5.3 ls with a .93 nitrous jet tune ?? - Yellow Bullet Forums

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Old 06-03-2013, 10:18 PM   #1
1964 nova
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Default 5.3 ls with a .93 nitrous jet tune ??

have a stock shortblock 5.3 ls engine with mild ported stock heads , stock mls head gaskets but did get arp head studs , have a comp nitrous cam in it unsure of specs right now . my question is i have a msd 6010 box and edelbrock victor jr intake on it with a 750 dp carb havnt fired it yet but using my big shot plate from another motor with a .93 n20 jet and a .82 fuel jet @ 5psi used several times on conventional sbc no problems but ls stuff is 15 degree head i believe what would a good total timing number be ??? not how much to pull as i dont know what base is havnt run it yet but when the kit is on a safe total timing number to start with thanks for any input.
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Old 06-04-2013, 04:00 PM   #2
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Default Re: 5.3 ls with a .93 nitrous jet tune ??

There's really no info here that would allow anyone to answer the question.. Engine details are needed to better answer ANY timing questions.. Also, if you are starting out and do not know where to time the combo, a .093 is not a very forgiving starting point in my opinion.. Thanks, SJ
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Old 06-04-2013, 05:29 PM   #3
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Default Re: 5.3 ls with a .93 nitrous jet tune ??

I'm not saying what you should run but I'll tell you what I ran in my car. I had a stock 5.3 longblock, LS6 intake, MS3 cam (237/242, .603"/.609", 113 LSA), 1 7/8 longtubes, 3" exhaust, 3150lb race weight, EFI with E85. On motor I ran 28* of total timing, with a .078 jet I brought it down to 23*.
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Old 06-04-2013, 05:35 PM   #4
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Default Re: 5.3 ls with a .93 nitrous jet tune ??

Quote:
Originally Posted by 1964 nova View Post
have a stock shortblock 5.3 ls engine with mild ported stock heads , stock mls head gaskets but did get arp head studs , have a comp nitrous cam in it unsure of specs right now . my question is i have a msd 6010 box and edelbrock victor jr intake on it with a 750 dp carb havnt fired it yet but using my big shot plate from another motor with a .93 n20 jet and a .82 fuel jet @ 5psi used several times on conventional sbc no problems but ls stuff is 15 degree head i believe what would a good total timing number be ??? not how much to pull as i dont know what base is havnt run it yet but when the kit is on a safe total timing number to start with thanks for any input.
Please get it lined out on motor first before you scatter parts.
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