Re: Time to build a pump gas motor...543" ... Indy's...
[Re: Chassisman]
#1550775
12/21/13 01:10 AM
12/21/13 01:10 AM
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Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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440-1 heads are going to push a stock block pretty hard. I preach using a center weighted crank after seeing the results in my mega block, and in your case, It would help block life a lot. Go as light as you can on piston and rod weight, 7.10 rods with 2.20 rod journals, or smaller if the crank is a real stout piece. I have run 2.1 rods, was told by Crower they would be strong enough with their crank for my app. See if piston and ring makers think using .043 rings top and second with standard oil rings will work. The .043 setup is worth a lot of friction reduction, and makes great power if oil control is good. I run a vacuum pump and alky with mine, so I am not sure about a pump gas deal. The cam is pretty much up to what you want for torque range. David Vizzards book "HOW TO BUILD HORSEPOWER" has a great section on cam selection, and points to a farely narrow LSA for your app, (108 or less, depending on a lot of things) based on valve size and cubes. The book is a good read. Porting those heads is going to be worth a lot. How high are you willing to rev this motor, and the lowest point you are willing to get decent torque?
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Time to build a pump gas motor...543" ... Indy's...
[Re: gregsdart]
#1550777
12/21/13 01:45 AM
12/21/13 01:45 AM
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Joined: Sep 2006
Posts: 3,749
Chowchilla,ca
Chassisman
OP
master
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OP
master
Joined: Sep 2006
Posts: 3,749
Chowchilla,ca
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Quote:
440-1 heads are going to push a stock block pretty hard. I preach using a center weighted crank after seeing the results in my mega block, and in your case, It would help block life a lot. Go as light as you can on piston and rod weight, 7.10 rods with 2.20 rod journals, or smaller if the crank is a real stout piece. I have run 2.1 rods, was told by Crower they would be strong enough with their crank for my app. See if piston and ring makers think using .043 rings top and second with standard oil rings will work. The .043 setup is worth a lot of friction reduction, and makes great power if oil control is good. I run a vacuum pump and alky with mine, so I am not sure about a pump gas deal. The cam is pretty much up to what you want for torque range. David Vizzards book "HOW TO BUILD HORSEPOWER" has a great section on cam selection, and points to a farely narrow LSA for your app, (108 or less, depending on a lot of things) based on valve size and cubes. The book is a good read. Porting those heads is going to be worth a lot. How high are you willing to rev this motor, and the lowest point you are willing to get decent torque?
4000 is where I'd like the TQ to come in... take it to 6200-6500 RPM... I'm gonna get the -1's CNC ported ..2.19 vales..looking around 2200 on the bob weight.. I'm not chasing low numbers... 9.50's would be great... but 10.40's would work too... I just want a low maint ....fun car to run. Plus my boy is now 15 so he'll be in it soon if we don't build his altered/FC soon...
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Re: Time to build a pump gas motor...543" ... Indy's...
[Re: Chassisman]
#1550781
12/21/13 04:44 AM
12/21/13 04:44 AM
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Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
cudadoug
master
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master
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
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Quote:
Quote:
Quote:
Been a while since I've asked a question or needed input on here.
I have a set of -1's... a 1971 block that will go 55 over (already 30 over).A 1050 Dom ...Indy intake with 2" 4150/4500 adapter.....
Mainly looking for cam input ...and any tricks to make it more durable.
Ready to get started soon...THANKS !!!
Pump gas? Roller or FT cam? Desired HP level?
....glad you chimed in... My boys GF lives in Temecula... we've been running at Barona with his junior... I'm gonna need your input and most likely some machine work... but a buddy keeps trying to get to take it to Rettig Bros....I'm not sold on them though.
Lets say FT to keep the cost down....and yes...pump gas...650 ish on the HP
Thanks
Rettigs?? NOOOOOOO! UNLESS Wann is doing the work himself. Want a really good central valley shop? Valley Balancing in Ceres.
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Re: Time to build a pump gas motor...543" ... Indy's...
[Re: cudadoug]
#1550782
12/21/13 05:03 AM
12/21/13 05:03 AM
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Joined: Sep 2006
Posts: 3,749
Chowchilla,ca
Chassisman
OP
master
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OP
master
Joined: Sep 2006
Posts: 3,749
Chowchilla,ca
|
Quote:
Quote:
Quote:
Quote:
Been a while since I've asked a question or needed input on here.
I have a set of -1's... a 1971 block that will go 55 over (already 30 over).A 1050 Dom ...Indy intake with 2" 4150/4500 adapter.....
Mainly looking for cam input ...and any tricks to make it more durable.
Ready to get started soon...THANKS !!!
Pump gas? Roller or FT cam? Desired HP level?
....glad you chimed in... My boys GF lives in Temecula... we've been running at Barona with his junior... I'm gonna need your input and most likely some machine work... but a buddy keeps trying to get to take it to Rettig Bros....I'm not sold on them though.
Lets say FT to keep the cost down....and yes...pump gas...650 ish on the HP
Thanks
Rettigs?? NOOOOOOO! UNLESS Wann is doing the work himself. Want a really good central valley shop? Valley Balancing in Ceres.
Ken Boyd has done a few motors for me...Larry Gilley assembled my last one...ran great til I messed it up.
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Re: Time to build a pump gas motor...543" ... Indy's...
[Re: Chassisman]
#1550783
12/21/13 10:58 AM
12/21/13 10:58 AM
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Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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4000 is where I'd like the TQ to come in... take it to 6200-6500 RPM... I'm gonna get the -1's CNC ported ..2.19 vales..looking around 2200 on the bob weight.. I'm not chasing low numbers... 9.50's would be great... but 10.40's would work too... I just want a low maint ....fun car to run. Plus my boy is now 15 so he'll be in it soon if we don't build his altered/FC soon...
If your goals are moderate, (600 hp,6,000 max rpm) you can skip the porting other than bowl work, run a cam with moderate duration (270 @ .050 or less) shift it at 5600 to 5800 and run high nines all day long if the weight is down to 3,000 or less. A 543 cube motor with a big hydraulic cam would work great here, very low maintenance. I had a 475 cube rb with this basic combo, 6,000 rpm shifts, ran 10.10 at 3180.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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My old low deck stroker with a set of Eddy RPM non M.W. ports and a single, Team G 4500 flange intake with a Holley 9375 non HP 1050 made over 650 HP up here at 2500 Ft + elevation 
in Klamath Falls ,OR which is above 4300 FT 
I shifted it at or slightly above 7100 RPM, that is where it seem to be happy at no matter which intake or heads 