I ordered my plenum repair kit from hughes last week but now I am having second thoughts. I am thinking maybe I want to go all out and just get the hughes/edelbrock intake for $599. I will just mail back the plenum kit when it gets here.

Has anyone installed this? Is it easier/harder than the plenum repair kit? Looks like it would be easier but idk. Any thoughts/comments would be greatly appreciated.

 

Its a manifold swap. Only difference being, there is no plenum plate to replace.

Several members have them. Keep in mind, those manifolds are shorter runners, so, will be inclined to produce high end horsepower, at the expense of low end torque.....

 

hmm. Well I am really interested in buying a new intake manifold to fix my plenum instead of buying just a plenum kit. But I would rather have low-end torque than high end horsepower. What about the Mopar M1 intake manifold? would that be a better choice? And would that eliminate the plenum?

 

both will eliminate the plenum, the M1 will be worse for the low-end power, most FI air gap users say they dont lose that much lowend

 

Ok the Mopar m1, IF you don't have one don't tell people that it is worse than a F1. I make goobs of low end grunt and it really gets on the go at 1900 and up, throttle response is instant, top grade part. now if you have a stock motor yes you will loose some bottom end grunt, But I see you have a tune and some other parts so that would help, but no exhaust up grades, you can put all the air into it as you can but if it can't get out then you are wasting hp. Look at your tach wheres your motor running at for rpm when you are using it, I would say that at most time you are at 2000 and up.

 

the runners on the airgap aren't quite as big as the M1 and are a bit longer as well. Based on that and the smaller plenum area, it theoretically should have less loss of lowend than the M1. I didn't notice any low end loss, but I do have the appropriate supporting mods so I can't say for certain what it would do to a stock truck. I think at the minimum, you should replace the factory Cat with a highflow model, and quite possibly the muffler too. The stock dodge piping isn't really that bad for a mildly modded engine, with those two aforementioned parts as the biggest hamper. The cat is restrictive probably for longevity sake, while the big *** watercooler sized muffler is more of a driver satisfaction addition by the factory to keep the exhaust noise minimal. This is probably the loudest truck of the big 3 manufacturers.

 

Here is a dyno chart with a couple different manifolds. Please note that the kegger has much better bottom end, than any other manifold they tested.

 

ok so with both the airgap and the m1 i'm probably gonna notice some low end torque loss. especially on a mostly stock truck. most of my driving is around town on 30-45 mph roads. I do ZERO towing or plowing. even with the low end torque loss I should still feel a noticeable gain when I lay into it a little, right? like past 3500rpm's? plus the m1 is a alot cheaper than the airgap whats the reason for that?

I plan on doing the exhaust in the next couple months it's just i am fixing the plenum next week so I figured if im going to get the m1 or airgap i should do it now instead of installing the plenum kit as it will be useless if i get the intake.

 

ahh very helpful. based on that i think the m1 is out of the running. but it seems i should stay stock because i dont lay into the gas that much, but then again i like to sometimes and it would be nice to have the power when i want it. But is it worth the $600 or should i just get headers? hmm

 

I'd put the plate on(you can always sell it here), this way you can see what the difference is between that and the F1.