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ramnher 03-30-2013 01:18 AM

4.7 direct port nitrous
Is there anyone running a direct port system on there 4.7? If I changed my intake to a aluminum one and ran direct port how much of spray per cylinder could u get away with on the new gen engine?? I know I'd have to pull timing and get a Colder plugs, but what about bigger injectors for that set up? Never ran nitrous but I feel this would be the safest route.. Opinions please!

snrusnak 03-30-2013 10:08 PM

wow direct port is pretty involved. My buddy in Texas just sent me a video tongiht (member darknight) he just installed a nitrous setup on his 4.7L. It's not direct port though, I think it's a 75 shot...might be 100. It's pretty quick from what the video shows...

ramnher 03-31-2013 11:52 AM

Yea u talked to him about it a week ago or so.. Glad he got it done can't wait to see what he's running now! Do u have a link to it u can send me he told me he was gonna run a 100 shot.. But I figure direct port u could get a little more of a shot safely right? I heard 20 per cylinder but I don't know if that applys to our motors I'd hate to blow up lol

snrusnak 03-31-2013 08:19 PM

Yeah I don't think he'll care if I post it.

snrusnak 03-31-2013 08:22 PM

The 4.7L is a pretty strong engine. It has a 1 piece crankshaft girdle(no main caps). I'd say the bottom end will take just about anything your throw at it. I am not positive but I don't think the 4.7L has the thin top piston ring land issue the hemi has. So I'd say whatever the hemi guys are doing the 4.7L could do the same or more.

ramnher 03-31-2013 10:56 PM

I can't seem to get to the video post just leads me to photos..

S.C. Express 04-01-2013 04:39 AM

A properly set up wet kit will be just fine and give almost the same results. Chefred has been spraying 150 shot Zex wet kit and his engine has over 230K miles.

Darkknight3829 04-01-2013 12:31 PM

I don't mind at all Sean lol.. My 4.7 is running strong on a 100 shot. Pulled the plugs and everything looks fine. I'm bumping my shot to a 150 pretty soon.
As for the direct port nitrous, I think you should just do the nozzle system through the CAI tube. But that's just my opinion. I'm loving my set-up

ramnher 04-09-2013 12:33 AM

Is yours a wet or dry shot threw the cai? And what brand is it? Also being a 75-100 shot we don't have to change plugs do we? The hemi's can run on the same plugs with that shot I've heard.. I'd just need to run my superchips 87 tune on 93 pump right darknight? He'll I may be way off ha never ran nitrous just going off others peoples word bro

ramnher 04-09-2013 12:36 AM

Also how much has your 1/8 and 1/4's changed man was it worth the effort? How's the tranny holding it

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