The importance of measuring valve spring rates correctly

[@samrodian919]

That was an intense course in the world of valve springs Ricky. I and I bet many more viewers had no idea how technical it gets, especially in the heady world of high performance engines. Thank you for sharing this with us.

[@REPerformanceUK]

Very welcome! Yeah that is just the start to!!

[@kmc7355]

Good info, thanks. 16:54 > Judd

[@REPerformanceUK]

Thanks for that!

[@neilking6258]

Really pleased to see how well you’re doing since leaving us at VWG Ricky. Videos give great insight into the work you’re doing on the super cars but being old school I’d really like some content on the Dodge Charger in the background on the Matt Armstrong video!

[@REPerformanceUK]

Thanks mate, it has been a while!! Drop me a PM will be good to catch up!!

[@chicanesimon]

Agreed I like the guys knowledge of engines and being humble with it, but you can keep the engines and cars they reside in (not a lover of modern supercars) but then I'm old school and also like the Yank V8 stuff inc the Mopar

[@ther1kid]

Great video! Would love to see a cylinder and port pressure tech video.

[@ivorfin69]

Just started watching your content and it’s unreal! Really good info. Keep it coming! Great to see you’re sharing the info and not keeping it to yourself.

[@KiG1208]

Loving the info and detailed information... .Keep more coming... Wanna see some tuning information videosnon how you started, how you tune etc etc

[@TheRobphobos]

Great vids, love the tech stuff ! I've just recently rebuilt my engine (pistons/rods/cams/valves/springs etc), and doing the valve to piston with VVT took some time! Hopefully I got it right but that would also be cool to see how you guys do it too :) And any of the tuning work too, whether N/A or FI.

[@angrydwarf6563]

Loving these vids. Fantastic to watch and brilliantly informative. Even I can understand the theory. Thanks guys.

[@REPerformanceUK]

Our pleasure!

[@snavenitram]

simple terms and understanding. Another great informative video. thanks

[@REPerformanceUK]

Thank you!

[@g7celica]

Nice channel and very informative with lots of high tech stuf. I would very much like to see a video about gearboxes. Thanks so much. Cheers! Mike from The Netherlands

[@REPerformanceUK]

Thank you!

[@ianhoyle8459]

Enjoying your videos, appreciate your main work concentrates on four wheel vehicles but some motorcycle content some time would also be great if possible. Awesome work and very interesting details gents, thanks and best wishes.

[@REPerformanceUK]

Thanks Ian! I was thinking of doing something on my race bike. BMW S1000RR.

[@AmrinderSingh-zx9hr]

Please tell me the Colour upon the valve spring should be upward side or downward side while fitting in Motorcycle Head.

[@bulmang9256]

Is there a mark or way to separate intake or exhaust valve springs ,

[@7071t6]

Do a complete engine build and what type or grade are the alloys used in various parts,especially moving parts which are coated with anti friction coating and hi temp coatings and also how much real balancing is done when building a V8 or V10 lambo engine and which parts are balanced and where the material is removed to make sure each moving part is perfectly as can get in weight and moving balanced etc.:) Love a upload about that?

[@bulmang9256]

The stock springs have Marks on them and, I would like to know which one is for intake or exhaust.also you said the valve springs are identical that means the marks on the spring don't matter in I swapped it by mistake?

[@stevemarr9295]

Excellent content, thanks Ricky

[@REPerformanceUK]

Glad you enjoyed it

[@davebowman1982]

These videos are awesome 👌🏻

[@7071t6]

Also how much extra work is done compared to factory engines and what aftermarket improved parts can you buy, so that the engine and running gear will last a lot longer, even if your racing the cvar on weekends etc. :)

[@garethbream1016]

great video!

[@sahalin12345]

Combustion pressure sensor? How does it work? Is that some modified spark plug with transducer?

[@REPerformanceUK]

Exactly that sir!

[@jonathansmith9869]

Great videos, arrived here via Jayemm and Guy Martin videos. I’m interested in what sort of modelling and simulation you do as part of your development work. Don’t expect its anything like what the big players might be doing, but is there much beyond simple first principals / spreadsheet type analysis (as per spring preload in this vid)? I’m involved in mechanical analysis in a different field using packages like simulink and from the few videos I’ve watched so far you could get a lot of value from it (m&s). Possible video topic anyway 👍🏻

[@neilevans3260]

Brilliant videos - keep them coming :-)

[@REPerformanceUK]

Thanks, will do!

[@firstnamesecondname5341]

17:40 🤦🏻‍♂️rookie error, check list before recording (phones to silent or off) 😆

[@barrybritcher]

ever had a spring fly off out the machine/measuring device?

[@REPerformanceUK]

No, that machine is super stable so the spring can’t twist.

[@TC-V8]

Any reason you use pounds?

[@REPerformanceUK]

My measuring gauge is in pounds and the companies we work with making our springs work in pounds….so just easier really.

[@markus9333]

Why dont you show and calculate the needed spring strenght for this setup so it wont loose valve control but is not too hard to increase wear of the parts.

[@REPerformanceUK]

We will in future videos but have to start somewhere. If I said everything I wanted it would be a 4 hr video lol

[@khunchai43]

Cheap, fast, and reliability; reliability is the hardest one.

[@REPerformanceUK]

Exactly!

[@beachboardfan9544]

Why not just match springs. Test them and use only the springs that have consistent forces at the given compression. Why bother with shimming to match spring weights?

[@REPerformanceUK]

We don’t shim to match spring weights, we do that to increase pressure across the board. We do use matched springs.

[@stevenlee4437]

I’d love a video on meth injection and injectors 👌🏻

[@walasek18]

Also I got one more question. In one of your videos you mentioned: kzbin.info/www/bejne/hoK0kmuVl7N8hK8 Were the springs that lost 30% of their pressure taken out of twin turbo or out of stock Lambo engine?

[@3dkiwi920]

"Thirty Free"

[@ChristopherWilliams-fq5ig]

I would like a job please.

[@ChristopherWilliams-fq5ig]

And the piston and rod