3100 camshaft question

[TheProfessor]

does anyone know who could make me a custom spec roller cam for a 3100

and another question
what is a regrind exactly

[bszopi]

Crower can make you one for around $800 and 6 month wait period.

A regrind is just take a stock cam and grinding the lobes to a different profile. You can get more lift and longer duration, but you can't change the LSA and some other factors. But you can get one for around $120.

Comp Cams should have a few 3x00 cams in production hopefully by the end of the summer.

[TurboZ24]

Crower can make you one for around $800 and 6 month wait period

Well, when I called last time for something else, the rep I usually use said 500.00 and couple of months.

[vsop4me3.1]

On the camshaft page it says
" but for more radical grinds, custom length pushrods and custom tuning will be required to see decent gains. Here are the specs from my Crower regrind:

Duration : 214º intake / 214º exhaust (@ 0.050" lift)
Advertised : 274º intake / 274º exhaust (@ 0.001" lift)
Lift @lobe: 0.302"
with 1.52 stamped rockers : 0.459"

And here are Chris William's specs from his Crane regrind:

Duration : 220° intake / 224° exhaust (@0.050" lift)
Advertised : 276° intake / 280° exhaust (@0.001" lift)
Lift @lobe : 0.310" intake / 0.319" exhaust
with 1.52 stamped rockers : 0.471" intake / 0.485" exhaust
with 1.6 roller rockers : 0.496" intake / 0.510" exhaust

These are both considered radical grinds and will not work well with stock programming. Discussions on the forums have indicated that a good performance grind for these engines would have a duration of 206º intake / 210º exhaust (@ 0.050" lift) and a lobe lift around 0.295". This should still give you good idle quality, yet provide a gain in performance. "

would I need to change pushrods for any of these grinds? or just computer tuning?
Basically I'm looking for a good performance grind without changing more that the cam and the PCM, If it's possible.

[feavs]

I believe JBP also carries regrinds for the 3x00 motor. I think spookything used one in his 3400 sfi swap.

you should ask them, i think spookything even had it dyno'd before and after as well.



feavs

https://www.feavs.com