They are all too long arent they?
They are all too long arent they?
Yep they are way too long, might fit a 1600 head since they need valves about 2-2.5mm longer than 2.0
A bigger thing to consider is the collet grooves, you would have to be extremely lucky to find a valve that will fit the pinto without a lot of modifications to valve, spring caps etc.
Just go for the ivey single keeper short valves and be done with it.
Jason
Had a play around with the motor today.
My block looks to have been decked. Piston comes out the top about .5mm. Also my head is about 93.5mm thick. What is the stock head thickness? Any ideas on my CR with standard chambers?
Camtec (without H) is an OEM Cam Suplier from UK. ths means your followers and also maybe the cam are a standard profile, replacing the original ford items.
anyway: i made good expiriences with camtec followers.
Hello Group,
I do not understand what the boggle of the longer valve is???
The head on the valve is bigger and the valve sits farther into the combustion chamber efectivly making it as short as the stock valve...
What is the boggle about this????
I agree with the single grove keeper if you are running stainless valves!!!!
Here is a photo of a retired 2.0 Turbo head.
This head has the 1.75 intake and 1.47 exhaust and are much further into the chamber than the stock Ford items.
It runs smoothly with the Manx rollers...
From Pintony
What valves are they out of Pintony?
A few questions:
What material are they?
What dimensions have they got, length, stem diameter, have they single or tripple grooves, did you use the std spring cap and did the spring heigths work out ok?
Are you getting full valve lift?
I agree when you are using larger diameter valves you can effectively use slightly longer valve stems but only about .5mm at the very most.
Regards
Jason
Hello RWD fords rule,Originally Posted by RWD fords rule
This head was built 20+ years ago.
I am sure I do not remember what I used and it really does not matter as they are "I'm sure" no longer available here in the states.
The photo shows rust on the valves so I would say that they are steel and I know they are the 3 grove keeper.
If you look closely at the photo of the head you will notice the O-ring brass pianio wire around each cylinder
This is a Racer Walsh head.
I abandoned the O ring head about 15 years ago for the O-ring block. When the block is O-ringed it is much more stable than putting it in the head.
Here is a link to some valves choices.
The RWA 1456 is a stainless 3 grove that is +.050 longer.
for the intake...
And a RWA 1493 is for the exhaust.
Link
http://racerwalsh.zoovy.com/category...esspringsandr/
From Pintony
Hi Pintony
Good to see another knoledgeable person on here
A big problem with the cams and valves available in the UK are that almost all of the uprated cams available have a small base circle and are designed to suit a std length valve, the problem with this is that there are no oversize valves available with the correct length to give the full true valve lift and timing the same cam would give when installed in a std head.
Newman cams on the other hand are designed to suit longer valves, about + 0.050" to 0.060" longer than stock.
I know some of the american profiles are designed to suit std length valves and some are designed to suit longer valves.
I like to build my heads to suit the camshaft that will be used with it, blue the rockers to make sure the cam isn't coming off the end of the pad and I am getting the full valve lift or very close to it.
Some people set up their UK cams so that the cam wipes the middle of the rockers when the cam was designed to opperate closer to the pivot giving the designed lift and overall duration @ the seat.
I am interested to hear if you have you built any big bhp N/A pinto's? ever tried a roller cam with 0.650" lift or so?
The next pinto I am building will be interesting, 0.650" lift roller cam, 5.7 rods, slipper pistons, 48's etc.
Regards
Jason
Hey Jason,
Not really a N/A guy..
I like my Pinto to idle smoothly and put the power down with the Turbo.
The first Turbo Pinto engine I built in 1981 was a BEAST.
There is NO WAY a N/A pinto will out run a Turbo Pinto
I'm running the biggest cam I ever ran now with the .480 lift at 276 adv. dur. This engine is in a heavy car with lots of ALPINE stereo. It will still blow the doors off a common V8.
300HP on juice + alcohol 2350 lbs...
T-5 trans with T-Lock 4.11 gears.
To be real honest I am happy with 100Hp in my show cars.
That make no noise at all.
I guess that is because anytime I'm ready to scare the crap out of myself I can do it???
Don't get me wrong I want to build a N/A Pinto with HP but right now I am building a 1.6L to run on E85 flex fuel.
Hopefully get 30+ mpg.
From Pintony
Here is photo Of my Pintos at the Route 66 Festival.
Notice the speakers and the flame job on the hood.
Also notice the custom rear lights that I made...
I have 14 Pintos the yellow one is mine too..
From Pintony
Last edited by Pintony; 23-06-2009 at 18:12. Reason: Add more text
Dont want to Highjack the thread but this has really got me thinking.
So..if Im right me having bigger inlets fitted into my Inj head means I actually have less lift as the va;lves supplied by Burton are longer?
http://www.burtonpower.com/inlet-val...nto-ft392.html
What a crazy situation if thats the case.
Last edited by Graham; 14-07-2017 at 17:44. Reason: put a w in so the link worked
they are shorter! performance valves used to be longer to overcome small base circle needed when cams were ground on old blanks, modern cams have bigger base circles so no longer need longer valves.
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