OK. Conclusions based on whats happened....
Costs:
The K04 hybrid is the most cost effective big power solution to be completely honest. It is NOT a bolt on and go mod as we have seen. Supporting mods are essential to getting it to work properly.
The turbo is very good value in itself, however once you bolt on all the other essentials - the costs begin to skyrocket.
Is very slightly more cost effective than going for a big turbo setup - but to be fair not a great deal.
However power is comparible with the GT28RS - so swings and roundabouts I guess.
CR Turbos Hybrid V1 vs V2:
Following surging issues with some of the version 1 turbos - CR have produced what has been dubbed the version 2 hybrid.
The difference with these is a slightly smaller comp wheel (2280 as opposed to the V1's 2283), and a clipped turbine wheel to reduce spool time.
These V2 turbos seem to be ones to be avoided. They have proven to be less efficient when compared to the V1 turbos - personally, I would avoid these based on Robbie's experience.
Supporting Mods:
Supporting mods are pretty obvious for the most part.
The hybrid requires: FMIC, 3" downpipe and sports cat/decat, 440c or larger injectors, Stage 3 mapping, full exhaust system, Forge TIP, H Beam forged Con Rods.
Other things that have proven to be worth buying are the Badger5 3" TIP & Jetex filter, High flow exhaust manifold, Forge UNOS manual boost controller, Water Methanol Injection.
Exhaust Manifold Options:
Several option on the market at the moment, however none of which are ideal. Its a 'make your own mind up' thing really..
034 Motorsport manifold - $399 - 1st versions prone to cracking from thermal expansion. Awaiting on V2.
TSR K04 Manifold - ~£800 - Very good and proves thus far to be reliable - however large runner add spool time, and cost is extreme.
XS Power K04 Manifold - £285 or less - Equal length and flows very well. Very good cost. Downsides being that the pipework is thin, and it isn't the easiest to fit.
JBS K04 Manifold - £450 - Not available on the market yet.
The key with keeping these manifold in A1 condition seems to be NOT running too much boost - also WMI really does help. Excessive EGTs will kill them over a period of time. Sometimes, boost is not your friend.
Mapping:
An absolute must. Hybrids will not work well on Stage 2 maps, as the delivery will be very very spikey.
Stage 3 maps, preferably live maps, are the way forward. Bill @ Badger5 has done mine as you all already know.
Rods:
To achieve the figures these hybrids are capable of - YOU NEED THEM. Don't fit them at your own peril....
These little blowers are capable of producing BIG torque spikes, and that is what will kill the OEM rods.
It has also been shown that it is possible to take them past the 300 lb/ft mark, which is also danger zone for OEM rods.
WMI:
Not a requirement but strongly recommended. Keeps exhaust gas temperatures down whilst improving octane level of the fuel.
Allows for more timing to be dialled into the engine, which improves performance.
Kits vary in price, but the current one to go for seems to be the AEM kit - around the £300 mark.
You can also d this on a budget (like me) and keep you eyes peeled on ebay. You can very much make your own kit if needs be. I have used the screenwash tank, and piped from there simply - working well so far.
I am using a Devil's Own D05 nozzle for injection - this seems to be ample.
Power (the big one):
The hybrid turbos seem to be able to comfortably pass the 300 BHP mark.
I have seen a variety of power outputs from these turbos, however without a high flow manifold they seem to be up to around 315 bhp at the most.
I have seen ~300 bhp on an OEM manifold, 332 bhp on an 034 manifold and 344 bhp on the XS power manifold.
As it stands not, we are seeing 338 bhp and 307 lbfts on the dyno running 22 psi and WMI. The highest figure from a hybrid so far (as far as I know), however it does go to show what these little things will do when you give them the ability to breath.
"It's all about the flow".
Coming to the end of a project is always a sad time for me - as I won't know what to spend my time and money on...
However I hope that this little journey has been entertaining for you, and informative as well. There have certainly been some ups and downs over the last few months.
Hopefully it will be nice to give my wallet a rest.
A big thanks to Bill again - a legend in his own right. He has been relentless in getting the best power that can be had out of this car, and for that I owe him big time!
He did take the car out for a spin yesterday, and came back having blown a coil after about 4 mins or so... Came back to the unit for replacements... Shows how he drives....
