Recent content by Fishfire

Don't touch the KTR one if you're planning on road use. I had one and at the MOT centre the emissions were near identical to a full decat (and yes, it was red hot!) KTECs are designed as a box ticking exercise for the clio race series and literally do nothing to emissions. I haven't had a Cobra...

I put a new CPS on it when I turbo converted it 3 years or so ago. But, it's still on the original connector. Just find it odd that it was running until I changed to the genuine renault cos, then nada 🤷 I'll do as you suggest and replace the connector too and take it from there. Appreciate...

Yes mate. The top ends been off for new catcam springs, so it's all new gaskets, belts, dephaser etc etc. Running after bolting it back together, just hunting at idle when cold and stuttering after a gentle throttle blip

Clio 172 phase 2 (turbo) My car was starting and running but was hunting when cold and a gentle throttle blip would make the revs drop, hunt then go back to normal, but improved once up to temperature. So I changed: Plugs HT Leads Coil pack Inlet air temp sensor Non of these improved the...

Just looking now. Genuine TBs seem to be around the £400 mark

Sounds like a plan. I don't have anything that can access the ECU unfortunately, but from what you've experienced, it does point to the TB. I may have a spare kicking around. If not, I'll find a good used one. Thanks for bouncing ideas around....neon scratching my head over it most of this...

My car did similar a while back. Also had no fault codes so fired the parts cannon at it, which sorted it out. Ideally would rather not do that again lol

The vid was after it'd been run up to temperature with the fan kicking in. It's been in bits since September, and this was the first time it'd been fired up since bolting it all back together.

Appreciate the input

My initial thoughts were: - throttle body playing up - crank position sensor - air leak somewhere Had very similar issues a while ago and fired the parts cannon at it, changing the TB and crank position sensor. Would any of these throw up a fault code? Just had a look and the check engine...

Would it not do this at idle then too? Starts, runs and idles fine...it just hunts after a throttle blip before going back to normal. The valve springs aren't extreme tbh, only moderately stiffer and the same height. I'm just trying to prevent valve float at higher rpm.

Hi all. So I've had the top end off the engine to fit catcam valve springs and now the revs drop, surge a bit then go back to normal after giving the throttle a blip. I've had this before a long while ago, and changed the crank position sensor and throttle body, which cured it, but the...

Yeah, once the gubbins are all off the engine, you realise it's actually really small. I'll be following the build with Meg pistons with great interest!

Similar sketch with my 172 Turbo. After managing to clip all 8 of the inlet valves, I used the opportunity to change out the std valve springs for uprated CatCam springs. Defo recommend an engine mount. They're not expensive and I've found it far easier to lift the engine out whole and strip it...

Cheers mate, appreciate the help. I turbo converted my 172 3 years ago after a belt tensioner gave up and ended up bending valves. I fitted new standard valves and springs at that point. Never had an issue until I managed to clip the valves recently. Totally my own fault (too high revs from...