924Board.org

[bass gt]

Guy's,
Do any of you know whether the N/A dizzy will fit into a Turbo head? Reason is i am thinking of using it as a cam timer for sequential fuel injection if it does.

Regards,

Steve

[sequential]

Yes the n/a will fit we did the same thing for the same purpose.
_________________
928 gts prototype
baby blue engine block
steam in 1,2,3,4 sometimes
cold star issues while on stands
112 whp with new 4 valve head and MIS 2

[Raceboy]

Crank trigger would be better idea. Why? Because distributor will have a play, no matter how tight you'll make it and timing belt will stretch also, in high rpms up to 4-5 degrees.
NA dizzy is only good for short-time replacement or sth.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[bass gt]

Raceboy,
I plan to use a crank trigger as well, but have been looking into the merits of sequential injection over grouped. As i plan to use fairly large injectors, around 440cc/min, i am concerned about fouling the plugs on start up. Also, am i right in assuming sequential would be more fuel efficient, as only the correct injector is being fired, rather than in pairs, with one shot of fuel going to waste.It may sound a silly thing, but as my car has a 14 litre fuel tank, i would rather not be filling up every 5 laps!!

Regards,
Steve

[sequential]

Steve batch with 440cc inj is not a problem , you would need much larger than this to be full sequential all the time! at full throttle race conditions
you will need x amt of fuel to keep the engine happy anyway. in your short sprint races not sure how much benifit you will see. We run sequential to make number 4 happy.
_________________
928 gts prototype
baby blue engine block
steam in 1,2,3,4 sometimes
cold star issues while on stands
112 whp with new 4 valve head and MIS 2