GM Racing Exhaust Ported Cylinder Head
12-02-2013, 10:39 PM
#252
Should be up and running this weekend. Taking my time. The car is parked for the winter. I know u Texas guys don't understand what winter is 
They have a nice mild lope to them. Can def tell the car is cammed.
They have a nice mild lope to them. Can def tell the car is cammed.
Last edited by Staged07SS; 12-03-2013 at 07:18 AM.
12-04-2013, 07:51 AM
#259
The GMR calibration hasnt failed me yet.
I wont be flowing as much as the build books engine due to a less aggressive cam profile (Comp/ZZP S1 vs. GMR), so I may be ok.
Everything will be checked. For now, I just want to get her started up and running.
Last edited by Staged07SS; 12-04-2013 at 08:42 AM.
12-04-2013, 11:05 AM
#267
So I pushed it off to the side, waited and tried for a half second and it fired right up! Went back tot he shop and got it clocked right and had a story to tell lol.
12-04-2013, 11:18 AM
#269
There seem to be 2 ways that it will start after about 5 seconds, 1 way that it works correctly, one way it starts every time but throws a code, 1 way it will not start at all, and one way that it will start late sometimes and backfire terribly sometimes lol.
12-04-2013, 02:52 PM
#275
Hahaha, yup.
This is actually by second time timing the car, so I feel 100% confident she will fire fine.
Last year, I had some issues with the CPS and timing in general, but got them figured out.
This year it was a breeze. These cars are cake to work on.
This.
I perfectly brought the car to TDC via the timing mark on the harmonic balancer & front cover (intake cam @ 2 o'clock, exhaust cam @ 10 o'clock).
Rotated the CPS wheel to line up with the timing mark on the outside of the housing, and popped her in. She slid in with ease.
Yes sir. How do you think I ran my cams??
I have no worries that the GMR tune will run just fine. I've had lots of convos back and forth with Bill Duncan (the GM Engineer who helped develop the tune and the engine in the build book).
Last time (last year), on my initial start up, I had some issues. Car was out of timing by a tooth, due to the chain jumping while using the kent moore cam sprocket tool. Retimed the engine the right way, and she fired right up.
This time, I'm much more confident. I've gone over everything a million times. She should be good to go.
This is actually by second time timing the car, so I feel 100% confident she will fire fine.
Last year, I had some issues with the CPS and timing in general, but got them figured out.
This year it was a breeze. These cars are cake to work on.
I perfectly brought the car to TDC via the timing mark on the harmonic balancer & front cover (intake cam @ 2 o'clock, exhaust cam @ 10 o'clock).
Rotated the CPS wheel to line up with the timing mark on the outside of the housing, and popped her in. She slid in with ease.
I have no worries that the GMR tune will run just fine. I've had lots of convos back and forth with Bill Duncan (the GM Engineer who helped develop the tune and the engine in the build book).
Last time (last year), on my initial start up, I had some issues. Car was out of timing by a tooth, due to the chain jumping while using the kent moore cam sprocket tool. Retimed the engine the right way, and she fired right up.
This time, I'm much more confident. I've gone over everything a million times. She should be good to go.
Last edited by Staged07SS; 12-04-2013 at 06:08 PM.
