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Extremely similar setups have been run on various S2000 spec engine packages in BTCC, WTCC and WRC for the past two years. As stated earlier in the thread the development engine is going in the car on week commencing 16th March. Flow bench testing has been performed vs Jenvey and ATP ITB setups...

QEP are the UK importers for CATcams. Matt is the Technical Sales and support chap - very good he is too! Cheers M

Think about it running lean is too little fuel i.e. and incorrect air fuel mix....... but how can an engine have too much air? All the work we do on naturaly aspirated tuning is about increasing the inducted air mass. You can have poor air mass metering i.e. poor throttle control etc. but a...

Yep CAT cams always have the PN hand engraved on both cams. Cheers M

Yep! 40 hours + so far on one of the BTCC engines and still not signed off! Cheers M

Yep we have used every single bit of available space to get the longest trumpet length and biggest plenum volume possible :D Cheers M

Yep that's correct. Prototype is in build now, fresh development/test engine is going into the car week commencing 16th March, cal validated and complete circa 20th March, Order book open and first batch in production circa 24th March for delivery ASAP after that date...

You can never have 'too much air' the total inducted air mass is limited by the engine itself - you can run a standard 197 with an open throttle body and no bonnet and it'll still drive as per standard. I think Kev has Lambda issues or an air leak. Cheers M

It depends entirely on the cams you are running as to if you require larger injectors or not. As per 6 posts up ;-) Prototype is in build now, fresh development/test engine is going into the car week commencing 16th March, cal validated and complete circa 20th March, Order book open and first...

You need to run them to ensure correct wheel location in relation to the hub and they do have a load bearing role - end of. Cheers M

Panel filter is fine, Kevo66's setup is very nice though. We've just done a new one for the BPM X85 SE prototype using an ITG AB80 airbox, modified inlet manifold to relocate the throttle body position and a induction point (i.e. nostril) mounted on the nose. Don't think you'll get much...

As said earlier in the thread, pics, info and full spec released to the public domain once the prototype is finished and tested. Cheers M

-10bhp ;-)

It's further up the thread a couple of times Riley! Prototype is in build now, fresh development/test engine is going into the car week commencing 16th March, cal validated and complete circa 20th March, Order book open and first batch in production circa 24th March for delivery ASAP after...

If your Clio is remotely recent then idle speed is electronicaly controlled and managed via the ECU. There is no adjustment. Cheers M

Old socket + lump hammer = Solution. Then just replace them with standard wheel nuts as any wheel thief can get past lockers in a matter of seconds - hence all locking nuts serve to do is piss off owners and garages ;-) Cheers M

You should just be okay mate on your standards. Cheers M

BenR has answered your question mate! Traditional back street with an old flow bench work gaining bulk flow only does not reflect as gains on an F4R, especialy with the standard inlet manifold. If you're going to retain the standard manifold then its just not worth doing. Cheers M

Indeed Megane 225 spec injectors are cheap as chips even from Renault, they have a very stable spray pattern even at low duty cycles and provide sufficent fuel for 300bhp+ They are also a straight swap for the standard injectors. Cheers M

That sounds awfully like a possible big end failure to me. Quite at idle and at very low loads but blip it and it rattles? They did put some oil in it before firing it up didn't they? Cheers M

36K or 5 years for Aux belt. If its not been done then get it done ASAP. It's a 20 min job on a 172 Cup and the belt isn't a lot of money - buy a Renault genuine one though as the Unipart ones don't quite fit as they should. Cheers M

It's not the weight saving thats the best bit its the ability to easily produce silencer boxes in complex shapes and the lower surface temperatures which will make it popular with OEM's. Cheers M

OEM only at the moment unfortunately. Clever idea IMHO and simple implimentation. Wouldn't be surprised to see this on a lot of production cars in a few years time. Cheers M

We used fabricated alloy plenums on the BTCC development stuff - only switching to the CF plenums on the actual car for weigh saving and bling. It's safe to say with a fairly open air filter mounted very close to the throttle butterfly with a comparatively (to cast items) thin wall aluminium...

Packaging constraints limits the trumpet length that we can run - but until the manifold kit has completed testing on the development engine I can't say what torque gains will be present where as it will just guessing. The flow and velocity gains are pretty major so it will be interesting to see...

Yes, yes it is :D Cheers M

Seriously chaps all will be made clear ASAP. I see no point in providing you with guesses or expectations as these only ever cause confusion. As said this will be the best 'bang per buck' modification for the 1*2 available anywhere and solid, proven figures will be released as soon as...

Price will be announced as soon as the prototype testing is complete. At this point we can sign off the component list and BOM. Until then I'm not going to publicaly state a price as this may change - okay only be a few percent if at all but any data I put in the public domain regarding this kit...

Yep Megane 225 essentialy. Injectors are cheap too! No problem running them at low duty cycles etc. Cheers M

Seconded - if you must have stainless then I can't think of a better option. There is nothing wrong with mild for a manifold though and chances are it will be more durable than a manifold produced from stainless. Cheers M