so i came across a good deal on a knife edge eagle crank. nib. my ? is i already have my complete rotating assembly.machined ls crank, ls rods,arp rod bolts, acl duraglide bearings, 85mm rs machine pistons. the block is ready to go also but im waiting on getting head work done before i assemble the beast.

is the gain in tq/hp worth the extra money i will have to spend? to make this complete like rods and new bearings? could i still use my same pistons or would i need to upgrade to a custom?

thanks for the input you am guys.

 

dont even bother with those eagle knife edged cranks.., stick with oem. my friend had a knife edged Eagle crank that he claims ruined his oil pump.

 

I have also seen Eagle cranks crack, I would stick with the 89mm stock crank.

 

Was it not balanced properly? That's usually the case.

 

I couldn't tell you if it was balanced or not. He got about a thousand miles on it before the pump went out. The lighter crank will probably lack torque in lower rpm and be more unstable in high rpm. I think the problem lays within balancing the counter weights to the right piston/rod combo. You ever wonder why a Type-R crank weighs more than a GSR? there's a reason for it. I believe its because a heavier crank is more stable at higher rpm. I'm sure having the rotating assembly balanced all together would be a great benefit while using a knife edge crank. You may achieve higher rpm but is it really worth it. What kind of driving would you be doing with this engine if you dont mind me asking?

 

Just occasional drag strip time and street driving. The new trend in town is track racing so I might try that out. I do drive a lot like 4-500 miles a week

 

Don't think a 95mm stroke motor would like road racing...we'll you'd wanna keep the revs down if you want it to last

 

Okay then, in that case stick with the Ls crank bro. It wouldn't be a fun car to drive on the street since it will have less rotational inertia when compared to a stock crank. You will be better off since you drive the car often.

 

Light weight eagle cranks a junk i have personaly broke one.

 

Dam. So if u don't mind me asking how did u get a 2.3 b motor? I'm figuring my total displacement will be 2.0-2.1 ltrs

 

2.3L b-series... gonna need HUGE bore and stroke, like don't drive it on the street huge.
86x95 is still only 2.2

 

95 x 85 is considered a 2.2L and a 95 x 87 is considered a 2.3L by Honda standards.