K series cranks=weak?

3363 Views 25 Replies 17 Participants Last post by vteczone, Mar 15, 2006

fearless_dsm

Discussion Starter · Oct 19, 2004

A friend of mine was at the nopi race in dallas with his all motor car and noticed Norris(K powered insight) broke often.He mentioned that it was crank realted and that the crank was twisting with that much rpm.Im not sure as too how much truth is in this,as I have been working with K motors since 2002 and they seem to be much stouter in every area than the B engines.But also mentioned to me about about the crank skunk was running and that they rarely ever break.
Question is,are the K series crank weak when it comes to high rpm?Ive never taken one that high with as much power as Norris put's out.

Save

21 - 26 of 26 Posts

chunky`

· #21 · Mar 12, 2006

sf-si-02 said:
There is a turbo a3 that had crank walk on ephatch...

I think I vaguely remember that thread. However, I don't think that guy ever checked his main bearing journals to see if there was actually crank walk or if his bearings toasted for other reasons. Making such diagnosis without proper inspection of the block carries little weight IMO.

Save

BG Enjoi

· #22 · Mar 13, 2006

Just out of curiosity.. What hp levels is the insight pushing?

- Dan

Save

rsxdude

· #23 · Mar 13, 2006

BG Enjoi said:
Just out of curiosity.. What hp levels is the insight pushing?

- Dan

If you're talking about Norris's insight, then I'm sure it's pushing in the low-mid 300 range. Most all-motor vehicles are pushing around that hp level to hit those 10's and 9's.

Save

carl

· #24 · Mar 13, 2006

You have to remember that these max. effort cranks are cut down to extremes.

Save

elmo3383

· #25 · Mar 14, 2006

i think just put s2000 crank in a k24 and call it a day and rev like crazy!!!

Save

vteczone

· #26 · Mar 15, 2006

well.. where i am,some racers like to spread rumors of something which is the opposite from the truth,esp when the truth is something that will put them at the advantage..

im not sure about this thread but who knows..

Save

21 - 26 of 26 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month