DynoSim combinations

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Line 44:

*Static Compression Ratio: 9.6:1

*Dynamic Compression Ratio: 8.4:1

−

*~~Squish~~: 0.035" to 0.045". Zero piston deck height with 0.035" to 0.045" head gasket or 0.010" to 0.020" piston deck height with *Victor Reinz #5746 head gasket that compresses to 0.025".

+

*Quench: 0.035" to 0.045". Zero piston deck height with 0.035" to 0.045" head gasket or 0.010" to 0.020" piston deck height with Victor Reinz #5746 head gasket that compresses to 0.025".

====Results====

Line 59:

*5500 453 433

*6000 450 394

−

Stock converter and stock rear gear will work, but would be more fun with a converter that stalls at 2000 to 2200 rpm's and a 3.73 gear.

+

Stock converter and stock rear gear will work, but would be more fun with a converter that stalls at 2000 to 2200 rpm and a 3.73 rear gear.

−

===383 Gen I street motor. 485 hp/496 ft-lbs torque===

+

===383 Gen I street motor 485 hp/496 ft-lbs torque===

−

~~OK, staying~~ with ~~the~~ RHS ~~heads~~, ~~but~~ using the Pro Action ~~180's~~ and reducing the advertised flow by 5% to get closer to real, flow used for this build on a 383 will be as follows:

+

Staying with RHS, using the Pro Action 180cc heads and reducing the advertised flow by 5% to get closer to real world results, the flow used for this build on a 383 will be as follows:

−

:'''~~LIFT INT EXH~~

+

'''Lift Int. Exh.'''

−

*.100 70 55

+

.100 70 55

−

*.200 143 96

+

.200 143 96

−

*.300 197 149

+

.300 197 149

−

*.400 231 168

+

.400 231 168

−

*.500 245 177

+

.500 245 177

−

*.600 250 181

+

.600 250 181

−

*.700 257 185

+

.700 257 185

−

*~~We'll bore~~ a 350 block ~~+0.030" and use~~ a 3.750" stroke crank and 5.7" rods. Scat makes a cast ~~STEEL~~ crank and capscrew I-beam rods *that will work here. ~~If you want to use a 4.040" or 4.060" bore, that's OK too. 4.060" will make a 388 motor, but to prevent *problems, have~~ your machine shop "beep" the cylinder walls with a sonic checker for thickness. Smokey Yunick used to recommend *minimum 0.135" ~~walls~~ after boring and honing.

+

*This uses a 350 block bored to size, a 3.750" stroke crank and 5.7" rods. Scat makes a cast crank and capscrew I-beam rods that will work here. Have your machine shop "beep" the cylinder walls with a sonic checker for thickness if the bore will need to go bigger than 0.030" over. Smokey Yunick used to recommend a minimum cylinder wall thickness of 0.135" after boring and honing.

*Heads: Racing Head Service Pro Action 180, 72cc chambers, 2.02" intake, 1.60" exhaust.

−

*Pistons: Keith Black hypereutectic #KB134, 7cc flat-top, 5/64/5/64/3/16 rings, 1.433 compression height.

+

*Pistons: Keith Black hypereutectic #KB134, 7cc flat-top, 5/64/5/64/3/16 rings, 1.433" compression height.

*Intake manifold: Dual-plane, high-rise such as the Edelbrock RPM, Weiand Stealth or Professional Products Typhoon.

*Carburetor: 850 cfm vacuum secondary.

*Headers: 1-3/4" primaries, long-tube, equal-length. Install "X" pipe between collectors and mufflers. Run 2-1/2" to 2-3/4" pipe to the rear through mufflers of your choice.

−

*Camshaft: [http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=79&sb=0 Comp cams 12-212-2 hydraulic flat tappet], installed 2 degrees retarded.

+

*Camshaft: [http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=79&sb=0 Comp cams 12-212-2 Comp Cams hydraulic flat tappet], installed 2 degrees retarded.

*Rocker arms: 1.6, lift at valve 0.512".

*Static compression ratio: 10:1.

Line 85:

====Results====

−

:'''RPM HP TQ'''

+

'''RPM HP TQ'''

*2000 148 389

*2500 188 395

Line 100:

====Results====

−

:'''RPM HP TQ'''

+

'''RPM HP TQ'''

*2000 145 382

*2500 185 390

Line 115:

Flat tappet hydraulic cam, stock rail rockers, some head work for better springs.

−

In this build, a tight budget is important. In that vein, use stock self aligning (SA) rockers. Lift is under a half inch, so the SA rockers ~~would~~ be OK. Check to see if using a -0.050" lock will be needed to insure the valve tip sticks up far enough above the retainer so that the retainer top surface doesn't get loaded by the side rails of the rail rockers. More on checking clearances, etc. under '''Resources''', below.

+

In this build, a tight budget is important. In that vein, use stock self aligning (SA) rockers. Lift is under a half inch, so the SA rockers should be OK. Check to see if using a -0.050" lock will be needed to insure the valve tip sticks up far enough above the retainer so that the retainer top surface doesn't get loaded by the side rails of the rail rockers. More on checking clearances, etc. under '''Resources''', below.

−

*Bore the block 0.030", use ~~these or other 12cc pistons w/5.7 rods:~~ [http://www.kb-silvolite.com/test/kb_car/performance.php?action=details&P_id=155].

+

*Bore the block 0.030", use [http://www.kb-silvolite.com/test/kb_car/performance.php?action=details&P_id=155 '''these'''] or similar 12cc dished pistons w/5.7 rods.

*Makes 9.6:1 static compression ratio. Cut block decks to zero and use a 0.040" head gasket.

−

*Use XE274H Comp cam (~~Cam card:~~ [http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=87&sb=0]), installed at straight up.

+

*Use XE274H Comp cam ([http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=87&sb=0 cam card]), installed at straight up.

−

*Comp 981 valve springs/ 750-16 retainers/ 630-16 keepers and stock 1.5 rail rockers. 1.250" springs should be OK because the cam is a moderate grind, hydraulic flat tappet.

+

*Comp p/n 981 valve springs, p/n 750-16 retainers, p/n 630-16 keepers and stock 1.5 rail rockers. 1.250" springs should be OK because the cam is a moderate grind, hydraulic flat tappet.

−

*~~Narrow~~ the ~~O.D.~~ of the ~~guides~~ to less than the I.D. of the damper spring and cut for PC-type positive seals.

+

*Machine the OD of the guide bosses to less than the I.D. of the damper spring and cut for PC-type positive seals.

−

*Cut top of guide for 0.550" play from bottom of retainer to top of *guide seal. Pin the pressed-in rocker studs with ~~this kit:~~ [http://www.summitracing.com/parts/MRG-806G?autofilter=1&part=MRG-806G&N=700+4294746236+115&autoview=sku].

+

*Cut top of guide for 0.550" play from bottom of retainer to top of guide seal. Pin the pressed-in rocker studs with [http://www.summitracing.com/parts/MRG-806G?autofilter=1&part=MRG-806G&N=700+4294746236+115&autoview=sku this kit].

−

*Performance Distributors ~~12720 HEI,~~ custom curved: [http://www.performancedistributors.com/gmssdui.htm]

+

*Performance Distributors custom curved HEI distributor, [http://www.performancedistributors.com/gmssdui.htm p/n 12720], or [http://www.crankshaftcoalition.com/wiki/Hot_rodding_the_HEI_distributor '''build your own'''] from a GM HEI.

*Edelbrock RPM Vortec intake mounting a 750 vacuum secondary carb of your choice. Edelbrock, Rochester 5 psi max at the inlet, Holley *6 psi max at the inlet.

*Performer RPM Vortec w/natural finish: #7116, w/EnduraShine finish: #71164, w/polished finish: #71161 '''-OR-'''

Line 318:

*[[Valve train geometry]]

*[[Valve train points to check]]

−

+

*[[Quench]]

[[Category:Engine]]

DynoSim combinations

Revision as of 14:09, 19 December 2012

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@@ Line 44: / Line 44: @@
 *Static Compression Ratio: 9.6:1
 *Dynamic Compression Ratio: 8.4:1
-*Squish: 0.035" to 0.045". Zero piston deck height with 0.035" to 0.045" head gasket or 0.010" to 0.020" piston deck height with *Victor Reinz #5746 head gasket that compresses to 0.025".
+*Quench: 0.035" to 0.045". Zero piston deck height with 0.035" to 0.045" head gasket or 0.010" to 0.020" piston deck height with Victor Reinz #5746 head gasket that compresses to 0.025".
 ====Results====
@@ Line 59: / Line 59: @@
 *5500 453 433
 *6000 450 394
-Stock converter and stock rear gear will work, but would be more fun with a converter that stalls at 2000 to 2200 rpm's and a 3.73 gear.
+Stock converter and stock rear gear will work, but would be more fun with a converter that stalls at 2000 to 2200 rpm and a 3.73 rear gear.
-===383 Gen I street motor. 485 hp/496 ft-lbs torque===
+===383 Gen I street motor 485 hp/496 ft-lbs torque===
-OK, staying with the RHS heads, but using the Pro Action 180's and reducing the advertised flow by 5% to get closer to real, flow used for this build on a 383 will be as follows:
+Staying with RHS, using the Pro Action 180cc heads and reducing the advertised flow by 5% to get closer to real world results, the flow used for this build on a 383 will be as follows:
-:'''LIFT INT EXH
+'''Lift Int. Exh.'''<br>
-*.100 70 55
+.100 70 55<br>
-*.200 143 96
+.200 143 96<br>
-*.300 197 149
+.300 197 149<br>
-*.400 231 168
+.400 231 168<br>
-*.500 245 177
+.500 245 177<br>
-*.600 250 181
+.600 250 181<br>
-*.700 257 185
+.700 257 185<br>
-*We'll bore a 350 block +0.030" and use a 3.750" stroke crank and 5.7" rods. Scat makes a cast STEEL crank and capscrew I-beam rods *that will work here. If you want to use a 4.040" or 4.060" bore, that's OK too. 4.060" will make a 388 motor, but to prevent *problems, have your machine shop "beep" the cylinder walls with a sonic checker for thickness. Smokey Yunick used to recommend *minimum 0.135" walls after boring and honing.
+*This uses a 350 block bored to size, a 3.750" stroke crank and 5.7" rods. Scat makes a cast crank and capscrew I-beam rods that will work here. Have your machine shop "beep" the cylinder walls with a sonic checker for thickness if the bore will need to go bigger than 0.030" over. Smokey Yunick used to recommend a minimum cylinder wall thickness of 0.135" after boring and honing.
 *Heads: Racing Head Service Pro Action 180, 72cc chambers, 2.02" intake, 1.60" exhaust.
-*Pistons: Keith Black hypereutectic #KB134, 7cc flat-top, 5/64/5/64/3/16 rings, 1.433 compression height.
+*Pistons: Keith Black hypereutectic #KB134, 7cc flat-top, 5/64/5/64/3/16 rings, 1.433" compression height.
 *Intake manifold: Dual-plane, high-rise such as the Edelbrock RPM, Weiand Stealth or Professional Products Typhoon.
 *Carburetor: 850 cfm vacuum secondary.
 *Headers: 1-3/4" primaries, long-tube, equal-length. Install "X" pipe between collectors and mufflers. Run 2-1/2" to 2-3/4" pipe to the rear through mufflers of your choice.
-*Camshaft: [http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=79&sb=0 Comp cams 12-212-2 hydraulic flat tappet], installed 2 degrees retarded.
+*Camshaft: [http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=79&sb=0 Comp cams 12-212-2 Comp Cams hydraulic flat tappet], installed 2 degrees retarded.
 *Rocker arms: 1.6, lift at valve 0.512".
 *Static compression ratio: 10:1.
@@ Line 85: / Line 85: @@
 ====Results====
-:'''RPM HP TQ'''
+'''RPM HP TQ'''
 *2000 148 389
 *2500 188 395
@@ Line 100: / Line 100: @@
 ====Results====
-:'''RPM HP TQ'''
+'''RPM HP TQ'''
 *2000 145 382
 *2500 185 390
@@ Line 115: / Line 115: @@
 Flat tappet hydraulic cam, stock rail rockers, some head work for better springs.
-In this build, a tight budget is important. In that vein, use stock self aligning (SA) rockers. Lift is under a half inch, so the SA rockers would be OK. Check to see if using a -0.050" lock will be needed to insure the valve tip sticks up far enough above the retainer so that the retainer top surface doesn't get loaded by the side rails of the rail rockers. More on checking clearances, etc. under '''Resources''', below.
+In this build, a tight budget is important. In that vein, use stock self aligning (SA) rockers. Lift is under a half inch, so the SA rockers should be OK. Check to see if using a -0.050" lock will be needed to insure the valve tip sticks up far enough above the retainer so that the retainer top surface doesn't get loaded by the side rails of the rail rockers. More on checking clearances, etc. under '''Resources''', below.
-*Bore the block 0.030", use these or other 12cc pistons w/5.7 rods: [http://www.kb-silvolite.com/test/kb_car/performance.php?action=details&P_id=155].
+*Bore the block 0.030", use [http://www.kb-silvolite.com/test/kb_car/performance.php?action=details&P_id=155 '''these'''] or similar 12cc dished pistons w/5.7 rods.
 *Makes 9.6:1 static compression ratio. Cut block decks to zero and use a 0.040" head gasket.
-*Use XE274H Comp cam (Cam card: [http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=87&sb=0]), installed at straight up.
+*Use XE274H Comp cam ([http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=87&sb=0 cam card]), installed at straight up.
-*Comp 981 valve springs/ 750-16 retainers/ 630-16 keepers and stock 1.5 rail rockers. 1.250" springs should be OK because the cam is a moderate grind, hydraulic flat tappet.
+*Comp p/n 981 valve springs, p/n 750-16 retainers, p/n 630-16 keepers and stock 1.5 rail rockers. 1.250" springs should be OK because the cam is a moderate grind, hydraulic flat tappet.
-*Narrow the O.D. of the guides to less than the I.D. of the damper spring and cut for PC-type positive seals.
+*Machine the OD of the guide bosses to less than the I.D. of the damper spring and cut for PC-type positive seals.
-*Cut top of guide for 0.550" play from bottom of retainer to top of *guide seal. Pin the pressed-in rocker studs with this kit: [http://www.summitracing.com/parts/MRG-806G?autofilter=1&part=MRG-806G&N=700+4294746236+115&autoview=sku].
+*Cut top of guide for 0.550" play from bottom of retainer to top of guide seal. Pin the pressed-in rocker studs with [http://www.summitracing.com/parts/MRG-806G?autofilter=1&part=MRG-806G&N=700+4294746236+115&autoview=sku this kit].
-*Performance Distributors 12720 HEI, custom curved: [http://www.performancedistributors.com/gmssdui.htm]
+*Performance Distributors custom curved HEI distributor,  [http://www.performancedistributors.com/gmssdui.htm p/n 12720], or [http://www.crankshaftcoalition.com/wiki/Hot_rodding_the_HEI_distributor '''build your own'''] from a GM HEI.
 *Edelbrock RPM Vortec intake mounting a 750 vacuum secondary carb of your choice. Edelbrock, Rochester 5 psi max at the inlet, Holley *6 psi max at the inlet.
 *Performer RPM Vortec w/natural finish: #7116, w/EnduraShine finish: #71164, w/polished finish: #71161 '''-OR-'''
@@ Line 318: / Line 318: @@
 *[[Valve train geometry]]
 *[[Valve train points to check]]
+*[[Quench]]
 [[Category:Engine]]