A few questions about fuel injectors and a know problem...

1. I want to replace the injectors i have my motor apart to the block (or housing for the picky people) intake off etc. installing a header and other stuff
any way so want install new injectors wile i have it apart i dont want to go crazy so i was thinking about installing 750cc. To much ? to little? the brand i want is RC price is around $350.00 any input would be great

2. There is a know problem as I was told by a friend.. at 3500 to 3800 rpm when the 2nd set of injectors "kick-in" there is a hesitation caused by a ground cable does anyone know what ground cable it is or maybe just go at this point and clean them all
or
could i make my grounding system from different spots of the motor to battery ground

Big thanks for any input

 

Your profile says you have an '88 convertible, so assuming it's still NA, you do not need bigger injectors. Larger injectors would mean WAY too much fuel and a huge loss in power/driveability. Bigger injectors are for modified cars that have large increases in airflow (turbo, porting, N2O).

For your second question, search '3800 hesitation' and check here: http://www.aaroncake.net/rx-7/grounding.htm.

 

all the stuff you think would help... Thanks for the info

 

clean out your ground posts and terminals. and your original injectors might need cleaning.

 

I have most of the motor apart i was planing to clean grounds i got i great link on arron cakes site all about grounds

BIG thinks for all the input!!!

how should i go about cleaning the old injectors?

 

Best way is to have them professionally cleaned. You can send them off to someone like CruzinPerformance.com and have them cleaned, tested and all the O-rings replaced.