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Should I upgrade injectors for retune?

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Old Oct 25, 2007 | 12:06 AM
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Default Should I upgrade injectors for retune?

Hey guys I have a LS1 that was out of my Z28 and put it in a RX7 and I was wondering if I should upgrade my injectors? Here are my mods

Long Tube Headers 1 3/4 to 3" exhaust free flowing
Ported Stock Throttle body, Thinking about porting my maf
Ram Air intake
TSP Torquer v2 Cam 232/234 .595/.598 with 112lsa
Twin Sprocket Timing Chain
LS6 Ported oil pump
4.10 gearing & Aluminum Drive shaft (not sure if it makes a difference)

I am sending my pcm to pcmforless to get tuned and was wondering if I should get larger injectors before I send it off to get tuned. I was thinking somthing around 32lb or the ford SVO 30lb=36lb for chevy? Also what kind of power should I be expecting with this setup.

TIA
Tony
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Old Oct 25, 2007 | 12:45 AM
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From: Leon Iowa
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I would say yes because I have about the same mods as you and I was running at 97% duty cycle on the stock injectors
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Old Oct 25, 2007 | 01:17 AM
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I have a 232/238 .595/.605 112LSA XE-R cam and running the SVO 30 injectors and they are running at 80%...
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Old Oct 25, 2007 | 06:23 PM
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thanks im getting the ford 30# injectors and what kind of power do you guys think I will be getting?
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Old Oct 25, 2007 | 08:10 PM
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yeah i would
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Old Oct 25, 2007 | 08:52 PM
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It cant hurt to upgrade the injectors as you will be reaching the limits of the stock ones. I would think you should be around 400rwhp. You might want to upgrade to an LS6 intake if your motor isn't out of an 01-02 Z28.
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Old Oct 25, 2007 | 08:59 PM
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I almost forgot. Dont port the MAF. The stock MAF isnt a restriction until over 500rwhp. Porting it can cause more harm than good.
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