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Retard motor for NOS- HELP PLEASE

07GTS

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ethanol tables are triggered by frequency which then relates to the corresponding tables, also needs error codes/tests enabled to work so if it wasnt setup right it would cause codes and default situations, would be way easier to use the IAT sensor if its downstream from the shot to cool it or trigger a resistance value when nos is on which takes the place of existing IAT value then use the iat spark retard table to do what ever u want with the timing in that set temp row
 

1978vcar

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I have not got a clue as seen 2 types of jets listed 1 square and 1 spread online somewhere and why ask.
so downsize all jets as per instructions... done sorted.
0.038 is size n2o jet? plus matched size fuel jet.
is about 50hp does this sound correct for the type of system installing? ( I look up online fuel /jet sets and am making sure is right before I buy).
is running Holley 650 vac secondaries and has plate etc in the kit to suit holley carb so am presuming all match.
motor already retarded 3 degrees told buy builders when built( sports tech NSW by Milad Georges and Ivan Walker back in the day)
only add MSD and blue print since same cam etc.
any help would be greatly appreciated.
 

Immortality

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Spread bore and square bore refers to the carb base plate bolting pattern.

Yet sizes in those kits are generic so it's hard to give exact data on what HP they will produce.

When you say retarded 3 degrees, are they talking about the distributor or the cam timing?
 

1978vcar

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originally distributor until install msd
as they had me take dizzy to some specialist joint and they match to cam specs( I was goffering on build)
when the engine first built.
is jet size in ball park of 50 under 100 roughly?
 

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There’s plenty of cars with a retard function
 

Skylarking

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There’s plenty of cars with a retard function
I see them on the road every day…. controlled by the retard behind the steering wheel :eek:
 

1978vcar

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who is the retarded one me or my motor?
as said above about dizzy and cam when 1st built and when timing done originally was stroblighted
-3 on strobe/ on block gage and told to set as retarded-3 as old dizzy and dizzy retarded and to suit
now have put a billet pro MSD dizzy in the car and told by mech up here is same as before he just matched MSD to some specs( over my head stuff graphs i don't know, to cam)
now I don't know this mech too well so i am asking as the motor not running yet(in the hole.. but bench-tested I heard running and sounded the same I would strobe it again myself but have to connect up. etc and not ready for it yet.
can you do as mech say with a MSD and car back at -3 timing?
I got no F@#ing clue hear and some advice would be greatly appreciated
 

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It seems very odd that the distributor base timing is set at -3 but we probably need to confirm that you mean 3° BTDC?

If indeed the normal base timing is 3° BTDC and you wanted to run a 50 shot of nitrous than ideally you should retard the timing 2°. Now a simple way to do that would be to time the dizzy in at 1° BTDC. Retarding the distributor isn't the ideal way to do it however as that will effect starting and how it runs.
 

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motor built for 125 shot but never put on as smash gearboxes already back then so not instal kit then.
until know.
always a mongrel to start cold got to feather to get idle
 
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