Cranked
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Sorry, DOUGMO It's a 6 bolt.
Forged Motor
- Thread starter Cranked
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Sorry, DOUGMO It's a 6 bolt.
Cranked
Donating Members
Tears... again. :lol:
Ive fitted JE 2618 pistons 0.0035" PTW, Arias 4032 0.0030" and Wiseco 2618 Armorglide coated pistons 0.0030" (although Wiseco specs had lower PTW in the 0.002X" range, I wanted to be safe and ran 0.0030").
All engines will not see NOS duties and not over 30psi boost.
All run Eagle rods.
All either 8.5-8.7:1 ratio.
All 0.0020" overbore.
All DO NOT have piston knock.
All with ARP bolts/studs and ACL Race bearings.
All with the balance shafts removed.
Throw in CP, SCAT pistons etc and any of them will be OK to use for your desired power output as long as the engine is built and tuned right for its intended purpose and fuel type.
Some engine builders still like to err on the side of caution especially when they know the enigne is going to see a lot of boost, tuning and even dabble with NOS and race fuels. Therefore they choose to use a low silica content piston as its more forgiving to detonation than a high silica content piston. The benefit of a high silica content piston is the fact that it can be run at tighter PTW clearances and better suited for daily driven cars. But in saying that, some race/competition cars would even still use tight PTW clearances for maximum compression because of their R&D, type of fuel, extensive tuning they undergo.
At the end of the day if 400hp atw maximum is your target then its not going to bother any of the pistons mentioned above as long as the engine was assembled right and your tuner knows what he is doing and is picking up the knocks.
For what you want a 9.0:1 ratio high silica piston would be the way to go, plus as always it goes without saying... [but I will in case you forgot].... get yourself a reputable tuner!!! :lol:
All engines will not see NOS duties and not over 30psi boost.
All run Eagle rods.
All either 8.5-8.7:1 ratio.
All 0.0020" overbore.
All DO NOT have piston knock.
All with ARP bolts/studs and ACL Race bearings.
All with the balance shafts removed.
Throw in CP, SCAT pistons etc and any of them will be OK to use for your desired power output as long as the engine is built and tuned right for its intended purpose and fuel type.
Some engine builders still like to err on the side of caution especially when they know the enigne is going to see a lot of boost, tuning and even dabble with NOS and race fuels. Therefore they choose to use a low silica content piston as its more forgiving to detonation than a high silica content piston. The benefit of a high silica content piston is the fact that it can be run at tighter PTW clearances and better suited for daily driven cars. But in saying that, some race/competition cars would even still use tight PTW clearances for maximum compression because of their R&D, type of fuel, extensive tuning they undergo.
At the end of the day if 400hp atw maximum is your target then its not going to bother any of the pistons mentioned above as long as the engine was assembled right and your tuner knows what he is doing and is picking up the knocks.
For what you want a 9.0:1 ratio high silica piston would be the way to go, plus as always it goes without saying... [but I will in case you forgot].... get yourself a reputable tuner!!! :lol:
