INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

BTR stg 4 Ls1/2 cammed 1500 HD Silverado

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Old Apr 3, 2020 | 11:09 PM
  #11  
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Keep us updated on the dyno results. Its nice to see something different. Also the 11-1 compression probably helps with off idle power.
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Old Apr 4, 2020 | 06:27 AM
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Originally Posted by Uppgrade
Sorry I didnt see all of your post. Yes, stock throttle body, 78mm, adapted on stock intake. the stock TB is good for 450 rwp from what I've heard. I did the bigger factory throttle bodies on my other 6.0 truck, with the x-link, and kept getting random misfire codes. It pulled stronger with the bigger TB, but the misfire codes drove me nuts. And yes stock airbox for now too. Once I finish the turbo build on my other truck, the CAI is going on this truck with the stage 4 cam.
I had a similar issue with REP mode. After some soul searching, I found reference to a very specific TB model number.

I bought it and haven’t had an issue since.
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Old Apr 4, 2020 | 06:29 AM
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Originally Posted by dantheman1540
Keep us updated on the dyno results. Its nice to see something different. Also the 11-1 compression probably helps with off idle power.
I’m at 12.5:1 with a -1 overlap cam. It’s peppy as fk.
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Old Apr 4, 2020 | 07:43 AM
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Originally Posted by madmann26
I had a similar issue with REP mode. After some soul searching, I found reference to a very specific TB model number.

I bought it and haven’t had an issue since.
Since you mentioned it, what is the TB you used and part number. And did you use an X-link?
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Old Apr 4, 2020 | 07:47 AM
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Originally Posted by madmann26
I’m at 12.5:1 with a -1 overlap cam. It’s peppy as fk.
Damn, pump gas still? How much timing? Mines does 25* through first and 2and, 3rd was only able to hold 17* because it's so heavy at 6k lbs with me in it. But I didnt have a full tank of premium. Going for a comb over tune this wknd and will have only premium in it by then.
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Old Apr 4, 2020 | 07:50 AM
  #16  
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I will post dyno numbers and video when it's done. The compression does help no doubt. The 3400 convertor is another helper. The gears are holding it back to with this much cam and heavy weight.
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Old Apr 4, 2020 | 08:30 AM
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Originally Posted by uppgrade
since you mentioned it, what is the tb you used and part number. And did you use an x-link?
RME87-3c9992
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Old Apr 4, 2020 | 08:33 AM
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Originally Posted by Uppgrade
Damn, pump gas still? How much timing? Mines does 25* through first and 2and, 3rd was only able to hold 17* because it's so heavy at 6k lbs with me in it. But I didnt have a full tank of premium. Going for a comb over tune this wknd and will have only premium in it by then.
Yes. 93 octane and 22 degrees up top.

Tighten the gap up on the plugs a little.
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Old Apr 4, 2020 | 07:20 PM
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Went out and did the final tuning with my tuner today. With a full tank of 93, it took 24 * and 12.0 a/f ratio. Feels real good now
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