Jonte
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| posted on 23/1/06 at 06:11 PM |
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How do I light tune my Pinto EFI?
I want to do something about my -88 Pinto EFI engine (205 block) to get some more power out of it.
And I´m thinking about in the first step just do the cylinder head with modified ports, another cam and maybe bigger valves.
What cam can you recommend for me. And where to buy it.
Even read a post where someone suggested a cosworth head.
Is that possible without modifications?
Or do you know anyone that´s gonna sell a modified head that suit my fuelinjected Pinto.
I´m going to Stoneleigh this year and it´s not that hard to take a cylinder head as handluggage on the plane.
My friend bought 2 carbon seats last year and took on the plane home.
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mark chandler
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| posted on 23/1/06 at 07:34 PM |
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I,d suggest you first task is to get a book on tuning, Dave Vizard did an excellent one on Pinto's.
I followed this with a carbed engine, 60 thou off the head, larger inlet valves and porting increased the power by 30% with standard cam (its actually
quite a good profile).
Regards Mark
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DarrenW
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| posted on 23/1/06 at 07:56 PM |
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Im no pinto expert but am learning fast. I read Des Hammills book many times and thoroughly enjoyed it. Ive since ported my head and fitted FR32 cam
onto std bottom end. Feels very strong on the road. unfortunately no rolling road figures yet. Its also got full stainless 4 branch exhaust and 38DGAS
carb). Fr32 is not silly high lift (fast road) and ticks over very nicely, power comes in low down.
Mookaloid will no doubt be along soon and will give you some sound advice. He is currently assisting me to great effect. I guess one of your problems
will be being restricted with injection system (i assume you are running std injection to keep yourself right with the law??). What exhaust system you
got?
Do you have any books? I only have Des's book but would love to get hold of Sir Davids as well. Email me if you dont have Des Hammil book .
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NS Dev
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| posted on 23/1/06 at 07:58 PM |
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FR 32 cam (or piper 285 which I think is very similar) are both very good, bags of low down torque and better top end than the std cam.
For once a cam swap that has no downside.
Used to use one on the sierra road rally car to very good effect in combination with a 38 dgas carb, when set up it was spot on!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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Dusty
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| posted on 23/1/06 at 09:25 PM |
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If you want to keep the standard ford fuel injection both Kent (FR34) and Piper(can't remember the number) make a cam designed to work well with
it. Fit a vernier pulley. You can do a lot with some simple head mods without fitting larger valves. A skim to raise CR, three angle valve seats and a
little blending of the ports. See Dave Andrews website Modifying the pinto head Download
[Edited on 23/1/06 by Dusty]
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mookaloid
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| posted on 23/1/06 at 11:03 PM |
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Hi Jonte,
The secret to getting power out of the Pinto is to improve the breathing through the cylinder head.
The things holding your motor back at the moment are the standard inlet manifold, the ports, and the cam. You have a good exhaust system already
you don't need bigger valves for a mild tune but if you use one of the cams mentioned above, do some porting as in one of the books mentioned
and put some throttle bodies on you will see some big improvements - I don't know what ignition you are using but this might need some attention
too.
Feel free to ask me any questions you may have
Cheers
Mark
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wment
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| posted on 24/1/06 at 12:26 AM |
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I am not familiar with the model you mention but for the SOHC 2000cc engine you can change the cam timing by redrilling the dowel hole in the top
timing belt pulley. Usually 2 deg will not be felt in the seat of the pants but is seen in timed runs like drag racing. Keep the change to under 6 deg
or valve interference may occure.
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Jonte
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| posted on 24/1/06 at 06:14 AM |
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Thx for all replies.
For the moment I´m gonna use standard Ford ECU, but I´m gonna change to Megasquirt this year.
And the injection stays there due to some laws here in sweden when I SVA´d the car.
quote:
Also I recommend you get a Burtons catalogue (free) by post. It's also an interesting read plus they sell everything you might want.
Hi Dave
Got that catalog and it´s nice reading.
And we will be over at Stoneliegh this year too 
quote:
The things holding your motor back at the moment are the standard inlet manifold, the ports, and the cam
Where is it possible to find another inlet manifold that fits under the hood of MK Indy?
So where do I find the FR32 or FR34 cams at the best price?
[Edited on 24-1-06 by Jonte]
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mookaloid
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| posted on 24/1/06 at 08:25 AM |
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quote:
Where is it possible to find another inlet manifold that fits under the hood of MK Indy?
So where do I find the FR32 or FR34 cams at the best price?
throttle bodies are the way forward
cams come up on ebay quite often
cheers
Mark
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Jonte
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| posted on 24/1/06 at 11:35 AM |
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I´ll stick to the injection on my engine.
Found in Burtons catalouge that FR34 is for the FI pinto.
quote:
cams come up on ebay quite often
See if I place an ad here and other forums to buy one.
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oliwb
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| posted on 24/1/06 at 11:57 AM |
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When Mookaloid says throttle bodies are the way forward he doesn't mean carbs....throttle bodies are still injection except they are
individual....rather than having a plenum (big tank thing and maybe one throttle body controling the engine you have four seperate ones...this means
that you can get rid of the old pinto inlet manifold and fit a custom one so each cylinder in effect will have its own pipe leading to its own
injector and then the atmosphere....breathing will be much better and cos its injection you still get all the benefits of well metered fueling etc
etc....also should be OK with any laws etc as technicaly your not changing anything eg from injection to carbs where emissions are the
problem....throttle bodies work very well with any engine but especially pinto's where they can breath free.....If any of that is wrong
I'm sure someone will correct me....Oli.
If your not living life on the edge you're taking up too much room!
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Jonte
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| posted on 24/1/06 at 12:47 PM |
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ahhh....ok
You learn something new everyday
Can someone point me where to find info about that. Thats completly new thing for me.
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mookaloid
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| posted on 24/1/06 at 05:35 PM |
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quote:
Originally posted by oliwb
When Mookaloid says throttle bodies are the way forward he doesn't mean carbs....throttle bodies are still injection except they are
individual....rather than having a plenum (big tank thing and maybe one throttle body controling the engine you have four seperate ones...this means
that you can get rid of the old pinto inlet manifold and fit a custom one so each cylinder in effect will have its own pipe leading to its own
injector and then the atmosphere....breathing will be much better and cos its injection you still get all the benefits of well metered fueling etc
etc....also should be OK with any laws etc as technicaly your not changing anything eg from injection to carbs where emissions are the
problem....throttle bodies work very well with any engine but especially pinto's where they can breath free.....If any of that is wrong
I'm sure someone will correct me....Oli.
All absolutely correct. Do a search for Jenvey on the internet to learn about it, and have a read of this thread
http://www.locostbuilders.co.uk/viewthread.php?tid=8100
then find some Throttle Bodies off a motorbike to adapt to the pinto.
If you do this the FR34 might not be the best cam to use you might be better off with the FR32 or even FR33. The FR34 is for use with the standard
injection setup.
Cheers
Mark
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