insane
New member
What is the difference between a srx 700 crank and a viper 700 crank and can a srx crank work in a viper? Thanks.
viper crank is call a pork chop and srx like other cranks
2000 and up srx cranks will fit in a viper
The viper crank was designed slightly lighter then the SRX's with its pork chop design like darv said
The viper crank was designed slightly lighter then the SRX's with its pork chop design like darv said
Sex crank works well. In the viper it will rev up as fast, but it will pull way harder/be way torquier. I ran one in my viper for more than a year in my spare motor. I did not even need to change my clutching.
Can you explain this?kirkswim said:
been on the dyno both ways, engine didnt make any more power either way. what you gain in weight loss with viper crank, you lose in crankcase pumping efficiency with the full circle crank of the srx.
6 of one, half a dozen of the other
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6 of one, half a dozen of the other
.ottawaair
New member
Were the HP torque curves the same, or just the peak #'s. Was one better at a given rmp or anything?
Okay I know it is seat of the pants but, with stock viper crank stock motor, with the clutching I have(HC40-10's) my 136" viper is pretty much neck and neck with my dad 05 700 venture(HC40-10's). With the Srx bottom end and viper cylinders, srx head, Venture would take me to 50mph then I would pass the venture and get about 3 sled lengths ahead. After 90mph I would start walking away from him. Both sleds hitting 8600rpm.
Other thing was with the viper motor I could never get the ski's off the ground. With the SRX bottom end my ski's would lift 2-3" off the ground.
With the srx bottom end last year I topped out over a Arctic Cat 800 tripple with tripple pipes by about 5mph. I am clutched for on off trail and have a 136" ripsaw.
Maybey I am lucky and the used motor I bought has had something done to it. But the pistons are stock bore and stroke, have no boost ports and the cylinders are not ported(looked with a bore scope).
Other thing was with the viper motor I could never get the ski's off the ground. With the SRX bottom end my ski's would lift 2-3" off the ground.
With the srx bottom end last year I topped out over a Arctic Cat 800 tripple with tripple pipes by about 5mph. I am clutched for on off trail and have a 136" ripsaw.
Maybey I am lucky and the used motor I bought has had something done to it. But the pistons are stock bore and stroke, have no boost ports and the cylinders are not ported(looked with a bore scope).