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Hi Mark, Engine Dynamics is doing remote mapping of the stock ECU, I will post the HP results once done. But yes, the stock ECU will manage the piper cams with a proper tune.

Advice needed: Is it possible that the stock ECU cannot handle the combination of high compression R3 pistons and the piper cams? Here is the power curve after an attempt to map the engine...not great

Hello all, This project is taking longer than hoped. I am done with the mechanical works and we did the first dyno run. Without mapping we have 210hp and a lot of flat spots (note the car is not on a stock mapp as the previous owner already played with the ecu). Unfortunately, I don't have...

Yap, I was aware that piper's will not utilise the full potential of the bottom end. But I decided not go out fully with the cams, hopping to retain a usable power band through the rpms (the car will be driven on road too). And not to risk needing ITBs or standalone ecu, or additional...

Will keep you posted. I did not pay too much attention to their advertised power gain, I rarely do (the fact that a manufacturer says that their product will bring xy HP is quite vague unless they share the baseline, e.g if the test engine was producing 185hp before the mod, and most F4R832...

The cams have arrived. Went with paper cams, as their specs seem to be almoust identical with catcams 403, but were quite cheaper (they had a black Friday sale) and apparently don't require special timing tools. The engine head will be equipped with catcams valve springs, wossner forged valves...

Thanks! That's true. I will add Supertech valves and catcams valve springs. Just need to decide between catcams 403 for a safe bet, or byte the bullet and go with 404s. BTW, light weight pulley and flywheel will be added, and the rotating assembly will be ballance. Also doing the transmission...

I don't know. Before getting it on rollers I measured the compression ratio. It was way to low for a reconditioned engine (around 1:9 on all cylinders). So now I am taking it out again and while I am at it, I figured to do a full engine build.

To add, this is the second time I am doing this engine. The first time I opted for the cheap option, got the the engine head work done, replaced piston rings, all bearings etc. Installed a baffled sump, oil cooler, v6 airbox, got a remap etc... but I was not super happy with the result. So, now...

Hi Liam, Thanks for your input, you are pretty much confirming my fears here. CatCams is a bit confusing as they are making dedicated VVT delete cams 5503505, and VVT cams 5504405 (but they still recomend VVT delete). Idle will be an issue, I did supporting cooling mods so I hope that 1200rpm...

Hi, I am after a clean NA build.

Hello all, I am a new member from Czehia. Currently I am building my Clio RS engine, goal is 230hp. The car will be used as a clubsport track day and weekend car. So far I got: PMS manifold and race exaust, V6 intake, head is ported. On the way are: wossner high compression pistons and forged...