Guess you Can Achieve more lift with lashcaps with radius tips.
@PenguinMotors
6 ай бұрын
Adding lash caps will reduce valve lift because your effectively making the valve longer, changing valve length alters the cam/follower contact point and therefore rocker ratio and thus lift
@roccoPuopolo-z2i
6 ай бұрын
Excellent content Graham, I was wondering if you ever use single cotter valves ? I ran my pintos on triple groove valves and always found I wore the grooves out mostly due to over revving I think ? Keep the videos coming 👍
@PenguinMotors
6 ай бұрын
I do sometimes, valve material and quality do all play a part though
@markus9333
6 ай бұрын
Aftermarket ones are not harden from the stem tip and thats why the grooves wore?
@PenguinMotors
6 ай бұрын
depends on material, you cant harden all materials. Triple grove allow the valve to rotate so valve seats stay in better condition. When building an engine intended to spend a lot of time at very high rpm i prefer to use single cotter, they are stronger because the way the cotter grips the stem itself
@neill4133
6 ай бұрын
Great videos Graham, on a standard pinto (With an FR30 cam) would you recommend 34 or 36mm chokes in a pair of 45s? Just for a road going Escort
@PenguinMotors
6 ай бұрын
Going by the cam I would most likely fit 34's they will give best throttle response and low down torque, of course a dyno test might suggest otherwise for best power
@neill4133
6 ай бұрын
Thanks Graham
@johngault3973
6 ай бұрын
Just out of curiosity would you have a leftover oil pan for a crossflow ford that you would sell?
@PenguinMotors
6 ай бұрын
sorry no, infact i could do with a couple myself
@bobbyblueace
6 ай бұрын
All great stuff. Did you coat both sides of the gasket with Wellseal?
@PenguinMotors
6 ай бұрын
yes
@paulriggers1558
6 ай бұрын
learning all the time
@guidorollard2944
6 ай бұрын
Graham is a well experienced engine builder as i see how he looks into detail. And ehhm... by the way, always loved the OHC pinto
@MrMightyytau
6 ай бұрын
Interesting following this series. I wonder if the principle of different Valve seat heights as describe in David Vizard's video, would work.Yes he tacks about 4 valve heads but dropping the exhaust valve into the head would change the gas flow kzitem.info/news/bejne/jqyPm45pp3V7f4Y
@jeronimodacal5154
6 ай бұрын
Hello, I am from Argentina, I have a Lima 2.3 engine, do you recommend placing a tube in each duct to improve the intake angle of the cylinder head? Have you ever adapted a Chevrolet Corsa 1.6 injection ecu to a Lima engine? (in Argentina this ecu is usually adapted to any car with a carburetor)
@PenguinMotors
6 ай бұрын
Sorry can’t help the Lima is a different engine that I have never worked on
@guidorollard2944
6 ай бұрын
contact Esslinger engineering in California USA, they might still do the Lima. I got one of them many years ago with a special SVO aluminium head on.
@mrb3483
6 ай бұрын
Great content Graham 👍🏾
@MrThewillows
6 ай бұрын
Is the rule anything more than 1/4 of valve diameter in terms of lift no more added benefit?
@PenguinMotors
6 ай бұрын
that would depend on the engine, but simply looking at from a flow/lift perspective is too simplistic. Because of mechanical contraints sometimes you have to open the valve further than peak flow/lift in order to get enough opening time on the valve, or put it another way increase effective duration
@lynxified
6 ай бұрын
At what amount of lift at TDC should one start worrying about the valves hitting the piston/needing a cutout?
@PenguinMotors
6 ай бұрын
Typically l over 4mm but head thickness deck height and actual cam timing all play a part
@lynxified
6 ай бұрын
@@PenguinMotors I've got a cam that claims 3.85mm lift at TDC on the inlet. planning to use it on a block with 0.34mm deck height, you recon I should be good if I mind the timing? how much clearance would you recommend as a minimum?
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