Doctro X

iTrader: (2)

So i decided to get the manley 100mm SLW crank as i am taking out the forged crank that i have in it before.
I am hoping to rev a lil bit higher as everything is balanced and the rotating assembly is lighter . My goal is 1000WHP....now my only concern is that with such a light crank , i am hoping that it does not flex as i go up in rpm and torque.
Any reviews before i complete my block re-build ?

Migsubishi

iTrader: (38)

Don't do it, it will flex. Pm Tomcompusa about it, either he or a customer of is used to run one.

Abacus

iTrader: (9)

If you are going for over 700whp or so a 88mm or 94mm would be a better choice. The SLW crank is nice for lower numbers but since material is taken out AND its got long throws that can put a lot of stress on the crank.
The 100MM crank is better for lower levels and making a fun street car with more lowend and better spool up.

A billet 94mm crank with Carillos, HD pins (.250 wall dlc pins) and custom CP's would be a nice combo. I run that combo and am quite happy with it. Strong, lightweight,and proven.

Doctro X

iTrader: (2)

my setup is the manley turbo tuff rods , 85.5 1400hd pistons with the 100mm manley forged crank, buscher stage 3 head with gsc r2 stroker cams , magnus intake , and i make 874whp with 690tq on 41psi /7800rpm ....decided to get the manley SLW knife edged crank to help push the car a bit to the 1000whp mark....wanted to stay 2.3 as i like what my torque figures was looking like and the fun on driving on the streets.
Any suggestions on what's the best crank to get for over 1000whp and should i go 2.2 long rod or just go 2.0 long rod to achieve my goals...

Abacus

iTrader: (9)

The 100mm crank can flex at extreme loads .This will lead to bearing wear, or it could break. I would recommend a 94mm Billet crank of your choice. With a 4g63 block you don't want to go longer then 153mm rods because the compression height would be under 1.134 and that wouldn't be ideal for max power.
A 94/153 combo is good to around 9300-9400 rpm

A smaller crank will also allow you to rev high to make the power you are looking for.