Porsche 944 swap with 5.3l Help
Jul 26, 2010 | 01:28 PM
#43
Thread Starter
Staging Lane
Joined: Jan 2009
Posts: 59
Likes: 0
From: Oklahoma City
I've been runnuing the 5.3 hard at 4-5000 rpms around town the last few days to test the factory 944 NA radiator and fans with simply removing the T-stat from the 5.3
It has been over 95 degrees and sometimes 100 here and I finally got the Digital LED temp gauge to hit 190 where fan #1 kicked on. So the the 5.3 doesn't need an aftermarket radiator even
Also the initial rev seems a little slow. I have the MAF sensor under the panel right after the cone, then a long air intake tube to the Throttle body. Would the throttle response get quicker if I moved the maf right before the TB? I can easily do it now as I removed the hood latch and radiator support and put in some trick hood pins...
It has been over 95 degrees and sometimes 100 here and I finally got the Digital LED temp gauge to hit 190 where fan #1 kicked on. So the the 5.3 doesn't need an aftermarket radiator even
Also the initial rev seems a little slow. I have the MAF sensor under the panel right after the cone, then a long air intake tube to the Throttle body. Would the throttle response get quicker if I moved the maf right before the TB? I can easily do it now as I removed the hood latch and radiator support and put in some trick hood pins...
Jul 29, 2010 | 04:56 PM
#44
Thread Starter
Staging Lane
Joined: Jan 2009
Posts: 59
Likes: 0
From: Oklahoma City
Hey Guys, What fuel pressure (PSI) does the stock 5.3 injectors/fuel rail run at?
Also I thought these truck PCM's put out a 4 cylinder tach signal, maybe just the LS1 PCM's as I have heard?
Also I thought these truck PCM's put out a 4 cylinder tach signal, maybe just the LS1 PCM's as I have heard?
Aug 15, 2010 | 09:41 PM
#48
Thread Starter
Staging Lane
Joined: Jan 2009
Posts: 59
Likes: 0
From: Oklahoma City
I'll try and get a vid up this coming weekend.
I put on my Billet VSS kit with the modified 944 cam as a reluctor wheel. The strange deceleration idle has gone away and the fan does not kick on at hiway speeds now.....
The Fidanza Flywheel gives this motor some crazy quick acceleration...
Smoked a WRX coming from Homie Depot with a bag of cement and some 2x4's in back LOL....**** on the LS1... I have driven a few LS cars and this 5.3 is POTENT in a car that weighs 500LB less than a vette no doubt...
I put on my Billet VSS kit with the modified 944 cam as a reluctor wheel. The strange deceleration idle has gone away and the fan does not kick on at hiway speeds now.....
The Fidanza Flywheel gives this motor some crazy quick acceleration...
Smoked a WRX coming from Homie Depot with a bag of cement and some 2x4's in back LOL....**** on the LS1... I have driven a few LS cars and this 5.3 is POTENT in a car that weighs 500LB less than a vette no doubt...
Aug 23, 2010 | 01:53 PM
#49
Thread Starter
Staging Lane
Joined: Jan 2009
Posts: 59
Likes: 0
From: Oklahoma City
Is the 5.3 Truck throttle body the same part# as the LS1 TB?
IF so I want to port it like is in the mod sections to get even better throttle response.
Also, what is the best "bang for the buck" power mod to do to this engine. I've been reading into the 4.8 pistons in the 5.3 block, but that will have to come later.
IF so I want to port it like is in the mod sections to get even better throttle response.
Also, what is the best "bang for the buck" power mod to do to this engine. I've been reading into the 4.8 pistons in the 5.3 block, but that will have to come later.
