AEM Universal V8 Engine NA User Manual

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© 2 015 A EM  P erfo rm ance E le ctr o nic s
Modif y in g M ech an ic al A dvan ce D is tr ib uto r
T he fo llo w in g s te ps o utlin e th e n ecessary  s te ps  to  m odify  a  m echanic al a dva nce  d is trib uto r fo r u se  w it h
t h e A EM  In fin it y  E M S. O f  p artic ula r im porta nce is  id entify in g th e c orre ct to oth  o n  th e  e ig ht to oth  re lu cto r
w heel  th at is  to  b ecom e th e s in gle  p uls e c am  trig ger o nce  a ll  o th er te eth  h ave  b een  re m ove d  in  o rd er to
a chie ve  p ro per ig nit io n s ync a nd ro to r p hasin g. T he d is trib uto r w ill  b e s et u p in  a  w ay  th at th e  c am  p uls e
o ccurs  9 0° b efo re  T D C fo r c ylin der # 1. T hese  in stru ctio ns  m ust b e  c lo sely  fo llo w ed  if  th e  s upplie d  b ase
s essio ns a re  to  b e u sed.  
Ste p  1
I d entify  te rm in al  # 1 o n th e d is trib uto r c ap a s if  th e d is trib uto r w ere  in sta lle d in  th e e ngin e. D is trib uto r is  to
b e in sta lle d in to  th e e ngin e s o th at th e c ap h old  d ow n h ard w are  is  c ro ssw is e w it h  th e e ngin e (d ashed
l in ed) w it h  th e c am  s ensor w ir e s e xit in g o n th e e ve n-c ylin ders  s id e o f  th e e ngin e. T erm in al  # 1 is  th e
t e rm in al  th at p oin ts  to w ard s c ylin der # 1 (a rro w ).   
						

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© 2 015 A EM  P erfo rm ance E le ctr o nic s
Ste p  2
O nce te rm in al  # 1 h as b een id entifie d, m ark  th e d is trib uto r b ase to  in dic ate  w here  te rm in al  # 1 is  a lo ng
w it h  th e te rm in al  b efo re  te rm in al  # 1 (te rm in al  # 2 fo r C hevy ). A pply  m askin g ta pe to  th e h ousin g fir s t if
y ou d o n ot w is h to  p erm anently  m ark  th e d is trib uto r. 
Ste p  3
R em ove  d is trib uto r c ap. L ook u nder
d is trib uto r ro to r to  s ee 8  to oth  re lu cto r
w heel  a nd s ensor p ic kup. T urn
d is trib uto r s haft  to  p osit io n th e ro to r a t
t h e te rm in al  B EFO RE te rm in al  # 1 (# 2 fo r
C hevy ). N ote  w hic h to oth  o f  th e 8  to oth
r e lu cto r w heel  is  n ow  a lig ned w it h  th e
s ensor p ic kup a s th is  w ill  b ecom e th e
s in gle  to oth  ta rg et. M ark  th is  to oth  fo r
r e fe re nce.
Ste p  4
C heck th at th e p ro per to oth  h as b een
s ele cte d b y tu rn in g d is trib uto r s haft  in
c orre ct d ir e ctio n o f  ro ta tio n (c lo ckw is e
f r o m  to p fo r C hevy ). W hen ro to r is
a lig ned w it h  th e te rm in al  B EFO RE
t e rm in al  # 1 (# 2 fo r C hevy ), th e to oth  th at
w as s ele cte d in  s te p 3  s hould  b e
a lig ned w it h  th e s ensor p ic kup.
C ontin uin g to  ro ta te  th e d is trib uto r s haft
t o  a lig n th e ro to r w it h  te rm in al  # 1 s hould
m ean th at th e s ele cte d to oth  w ould  h ave
r o ta te d p ast th e s ensor p ic kup. If  th is  is
t ru e, th e s ele cte d to oth  is  c orre ct. If  th is
i s  n ot tru e, re peat s te p 3  u ntil  th e a bove
c ondit io n is  m et. 
						

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S
te p  5
R em ove  ro to r a nd m echanic al  a dva nce
c om ponents  (s prin gs, w eig hts , e tc .)
i n clu din g s m all  lo ck n ut (c ir c le ) o n th e
a dva nce s to p b ushin g p in  fr o m  u nder
a dva nce m echanis m .
Ste p  6
R em ove  ro ll  p in  fr o m  d riv e  g ear a nd th en
r e m ove  g ear fr o m  s haft . T his  is  b est
c om ple te d u sin g a n a rb or o r h ydra ulic
p re ss s o p re ssure  c an b e a pplie d in  a
s lo w  a nd c ontro lle d m anner. T ry in g to
d riv e  th e p in  o ut w it h  a  h am mer a nd
p unch c ould  p ote ntia lly  d am age th e
d riv e  g ear o r th e d is trib uto r it s elf.  N ote
t h at th e ro ll  p in  d oes n ot n eed to  b e
c om ple te ly  p re ssed o ut o f  th e g ear. It
o nly  n eeds to  b e p re ssed o ut fa r e nough
t h at th e g ear c an b e re m ove d fr o m  th e
s haft .
Ste p  7
C are fu lly  re m ove  th e e ntir e  s haft
a ssem bly  fr o m  th e d is trib uto r h ousin g.
B e m in dfu l  o f  a ny s him s a nd th eir  p ro per
l o catio n fo r re assem bly . 
						

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© 2 015 A EM  P erfo rm ance E le ctr o nic s
Ste p  8
R em ove  th e lo w er s ectio n o f  th e
a dva nce m echanis m  th at h as th e 8
t o oth  re lu cto r w heel  o n it  b y s lid in g it
d ow n a nd o ff  th e s haft .
Ste p  9
C are fu lly  re m ove  th e a ppro pria te  te eth
l e avin g o nly  th e s in gle  to oth  id entifie d in
s te p 3 . A n a ir  g rin der w it h  c ut o ff  w heel
f o llo w ed b y a  s andin g d is c w ork s w ell  fo r
t h is  o pera tio n.
Ste p  1 0
R e-a ssem ble  th e a dva nce m echanis m  b y s lid in g th e lo w er s ectio n b ack o nto  th e s haft . B e s ure  to  lo cate
t h e a dva nce s to p b ushin g p in  in to  th e s m all  h ole  in  th e lo w er s ectio n to  lo ck th e a dva nce m echanis m .
I n sta ll  th e w asher a nd lo ck n ut o nto  th e a dva nce s to p b ushin g p in .   
						

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© 2 015 A EM  P erfo rm ance E le ctr o nic s
Ste p  1 1
R e-a ssem ble  th e d is trib uto r a nd p erfo rm  fin al  c heck o f  p ro per re la tio nship  b etw een ro to r, s in gle  to oth
t a rg et, a nd s ensor p ic kup. W hen ro to r is  a lig ned w it h  th e te rm in al  B EFO RE te rm in al  # 1 (# 2 fo r C hevy ),
t h e s in gle  to oth  ta rg et s hould  b e a lig ned w it h  th e s ensor p ic kup. C ontin uin g to  ro ta te  th e d is trib uto r s haft
t o  a lig n th e ro to r w it h  te rm in al  # 1 s hould  m ean th at th e s in gle  to oth  s hould  h ave  ro ta te d p ast th e s ensor
p ic kup. 
						

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© 2 015 A EM  P erfo rm ance E le ctr o nic s
In sta llin g D is tr ib uto r
Ste p  1
T he d is trib uto r is  g oin g to  b e in sta lle d w it h  th e c ap h old  d ow n h ard w are  o rie nta te d a cro ss th e e ngin e
( d ashed lin e), te rm in al  # 1 is  th e te rm in al  th at p oin ts  to w ard s c ylin der # 1 (a rro w ) a nd w ir in g lo om  c om in g
o ut o f  d is trib uto r is  o n th e rig ht. 
						

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© 2 015 A EM  P erfo rm ance E le ctr o nic s
S
te p  2
R ota te  e ngin e to  T D C c om pre ssio n fo r c ylin der # 1. V erify  th at e ngin e is  a t T D C c om pre ssio n b y
c heckin g th at b oth  th e in ta ke a nd e xhaust v a lv e s fo r c ylin der # 1 a re  c lo sed. A lt e rn ativ e ly , th e e ngin e c an
b e c ra nked o ve r u sin g th e s ta rte r m oto r w it h  th e s park  p lu g fo r c ylin der # 1 re m ove d. P la ce y our th um b
o ve r th e s park  p lu g h ole  a nd fin d w here  y ou fe el  th e m ost p re ssure  in  c orre la tio n to  w hen th e c ra nk
b ala ncer p asses th e T D C in dic atio n to  d ete rm in e th at th e e ngin e is  o n th e c om pre ssio n s tro ke.
Ste p  3
W hen in sta llin g th e d is trib uto r, th e ro to r w ill  ro ta te  a ppro xim ate ly  4 5° c lo ckw is e a s th e d is trib uto r d riv e
g ear e ngages th e c am  g ear. B ecause o f  th is , th e ro to r m ust b e ro ta te d o pposit e  th e d ir e ctio n o f  n orm al
r o ta tio n b y o ne te rm in al  p osit io n b efo re  b ein g in sta lle d in to  th e e ngin e. W it h  th e ro to r tu rn ed b ack o ne
t e rm in al  p osit io n, c heck th e o rie nta tio n o f  th e o il  p um p d riv e  ta ng a t th e b otto m  o f  th e d is trib uto r s haft .
Ste p  5
S lo w ly  lo w er th e d is trib uto r in to  th e e ngin e. If  d is trib uto r d oes n ot im media te ly  d ro p in to  p la ce, try
r o ta tin g th e ro to r s lig htly  in  e it h er d ir e ctio n in  o rd er to  g et th e d is trib uto r d riv e  g ear to  m esh w it h  th e c am
g ear. A ddit io nally , th e o il  p um p d riv e  s haft  m ay n eed to  b e a dju ste d fu rth er in  o rd er to  g et th e d is trib uto r
t o  d ro p c om ple te ly  d ow n in to  th e e ngin e.
Ste p  4
C heck th e o rie nta tio n o f  th e o il  p um p d riv e  s haft  in  th e e ngin e a nd a dju st it  a s n ecessary  u sin g a  lo ng
s cre w driv e r s o th at th e o il  p um p d riv e  ta ng o n th e d is trib uto r c orre ctly  e ngages th e o il  p um p d riv e  s haft
a s th e d is trib uto r is  in sta lle d in to  th e e ngin e.
Ste p  6
O nce d is trib uto r is  fu lly  in sta lle d in to  e ngin e, v e rify  th at ro to r is  lin ed u p w it h  th e c ylin der # 1 te rm in al
p osit io n w hile  th e e ngin e is  s till  a t T D C. If  ro to r is  n ot lin ed u p, th e a bove  p ro cess w ill  n eed to  b e
r e peate d u ntil  it  is .
* *N O TE ** It  is  h ig hly  re com mended th at th e d is trib uto r c ap h ave  a  “w in dow ” p ut in to  it  in  o rd er to  c heck
r o to r p hasin g o n te rm in al  # 1 o nce th e e ngin e is  ru nnin g. 
						

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© 2 015 A EM  P erfo rm ance E le ctr o nic s
LO ADIN G  B ASE S ESSIO N
F or e ach d iffe re nt c om bin atio n o f  c am /c ra nk trig gers  a nd d is trib uto rs  u sed, th ere  is  a  p ro vid ed b ase
s essio n th at m ust b e lo aded in to  th e In fin it y  E CU. O nce th e b ase s essio n h as b een lo aded, th e s etu p
w iz ard s w ill  n eed to  b e re vie w ed a nd th e ig nit io n tim in g w ill  n eed to  b e s ynced u sin g th e In fin ity V 8
l a yout.  
1 . C onnect U SB c om ms c able  b etw een E CU a nd P C.  
2 . Turn  ig nit io n s w it c h o n.
3 . O pen In fin it y Tuner; c onnectio n s ta tu s s hould  b e g re en a nd in dic ate  E CU ty pe. 
4 . O pen In fin it y  V 8 la yout: L ayout> O pen L ayout. L ayout is  lo cate d in  M y D ocum ents > A EM >In fin it y
T uner> Layouts .  
5 . U plo ad b ase s essio n: F ile > Im port C alib ra tio n D ata . B ase s essio n is  lo cate d in  M y
D ocum ents > A EM >In fin it y  T uner> S essio ns.
6 . A ft e r s essio n h as lo aded, tu rn  ig nit io n s w it c h o ff,  w ait  fo r m ain  re la y to  c lic k o ff,  a nd th en tu rn  ig nit io n
s w it c h b ack o n.  
7 . A ft e r c om ms h ave  b een re esta blis hed, re vie w  S etu p W iz ard : P lu g-in s> W iz ard > S etu p W iz ard . 
						

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© 2 015 A EM  P erfo rm ance E le ctr o nic s
SETU P W IZ A RD
T he fo llo w  is  a n o ve rv ie w  o f  th e b asic  w iz ard  s ettin gs th at n eed to  b e c hecked b efo re  a tte m ptin g to  s ta rt
a nd ru n a n e ngin e. P le ase re fe r to  th e m ain  In fin it y  u ser g uid e fo r in fo rm atio n a bout th e a dva nced w iz ard
s ettin gs.
Engin e
S et e ngin e d is pla cem ent, n um ber o f  c ylin ders , e ngin e c ycle  ty pe, ig nit io n ty pe, a nd fir in g o rd er a s
n ecessary .
Tunin g P re fe re n ces
I f  K ey O ff  C om mit  is  s ele cte d, th e E CU w ill  a uto m atic ally  s ave  a ny u nsave d c hanges w hen th e ig nit io n
p ow er in put (p in  C 1-6 5) is  tu rn ed o ff.  T his  fu nctio n c ould  ta ke s eve ra l  s econds to  c om ple te . If  b atte ry
p erm anent p ow er (p in s C 1-1 0 a nd C 2-5 0) is  re m ove d b efo re  th is  a ctio n h as c om ple te d, th e E CU m ay
b ecom e in opera ble  a nd re quir e  re pro gra m min g a t A EM . It  is  g enera lly  re com mend th at K ey O ff  C om mit
b e u sed.  
						

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Cam /C ra n k
T he c am /c ra nk w iz ard  s ele cts  th e s ensor ty pe, trig ger p atte rn  a nd n ois e filt e r s ettin gs. N ote  th at “N o
w iz ard  is  s ele cte d o r m atc hed” m ay b e in dic ate d b ecause th e lo aded b ase s essio n h as c am /c ra nk
s ettin g v a lu es th at h ave  a lr e ady b een s et fo r th e s pecific  c om bin atio n th at d o n ot m atc h th e p re set
w iz ard  v a lu es. S ele ctin g a  p re set c am /c ra nk w iz ard  c onfig ura tio n w ill  o ve rw rit e  a ny c am /c ra nk s ettin gs
t h at m ay a lr e ady e xis t in  th e b ase s essio n. In  o th er w ord s, d o n ot c hange th ese s ettin gs u nle ss a
d iffe re nt c om bin atio n o f  p arts  is  b ein g u sed fr o m  w hat th e b ase s essio n w as c re ate d fo r.