injectors questions

[ray666]

okay i have a jgy fuel rail with top feed msd injectors. my question is, i'm wanting to get a set of greddy top feeds but are all top feeds are compatible?

these are what i have: http://www.jegs.com/i/MSD-Ignition/121/2100/10002/-1

these are what i want: http://www.frsport.com/GReddy-13500055- ... _2240.html

[CRyan]

Did the fuel rail come with the MSD injectors?

I would say just give GReddy OR FRsport a call. They have great customer service with both companies, and I'm sure as fast as you can get their number, it'll be quicker than waiting on the reply on here.

[PyR0NiAk]

I'm pretty sure they will fit, but I'd still give FRS a call. 714-515-4001

[DeatschWerks]

The Greddy injectors you have linked list them as low-impedance injectors. If you decide to run those, you need to wire in resistors.

From looking at the picture of the MSD injector, it looks like our KA24E injectors might fit and they are high-impedance so you wouldn't have to mess with the resistors. This is not something we deal with often, but if you'd like to PM me we can take some measurements and go from there.

[ray666]

thx! the msd injectors are low impedence as well and i don't really want to go back to highs unless i really need to.

[ray666]

i went on your website and the universal domestic 4cyl look very simliar to the msd ones i have. what parts of the injector would you like me to measure?

[CRyan]

Deatschworks, could you email me at [email protected] please, I had a few questions about some of your product.

Thanks!

[DeatschWerks]

Sorry about the delay guys, I missed my notification on these posts.

I need to know the diameter of the fuel rail side of the injector and the distance from top o-ring to bottom o-ring/seal.

[CRyan]

You have PM's disabled, and I changed my email between that time and now. My email is [email protected]. .. Thanks!

[ray666]

update,i went to my local shop and they said my injectors were to big. so i ordered 525 highs and ditched the resistor box and all is well. just doing some final tuning now.