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Go Back   Madabout Kitcars Forum > Mad Build Area > Marlin 5exi builds

Marlin 5exi builds Calling all you sexi builders....sorry 5exi builders, show us your progress.

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Old 20th December 2017, 20:05
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gw302 gw302 is offline
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Default Rebuild & engine conversion

I have been very remiss in getting involved on the forum - this is my second post and I've had a my 5exi for 7 years now :S I wanted to post as I'm embarking on a new project - clearly I didn't have enough fun building her the first time around so I thought I would have another go! My chassis had sadly started to rust - pictures before and after attached - (powder coat peeling on road accessible surfaces) so I've stripped the car, shot-blasted, hot zinc sprayed & powder coated which hopefully will future-proof it for a while! I'm also taking the opportunity to switch the engine from 125bhp (AGN) to 225bhp (BAM - written off TT Quattro @ 66k ) - I hope I haven't underestimated the amount of effort this will all take, and how much more rapid the car will be when re-assembled!
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Old 20th December 2017, 22:07
Leadfoot Leadfoot is offline
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Good luck with that! :-)

Just coming to the end of a rebuild myself. Nearly 2yrs now. No engine swap though..!
I've posted mainly on the MOC site as I didn't find out about Madabout until sometime afterward.
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Old 27th December 2017, 10:10
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Hi and welcome

One of the decsions you are going to need to make, going from a non turbo. What type of air induction. Chargecooler or intercooler. After market ECU or recoded VAG.
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Old 28th December 2017, 21:10
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Well done re re-build, I have my fingers crossed that I'll get it up and running in the next 6 months or so although it's probably wishful thinking...

In terms of those decisions, any advice of what works will be greatly appreciated! Given it's mid-engined and I don't wish to run boost pipes all the way to the intercooler bracket in the front I was planning on using a chargecooler and piping to a second front radiator- unless there is sufficient airflow in the back to cool sufficiently (modify the bodywork to increase airflow)? For air induction I was planning on keeping my current conical K&N air fliter (unless I've misunderstood your question...)

The wiring is going to be complicated - I currently have a recoded VAG ECU but I've just discovered the new ECU from my turbo donor car is different. If I go the recode VAG route I imagine it would be more sensible to keep the ECU that is paired to the engine and swap all the connections on the car side loom to the new ECU socket, then recode the ECU. I don't know anything about aftermarket ECUs - I imagine you get more control over the software but I don't know how easy it would be to wire up.
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