Plenum and 75mm TB

ModMustang97GT · August 13th, 2007, 11:28 AM

What is the HP gain I will get from puting on a new plenum and 75mm TB? I'm trying to find out really the gain from a plenum since I'll be getting the TB either way.

Timm10221 · August 13th, 2007, 11:31 AM

I always heard around 15 to 20... but thats what they advertise... i dont know dyno results...

MustangMatt96GT · August 13th, 2007, 11:32 AM

You will feel better trottle response, but horsepower gains is minimal unless you have a supercharger or turbo, or heads and cams that need the extra air! AND ACCUFAB FTW!!

ModMustang97GT · August 13th, 2007, 01:05 PM

What about 70mm vs. 75mm? I plan to cam and port it. I just want to know if the 75 TB is worth it?

HMUSN · August 13th, 2007, 01:06 PM

with a port and cam I would get the 75..

and +1 on ACCUFAB

ModMustang97GT · August 13th, 2007, 01:09 PM

Plenum and TB or TB and Trickflow intake? That is the overall question. Trickflow said they got 20hp on a stock GT, but I want to know if that is the same gain I'd get from a plenum and TB.

Timm10221 · August 13th, 2007, 01:11 PM

Accufab +2

HMUSN · August 13th, 2007, 01:12 PM

well to be honest to get that kind of power out of an intake manifold on a 4.6 your going to need p/p heads... the trickflow manifold starts making good power way up in the rmps and really wouldn't benifite you on stock heads.

I would go with the plenum and tb for now.

ModMustang97GT · August 13th, 2007, 01:17 PM

SO I would get more gains from the TB and plenum than the trickflow? and when I get the P&P, will the Trickflow be better? I would think it would be.

HMUSN · August 13th, 2007, 01:18 PM

if you get the p/p I would get the trickflow.

but right now the plenum and tb will give you more gains

August 13th, 2007, 11:28 AM	#1
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	Plenum and 75mm TB What is the HP gain I will get from puting on a new plenum and 75mm TB? I'm trying to find out really the gain from a plenum since I'll be getting the TB either way.

August 13th, 2007, 11:32 AM	#3
MustangMatt96GT Proud American 1996 Mustang GT Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,689 iTrader: 3 reviews	You will feel better trottle response, but horsepower gains is minimal unless you have a supercharger or turbo, or heads and cams that need the extra air! AND ACCUFAB FTW!! __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions 25.3 SFI Chassis Build Never Lift Racecars

August 13th, 2007, 01:06 PM	#5
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	with a port and cam I would get the 75.. and +1 on ACCUFAB __________________

August 13th, 2007, 01:12 PM	#8
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	well to be honest to get that kind of power out of an intake manifold on a 4.6 your going to need p/p heads... the trickflow manifold starts making good power way up in the rmps and really wouldn't benifite you on stock heads. I would go with the plenum and tb for now. __________________

August 13th, 2007, 01:18 PM	#10
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	if you get the p/p I would get the trickflow. but right now the plenum and tb will give you more gains __________________

August 13th, 2007, 01:05 PM	#4
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	What about 70mm vs. 75mm? I plan to cam and port it. I just want to know if the 75 TB is worth it?

August 13th, 2007, 01:09 PM	#6
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	Plenum and TB or TB and Trickflow intake? That is the overall question. Trickflow said they got 20hp on a stock GT, but I want to know if that is the same gain I'd get from a plenum and TB.

August 13th, 2007, 01:17 PM	#9
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	SO I would get more gains from the TB and plenum than the trickflow? and when I get the P&P, will the Trickflow be better? I would think it would be.

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