vt and vy engine wiring loom swap

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
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The1
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Joined: Mon Jan 04, 2010 10:23 am

Re: vt and vy engine wiring loom swap

Post by The1 »

enhanced bins with LS6 or 7 MAF should cover a lumpy v6 or v8 with quite a bit of boost prob 20psi or more.
drippy
Posts: 49
Joined: Tue Aug 09, 2011 9:55 pm
cars: Vk V6
Vy V6

Re: vt and vy engine wiring loom swap

Post by drippy »

what would the limit of the standard maf be?
the ls6 maf is that the card style maf? 15865791?
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The1
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Re: vt and vy engine wiring loom swap

Post by The1 »

standard maf ive seen them work between 10,000hz and 11,500hz just depends, it seems to vary, 10psi on factory L67 gets close to the 10,000hz, just see how you go, but if you have the cash upgrading wont hurt.

LS6 is the round MAF, LS7 - 9 is card style maf.

From testing on the bench LS6 MAF appears to limit out at 14,700hz, LS7 maf was 15400hz, card maf would of coarse offer least resistance for airflow.

LS6 MAF part numbers and loom adaptor to plug into factory loom are on the first post of the enhanced thread. LS7 part number is on the last page, it has a different plug again i have listed the pinouts but dont know of a available loom adaptor yet.
drippy
Posts: 49
Joined: Tue Aug 09, 2011 9:55 pm
cars: Vk V6
Vy V6

Re: vt and vy engine wiring loom swap

Post by drippy »

ive been looking over the enhanced bins for the VY flash pcm, im a little confused on where the extra tables are??
is there a different way of changing fueling and spark for higher in the ranges?
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The1
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Re: vt and vy engine wiring loom swap

Post by The1 »

not atm, just support for the extra MAF frequency range. You can tune fueling by adjusting the MAF flow tables, there is a spreadsheet for this in the thread, atm this is the only way until we can write the code to add the extra tables in for proper Fuel/Spark adjustment.
Paul Mulcahy
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Joined: Fri Sep 06, 2013 12:23 am
cars: Austin lancer Chevy nova

Re: vt and vy engine wiring loom swap

Post by Paul Mulcahy »

Hi I have a vy and fitted a vt l67 engine what do I have to change in the vy harnes to run the vt l67 computer thanks for any help
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The1
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Re: vt and vy engine wiring loom swap

Post by The1 »

you can either make one of these up or repin the loom to new plugs.

http://pcmhacking.net/forums/viewtopic.php?f=32&t=3641

you can use VT V6 N/A PCM or VT-VY S/C PCM

If it's a VY then run the VY S/C Memcal in it.
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