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465, 472 or 521 serval?


wyoBASE

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Hello everyone. This is my first post on this forum. I've been out of the banshee game for the past few years but now i'm looking to get back into it and doing another build. My last banshee was a K&T 10mil cub set up for hill drags. 2-5, alky, out of frame pipes.. all the bells and whistles.

 

For my next project i'm looking to build a duner based machine. So I'm wanting a stroked serval of some sort. I want a torque monster, an absolute ridiculous over powered hand full of fun=) But I want.. TORQUE and lots of it. So that brings me to the question of what size serval is the best for what I want to do?? I know size isn't everything, its the whole package that makes these machines shine. I'm not looking for a pump gas set up as I know the more aggressive compression will help with my goal for torque and hp. But I also know that adding to much of an aggressive dome and compression can be a bad thing to. I plan on doing inframe sheears or cpi's and size appropriate carbs. All the necessary tranny mods and clutch set up. No corners will be cut. I'm looking for the best all around combo and set up to get the absolute most out of this engine for what it is.. a serval.

 

4mil super serval = 472cc  

 

10mil serval = 465cc

 

10 mil super serval 521cc

 

Now with the "super" cub on a 10mil (72 X 64) I remember talking to Kim from K&T about the added advantage of these over the normal 68mm set up. He said that the intake track was undersized for the displacement and not much of a difference was noticed. And the same could be said about the 14mil cub (68 X 68) But that was also on a cub build set up for drag racing. Is there a "worth it advantage" to doing a 521 serval over the smaller displacement options i'm considering? Since its not an all out drag racing set up and more an all around play machine i'm hoping bigger is better=)

 

    

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Ok so what does the torque curve and rpm look like with 73 X 58 pv cheetah compared to a big serval? Does CP industries still manufacture the pv cheetah cylinders?

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The cheetah is still available. But god damn that serval is pretty close to making it a nonsense move. It is hard to find cheetah graphs that are done right and still have the PV. Most are dyno runs posted are block off motors.

I have been trying to find a good 535 graph for a while now and there aren't many out there. If there is I'd like to see it laid on this super serval above^

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That is very impressive numbers. Definitely the kind of power i'm looking for. I want to hear real would experiences/comparisons though.. its hard for me to go on a builders claim.  

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I wouldnt even do the super serval unless you just wanted to. The regular serval cubs are just about the same if not more power than the super. A 10 mil serval is quite a bit cheaper to build and will be easier to tune in my opinion. I know of several servals that had tuning probs when they first came out. Now they have them lined out better.

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I wouldnt even do the super serval unless you just wanted to. The regular serval cubs are just about the same if not more power than the super. A 10 mil serval is quite a bit cheaper to build and will be easier to tune in my opinion. I know of several servals that had tuning probs when they first came out. Now they have them lined out better.

 

Yea, because 14HP and 7TQ is pretty close?!

 

Blue - 10mm Super Serval: 39m PWK - BB Shearer - Pump gas

Red - 10mm Serval: 35mm PWK - SB Shearer - Pump gas

 

 

 

gallery_8710_2055_63962.png

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