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Let's Chat About Fuel Injectors...

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4.9K views 9 replies 4 participants last post by  DJKlitz  
#1 · (Edited)
Went through the forums and did not see any specific to fuel injectors. I have some questions. Coming from Mustangs and Cobras, They make any flow size, no adapter clips needed, and they fit the fuel rails perfectly.

I am installing a JRSC and need to decide which injectors to order. I read many threads, but ended up more confused. People have different HP needs and thus the injector recommendation will not be the same for everyone.

With full intake and exhaust mods, I have learned the JRSC can make 300whp and even 320whp with a 3.0 pulley and methanol.

What injectors should I choose for 300whp? I have read the modified injectors have poor spray patterns. I read the RC650 are 30 year old technology and are too tall (need spacers for fuel rail). I have no idea at this point. Some threads are recommending 1000cc injectors, but that is for 400+whp turbo setups.

1. What are the choices for 300-320rwhp using a JRSC or CTSC?
2. Which are Honda based and do not need adapter clips (not very important, but would still like to know)?
3. POOR IDLE - Which injectors will not have the rough idle issues (injectors that flow too much overall and which ones do not like stock fuel pressure)?

Let's chat about fuel injectors. I would like to buy one set and avoid common issues related to improperly chosen injectors.
 
#6 ·
hey im selling a set of rc 650's i used on my jrsc kit for like 6,000 miles or so. they werent that bad and my injector duty cycles got to about 85%

only neg. i noticed about the injectors were the latencys like when the radiator fan kicked on the voltage would drop and u would notice the injectors not firing correctly but that was for a split second. then it would go back to normal. if you plan on just doing a jrsc install with the pulley that came with the blower and u dont plan on doing any other big power adders i dont c the rc's being that bad.

i recently changed to id725's n they r great injectors but i had to get completely retuned for them cuz the flashpro map only supports the 650's

either way is fine. i guess go for 650's if your on a budget and/or you dont plan on going much further than 300whp but if you want the most out of ur car i say upgrade to the id 725s