PERFORMER RPM OR GT 40

5ohCOUPE · 09-22-2001, 07:37 PM

I HAVE A GT 40 INTAKE WITH PORTED LOWER. I WAS WONDERING IF A PERFORMER RPM WOULD BE A BETTER INTAKE. I HAVE HEARD THAT THE PERFORMER RPM FLOWS BETTER THAN A STOCK GT 40 BUT MY GT 40 IS PORTED. IM THINKING THAT I SHOULD JUST STAY WITH THE GT 40.

Unit 5302 · 09-23-2001, 01:06 PM

Stick with the GT-40. It's a good flowing intake that keeps your lower rpm power up as well.

The performer may flow a little better than a lower ported GT-40, but not enough to worry about, you wouldn't want the performer if you were making more hp than the GT-40 could support anyway as there are better intakes than the Edelbrock out there.

John · 09-23-2001, 04:24 PM

There are plenty of good intakes out there. What have you done to warrant an intake swap? A stock gt40 is good to about 400-425 HP, yours ported is maybe good to 450. Thats alot of hp for street driven rides. I recently installed a cobra and cam on my steed, I ported the lower and heads myself and have no probs w/ flow, @ least that I know of. I've never dynoed my ride, but to get the correct air fuel ratio it is a good idea. I personally would leave well enough alone. John

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89 Notch: ASP Pullies,
K&N Air,Transgo shiftkit,Trans. cooler,FMS 3 core , FMS 4:10's, 1.5" cowl, cold air kit, hooker shorties(jet hot coated), O/R H-Pipe, ASP solid mounts, Energy Sus. Trans. Mnt. BBK 70mm TB, MSD 6al, Dual elec. fans, 5.0 Firepower Kit, Scorpion 1.6 RR's, Flowmasters, 73 mm MAF, cobra intake and crower #512 cam,

5ohCOUPE · 09-23-2001, 09:22 PM

WELL I WAS THINKING THAT I COULD GET A LITTLE MORE OUT OF IT ON BOTTLE WITH THE RPM BUT I THINK IT WONT MAKE THAT MUCH DIFFERANCE. I WILL JUST STAY WITH THE GT 40.
I THINK MY CAR IS DOING PRETTY GOOD ON THE BOTTLE. 11.51 @123. I DIDNT THINK IT WOULD DO THAT WITH THE MODS I HAVE.

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91 LX COUPE, 3.73 GEARS, 2 1/2 INCH FULL EXHAUST, 1 5/8 SHORTY HEADERS, 73 MM C&L MAF, 70 MM MAC TB, LUNATI CAM, WINDSOR JR HEADS, GT 40 INTAKE WITH PORTED LOWER, WORLD CLASS T5 WITH PRO 5.0 SHIFTER, GRIFFIN ALUMINUM RADIATOR, FLUID DAMPER, SSM TRACTION BARS, 150 HP SHOT N2O KIT, 190 GPH FUEL PUMP. AND MORE TO COME.

09-22-2001, 07:37 PM	#1
5ohCOUPE Registered Member Join Date: Sep 2001 Location: ORANGE PARK FL. USA Posts: 208	PERFORMER RPM OR GT 40 I HAVE A GT 40 INTAKE WITH PORTED LOWER. I WAS WONDERING IF A PERFORMER RPM WOULD BE A BETTER INTAKE. I HAVE HEARD THAT THE PERFORMER RPM FLOWS BETTER THAN A STOCK GT 40 BUT MY GT 40 IS PORTED. IM THINKING THAT I SHOULD JUST STAY WITH THE GT 40.

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09-23-2001, 01:06 PM	#2
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Stick with the GT-40. It's a good flowing intake that keeps your lower rpm power up as well. The performer may flow a little better than a lower ported GT-40, but not enough to worry about, you wouldn't want the performer if you were making more hp than the GT-40 could support anyway as there are better intakes than the Edelbrock out there.

09-23-2001, 04:24 PM	#3
John Registered Member Join Date: Dec 1998 Location: Ft.Myers, FL. Posts: 150	There are plenty of good intakes out there. What have you done to warrant an intake swap? A stock gt40 is good to about 400-425 HP, yours ported is maybe good to 450. Thats alot of hp for street driven rides. I recently installed a cobra and cam on my steed, I ported the lower and heads myself and have no probs w/ flow, @ least that I know of. I've never dynoed my ride, but to get the correct air fuel ratio it is a good idea. I personally would leave well enough alone. John ------------------ 89 Notch: ASP Pullies, K&N Air,Transgo shiftkit,Trans. cooler,FMS 3 core , FMS 4:10's, 1.5" cowl, cold air kit, hooker shorties(jet hot coated), O/R H-Pipe, ASP solid mounts, Energy Sus. Trans. Mnt. BBK 70mm TB, MSD 6al, Dual elec. fans, 5.0 Firepower Kit, Scorpion 1.6 RR's, Flowmasters, 73 mm MAF, cobra intake and crower #512 cam,

09-23-2001, 09:22 PM	#4
5ohCOUPE Registered Member Join Date: Sep 2001 Location: ORANGE PARK FL. USA Posts: 208	WELL I WAS THINKING THAT I COULD GET A LITTLE MORE OUT OF IT ON BOTTLE WITH THE RPM BUT I THINK IT WONT MAKE THAT MUCH DIFFERANCE. I WILL JUST STAY WITH THE GT 40. I THINK MY CAR IS DOING PRETTY GOOD ON THE BOTTLE. 11.51 @123. I DIDNT THINK IT WOULD DO THAT WITH THE MODS I HAVE. ------------------ 91 LX COUPE, 3.73 GEARS, 2 1/2 INCH FULL EXHAUST, 1 5/8 SHORTY HEADERS, 73 MM C&L MAF, 70 MM MAC TB, LUNATI CAM, WINDSOR JR HEADS, GT 40 INTAKE WITH PORTED LOWER, WORLD CLASS T5 WITH PRO 5.0 SHIFTER, GRIFFIN ALUMINUM RADIATOR, FLUID DAMPER, SSM TRACTION BARS, 150 HP SHOT N2O KIT, 190 GPH FUEL PUMP. AND MORE TO COME.