I am using $8D (90 SD)and am trying to understand the VE table and need to convert my Diacom "mercury vacuum reading to kilopascal, for use with the turner cat tables.
this does not seem to be the most presice way to determine engine vacuum but it is what it is. thanks for any help.
Looking forward to the next Traxion installment thanks, Mike

 

Mike,

This is easy. Diacom will display the values in kPa. I can't remember the exact place in diacom but I think that it is Options->Units->Metric. Change it from English to Metric.

Tim

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TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

 

http://www.geocities.com/ecmguy.geo/bruce/prog_101.html

Nifty chart included

 

Forget in. Hg...too inaccurate. The ecm thinks "kpa", so set Diacom to Metric as Traxion suggests and life becomes easier.

 

Well that worked great-so muuuuch to learn and keep streight. I must keep better notes. I see that as a key to this whole thing.

thanks for the help.

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90'GTA L98
Blk/Blk leather
355-4 bolt aluminum heads
10/1 forged pistons
comp cams 510 lift 320/330 @.050 114 LSA full crane gold RR,
1 3/4" SLP headers
ported lower/SLP runners 52mm TB, 24# SVO inj.
T700R4 rebuilt by ME.
all the trick stuff. superior shift kit. Fairbanks 9 clutch-noburn/.5" TV boost/Vette servo/Kevlar band/all new bushings etc.etc.etc.

 

Ok, a related question... whats the formula to convert MAP voltage to KPA?