please post how much boost you are running and how much timing you re running and how didi you set the timng(BTM, moded dizzy, etc) and any other significant #'s you think are relevant. thanx

 

6.5 PSI, -3 degree

 

how did you achieve this? with a btm or ........? the reason i ask is because i want to know if there is a free way to retard the ignition so i dont have to spend $ on a btm.

 

With the hondata i am running.

12psi @ 21 degrees by the romeditor


Brian

Also i am going to run alot more on race gas..

 

mine is set at .70deg per psi and i start retarding at 5 psi (that whit 9:1 compression and 94 octane rating)
if i had higher compression like 10:1 i would start retarding at 1 psi
also depend on what octane rating your using
so becareful every setup is different
good luck

 

https://honda-tech.com/zerothread?id=393316
This should help you out....the free way...well you need a timing gun

 

do the btm's retard as boost increases or do they have a set retard.

 

yes 1-5 psi start retarding mode

 

EFI PMS, .75 deg/psi

 

I thought with the PMS timing changes were in 1 degree increments.

 

anybody want to help me and tell me how your btm is installed on stock ignition...i cant tell if mine is working or not

 

Its kinda hard to give an exact number, because each motor is gonna run different stock timing at WOT.

I usually go by .7 degree of retard per psi.

 

I usually start out with about 32 total(12 initial). I then taper it down 1 degree per psi boost starting at 7 psi...until I reach 20 total(so I pull out 12 total at any boost above 19psi). If you are going to go above 25psi, 18 or 19 total may be best to be on the conservative side.


Hope that gives you a good baseline to start from...

Dave

 

i assume you cant afford hondata but I would still highly reccomend picking up the BTM, some people have no trouble living without it, but its not worth the gamble IMO

 

At the distro