Mark@Abbey M/S

boost isnt the issue it is cylinder presure that causes damage. peak cylinder pressure is at max torque , torque versus rpm is the issue that causes rod damage

The issue is the rods , people have lost motors at a lot less than 300bhp so as a tuner you have to look/tune on the safe side , The rods are powder forged and this adds a element of risk but the rods are the same as the FA-20 turbo motor in the late Imprezza so even Subaru are working these rods a little.

I thought they had a dynapck like we do. These dyno read at the hubs and flywheel power ss estimated EDITTED they have a dynomite.

Quoting power gains on an auto is a little hit or miss, @Leeky what power did your Auto car record at the wheels please?

Why am I shady? so with a little work I can work out who you are? The kit was updated after the issues that I said about above , with a little time on Google your see the HKS kit part number has changed. We have sold a fair few of the later kits ( early kits that failed while in warranty where replaced with the Up-dated kit) Just remembered I had to chase you for my loaner Ecutek kit took you over a month of chasing for it to be returned? Did you sell the car?

Come forward with a full name please then, you say we have spoke before but I speak to numerous people about a lot of things Did we supply a HKS kit to you or did you buy a car we had fitted a kit to? The HKS kit was updated some time ago, the failed kits which broke within warranty period was updated with the new specification Super Charger unit. From what we worked out was a gear drive unit failed.

still waiting for a reply @ThatGuyThere

I presume your Clive? Is that correct?

I been slow as I have been super busy @ Abbey HQ , Okay , can we all be transparent then , can we have your names and not your forum names. I thin this is the way forward. Thanks

Cosworth full kit (headers/exhaust) and SC kit with stock pulley and stock Cosworth tune versus Harrop running stock pulley but full stock exhaust system inc both CATS. The one with the dip is the Cosworth the green single is the Harrop, BHP figures is at the HUBS

Like for like on the same dyno?

I have no doubt Cosworth have a good name , Myself coming from a racing background numerous years in GT and Prototype Racing numerous having worked with/used numerous Cosworth power units , did Cosworth run a GT86 Engine for 10000Hrs on a dyno? Thats is a huge investment and that would need to be passed on to the end customer. You could say that the long intake pipe on the Cosworth is a little ugly and un-needed when the intake can go directly into the from of the Charger housing, like wise the Harrop Charge cooler pump is hidden away and the header tank built in the back of the Manifold which is a far tidier build. What i find strange is Cosworth have stopped making the kit , wonder why this was, not profit making I presume , maybe not the sales or something they decided wasn't worth the effort. Harrop have delete with GM and Toyota over the development and supply of SC kits for a long time as well, they maybe not as big name in the UK but they have been around since the 1950.s so they have a rich deep history in performance tuning. Thanks If everyone like the same thing it would be a boring world

Yes they have smaller losses but the kit doesn't fit as nice/look a snice in our eyes that why we use the Harrop kit, regards R&D can you enlighten me please what Cosworth have done over and above what Harrop had done please? I presume you referring to the engine work they did in regards engine loading. , exactly them same as Harrop did when they developed the kit , they have had a GT86 Development car for a long time.

There was an issue with the earlier Kits that have been sorted , I being a HKS dealer and a well known tuner wouldn't be selling something that isn't good

Syvecs have a standard alone ECU nearly ready for sale this will allow the full potential to be found I feel.