ffilemyr

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

RotaryRocket88

iTrader: (7)

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.

ffilemyr

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

JZA80turbo

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

ffilemyr

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?

Go48

iTrader: (7)

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.