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400FWHP TBI build attempt thread
1992 C1500 extended cab I picked up for $450.00. Bad 700R4, body damage in the front right corner, GT4 (3.73) rear. Going hydraulic roller. EBL Flash acquired, working on first step with VE tables for (hopefully) start and first run once it's all put together with the upgrades. Rebuilt 700R4 going back in tomorrow, then figuring out why I'm getting the code 23 and doing some driving and tweaking the tune for more experience with EBL Flash prior to buildup. I've researched what I want to do since June and have found a great deal of info along the way, thanks to the dedication of the community. Sean at SPR and Bob at Dynamic EFI have been great to deal with. Brian H's site was the first I found on the subject of TBI performance and has been a great help as well. Tomorrow, transmission. Then the fun begins. Tomorrow I'll post up my first stab at putting together VE tables for all these mods to come. May be good for laughs, might be in the ballpark.
Another EBL Flash question
I think I've answered my own questions about the pressure. 39-40psi will be ok, EBL's BPC tables will handle it. Base pressure on the 20-60# spring needs to be set at 39-40psi with the vacuum nipple open to air. Then connect it and let vacuum handle the pressure drop at idle, with corresponding BPC vs. VAC table values. I expect a touch over 15" Hg at commanded idle speeds with IAC vs. temp at normal operating temps. Next question is why am I missing the BST-BPC vs Boost for a 1-bar MAP?? I see 4 tables each for 2-bar and 3-bar but none for 1-bar. I looked in the option words and as expected none of the 2 or 3-bar words are set, and apparently I didn't miss turning on the default of 1-bar MAP. So, if using a 1-bar MAP, just don't worry about the BST-BPC vs Boost? I think this is pretty much the last thing for the base starter tune. Again, any feedback or criticism of anything I've posted so far with any of this is appreciated.