LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

I need to upgrade injectors need part# and tuning info

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Old Apr 16, 2006 | 12:33 PM
  #1  
BlackScreaminMachine's Avatar
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From: Wolcott, CT
Question I need to upgrade injectors need part# and tuning info

I finally got a chance to speak with my tuner, the one who will be dyno tuning the car. He asked me what I was hoping/expecting to make to the rear. I said 390-400 and I have #30 injectors, he stated I needed #36's. I tend to agree, when running datamast my duty cycle on the injectors were in the 90% range. So I am going to get a set of #36 SVO's and sell my #30's. They only have 25k miles on them.

The only issue is I cannot for the life of me find the part number for either summit or jegs. If anyone knows it please post.

Also when buying a program like LT1edit. I notice with both there is different parts you can buy, im really unsure what I need.

I got a laptop, cable, datamaster, but what parts of the tuning program do I need. The master/editor program is 200, and 1 year updates... do people use these??

http://carputing.tripod.com/orderform.html
Old Apr 16, 2006 | 12:39 PM
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Honda Hunter's Avatar
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Re: I need to upgrade injectors need part# and tuning info

I got my injectors from Racetronix.
Old Apr 16, 2006 | 02:32 PM
  #3  
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Re: I need to upgrade injectors need part# and tuning info

Don't believe SVO makes a 36# they make a 38# and that won't hurt ya. When tuned they will/should change the duty cycle for the proper A/F ratio.
Old Apr 16, 2006 | 03:38 PM
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BlackScreaminMachine's Avatar
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Re: I need to upgrade injectors need part# and tuning info

whats the part number?? I saw racetronix makes a 37 and 38 as well.
Old Apr 16, 2006 | 04:01 PM
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Re: I need to upgrade injectors need part# and tuning info

Hey your duty cycle is %90 while your PSI is 43.5 (3 bar) right? If you raise the pressure to 58-60 (4 bar) duty cycle will decrease and you will be ok. These injectors are very safe to use with 4 bar pressure. You don't need to change them.
Old Apr 16, 2006 | 05:18 PM
  #6  
BlackScreaminMachine's Avatar
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Re: I need to upgrade injectors need part# and tuning info

they need to be changed, they are going to be changed, i need help with part numbers...
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