS265 Redbull RB8

Stickman

Pics and video please! Very keen to see this animal!
I like fast toys.

2016 Audi RS6 Performance
2007 Audi RS4

Filx

Nice work, 291hp - performance must be stout! I would love to see some updated pics as well.  8)
FAIL - First Attempt In Learning

Lee

Hi guy's

Next step

RS ZWEI

1980 VW Golf GTI Track Car
1995 Audi RS2
2003 Mini Cooper S (Written off - rear ended)
2005 Mini Cooper S
2006 Skoda Octavia vRS Combi
2009 Renault Megane 230 R26 (Written off - rear ended)
2013 Renault Megane RS265 Redbull RB8

Lee

Suzuki 1000 42mm ITB's which fit on the A4 short manifolds which fit the v8 inlet perfectly.

polo 3

Verry nice project, i think the sound is great aswel!
Quick question, where did you get the adapter to fit the VR6 gearbox on the V8 engine?

And what flywheel with clutch are you using?


Lee

Hey

It is now seven years since I was working this project and it  has been since sold to a guy in Dunedin who is further developing it as a road car.

but  to answer your question the flywheel and clutch is just  standard VR6.

The adaptor  plate was just hand made.

Cheers

polo 3

Thanks for the reply.
Does the original flywheel fit in one go on the V8 crank?
Or does it need modifications?

I can see there are adapters for sale to mount a VR6 engine on to the Audi gearbox, but not the other way around.

Can i ask how you made it, and how did you manage to align the gearbox main shaft to the center of the engine crank?
And was it 2 cm steel, or alloy?

Thanks again for your reply.


Lee

If I remember correctly yes the VR6 flywheel will just bolt on.
As I used a Golf diesel 5 speed box the starter motor fits fine, although the flywheel needed to be packed out slightly.
To make the adapter plate was just making a paper out line of  surfaces and cutting out it out of 10mm steel.
The key to getting them aligned is turning up a plug that inserts into the crankshaft and slides over the gearbox shaft.
Also with the V8 there is little room for the driveshaft gearbox flange and I had to use a smaller dia CV.
It is possible

polo 3

Okay, so you used a Golf 4 diesel gearbox?
Or a Golf 3 VR6 gearbox with the diesel starter motor?

You had to shimm the flywheel a little on the crankshaft to stick it out far enough to make the starter motor work?

So on the right side of the gearbox you used a smaller flange with cv, do you still know from what car that was?

How did it drive when it was ready?
Could the original shocks handle the weight, and would the nose turn correctly in corners?

I am thinking about building a front V8 mounted engine, or a mid mounted engine.

I am first looking for the best way to do it, it also needs to be safe and road legal.


Lee