1991 Civic hatch si (OBD-0)

D16a6 STOCK bottom end (less than 65k on it)
D16z6 STOCK cylinder head (less than 100k on it)
stock PM6 ECU
Apexi V-AFC
DSM 390cc injectors
MSD 6AL
MSD BTM
Nissan .60/.63 T3 turbo (6.5PSI)
FMIC: Core - 18x6x2
Greddy Type S bov
ZC tranny with LSD
13LBS flywheel
Exedy organic clutch

and i know for the AFC hack it advances timing, but how much? and how much º's should i retard it on the BTM?? also let me know if theres anything else i should get or need!!!


Mason

 

only retard about .25 degrees with the btm

where the hell were u able to find a lsd zc tranny at?

 

friend in the cities.. supposivly it has the Phantom Grip LSD tho... it works tho its also got the Si final drive!

 

oh i thought it was a factory lsd zc tranny. i cant find one!! let me know how it works out with the si final drive.

 

BTM + afc hack really doesnt do much. the timing is advanced under low boost because of how the maps are scaled, so you are trying to retard timing .25 degrees of which it is advanced about 10 degrees past where you want it. you are better off running 10-11 psi and retarding about 3 degrees at the distributor..

 

yes i know, i only got the BTM cuz it'll *help* retard the timing.. my distributor is retarded the farthest it'll go without making a plate and at idle its -3 or -4 º's retarded... so with the BTM it should help out when boost comes in.. i can retard it 1 - 3º's per each pound of boost.

Mason

 

thats way too much retard, you might as well not boost at all. your going to be slow *** ***. if your hear pinging add more fuel with the afc, if it doesnt go away then start retarding with the btm. if you retard at the dist, your going to be sluggish all around and thats gay.

 

i've had no problems with my other turbo setup.. so i dunno.