Cobra or Trick Flow intake with GT40P heads?

SaleenGTS · 01-24-2001, 09:56 AM

Yeah, everything you guys have said are good options. I think one of the reasons I have so much low end torque(dyno shoed about 320@3500, and peaking at 337@4600)is because my heads really woke up with my new intake, allowing them to breathe to their fullest, and becaust I added runner length with my spacer. 89-You will only need a spacer if you have a billet FPR, or any other big FPR...crane and holley FPR's will do fine. Look at it this way. GT-40P heads flow about 200-215 cfm stock at best. The Cobra flows 205-215 cfmExtrude honed flows about 245-250 at best, GT-40 around 225, and the TFS Street Heat flows around 245 cfm stock...Your heads will only flow as much as the intake will allow, but you don't want too much on the intake side, or you will fall on youe @$$. If you plan on keeping the P's, and never porting them, Go with the Cobra, also with the cobra, you cannot upgrade the EGR size. But if you are gonna upgrade TB and EGR, or heads, IMHO, go with the TFS.

------------------
Dustin
1990 Saleen GTSport #14
TFS Street Heat Upper & Lower(Black), TFS TW heads, TFS 3/8" Phenolic Spacer, E303 Cam, FMS 1.6 Roller Rockers, BBK 70mm TB, FMS 70mm MAF, MAC 1 5/8" Equals, Dynomax Super Turbo 2 1/2" cat back, Bassani 2 1/2" Off-Road X-Pipe, MSD 6AL Ignition w/ MSD TFI Coil, Home made Ram Air, Racecraft Suspension

60ft: 2.158
330ft: 5.396
660ft: 8.271 @ 91.43

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01-24-2001, 09:56 AM	#1
SaleenGTS RICE taste like Chicken Join Date: Jun 2000 Location: Edmond, OK Posts: 687	Yeah, everything you guys have said are good options. I think one of the reasons I have so much low end torque(dyno shoed about 320@3500, and peaking at 337@4600)is because my heads really woke up with my new intake, allowing them to breathe to their fullest, and becaust I added runner length with my spacer. 89-You will only need a spacer if you have a billet FPR, or any other big FPR...crane and holley FPR's will do fine. Look at it this way. GT-40P heads flow about 200-215 cfm stock at best. The Cobra flows 205-215 cfmExtrude honed flows about 245-250 at best, GT-40 around 225, and the TFS Street Heat flows around 245 cfm stock...Your heads will only flow as much as the intake will allow, but you don't want too much on the intake side, or you will fall on youe @$$. If you plan on keeping the P's, and never porting them, Go with the Cobra, also with the cobra, you cannot upgrade the EGR size. But if you are gonna upgrade TB and EGR, or heads, IMHO, go with the TFS. ------------------ Dustin 1990 Saleen GTSport #14 TFS Street Heat Upper & Lower(Black), TFS TW heads, TFS 3/8" Phenolic Spacer, E303 Cam, FMS 1.6 Roller Rockers, BBK 70mm TB, FMS 70mm MAF, MAC 1 5/8" Equals, Dynomax Super Turbo 2 1/2" cat back, Bassani 2 1/2" Off-Road X-Pipe, MSD 6AL Ignition w/ MSD TFI Coil, Home made Ram Air, Racecraft Suspension 60ft: 2.158 330ft: 5.396 660ft: 8.271 @ 91.43