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KL Racing stroker cranks

S

Sam b

Active member
Joined
Dec 3, 2016
Location
Fort wort
Curious to see if anyone has any experience with, or knows of someone who has ran one of the bigger cranks that KL offers. Wondering how they run and what type of power is put down compared to a similarly built 2.3.
 
I know I read on welll known Volvo mods website, that he did 2.5 stroke. He was not happy with the results for as much he put into it. Im sure others will ring in here.
 
The cranks are fine. Like all new engine parts, you’ll want to have it checked over and balanced.

I’m a fan of bigger stroke engines. You can spin the 92mm cranks 8k+ and be alright in a race car.
 
If someone built an engine and were unhappy with the gains they got for the money they spent, that's not an issue reflective of the parts used but the ability of the engine builder to make an engine that performs well.

I tend to believe that a redblock would use it's displacement more effectively to make power if it was just slightly under square, it's already so under square as it is.
 
OVERDRIVE said:
If someone built an engine and were unhappy with the gains they got for the money they spent, that's not an issue reflective of the parts used but the ability of the engine builder to make an engine that performs well.

I tend to believe that a redblock would use it's displacement more effectively to make power if it was just slightly under square, it's already so under square as it is.
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agree, my wording was not the best. KLracing stuff is top knotch which was the question. I appreciate ya.
 
Wheel_Wizard said:
Tinus Tuning sells a 3L stroker kit. It's a bit expensive tho, but that extra torque must be nice.
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It's not that expensive for what you're getting (forged crank, h-beam rods, forged pistons). The power they are getting with that kit on a modified 8v NA is absolutely bonkers.
 
culberro said:
It's not that expensive for what you're getting (forged crank, h-beam rods, forged pistons). The power they are getting with that kit on a modified 8v NA is absolutely bonkers.
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If it is anything like their 2.5 and 2.6L B20 setups I can believe it. The torque is insane.
 
culberro said:
It's not that expensive for what you're getting (forged crank, h-beam rods, forged pistons). The power they are getting with that kit on a modified 8v NA is absolutely bonkers.
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I mean, if you compare it to a 98 mm crank from KL Racing with some H-beam rods and Wiseco pistons, you end up saving 1,000€+ at the cost of ~100 cc. I don’t know if that really makes a difference, but 1,000€ is still 1000€
 
Wheel_Wizard said:
I mean, if you compare it to a 98 mm crank from KL Racing with some H-beam rods and Wiseco pistons, you end up saving 1,000€+ at the cost of ~100 cc. I don’t know if that really makes a difference, but 1,000€ is still 1000€
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For sure, and you can get the displacement back with a larger bore. There is some figuring out and math that needs to be done to make all those parts work.

You can also buy the 101mm stroke crank from China for $550, get rods and pistons, and save even more money. You just end up with greater risk as the cost decreases.

spock345 said:
If it is anything like their 2.5 and 2.6L B20 setups I can believe it. The torque is insane.
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350+ crank Hp, 250 lb-ft with an 8v head.
 
culberro said:
For sure, and you can get the displacement back with a larger bore. There is some figuring out and math that needs to be done to make all those parts work.

You can also buy the 101mm stroke crank from China for $550, get rods and pistons, and save even more money. You just end up with greater risk as the cost decreases.



350+ crank Hp, 250 lb-ft with an 8v head.
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Where do I get a 101 mm crank for 550 $? For that kind of money, I would even put it in one of my trashy B230FT engines I’ve got lying around, just for the sake of science. I mean, what could possibly happen :x:
 
Wheel_Wizard said:
Where do I get a 101 mm crank for 550 $? For that kind of money, I would even put it in one of my trashy B230FT engines I’ve got lying around, just for the sake of science. I mean, what could possibly happen :x:
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China, where else!

You can also get the 101mm crank in a 4340 forging for around $900:
 
I have seen the 900 $ version, but I’d rather go with the 98 mm from KL Racing and be safe. It costs about the same without the possibility that my engine suddenly decides to disassemble itself :tux:
 
Wheel_Wizard said:
I have seen the 900 $ version, but I’d rather go with the 98 mm from KL Racing and be safe. It costs about the same without the possibility that my engine suddenly decides to disassemble itself :tux:
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I’d venture to say that they are the same forgings, just finish machined in a different location. Most casting and forging work in the world are from the same few places.
 
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