I'll message you.

 

ah,I see. Yeah I was disappointed I didn’t hold out TIL 2018 before I bought my 2017 until I heard all the problems 18 and up 5.0s were having. Sorry to hear you were one of them.
you say the lock outs are a sham and not needed? Just curious if upgraded to a 2018 mani if I have to do this or not. A company offers ported 18 truck manifolds,but with lockouts.

 

You don’t need the lockouts. Zip ties hold up fine or you can make your own really easy.

 

Wouldn't lock out a bolt-on truck anyways. You'd lose low end and mid range throttle response.

 

Do you have a GT manifold?

 

yeah that’s a hard no on low and midrange thanks. So basically all A guy would have to do is swap in the 18 intake and datalog for the tuner. So I guess there’s no way to tell if there would be gains down low and mid range until someone takes the plunge. No real world data out there as far as I can tell. In fact,from your post it almost sounds like it would hurt performance in that range with or without lockouts.

 

Or, if you leave the vacuum actuators disconnected they are spring loaded open.....No zip ties or anything else required. Not sure why that myth permeates the internet.

 

I did not say you lose mid/low end at wot, they're wide open at wot.

I'm talking about partial throttle in the mid/low end area.

 

The MGIM mani loses power pretty much everywhere below 4K, *****EDIT - on the 2nd gen truck***and doesn't make more until well clear of 5K rp, vs the 2nd gen truck mani. It's a high revving short runner manifold, that's what they do. I hated the way I lost the midrange hit from the stock mani

If I had to guess / offer an opinion, the 2018 truck mani would likely be a toss up, it has longer runners, but they are quite large, so there is a loss of velocity. Just my opinion on the latter, the former is fact, to what degree is the only debate.

 

Well it's honestly unquestionable, most 18+ 5.0 trucks pick up 3 mph in the 1/4 and 3 to 4 tenths going to an 18 GT manifold. The manifold definitely is better if you're out running the thing lol.