mandbsheldon
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| posted on 13/9/04 at 02:05 PM |
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Standard Pinto bhp
Is it worth fitting a high lift cam, in a standard 20Lt Pinto. How much extra bhp do you gain? Does it make a noticable differance in performance?
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locoboy
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| posted on 13/9/04 at 03:30 PM |
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if its a bog standard pinto and your only looking at spending a couple of hundred quid i.e FR32 cam kit. I think your money would be better
spent on a decent exhaust manifold and downpipe - it transformed my bog standard 2.0 pinto and made it so much more fun to drive. Never had it
dyno'd but i reckon mine gave a 5-10bhp increase with new exhaust bits alone.
If you have a i limided tuning budget the trick is to spend it in the right places.
No doubt someone will tell me im talking plumsacks but i would spend it on exhaust first - after all if you can get more air/fuel mixture in, it aint
going to do you any good without getitng it our too after its burnt 
ATB
Locoboy
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mandbsheldon
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| posted on 13/9/04 at 03:52 PM |
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Pinto bhp
Thanks for that. I've got the MK, stainless system which has a tubular 4 branch manifold. I've also put on it a twin choke webber carb.
The perfomance is ok, but I wondard, what is the next thing to change, to give me a noticable differance. Or is that the limmit for the Pinto. Is it
worth spending £300 odd quid for 5 or 10 more hourses, would you notice?
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locoboy
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| posted on 13/9/04 at 03:55 PM |
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i would say fro the 300 odd quid your better off biding your time and snapping up a pair of webbers at the right price. All IMHO of course.
ATB
Locoboy
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macspeedy
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| posted on 13/9/04 at 04:19 PM |
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webers will make a big dif, the most for your money, i have fitted a fr32 cam and a pair of 45's its wonderful! first day on the road today!
lots of grunt! 
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ady8077
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| posted on 13/9/04 at 04:22 PM |
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Hi
If you havn't got your engine yet try and get an injected pinto, scrap the injection stuff and fit twin carbs, mine makes 135 bhp with no
internal mods
Adrian
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NS Dev
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| posted on 13/9/04 at 04:51 PM |
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Up to you but my old road rally engine made 135 hp on the single 32-36 twin choke weber (rejetted), and a couple of hp more on the 38 DGAS (3lt capri
carb which fits the std carb manifold)
This was with bog std manifold (just cleaned up on the internal radii), re-jetted carb, skimmed head, mild porting job and a s/h piper 285 cam kit
with new followers and double piper springs. Oh yes, and an ashley 4-2-1 exhaust manifold.
I would personally forget the porting part of the above, fit a late injection head (which would flow better than my ported early one anyway and would
have hardened seats as a plus point) and then just fit a Piper/Kent 285 cam kit (fast road/road rally type kit) and most important, get the head
skimmed, it's a £30 job that makes a massive difference on a pinto.
Unless you are going for bigger valves and over 140hp, the twin webers will just use more fuel to make the same amount of power.
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stressy
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| posted on 13/9/04 at 08:10 PM |
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Having had a pinto with twin 40s of my own i drove a friends 2l with a single downdraft a high torque "towing" type cam and a lightened
flywheel, it was hugely torquey, so if you like tail out fun and hooning its a good cheap choice and you will notice the difference. It drives like a
v6 and combined with the fly it klaes for grunty acceleration(£175 ish for the cam, £100 flywheel)
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NS Dev
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| posted on 13/9/04 at 08:18 PM |
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Nice one stressy! I didn't mention the torque on my old road rally car (sierra) but I also ran (still do actually) a 2.9 Sierra XR4x4 as an
everyday car and acceleration wise there was nothing between that and the road rally car with the pinto in it. The 2wd one had a 1600 diff so that may
be shorter geared? Felt it but I never found out the actual ratio! Anyhow, yes even with a road rally cam it pulled really well from 1500 rpm upwards
and really went a lot better than it should have done really (the whole engine only owed me £300 when I dismantled the car!!)
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NS Dev
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| posted on 13/9/04 at 08:21 PM |
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PS. Stressy, just had a look at your photo of the car with the K in it! Nicely done, you got the engine mounted well back!! Looks really neat I have
to say!
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mandbsheldon
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| posted on 14/9/04 at 03:07 PM |
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bhp
Thanks guys,
Looks like the cam is the way to go. Big job? I've never done one.
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Peteff
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| posted on 14/9/04 at 05:17 PM |
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Standard 2 branch cast exhaust manifold is good for up to 140bhp with the right boxes according to local tuners.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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NS Dev
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| posted on 14/9/04 at 06:14 PM |
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I think it will easily flow enough for 140hp but you can get better power spread with a correct tuned length 4-2-1 manifold. (ran my road rally car
with both and the 4-2-1 was better)
Cam is not a massive job. In very brief outline..(haynes manual has all the detail). take off cylinderhead, strip, clean up while it's in bits,
reassemble all the valves with the replacement heavy duty springs (usually double ones), put the new cam in, put the new oil spray bar on (this MUST
be replaced unless it was new anyway), wind the adjuster studs down and put the follower fingers in, roughly set them (follow Haynes), put the head
back on (follow Haynes again, put all the other bits like the cambelt back on!) set the valve clearances and lock off the adjuster studs, coat the cam
with camlube, put the rocker cover back on, start the engine and run at 3000rpm (?, check with cam supplier) for 3-4 minutes. stop engine and readjust
valve clearances, restart and run at 3000?? rpm again for a couple of minutes, job done!!
This is all assuming you use a standard non-adjustable cam timing wheel. If you want it absolutely perfect then you need a vernier wheel. If you want
to do this ask and I'll explain how to time the cam in properly and simply on another post!
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stressy
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| posted on 14/9/04 at 07:13 PM |
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NS Dev,
Ive just put a new image in my photo archive which better shows the engine position. And thanks for the comments, it was an intersting conversion but
worth every hour spent on it, i now have a nice tail heavy car!
MandB,
Good luck with the cam, i think youll enjoy it, i cant say enoght he effect the flywheel can also have
Cheers
C
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