Break in pass

[Aeroking]

I have about 200 miles on my engine, so I went to a private rental for some fun. I ran 3 passes, all very close. Was messing around with competitors more than I was focused on the truck, but it was a fun run event

best run.
R/T: .18
60': 1.697
1/8: 7.718 @ 87.6
1/4: 12.209 @ 109.9

no burnout (street tires)
2psi launch
5600rpm shifts
93 pump gas
13psi, 12deg

peace out

 

[Cronic fatigue]

Re: Break in pass

Only 13 #'s, it's gonna move when u let her have it all.!!

 

[Sportmachines]

Re: Break in pass

I was thinking the same thing! Can't wait to see the progress!

 

[dgoodhue]

Re: Break in pass

12 degrees of timing is also super conservative. I gain 4 mph in the 1/4 mile mph by upping my timing from 14 to 19 degrees.

 

[mattw]

Re: Break in pass

I wanted to reply sooner but the forum wasn't cooperating.. Great times for those mild boost and timing settings...

 

[SY-1193]

Re: Break in pass

I have about 200 miles on my engine, so I went to a private rental for some fun. I ran 3 passes, all very close. Was messing around with competitors more than I was focused on the truck, but it was a fun run event

best run.
R/T: .18
60': 1.697
1/8: 7.718 @ 87.6
1/4: 12.209 @ 109.9

no burnout (street tires)
2psi launch
5600rpm shifts
93 pump gas
13psi, 12deg

peace out

Brandon, did you get to look at your headers? Were they glowing at that timing?

 

[Aeroking]

Re: Break in pass

No, I didn't get a look at the headers. They do cool down ridiculously quick compared to manifolds.

I have a streetcar night 9pm-1am coming up this weekend. I will try to push 17psi on pump gas. Last year with the iron heads I kept the boost at 15 on pump gas with 20deg timing. On the aluminum heads I could probably push a little more timing, but we'll see what the plugs say.

Last Sunday was also a scorcher in the middle of the day. IATs were at 120 in the burnout box and 150 crossing the line. 150 is were I start dumping fuel to cool it down. Late night runs will yield better times.

 

[T-Bone]

Re: Break in pass

That's some nice numbers Brandon. Congrats in advance on a soon coming 10.xx pass !!

 

[autoaddictions]

Re: Break in pass

Nice times Brandon. Can you elaborate on your heads. And what you did to them.

 

[Aeroking]

Re: Break in pass

I switched from tweaked L35s to untouched Brodix -8s.

This also dropped my CR from 9.5 down to 9.0

 

[Gnocide]

Re: Break in pass

sweet &
tell me about used l35s!!!!

 

[autoaddictions]

Re: Break in pass

I switched from tweaked L35s to untouched Brodix -8s.

This also dropped my CR from 9.5 down to 9.0

Did your manifolds/ headers bolt up! Did you use strait plug heads. I was considering brodex for my syclone I have ported vortecs.

 

[Aeroking]

Re: Break in pass

Did your manifolds/ headers bolt up! Did you use strait plug heads. I was considering brodex for my syclone I have ported vortecs.

straight plug.

to make them work I had to use a vortec-modified stock intake (from RPM). a set of offset rocker arms (from Jesel). a set of perimeter bolt valve covers (from RPM).

and this small modification to the passenger header collector