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View Full Version : Some iteresting thigns I read in the new issue of PHR

Mars_302
03-15-2006, 02:17 AM
* apparently the new LS7 heads flow 384 cfm@.650 lift :-o

* there was a nice write up where they switched cam timing on the 4 and 7 cylinders and picked up 20 hp I think on their test motor. It was a SBC motor.

*and there was a very intersting little side piece to this. If you were to change around the cylinder numbering on an LSX motor, its the same firing order as ford windsors :mullet:
Guado
03-15-2006, 12:41 PM
On The race engine my future father in law had built for his sprint car they actually use the ford firing order on it for more torque and smoother idle. It's crazy. 360CID SBC @ 684hp 600ft'lbs
Country Boy
03-15-2006, 09:52 PM
*and there was a very intersting little side piece to this. If you were to change around the cylinder numbering on an LSX motor, its the same firing order as ford windsors :mullet:

This makes absolutely no sence... if you change around any cylinder numbering, it could be any V8. Its the same firing order as a SBC, just two cylinders are swapped.

SBC: 18436572
LSX: 18726543
Guado
03-15-2006, 10:19 PM
I think he meant to change the #'s of teh actual cylidners to the way ford #'s them. They will have the same firing order. Not just switching them around to make it have the same #'s...come one Carl. We know Jerms is smarter than the average bear...
Mars_302
03-15-2006, 11:09 PM
I think the exact explaination was something along the lines of if you # the acutal cylinders to the ford style, aka 1234 5678 intead of the chevy 1357 2468
Country Boy
03-17-2006, 09:03 AM
gotcha... Didnt know the Ford labeled the cylinder different, but theres sonly so many ways to make a V8 run because of the rotation and balance.
Just Dave
03-17-2006, 02:02 PM
Late windsors and LSX motors have the same firing order if you look at the position of the cylinder in the block. Since Ford and GM number the cylinders differently the actual firing order looks different.

Also, not sure if you know this, but the exhaust spacing on a windsor and LSX are the same so you can take a set of mustang heders, weld LSX flanges on it, and you have a set of mustang LSX headers. A guy in Texas has a Ford Fairmont wagon with an LS1 with long tubes and a nitrous cam in front of a TH350 and it run's low 6's in the 1/8th.