Ram Jett Intake
Thread Starter
|
Cruiser
Joined: Nov 2008
Posts: 139
Likes: 0
From: Beaver, OK. (No mans land)
Ram Jett Intake
Anybody familiar with the ram Jett intake manifolds? I purchased a box full of items and it had an ram jett intake in the box but I know nothing about it. All it has on it is Ram Jett with a letter S and usa this is all it says. I have searched the internet and come up with nothing. Any info you may have on this would be great.
Thread Starter
|
Cruiser
Joined: Nov 2008
Posts: 139
Likes: 0
From: Beaver, OK. (No mans land)
I have done that search and find alot for sale but really no info. I see where there are many different sizes depending on if you have a stroker or milled heads and not sure what i have as there is no part number. Would really like to know what i have before tearing into my bike to find it doesnt fit. I have had problems with my stock intake and would like to replace it with this intake and get rid of those rubber fittings.
HDF Community Team
Joined: Dec 2005
Posts: 5,374
Likes: 2,570
From: NC USA
Can't say I'm that "familiar" but... they were first introduced as a alternative to the rubber compliance fittings on the earlier Evos. In a way, they were the "edelbrock" for Harleys. Don't really do much for you and like aluminum intakes for V-8s they become "familiar" with whatever engine they're run on to the point using one with lots of miles on a different engine can result in intake leaks. I think they are some around still yet for strokers, but are otherwise becoming a dinosaur. Drag Specialties still had a few last time I checked...
Thread Starter
|
Cruiser
Joined: Nov 2008
Posts: 139
Likes: 0
From: Beaver, OK. (No mans land)
So if i'm understanding you correctly if you put one of these on a motor for several heat cycles the aluminium will take shape to the heads. So if this is correct and you ever pull your heads for any reason there is probably enough play that you wont get them back in the same spot and the manifold could be trouble. Im wanting to get away from the compliance fittings because I have had 2 instances where they started leaking within couple hundred miles of each change. I'm not for sure if this manifold I have ( ram Jett ) has ever been mounted up to an engine or not or if it will even fit and hate to tear down the manifold on there as it is not leaking now, Guess I will wait for the next time and check the fit then. Comments on the Ram Jett in your opinion try it or chunk it and look for the stock compliance manifold. Im thinking there not to good if knowbody uses them. Seams the only info I can find is Ram Jett Intake for sale LOL!
HDF Community Team
Joined: Dec 2005
Posts: 5,374
Likes: 2,570
From: NC USA
The factory compliance fittings were crap, but replacements hold up very well if installed correctly. And I mean no offense in saying that. Everything has to be loosely installed and fitted in a relaxed mode, then tightened for a leak-free fit. I ran that setup for 15 years without issues...
Post a photo if you get a chance.
Trending Topics
Thread Starter
|
Cruiser
Joined: Nov 2008
Posts: 139
Likes: 0
From: Beaver, OK. (No mans land)
What replacement are you running and are you talking rubber and flanges or just the rubber part. I noticed the first set of rubber gaskets that failed actualy (dried up) were a little larger then the ones I get from the dealer and it seams there is a 1/16 " gap bettween the manifold and head on each side and if I don't keep everything centered up it will actually push the gasket off the end. Is this correct or should my manifold be touching solid against each head. You want to see pic of the Ram Jett? The carb i'm running is HSR42 Mikuni
Thanks for the replies Todd
Thanks for the replies Todd
Last edited by ptcruiser; Apr 20, 2010 at 08:18 PM.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
The Best and Worst Harley-Davidson Moves of 2025
Verdad Gallardo
HDF Community Team
Joined: Dec 2005
Posts: 5,374
Likes: 2,570
From: NC USA
Oh, let us start over then... by compliance fittings I meant the rubber boots that bolted to the heads and were used with the butterfly carbs up until 1990 and from your last post, I'm assuming you're running the manifold for a CV style with flanges that are separate from the "Y" itself. (?). If this be the case, then yes, the manifold will sit away from the heads with the swedged rubber o-rings making up the difference. (hopefully)
You might try manifold o-rings from James Gaskets. Unless they've changed, they actually fit over the end of the manifold with a groove made into the rubber and were always too "fat" for my applications, but may be just the ticket for yours.
You might try manifold o-rings from James Gaskets. Unless they've changed, they actually fit over the end of the manifold with a groove made into the rubber and were always too "fat" for my applications, but may be just the ticket for yours.
Thread Starter
|
Cruiser
Joined: Nov 2008
Posts: 139
Likes: 0
From: Beaver, OK. (No mans land)
yes I am running the cv type manifold I will try the james gasket type if this happens again but not for sure they will be to big as I have enough trouble getting the stock rubber gaskets up under the flange but will give them a try. Thanks for all your knowledge.