Ok seeing as my last post appears to have generated some curiosity I may as well continue...
So as many of you that have followed the thread for a while you'll know that my donor engine came with a Mamba K04 hybrid turbo and Relentless Pro4 manifold.
In all fairness they were / are both performing perfectly well and still relatively new but since the transplant I was never 100% happy with the position the manifold placed the turbo and downpipe.
Very limited space and coincidentally meant I had to fabricate a spacer for the dogbone mount to tilt the engine slightly away from the steering rack and bulkhead, certainly not ideal.
Anyway after many months of it playing on the back of mind I decided I'd attempt to source a ported Chinafold manifold to resolve the clearance issue.
Also the more I looked into K04 frame turbo manifolds (or the sheer lack of decent aftermarket options) I became very quite obvious that many people run into problems running the Relentless ones.
Most notably been with them cracking or snapping!
Several months further down the line and continued failure to source a suitable replacement I came across an almost new and complete Badger 5 AET380 K04 hybrid turbo package which included a enlarged & port matched Chinafold manifold and Badger 5 V2 80mm TIP.
My train of thought was if I was going to the trouble of taking the ******* turbo and manifold off I may as well upgrade the lot whilst I'm at and hopefully be done with this side of things for the foreseeable future.
No I didn't these but once I have something in my mind that isn't quite right and can be improved on it'll just bug me like hell until I deal with it.
As far as K04 sets up go these really are the best on offer.
I know people will ask why not just go with a big turbo set up but when you factor in the additional costs and fabrication involved it just wasn't worth it to me as essentially already set up to run this properly.
The way I see it as I'll recoup a good chunk of the outlay anyway once I sell the Mamba hybrid, Relentless manifold, my brand new black B5 V3 TIP and the latest V2.2 blue 80mm TIP. (I'll need to buy another V.2.2 in black)
For those not familiar with the AET380 set up then there's plenty of documentation of them making very strong figures.
Bill at B5 has regularly posted dyno graphs on his Facebook over the past few years with many making around the 400bhp with the correct supporting mods - more than enough on a FWD car of this type imo.
This old thread is rather interesting and gives the low down on them from when he starting selling them.
We have been busy working with AET Turbos on hybrid k04 solutions, and yesterday proved to be a pleasing day results wise. Our Lupo test car, (MrsB car) is a bog std AUM engined car, just with IE rods in it. It has as supporting mods, B5 TIPs,JR Filter, B5 gen2 exhaust manifold, 2.5" pipework...
www.audi-sport.net
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