Turbo it !!!
Does this setup have a Allison trans controller ??
I wasn't sure if the 0411 could control that trans.
-Justin
Turbo it !!!
Does this setup have a Allison trans controller ??
I wasn't sure if the 0411 could control that trans.
-Justin
All Allisons have their own TCM, the 8.1/Alli combo is unique, it uses the LS1 PCM for the engine but the A40 (I think?) TCM controls the Allison.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
on table b6612, what exactly is the TP % ? example: at 8,000 rpms and 100% Torque Limit, the TP% is 100%. so does that mean the TB is open 100%, closed 100% or the TB blade angle is 100%? still trying to wrap my head around this table! thanks yall
02' Chevy 2500HD 496/Ally,EC/LB,4x4,3.73,AirRaid CAI,180' t-stat,Comp Cams 1.72:1 Roller-Tip rockers,SW 1 7/8 LongTube Headers
BBK TB back in the box-for now
New 8.1 with Raylar heads: build in progress
U.S.M.C.
You're basically correct. The data is the commanded TB blade position for the requested torque limit based on RPM. Example, if the PCM calls for a TQ reduction of 50% at 4000 RPM the TB will be commanded to the indicated position percentage shown in that cell on the chart regardless of what the actual throttle pedal request is. On your stock tune as an example that would be an actual blade position of 13.11. So you can see why you want these numbers as high as possible without running into throttle hang issues.
so big mike, could you post your tune for your 8.1 to give me something to look at? im gona try and play with the B6612 table tomorrow again. think im gona max it out at 100% and see what it does, if nothing or negative results i will then start back from stock and do small percent increases. then gona learn auto-ve! and i do appreciate the patience you have had with my un-knowledgeable self!
02' Chevy 2500HD 496/Ally,EC/LB,4x4,3.73,AirRaid CAI,180' t-stat,Comp Cams 1.72:1 Roller-Tip rockers,SW 1 7/8 LongTube Headers
BBK TB back in the box-for now
New 8.1 with Raylar heads: build in progress
U.S.M.C.
i set B6612 to 100% across the board, it didnt stick on me but if i am in the fuel hard then take my foot off it seems like it cracks the throttle open itself for a second. im gona run it for the day then decide. is there any other tables i should mess with to get this one to work?
02' Chevy 2500HD 496/Ally,EC/LB,4x4,3.73,AirRaid CAI,180' t-stat,Comp Cams 1.72:1 Roller-Tip rockers,SW 1 7/8 LongTube Headers
BBK TB back in the box-for now
New 8.1 with Raylar heads: build in progress
U.S.M.C.
No one to date (that I'm aware of) has figured out why changing B6612 has a detrimental effect on some operating systems. I believe it has something to do with things/tables we don't have and the DBW own systems sanity check, so currently there's no way around it. Believe me if there was I'd have that one maxed out.
It's kind of frowned upon to post a tune as a sort of "cheat sheet" that someone spent a lot of time on so I won't post one here, but I would email you one with some timing and fueling mods in it so you have an idea since there's so little 8.1 info around and basing changes on other engines will usually lead you down the wrong learning path with an 8.1. Shoot me a PM with your email.
FYI dart has just released some new iron heads for the 8.1 as well as a carb style intake. You might want to look into using the carb intake, I am sure it will outflow the stock 8.1fi manifold. You could use a plate and mount your bigger throttle body on it, that and adapting it for injectors you could build a lot of power and really get the most out of those raylar heads.
-John
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