Gotta do a Rebuild, Gonna Upgrade Too

[intergalactron]

New question today... The cam I chose (BTR Stage II) will require a tune. There's a guy local to me that is well known and has a good reputation. But I'm a little concerned about doing dyno pulls on a freshly rebuilt motor. Should I be?

Secondarily, I see that HP Tuners has a 'remote tuning' setup. Anyone have any experience with that?

 

[Marky Dissod]

... The cam I chose (BTR Stage II) will require a tune.
There's a guy local to me that is well known and has a good reputation.
But I'm a little concerned about doing dyno pulls on a freshly rebuilt motor. Should I be?

Secondly, I see that HP Tuners has a 'remote tuning' setup. Anyone have any experience with that?

1. The rest of the engine is properly broken in right? Until it's tuned to yours and your tuner's satisfaction,
no SUDDEN throttle changes.
The difference between 0%-100% TPS in 0.1sec, vs 0%-100% TPS in 1.0 secs matters.

2. No remote tuning experience. I've sat next to the driver while reading what the laptop says in realtime.
I imagine a smart enough guy'd understand laptop recordings regardless of when they were made.

How many questions have you asked this tuner?

 

[intergalactron]

1. The rest of the engine is properly broken in right? Until it's tuned to yours and your tuner's satisfaction,
no SUDDEN throttle changes.
The difference between 0%-100% TPS in 0.1sec, vs 0%-100% TPS in 1.0 secs matters.

2. No remote tuning experience. I've sat next to the driver while reading what the laptop says in realtime.
I imagine a smart enough guy'd understand laptop recordings regardless of when they were made.

How many questions have you asked this tuner?

1. Still theoretical, but most likely it'll be new rod and main bearings, new cam (maybe new cam bearings), new lifters, new push rods, new oil pump, new piston rings. Re-using old pistons, con rods, high pressure fuel pump. Cylinders will be honed. Everything will be cleaned before re-assembly.

I haven't spoke directly to the tuner yet. He's weeks out, so I reserved a spot in line. His assistant didn't understand my questions/concerns. An in-person conversation is definitely on my to-do list.

 

[Marky Dissod]

1. Still theoretical, but most likely it'll be new rod and main bearings, new cam (maybe new cam bearings), new lifters, new push rods, new oil pump, new piston rings.
Re-using old pistons, con rods, high pressure fuel pump. Cylinders will be honed. Everything will be cleaned before re-assembly.

I haven't spoke directly to the tuner yet. He's weeks out, so I reserved a spot in line.
His assistant didn't understand my questions/concerns. An in-person conversation is definitely on my to-do list.

New cam, new cam bearings; don't maybe it.
Most assistants don't, unless they are also experienced tuners.

When you bought it from GM, GM 'said', "this is the tune, take it or leave it'. You were so unhappy with it, that you went and changed the CAM.
If you chose it well - if it actually suits your expectations - then it'll be simple explaining to your tuner what you want and what you don't.

Don't forget that you have TWO shift tables: Normal, and Tow / Haul - two distinct personalities available.
My 'Normal' table makes GM's 'Normal' look like GM thinks the driver is in their late 70s.
My 'Tow / Haul' table is more like a 'Performance / Sport' table, because I never tow / haul.