MisterGrimm
Newbie
Grimm from Atlanta here. Today I'm here to humbly ask for some guidance from those who are smarter than me with regard to both timing my engine and tuning the EBL FLASH II system in my 1990 C3500 Dually. I hope this is the correct section to post this in..
The engine is a fresh build, though this truck had a 454 in it from the General once upon a time before I owned it. I am a technically savvy journeyman mechanic, but tuning fuel injected stuff is all new for me and I'm currently at a loss.
I guess that I'll start by listing the engine specs. It's a big block 454. According to the build sheet, the engine was built with:
The transmission is a TH400, though I'm fairly confident that even though it's new, because I've been working on this in my free time over the course of a wide span of time, it's nuked. its currently only got Reverse and four neutrals... but that's another story for another day.
I appreciate any and all guidance, and my truck does too!
The engine is a fresh build, though this truck had a 454 in it from the General once upon a time before I owned it. I am a technically savvy journeyman mechanic, but tuning fuel injected stuff is all new for me and I'm currently at a loss.
I guess that I'll start by listing the engine specs. It's a big block 454. According to the build sheet, the engine was built with:
- eagle CS 4" Stroke crank
- king racing xp rod & main bearings
- forged I beam connecting rods
- speed pro coated skirt pistons 10:1 comp
- comp extreme energy cam
- high volume oil pump & pickup
- 2.19 - 1.880 stainless epr valves
- cast oval port heads (stage I port & comp valve job)
- 10 degree moly retainers and locks
- 924.16 comp springs
- roller rockers
- Hedman mid-length headers
- standard 454 tbi throttle body for this year truck
- My first question is: what should the base/initial timing be set at on the engine realistically? The original emissions diagram on the air cleaner said 4 degrees BTDC.
- My second question is: besides setting the SA Initial timing setting in the BIN to match, what else do I need to adjust?
The transmission is a TH400, though I'm fairly confident that even though it's new, because I've been working on this in my free time over the course of a wide span of time, it's nuked. its currently only got Reverse and four neutrals... but that's another story for another day.
I appreciate any and all guidance, and my truck does too!