:agree: I'm glad I'm not the only one.Quote:
Originally Posted by Tony Walker
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:agree: I'm glad I'm not the only one.Quote:
Originally Posted by Tony Walker
I had one if those devils on my last 5. Are they hard to come by now?Quote:
Originally Posted by Mart
They come up for sale every now & then, but command strong money.
I'm sure if Sid could make exact copies, for less £, he'd probably be onto yet another winner :D
id certainly be up for a devil copy
The frenchies make copys but still mega money ,I would love a devil strut braceQuote:
Originally Posted by Mart
More info plz guys...I.ve seen some pics and see it's just 2 brackets and 1 tube...
1) Is the tube ment to be bent ?
2) would you want same adjustment on it so weight you can added to top (pushing out)
3) what sort of money are you willing to pay..
Cheers all
:)
2 brackets one tube and a couple of pins.i remember i used to have problems closing my bonnet with it. :(Quote:
Originally Posted by Sid Dawn
Quote:
Originally Posted by Tutuur
got a rocker for the f4r comoing over next few days...will have a look at it at let you know...looks simple realy..lol
1) Yes.Quote:
Originally Posted by Sid Dawn
2) Imho, no. 100% exact copy ftw :)
3) For ref', 2nd hand Devil braces go for £150-£200, and the Reichhard units (which aren't exact copies - They only have the one strut-bar fixing hole at each turret support, whereas the Devil has two) used to be ~£100.
What the invisible one said is correct.Quote:
Originally Posted by Noone
:laugh:
Quote:
Originally Posted by Mart
ok cool...so realy I could do with someone lending a Devil unit so I can draw it up..if you want a true copie I have to have one in my hands for a few days...:)
Solid/adjustable followers for F4R might be handy.Quote:
Originally Posted by Sid Dawn
Top job :agree:Quote:
Originally Posted by Sid Dawn
Like these....;)
Those are the catcams lashes but need custom profiles...
Quote:
Originally Posted by Tutuur
so when I get the standard rocker how do you want it to look...same but solid with 2 bearings??
ratio change??
Same i guess but unbreakable and possibly lighter :)
2 bearings would be a plus too!
We need someone like you on the honda s2000 forum,honda after market parts can be sooo expensive:cry:
Quote:
Originally Posted by steveT2
like??
info plz:):)
Hi all...
Lets talk Sid Dawn F4r rockers..this came today
https://www.rtoc.org/boards/picture.p...pictureid=9014
I must say it's pritty badly made..as you see here
https://www.rtoc.org/boards/picture.p...pictureid=9016
when pushed down at valve end its not down on both sides..not knowing about F4r engines this carn't be right hay:confused::confused:
as for the clip to left of rocker...whats that for..he he:D
Just looking at drawing them up over next few days...there are 16 yes..:scared:
Cheers
clip... clips on to the top of the hydraulic lifter.
the problem with the end on the right is when you have high lift cams the angle and loading gets really bad, that accompinied with high rpm gives problems i think.
a bearing or some kind of rounder end would be great, i think a second bearing would add too much weight won't it?
Quote:
Originally Posted by Tutuur
I don't understand how they could make them so bad...with 2 "legs" that arn't same..that to me is just :brickwall::brickwall:
Any hoo...will look at few ends bearing and rounded..
Mass produced sh1te..... I think these are the limiting factors when using constant high revs in the f4r engines.....they fall apart.
Also, check this..... A friend of a friend has just bought a nice 172. Had it a couple of weeks when someone said that it was a 'bit tappey' from the engine.......
I took one look inside th oil filler cap and saw this.
The base circle of the cam lobe has been munched away, the dip in the cam is at least .5 mm deep.
Ouch.
A few pics of tonights doodles. F4r Rocker
https://www.rtoc.org/boards/picture.p...pictureid=9020
https://www.rtoc.org/boards/picture.p...pictureid=9021
https://www.rtoc.org/boards/picture.p...pictureid=9022
:)
Looks real tidy!
Sid, would you mind if I mentioned this on cliosport? Apart from a few bling boys there are one or two very techy lads who may be interested in this sort of thing and may have some input into a good reliable design.
I wish I could doodle like that!
I can't draw stick men, on a pc or with pen and paper lol.
Well done.
Quote:
Originally Posted by Matt@CodeRedMotorsports
Ofcourse, the more input I can get the better..or any requests to be made to them..
few pics of the adjustable top mounts I'm working on..
https://www.rtoc.org/boards/picture.p...pictureid=9032
https://www.rtoc.org/boards/picture.p...pictureid=9031
https://www.rtoc.org/boards/picture.p...pictureid=9029
All 3D printed so far with a few changes to do...The reason I've gone for this kind of motion instead of slotted plates is 'cos I've been informed that the slotted plates can move (slide) after setting and driving hard....with my set up the screws hold it in place at the ends of the slots so it CAN NOT turn = move...:D
Any input (good or bad) is welcome..
Cheers all
adjustable top mounts put me down for a set, these are for a phase 2 good work well done.:smokin:
Looks very bling Sid, good job! :niceone:Quote:
Originally Posted by Sid Dawn
Am I right in thinking though that you will only be able to set this design of top mount the distance from one tapped hole to another meaning they're not finely adjustable?
I may be wrong Sid but as far as I know they are meant to be slightly out of true.... it's done so as the rocker works it actually rotates the valve/spring when in use.... as the revs increase the rotation of the valve does too...Quote:
Originally Posted by Sid Dawn
sounds weird but after watching a high rpm High Def film about it you'll be amazed how much the valve, spring rotates in use... also the valve flexes a huge amount in use... I'll try and find the clip on youtube...
I had a clio that had a very slight bent valve and as it turned it would stick on the guide and make a right racket whacking the piston then would clear for awhile then come back lol sounded great at first then went then came back then went. stupid cars.
Quote:
Originally Posted by Big Steve - Raider
NO...:) the holes are off set so it if fully very fine adjustable...so when you turn it there will be 2 bolts in some slots but only 1 in others...turn it some more and there is 1 bolt in some and 2 in others...if you get what I mean..:)
http://www.youtube.com/watch?v=QuWiZ5nVKzA
http://www.youtube.com/watch?v=_REQ1PUM0rY
http://www.youtube.com/watch?v=vcyT18qk8ls
enjoy, Sparkie know you can see what you used to do , LOTS
Quote:
Originally Posted by paul b
wow fantastic stuff....still with the 2 legs not being same length???..when 1 the vids has a bearing at valve end like I plan to do??..do you realy want to be hiting the top of the valve at 8k at an angle...that to me is like hiting a nail in wood with an axe...the nail is guna bend..
but if you could "turn" the nail as you hit it, it will not bend ....
thats the theory , anyway..... lol
Have you offered one up?Quote:
Originally Posted by Sid Dawn
Not a great deal of open space on top of the turret so limits options for locking bolts.
Are you designing it so the metal around the top hole on the turret has to be cutout and opened up??
I know about the lack of space and this is also why I've gone for this design...no cutting will be needed.. made a perspex cut out first to offer up..now I've got a 3D printed full working 1 I will offer that up asap (wkend)...it not take the waight of the car well but will show up any problems.Quote:
Originally Posted by Andy M
Great :agree: :cool:Quote:
Originally Posted by Sid Dawn
Great stuff mate :cool: is it being offered up to a ph2 car??Quote:
Originally Posted by Sid Dawn
Keep the progress reports coming :) Very interested in this one.
Thought about doing the same sort of top mount for clio ?
Also short shift lever?
Amazing videos. Both the valves and the springs rotate. From where does that rotation originate? It is the microscopic imperfection of how the rocker comes down onto the top of the valve?
I think springs twist slightly as there compressed.
This is where I'm at so far with timing chain cover....guna be in 2 halfs with an angle to join them together..
https://www.rtoc.org/boards/picture.p...pictureid=9037
https://www.rtoc.org/boards/picture.p...pictureid=9038
https://www.rtoc.org/boards/picture.p...pictureid=9039
What, naturally? Hmm, I guess that would make sense given their innate design. It must be that since the spring is attached to the assembly at the top (and so is the valve), the valve spins as a result.Quote:
Originally Posted by Tony Walker
Nope, there is a small amount of offset. So when the valve is opened it should drag it round ever so slightly.
An exaggerated pic. This it what it looks like looking down on the rocker and valve stem.
The same principle applies to the camshaft and follower, it's supposed to even out the wear patterns.