Who does a good job porting DART 225's ?
08-13-2007, 11:38 PM
#1
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Who does a good job porting DART 225's ? Looking towards the future, I may want to send a set of Dart 225's out to get ported.
So who has these heads figured out?
When I bought them (2 sets) when they first came out, some porters ruined them trying to get big numbers....
Anyone know the latest?
Thx
rjw
So who has these heads figured out?
When I bought them (2 sets) when they first came out, some porters ruined them trying to get big numbers....
Anyone know the latest?
Thx
rjw
08-14-2007, 09:53 AM
#2
Bo White does beautiful work and his prices are good.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
08-14-2007, 11:52 AM
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Depending on the cubic inch of the motor, TEA has some large intake runner CNC'd heads. http://www.totalengineairflow.com/pr...mhead/dartls1/
08-14-2007, 12:30 PM
#5
Originally Posted by 1997bird
Depending on the cubic inch of the motor, TEA has some large intake runner CNC'd heads. http://www.totalengineairflow.com/pr...mhead/dartls1/
08-14-2007, 01:00 PM
#6
I got lucky and Dart ported mine. John told me that mine were really close to what the final CNC version would look like. You may want to give them a call and see if they ever got the program lined out. Here are the flow numbers from the flowsheets supplied by Dart comparing my hand ported heads to the PRC stage 2 ported heads I swapped them out for due to unbelievable oil consumption issues.
PRC ported Stage 2 Darts
Intake...........Corr CFM.......%Exh/Int
.200............146.7
.300............210.6
.400............267.3
.500............302.1
.600............310.3
.700............308.1
Exhaust
.200............103.3............70.4
.300............143.7............68.2
.400............182.2............68.2
.500............207.1............68.5
.600............223.0............71.9
.700............232.3............75.4
Darts with cleanup work performed at Dart (not sure if 205 or 225 ports)
Intake...........Corr CFM.......%Exh/Int
.200............149.3
.300............205.1
.400............261.5
.500............293.2
.600............319.5
.700............334.0
Exhaust
.200............111.7............74.8
.300............153.3............74.7
.400............190.3............72.8
.500............218.0............74.3
.600............228.8............72.5
.700............235.7............70.6
All flow work was performed on a 4 inch bore with radiused inlets and no exhaust port adapter. I don't have flow numbers on what the box stock Darts flow, but I am sure someone on here has flowed a set. If not, call John over at Dart and I am sure he can get you some hard data.
Galen
PRC ported Stage 2 Darts
Intake...........Corr CFM.......%Exh/Int
.200............146.7
.300............210.6
.400............267.3
.500............302.1
.600............310.3
.700............308.1
Exhaust
.200............103.3............70.4
.300............143.7............68.2
.400............182.2............68.2
.500............207.1............68.5
.600............223.0............71.9
.700............232.3............75.4
Darts with cleanup work performed at Dart (not sure if 205 or 225 ports)
Intake...........Corr CFM.......%Exh/Int
.200............149.3
.300............205.1
.400............261.5
.500............293.2
.600............319.5
.700............334.0
Exhaust
.200............111.7............74.8
.300............153.3............74.7
.400............190.3............72.8
.500............218.0............74.3
.600............228.8............72.5
.700............235.7............70.6
All flow work was performed on a 4 inch bore with radiused inlets and no exhaust port adapter. I don't have flow numbers on what the box stock Darts flow, but I am sure someone on here has flowed a set. If not, call John over at Dart and I am sure he can get you some hard data.
Galen
