Hypereutectic vs. Forged

swtstang · 04-29-2001, 11:49 PM

Forged is better right? WHY?

BowTie Eater 5 Liter · 04-30-2001, 12:05 AM

yes, forged better, but Hypereutectic is lighter.

------------------
1988 Mustang GT, T-5
3.08's, No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe, K&N Air Filter (Stock Air Box), Removed air silendcerMy Stang
My Site (Not Done Yet)

Unit 5302 · 04-30-2001, 12:28 AM

Forged pistons are more dense, which is why they are stronger.

The Hypereutic Cast pistons are basically just poured into a mold, so since they don't undergo the forging process they are less dense and therefore lighter.

Hyper pistons allow for better oil control, which helps emissions, and that's why Ford went to them over the forged units.

Mean50 · 04-30-2001, 10:34 AM

I have hyper pistons and they have lasted through at least 10 bottles of nitrous with no problems.

------------------
89 LX Coupe
306, 10:1 compression, Holley Heads, Intake, and Cam package, 70 mm Throttle body and Mass Air, 30 lb injectors, 255 lph fuel pump, 1 5/8" full length headers, Flowmaster 2 1/2" American Thunder Cat back system, Centerforce dual friction clutch, 4.10 gears
50-175 hp Nitrous Works kit, 5" Auto Meter Shift Light

swtstang · 04-30-2001, 11:13 AM

WHAT DO YOU RECOMMEND I USE ON MY REBUILD? THANKS FOR ALL THE HELP GUYS.

Mustangbelle306 · 04-30-2001, 01:21 PM

I'm using forged because I NEED durablity..yay for TRW heavy forged!

------------------
Elisha (Mustangbelle)
1994 GT: Cartech intake,4.10s, full exhaust, and pulleys.
Sold the 1986 LX sedan

http://www.geocities.com/mustangbelle_306
AOL name: GT306Chick

juiceman · 04-30-2001, 09:38 PM

what you use is totally dependant on what your intended use for the motor is. hyperutectics are better for most rebuilds and performance and are stronger than cast pistons. tey are lighter therefore creating less rotational mass and of coarse less stress on parts and allow higher revs easier. also you can run tighter clearance which gives better stability to the piston and better oil control. but if you intend to make serious hp with a blower or alot of juice then a good forged piston would be better. but get a quality set, not trw's which are slugs. forged are stronger, not better. a good set of either type is equally as good when used in the right way.

FordMainiac · 02-10-2005, 06:02 PM

well my name for the hypereutectic is hyperexplosive becuase anytime you put a good number of horses on them they explode. If you dont want to spend alot of money better just save some extra money and buy the forged set.

mustangII460 · 02-10-2005, 08:33 PM

Plasma moly rings

04-29-2001, 11:49 PM	#1
swtstang Registered Member Join Date: Apr 2001 Location: stockton, ca usa Posts: 160	Hypereutectic vs. Forged Forged is better right? WHY?

02-10-2005, 06:02 PM	#8
FordMainiac Registered Member Join Date: Jan 2005 Posts: 8	Re: Hypereutectic vs. Forged well my name for the hypereutectic is hyperexplosive becuase anytime you put a good number of horses on them they explode. If you dont want to spend alot of money better just save some extra money and buy the forged set.

02-10-2005, 08:33 PM	#9
mustangII460 Factoy Five Roadster Join Date: May 2000 Location: Sevier Co,Tennessee Posts: 1,681	Re: Hypereutectic vs. Forged Plasma moly rings __________________ Frank

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Hypereutectic piston durability?	Scrapla	Windsor Power	10	06-18-2003 09:28 AM
How Can You Tell If Its Forged Also How to tell comp ratio???	vetteeatr	Windsor Power	0	11-08-2002 03:27 AM
Supercharged 351W. SCAT Forged everything setup. Engine build.	Fox Body	Windsor Power	7	10-24-2002 11:08 PM
hypereutectic pistons	mee_doo	Windsor Power	4	01-29-2002 09:37 PM
crankshafts: BILLET vs FORGED steel?	reddragon93	Windsor Power	1	02-23-2001 12:43 AM

04-30-2001, 12:05 AM	#2
BowTie Eater 5 Liter Registered Member Join Date: Nov 2000 Location: Maple Ridge B.C. Canada, The Best Place In The World Posts: 871	yes, forged better, but Hypereutectic is lighter. ------------------ 1988 Mustang GT, T-5 3.08's, No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe, K&N Air Filter (Stock Air Box), Removed air silendcerMy Stang My Site (Not Done Yet)

04-30-2001, 12:28 AM	#3
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Forged pistons are more dense, which is why they are stronger. The Hypereutic Cast pistons are basically just poured into a mold, so since they don't undergo the forging process they are less dense and therefore lighter. Hyper pistons allow for better oil control, which helps emissions, and that's why Ford went to them over the forged units.

04-30-2001, 10:34 AM	#4
Mean50 Registered Member Join Date: Jan 2001 Location: Virginia Posts: 118	I have hyper pistons and they have lasted through at least 10 bottles of nitrous with no problems. ------------------ 89 LX Coupe 306, 10:1 compression, Holley Heads, Intake, and Cam package, 70 mm Throttle body and Mass Air, 30 lb injectors, 255 lph fuel pump, 1 5/8" full length headers, Flowmaster 2 1/2" American Thunder Cat back system, Centerforce dual friction clutch, 4.10 gears 50-175 hp Nitrous Works kit, 5" Auto Meter Shift Light

04-30-2001, 11:13 AM	#5
swtstang Registered Member Join Date: Apr 2001 Location: stockton, ca usa Posts: 160	WHAT DO YOU RECOMMEND I USE ON MY REBUILD? THANKS FOR ALL THE HELP GUYS.

04-30-2001, 01:21 PM	#6
Mustangbelle306 Yay for Chickys Join Date: Feb 2001 Posts: 1,532	I'm using forged because I NEED durablity..yay for TRW heavy forged! ------------------ Elisha (Mustangbelle) 1994 GT: Cartech intake,4.10s, full exhaust, and pulleys. Sold the 1986 LX sedan http://www.geocities.com/mustangbelle_306 AOL name: GT306Chick

04-30-2001, 09:38 PM	#7
juiceman Registered Member Join Date: Jan 2001 Location: ny Posts: 197	what you use is totally dependant on what your intended use for the motor is. hyperutectics are better for most rebuilds and performance and are stronger than cast pistons. tey are lighter therefore creating less rotational mass and of coarse less stress on parts and allow higher revs easier. also you can run tighter clearance which gives better stability to the piston and better oil control. but if you intend to make serious hp with a blower or alot of juice then a good forged piston would be better. but get a quality set, not trw's which are slugs. forged are stronger, not better. a good set of either type is equally as good when used in the right way.