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ok, i was looking at the pics of his swap and i started to think. this might sound stupid but her goes nothing. ok first off he is using the intake from a 2.8 right? ok with that siad it looks to me like it would flow alot better than our POS that sits on top of our 3.4, so has any one ever used that one before? and will it be more restrictive cuz it came off of a 2.8 or ist it possible that this could be a great thing? this is just a thought, so if anyone knows any thing or has any thoughts throw them in here please. if this makes no sence or just plan will not work just say so.
hmm... thats a good point, f it does, I am going to be pissed that I gave my stock 2.8l intake to someone to take to the junkyard. [img]smile.gif[/img]
if I could use the 3.4 intake I would. wait, let me see if the throttle body from the 2.8 will fit the opening of the 3.4. nevermind, forgot. that rear crossover on the 3.4 will not clear the distributor [img]graemlins/bs.gif[/img] . You could think of it this way: (providing the throtle bbody swap works) on the tpi intake, the runners are relatively long & "tuned" for low & mid range torque & hp. If you look at accels & other aftermarket intake replacements for tpi, the runners are shorter, "tuned" for higher rpm operations.air has a shorter distance to travel & will go there faster. If you want to try it, go for it. Not shure if it will clear 4th gen hoods though
1978 Formula 461 in progress of being built :rock:
2013 Ram 1500 Big Horn
former owner of 85 bird w/ 2.8 - 3.4 - 3800 II - 5.0
94 comero 3.4
if we can open the door to a new resorce. re. using an aftermarket 2.8 intake that could possible flow better and what not. that would be worth a new hood. but the thing is will this work. we need more info.
maybe aftermarket ram air/ws6 hood would clear. I don't have the digicam with me, when I do, I'll take pics of the intakes sitting beside each other to show heighth difference. Also what they look like in the bird [img]smile.gif[/img] If I had known about this thread before saterday, I would've brought the intake up w/me to Medina for some pics. I think the highth diff is about 3-4inches. may clear hood, may interfer with stb. ?
1978 Formula 461 in progress of being built :rock:
2013 Ram 1500 Big Horn
former owner of 85 bird w/ 2.8 - 3.4 - 3800 II - 5.0
94 comero 3.4
more importantly, hte 2.8L intake comes off in 2 pieces, you could probable port it out more easily then a stock one. hmm.. mabe we shouyld tell supersix abotu this to see if they can get some numbers on it.
the biggest problem with that idea is the upper manifold itself. You can port by the tb area, but you need a bigger tb to get the gains.the runners are relatively easy from the bottom, but even w/the flex adaptor, you can only get in so far. I would think this idea would be best for the upper(top) manifold
just replace 3.4 with 2.8/3.1
gotta love those crossover threads ;)
[ August 01, 2002: Message edited by: 3.4 slow to go ]</p>
1978 Formula 461 in progress of being built :rock:
2013 Ram 1500 Big Horn
former owner of 85 bird w/ 2.8 - 3.4 - 3800 II - 5.0
94 comero 3.4
3.4 keep us updated on the swap and let us know how it goes. you could have stumbled on somthing with your swap. i hope so i hope so i hope so. [img]graemlins/burnout.gif[/img]
putting a 2.8L intake (upper/center) on your 3.4 would be worthless.
the runners on the 2.8 are the same length as on the 3.4 the only difference between the 2.8 and the 3.4 is the air chamber on the top.
AND
one of the things you have to worry about is clearance. take a look at a 3.4L intake manifold (upper), if you look really carefully you will see that it dips down in the very back, thats cause it follows the contour of the top of the engine bay.
go ahead -- reach up under the cowl where the rest of your engine sits and feel the metal, you will notice a slight drop in the structure of it. i dont think a 2.8L intake manifold (top) will clear that.
i honestly think you would be better off just porting the stock 3.4L intake
cut it open or something and polish it and then weld it together, or send it here: http://www.extrudehone.com
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