Custom Billet Crankshafts.....

I know that you have listed the possible price of 2300 for the crank. Are you trying to get a KIT price that will take it to the next level? What kind of issues now will come with the current heads? By this I mean with every power level, any engine will run into problems. It will start with the lower quality stuff first. Once that is fixed something else will go. Are you confident that the SC top end will withstand 700hp?

BTW, what is Wise driving now? And who got his old car?

Chris
 
It ran in the NHRA Sport Compact series. It wasn't really an SC motor anymore though.

The valvetrain in these motors is pretty much the same as any other SBF so as long as you have upgraded parts appropriately there should be no valvetrain issues. As for cylinder head flow...well, that may be come an issue but I'm not ready to put artificial limits on it.

To make 500rwhp at 400ftlbs torque requires 6500rpm which is 1000rpm more than what I had with my stock block motor. I think this is a reasonable goal, most likely it is achievable with a stock crank, but it would be much easier with some better parts...
 
DamonSlowpokeBaumann said:
Nelson Hoyas Ford Focus...3.8 punched to 4.7 Twin Turbo..Based of a Thunderbird motor..Look it up:O)
Click to expand...

The only thing I can find in a search is Nelson Hoyos.He runs a
chevy,with a 4 cylinder chevy motor.

I could not find a Nelson Hoyas in NHRA compact racin.
 
Here's a picture of the motor....



1300hp.jpg
 
seawalkersee said:
BTW, what is Wise driving now? And who got his old car?

Chris
Click to expand...

When his 35th Anny was rear ended just after being painted, he swapped the drivetrain over to a 93 SC. I bought the 35th from him, and I still have it. I'm not sure who owns the 93 now. The 35th ran 11.9's, and he was able to get the 93 all the way down to 11.16, IIRC.

-Rod
 
Kenny Duttweiler had a part in building that motor..Hoyas motor that is...Maybe if you give him a call you can get soem infoo
 
Dave, you listed an rpm for hp level. What does this depend on? Is there a valve/number of cyl.x rpm or some formula that you have? Is it possible to make that much power lower in the rs?

Chris
 
DamonSlowpokeBaumann said:
Kenny Duttweiler had a part in building that motor..Hoyas motor that is...Maybe if you give him a call you can get soem infoo
Click to expand...

he is not in my phone book.Would he have a buisness name?
or a web address? I really would like some more info about
this motor.

My e-mail address is rbpertek@csuol.com
Thanks RANDY


Chris… David uses two slid-rulers taped together.To get the RPM to horse power ratio.:)
 
seawalkersee said:
Dave, you listed an rpm for hp level. What does this depend on? Is there a valve/number of cyl.x rpm or some formula that you have? Is it possible to make that much power lower in the rs?

Chris
Click to expand...

HP = tq x rpm / 5250

Yes, you can make the power at lower rpms but cylinder pressure must go up to do so.
 
I was looking for something along the lines of valve size and number of valves or something to that effect. Thanks though, I will remember that.

Chris
 
No, I'm not saying that the motor won't or can't make more power. I'm saying that if we could rev a little higher we could achieve our HP goals without lifting the heads.
 
Bob Simms (St. Louis area guy who doesn't post much) bought Chris Wise's 93 with the offset grind stroker crank. He installed a Gear Vendors overdrive and drove it off and on for about a year, then sometime last year I heard he blew the motor and it's just sitting now.

David
 
Randy

Duttweiler Performance
1563 Los Angeles Ave.

Saticoy, CA 93004

805 - 659 - 3648


My v8 turbo cam is from him..He used to be the guru of all that is Grand nationals..And even got into the stangs turbo wise..I forgot the machine shop he used but give him a call mayeb he can help..I'd love to know

Thats what franks motor shoulda looked like;IO)
 
I had two built

"My two stroker cranks"

Had mine made by Crankshaft Specialist Co. at a cost of $2100.00 ea one I sold to Valintino of Southern Calif with Eagle Rods. he can tell you how nice that crankshaft is contact Crankshaft Specialist Co. have one built. look for Val to thunder hard into the record books soon. We put 427 cranks made by Crankshaft Specialist Co. into Cobra engines there the best.

Contact info (901) 452-6663

280 Tillman/Po Box 12535
Memphis,Tenn. 38112 (Ask for Doug Rowe)
 
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Well, the contact I was working with has gotten back to me with some numbers and I'm a little discouraged. Seems either Crankshaft Specialties or Moldex are the two best choices at the moment and costs with them are around $2500.

The new company will sell them for $2500 also but they require an initial production run of 5 units and of course someone has to pay $5000 the prototype.

Ouch.
 
Dave,
thats a lot to be putting out for a crank.
I know CNC time costs as does 4340 I think thats what they use but still it's a lot.
I'm woundering how hard it would be to do up a CNC program something I can do my self and then get some one to run it for me. This Might be the way to go about making an billet crank.

Now i'm starting yo think :)
 
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