Any opinions

[one eyed mick]

Any opinions ,reccoms etc for camshaft for 2.1pinto with inj head /std valves fast road use ,other spec vernier, 10.5 ish cr ,38 dgas,421 ex man looking at 2 to 6.5k rpm . R32 or Newman ? don't want a screamer ,thanks in advance

[PeterBurgess]

Lots of Pinto engined cars we see use Piper 285s, RL31, RL32. I haven't seen Newman cams in Pintos yet to test. From what we have seen on many other engines Newman are pushing low rpm torque as the Holy Grail.
What we have seen is that a pair of 45s is the way to go for good power from say 3000 upwards. The 38DGAS never fuels properly for part throttle cruising and low rpm acceleration. The non-progressive chokes may well suit a 3000 cc V6 but are not at all happy on Pintos, even with some carb specialists...this mod makes em perfect on Pintos! If you do not want to go the twin 45 route why not use a standard 2 l twin choke carb?
Peter

[PaulKemp]

Your 2k to 6.5k rev band needs a low duration high lift cam
FR30 FR34
I like the FR32 as peak power is about 5700 but likes to rev so always hit 7k
The RL31 really does not do anything untill 4k

[one eyed mick]

thanks for replies Iwould like to stick with the 38 dgas as it seems to work for me i.e.reasonable perf /economy but would like alittle more as the actress said tothe gardener ! ,rpm limit was erring to saftey for cast pistons and std rods very rarely use above 6k .I 'll do some more research

[one eyed mick]

Hi folks I think the path forward is sorted ,fresh rebuilt inj head r32 cam and dial the cam in accuratly .This hopefully will give me the figs I would like to see ,poss bigger inlets and port reshape next winter [ budget restriction don't allow it this year ] thanks for your help

[84Dave]

Look at www.schneidercams.com . California U.S. Best Pinto cams for us over here. -84Dave-