Estimated HP?

Av8tor · November 10th, 2010, 11:36 AM

Well ive managed to get a new motor that will be going in my 81 stang. I encountered a problem with the one that i had intended to put in, but managed to find a friend of a friend selling a long block that im going to go with. Just curious what you guys would estimate that it would put to the wheels. Its going to be going through a t5 with a centerforce DF clutch. So curious what you guys would think, and if id lose much switching the intake to a performer rpm air-gap. It is carbed and will be staying that way.

Block - 89 Block - Decked 0.05 in the hole, LineBored, Fully Studded with ARP
Crank - Scat 9000
Rods - Scat 4340
Pistons - Mahle Coated
Cam - Track Max 293/ 290,Lift .542/ .563
Heads - TFS Track Heat 170
Intake - Edelbrock Victor Jr
Compression - 10.8:1
Push Rods - TFS Hardened
Rockers c/w posilocks - Scorpion 1.6
ARP Studded block and heads
Double Roller Chain
Stud Girdle
Melling Oil Pump
ARP Pump Drive
SFI Balancer

Av8tor · November 10th, 2010, 06:31 PM

Anybody?

FastStang91Lx · November 10th, 2010, 06:32 PM

320-325 rwhp is my guess.

StangBanger302 · November 10th, 2010, 06:37 PM

Originally Posted by FastStang91Lx

320-325 rwhp is my guess.

^^^ Maybe even 330 with a tune.

horsepowerjunkie · November 10th, 2010, 07:02 PM

What cubic inch is the motor?

FastStang91Lx · November 10th, 2010, 07:38 PM

Originally Posted by horsepowerjunkie

What cubic inch is the motor?

Good call, I assumed 302/306 since it wasn't mentioned.

horsepowerjunkie · November 10th, 2010, 08:33 PM

Originally Posted by FastStang91Lx

Good call, I assumed 302/306 since it wasn't mentioned.

I guess when I saw that he bought a SCAT crank and rods with Mahle pistons it was probably a stroker of some kind!

FastStang91Lx · November 10th, 2010, 08:41 PM

Yeah, I figured he woulda mentioned it if he did it... unless he has a memory like me, lol

nolife · November 10th, 2010, 11:18 PM

I give around or maybe a little more than the 320ish because of the higher compression depeding on how fast it is spinning. I could be wrong.

Av8tor · November 11th, 2010, 11:21 AM

Apparently i do have a memory like you, its a 331. Everything has gone ahead for me picking it up so it will be sitting in my garage within a week or 2. Im still just tossing about the idea of swapping the vic jr 4bbl intake thats on it for a performer rpm air-gap 4bbl intake.

StangBanger302 · November 11th, 2010, 11:29 AM

A 331 should be making about 350RWHP with that setup then. With the right supporting mods (gears,transmission etc.) you could run lower 11's.

horsepowerjunkie · November 11th, 2010, 12:19 PM

Originally Posted by StangBanger302

A 331 should be making about 350RWHP with that setup then. With the right supporting mods (gears,transmission etc.) you could run lower 11's.

^What he said!^

November 10th, 2010, 11:36 AM	#1
Av8tor Regular Join Date: Apr 2010 Posts: 183 iTrader: 0 reviews	Estimated HP? Well ive managed to get a new motor that will be going in my 81 stang. I encountered a problem with the one that i had intended to put in, but managed to find a friend of a friend selling a long block that im going to go with. Just curious what you guys would estimate that it would put to the wheels. Its going to be going through a t5 with a centerforce DF clutch. So curious what you guys would think, and if id lose much switching the intake to a performer rpm air-gap. It is carbed and will be staying that way. Block - 89 Block - Decked 0.05 in the hole, LineBored, Fully Studded with ARP Crank - Scat 9000 Rods - Scat 4340 Pistons - Mahle Coated Cam - Track Max 293/ 290,Lift .542/ .563 Heads - TFS Track Heat 170 Intake - Edelbrock Victor Jr Compression - 10.8:1 Push Rods - TFS Hardened Rockers c/w posilocks - Scorpion 1.6 ARP Studded block and heads Double Roller Chain Stud Girdle Melling Oil Pump ARP Pump Drive SFI Balancer

November 10th, 2010, 06:32 PM	#3
FastStang91Lx I Post Entirely Way Too Much 1991 Mustang LX 5.0 Join Date: Jan 2010 Location: Minnesota Posts: 5,572 iTrader: 2 reviews	320-325 rwhp is my guess. __________________ Point made in less than a few hours with minimal response. http://www.moddedmustangs.com/forums...ml#post4465184

November 10th, 2010, 07:02 PM	#5
horsepowerjunkie Hardcore Enthusiast 1989 Black LX---Turbo Join Date: Jun 2010 Location: just outside Minot, ND Posts: 1,153 iTrader: 0 reviews	What cubic inch is the motor? __________________ 89 LX Black, Boss 331, C4,T76BB, FAST EFI 82 Capri RS,89 5.0 HO,Comp XE266,TW 170,T5,etc. 73 Dart Sport 340, 410ci Bracket Brawler 72 Demon 340 4-speed 1 of 1667 01 Ram Quad Cab 03 Grizzley 660

November 10th, 2010, 08:41 PM	#8
FastStang91Lx I Post Entirely Way Too Much 1991 Mustang LX 5.0 Join Date: Jan 2010 Location: Minnesota Posts: 5,572 iTrader: 2 reviews	Yeah, I figured he woulda mentioned it if he did it... unless he has a memory like me, lol __________________ Point made in less than a few hours with minimal response. http://www.moddedmustangs.com/forums...ml#post4465184

November 10th, 2010, 11:18 PM	#9
nolife MM Fanatic 91GT, 88GT, 02GT Join Date: Dec 2006 Posts: 3,057 Blog Entries: 3 iTrader: 0 reviews	I give around or maybe a little more than the 320ish because of the higher compression depeding on how fast it is spinning. I could be wrong. __________________

November 10th, 2010, 06:31 PM	#2
Av8tor Regular Join Date: Apr 2010 Posts: 183 iTrader: 0 reviews	Anybody?

November 11th, 2010, 11:21 AM	#10
Av8tor Regular Join Date: Apr 2010 Posts: 183 iTrader: 0 reviews	Apparently i do have a memory like you, its a 331. Everything has gone ahead for me picking it up so it will be sitting in my garage within a week or 2. Im still just tossing about the idea of swapping the vic jr 4bbl intake thats on it for a performer rpm air-gap 4bbl intake.

November 11th, 2010, 11:29 AM	#11
StangBanger302 Hardcore Enthusiast 1992 Mustang LX 13.0 @ 105 Join Date: Jun 2010 Location: New York Posts: 2,230 iTrader: 0 reviews	A 331 should be making about 350RWHP with that setup then. With the right supporting mods (gears,transmission etc.) you could run lower 11's. __________________ As I lay rubber down the street I pray for traction I can keep But if I spin, and begin to slide Please dear God, protect my ride

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