injector size?
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Stage IV
Joined: Sep 2021
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From: CA
injector size?
What size injectors should i use???????????
I've got an 88 with a 103 stroker crank, 106 big bore kit, 10.66 compression, Dave Mackie heads, 584 rocket cams. in upgrading to a HPI 51mm throttle body and unsure what size injectors i should run?.......the bike made 110 h.p. with the stock 44mm throttle body and stock injectors.
I've got an 88 with a 103 stroker crank, 106 big bore kit, 10.66 compression, Dave Mackie heads, 584 rocket cams. in upgrading to a HPI 51mm throttle body and unsure what size injectors i should run?.......the bike made 110 h.p. with the stock 44mm throttle body and stock injectors.
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,614
Likes: 6,440
From: Honah Lee
Interesting post. I do a lot of rebuilds and don't just throw new parts just to be doing it. So I always clean injections, do a leak down and spray. I figured there better then some aftermarket from AutoZone. And even there are pretty expensive.
It appears to me no matter the size of engine with in what I have worked on, they all were capable of drowning a engine.
Doesn't the ECM control on and off? They work from idle to WOT.
I do know they are very small however on a Harley.
Welcome from North Beach, FL., USA!
Just in case you have not done both of these two important items!
Be sure to add an Avatar of your favorite shot in the USER set up for the small picture others will see in the top left corner of your post with your USER name.
And most importantly a Signature Line in your USER set up for your bike model, year, and all the letters that Harley recognizes it with that others see at the bottom.
This enables others to know your exact model if you ever ask a question or another member interested in it may ask you a question about it.
Your all set.... Enjoy the ride! ______________
It appears to me no matter the size of engine with in what I have worked on, they all were capable of drowning a engine.
Doesn't the ECM control on and off? They work from idle to WOT.
I do know they are very small however on a Harley.
Welcome from North Beach, FL., USA!
Just in case you have not done both of these two important items!
Be sure to add an Avatar of your favorite shot in the USER set up for the small picture others will see in the top left corner of your post with your USER name.
And most importantly a Signature Line in your USER set up for your bike model, year, and all the letters that Harley recognizes it with that others see at the bottom.
This enables others to know your exact model if you ever ask a question or another member interested in it may ask you a question about it.
Your all set.... Enjoy the ride! ______________
Last edited by Jackie Paper; Sep 14, 2021 at 01:17 PM.
Seasoned HDF Member
Joined: Dec 2010
Posts: 6,849
Likes: 1,389
From: Florida
Originally Posted by RIPSAW
Interesting post. I do a lot of rebuilds and don't just throw new parts just to be doing it. So I always clean injections, do a leak down and spray. I figured there better then some aftermarket from AutoZone. And even there are pretty expensive.
It appears to me no matter the size of engine with in what I have worked on, they all were capable of drowning a engine.
Doesn't the ECM control on and off? They work from idle to WOT.
I do know they are very small however on a Harley.
It appears to me no matter the size of engine with in what I have worked on, they all were capable of drowning a engine.
Doesn't the ECM control on and off? They work from idle to WOT.
I do know they are very small however on a Harley.
As far as the OP. Call HPI and ask them. They will tell you.
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