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-   -   Initial thoughts on Pete's Intake/Exhaust cam combo (http://zr1.net/forum/showthread.php?t=20116)

XfireZ51 04-30-2013 11:10 PM

Initial thoughts on Pete's Intake/Exhaust cam combo
 
They're very nice.

XfireZ51 05-01-2013 11:04 PM

Re: Initial thoughts on Pete's Intake/Exhaust cam combo
 
With each successive calibration update, the car gets more fun to drive. Idle is at about 875-925 but the roughness of it has been calmed down. Throttle is very responsive. Fifth gear feels like fourth or even third. No hesitation when I hit the loud pedal. Moving off from a standstill feels as if there is more bottom end. I can drive the car in 6th gear at 8-900 rpm w no lugging. It's blubbery, but it will pull,until it starts to accelerate more normally. At cruise, the motor is pretty quiet and smooth. A few more runs to hone the tune further but it's getting pretty close. Exhaust note makes radio unecessary. Next up will be WOT.

Paul Workman 05-02-2013 08:23 AM

Re: Initial thoughts on Pete's Intake/Exhaust cam combo
 
Sounds great! Looking forward to your dyno numbers next!

P.

efnfast 05-02-2013 08:34 AM

Re: Initial thoughts on Pete's Intake/Exhaust cam combo
 
Dom, what did you have done?

Pete 05-02-2013 12:31 PM

Re: Initial thoughts on Pete's Intake/Exhaust cam combo
 
Hi Dom

I hear you need to give the car a push start from stop lights. :-D

Pete

FU 05-02-2013 12:35 PM

Re: Initial thoughts on Pete's Intake/Exhaust cam combo
 
SSHHHHHHHHhhhhhhh Stop talking about Pete........he's here now !

XfireZ51 05-02-2013 02:10 PM

Re: Initial thoughts on Pete's Intake/Exhaust cam combo
 
Quote:

Originally Posted by Pete (Post 171575)
Hi Dom

I hear you need to give the car a push start from stop lights. :-D

Pete

Yes you do. There's no low end torque. I'm gonna cut a hole in the floorboard and get some Fred Flintstone sandals so I can get car rolling.

tpepmeie 05-02-2013 09:14 PM

Re: Initial thoughts on Pete's Intake/Exhaust cam combo
 
Go bigger. You need some 255's on the intake, and at least .500 lift to get the ports working.... :)

I'm planning an upgrade path for the 427. Think 800 N/A is within reach? Who needs streetability?

T

LGAFF 05-02-2013 09:17 PM

Re: Initial thoughts on Pete's Intake/Exhaust cam combo
 
The new Ford 5.0 DOHC uses performance cams with .497 intake lift and .453 exhaust.....

XfireZ51 05-02-2013 10:38 PM

Re: Initial thoughts on Pete's Intake/Exhaust cam combo
 
Quote:

Originally Posted by tpepmeie (Post 171634)
Go bigger. You need some 255's on the intake, and at least .500 lift to get the ports working.... :)

I'm planning an upgrade path for the 427. Think 800 N/A is within reach? Who needs streetability?

T

Todd,

Actually Pete's current cams are larger than these. He tells me the cams now installed on my motor are the ones that did a 129 trap. He thinks he's at a six of one, half a dozen of the other situation on cams for a 5.7L motor.

Would you keep exhaust as is, or go bigger on yours? What overlap are you planning on? Be interesting to get Behan's view


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