3100 Crank, and Cam

[eliteweapons]

I am building asupercharged 3100 gen III using the bowtie aluminum block and am looking for a forged crank. The only company I found with one is jbp. I am also looking for a custom roller camshaft but no one has any masters out. I want to change the stroke to 3.5 but have to find a raw casting first. Any help on locating these?

[geoffinbc]

What power are you looking to build? I think you are wasting money on a forged crank unless you are going to make over 400HP.

No roller cams are avalible yet. But you can get regrinds.

[eliteweapons]

Yes my target is over 400. I am running 20 lbs of boost in vortech v9-g trim. Had to have a custom balancer/pulley made to get the max rpms and efficiency out by 7400 rpm. I found one place that will make me a custom bumpstick but they want me to buy 5 cams.

[geoffinbc]

Alright a Forged Crank is in order then. See if you can figure out who supplies JBP because they will take a year and a day to get it to you. On top of that they will rip you off.

You will find 5 buyers for a 3X00 Cam on this site. Do they all have to be the same grind? Hell I bet you could find 5 people to buy blanks.

[eliteweapons]

No 4 will be cores only mine will have the finished grind on it. I can't find who is supplying jbp with the forged crank. I have only been able to locate billet cranks untill I found him. I checked with the major cnc dudes in the us but have no links to those in canada.

[geoffinbc]

Call J-Body and ask what brand it is, if they will tell you. They may not tell you but just say you wont buy it unless you know it is from a good company.

[Cliff8928]

Are you sure you can use the 3100 crank in the Bowtie block, I know the specs they give has the max stroke as less than that of the 3100 crank. (maybe nobody ever tried?)


Cliff Scott
89 BerettaGT
04 AleroGX

[TurboZ24]

I still think the stock crank is fine. I don't think anyone has busted one. Mine is doing fine running 8000 rpm and low 12 second runs. it even does fine when I have ramped the boost too 16 psi.

[geoffinbc]

Are you sure you can use the 3100 crank in the Bowtie block, I know the specs they give has the max stroke as less than that of the 3100 crank. (maybe nobody ever tried?)


Cliff Scott
89 BerettaGT
04 AleroGX

Yea it says it can be used with a 81.28 stroke. But I am sure it is a matter of a bit of clearance work or something.