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Thread: Opinions Stroke or Bore

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Posts: 31-40 of 45
2014-10-16 01:44:51
#31
Originally Posted by oldeskewltoy
@ what rpm do the Kelfords make peak power?

that depends on the model of kelford cam you are referencing.
2014-10-16 05:57:43
#32
Originally Posted by Kyle
Originally Posted by oldeskewltoy
@ what rpm do the Kelfords make peak power?

that depends on the model of kelford cam you are referencing.


TheSam mentioned in his first post Kelfords... but nothing else... if he is planning on BIG duration... then it is wiser to go with the shorter stroke, if he is running relatively mild duration he can add the stroke
2014-10-16 09:29:07
#33
184-C4s
2014-10-16 17:31:17
#34
Originally Posted by TheSam
184-C4s


Originally Posted by Kelford
The main lobe is the same as our mega popular 184-C 314/312 Duration, 12.50mm/11.80mm Lift.


not knowing SR20 as well as I know Toyota's 4AGE... but if I were a gamblin man... I'd say these cams are designed for twisting... so keep the stroke short
Last edited by oldeskewltoy on 2014-10-16 at 17-32-25.
2014-10-16 19:49:41
#35
Twisting?
2014-10-16 21:59:41
#36
Originally Posted by TheSam
Twisting?


slang for revving high, turning up a high RPM, etc...
2014-10-16 22:49:32
#37
At over 300* duration I sure hope they were design for twisting.
2014-10-17 16:39:52
#38
N1 Cams FTW!!
2014-10-17 17:27:09
#39
Originally Posted by Payu
N1 Cams FTW!!


Agreed.
2014-10-17 18:57:22
#40
Originally Posted by Payu
A 92(s)x86(b) 2.135 motor will not produce much more torque than a 86(s)x88(b) 2.092 since both have same displacement!!!
All else being equal as far as displacement and flow is concerned, the engine with the larger stroke will make heaps more torque. It's all in the leverage on the crank. You'll have faster pistons speeds, which limit your revs...


For me, it's simple. Do the bore, not the stroke. In your case it is simpler, more reliable, cheaper, and in theory I will take bore over stroke any day of the week for the higher revs, power, lower torque, etc.
But that's me...
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