|
|
11-09-2008, 11:40 PM
|
#1 |
|
Junior Member
Join Date: Nov 2008
Posts: 3
Likes: 0
Liked 0 Times in 0 Posts
|
s/s legal crankshafts
hi,
is there a NHRA approved crankshaft list? The rules seem to be a little bit vague. thanks, shawn |
|
|
|
11-10-2008, 09:40 AM
|
#2 | |
|
VIP Member
Join Date: Feb 2003
Location: Glendale, Arizona
Posts: 3,034
Likes: 710
Liked 1,535 Times in 572 Posts
|
Re: s/s legal crankshafts
Quote:
 Nevertheless, this is a link for specifics on SS crankshafts: http://www.nhra.com/content/sportsma...9848&zoneid=85 |
|
|
|
|
|
11-10-2008, 11:08 AM
|
#3 |
|
Veteran Member
Join Date: Mar 2005
Location: Sand Springs, OK
Posts: 8,132
Likes: 896
Liked 390 Times in 170 Posts
|
Re: s/s legal crankshafts
When I bought my Scat the standrard deal had a knife edge. Getting one like it without the knife edge was going to cost another $500.00 because it would be a custom order. Wesley says it is OK to grind the knife edge off, and form a radius like the rule permits. Much cheaper. I wish I had ordered one now, so I could get the small journals and .010" or .013" added stroke. If I have this one reworked I'll likely have more than the cost of a custom shaft.
You might talk to John at Bullett cams. He stopped to visit at Memphis and told me he was doing cranks also. If I had known I would have gone to him first time. I think I read where Woodro used him also. John knows what is and isn't allowed. The price he gave me was $100.00 less than I paid for the one I have. Hindsight, right? 
__________________
Ed Wright 4156 SS/JA Last edited by Ed Wright; 11-10-2008 at 02:33 PM. Reason: grammer |
|
|
|
|
11-10-2008, 12:13 PM
|
#4 |
|
Senior Member
Join Date: Jul 2007
Posts: 805
Likes: 0
Liked 3 Times in 1 Post
|
Re: s/s legal crankshafts
Ed, yes i have been using Johns Cranks ever since he got into the Crank Buisness. Never had problem one!
__________________
Woodro Josey 2002 STK |
|
|
|
|
11-10-2008, 02:16 PM
|
#5 |
|
Junior Member
Join Date: Nov 2008
Posts: 3
Likes: 0
Liked 0 Times in 0 Posts
|
Re: s/s legal crankshafts
Awesome. Thanks guys. SInce I was considering have John do the cam,too, i'll ask him about the cranks. Make it a onestopshop!
thanks, shawn |
|
|
|
|
11-10-2008, 06:12 PM
|
#6 | |
|
Member
Join Date: Sep 2003
Location: usa
Posts: 256
Likes: 1
Liked 1 Time in 1 Post
|
Re: s/s legal crankshafts
Quote:
Can additional weight, such as heavy mallory, be installed in the counterweights? (YES, BUT only in amounts relative to a "normal balance job". A normal balance job on a Super Stock engine such as a SBC 350 may involve turning down the counterweights to balance up with the "lighter than stock" piston/pin/rod assembly.) What is considered a "normal balance job"? Is 1 inch off the diameter of the counterweights considered normal to balance a "lighter than stock" piston rod assembly? Or is it 1 1/2 inches? Or 1/2 inch? Which one of these dosen't "look right" in tech? How many holes drilled in the counterweights parallel to the crank centerline are allowed? |
|
|
|
|
 |
|
|
Linear Mode
