Question about manifold intake

[Tonyyyyy]

hello guys

I have a gt 2020model 10speed automatic.
I have long tube headers xforce,roush air filter,custom xpipe,custom agressive ecu on engine, ecu on transmission, the car is full cat delete.
Im thinking about bullit 2019 manifold intake.
I have read that the car will be more aggressive at high rpms, but i dont know if at low rpms will be slower than the stock manifold.
Any help please?
Thank you

Sponsored

 

[GregO]

Im thinking about bullit 2019 manifold intake.
I have read that the car will be more aggressive at high rpms, but i dont know if at low rpms will be slower than the stock manifold.

The low rpms power loss is mostly a myth. Yes published dyno graphs will show a very slight loss but real world driving the loss isn’t noticeable. The real challenge is finding a tuner who knows how to tune to the larger 87mm TB and retains functional CMCV.
You want even more upper power go bigger than the 87mm TB.

 

[WildHorse]

Another myth busted; I did a CMCV delete and I didn't lose any low-end at all.

 

[GregO]

Another myth busted; I did a CMCV delete and I didn't lose any low-end at all.

Was that delete on a GT350 manifold ?

 

[NGOT8R]

I locked out the IMRCs on my Bullitt intake manifold and can’t say that I noticed a difference in performance one way or the other. I did it to declutter the engine bay and gain easier access to my transmission upper mounting bolts. I did have to pay Lund an additional $150 to turn them off in the four tunes that they wrote for me.

 

[I Bleed Ford Blue]

Dyno tests have shown the gen 3 manifold is just as good as the GT350 manifold on the top end. As a matter of fact the gen 3 manifold is a popular upgrade for the gen 1 and 2 guys as it flows much better than the earlier manifolds. The cost to switch to a 350 manifold is not worth the squeeze. The better choice would be to get a ported gen 3 manifold, much easier to tune for and cheaper in the long run. If you decide to also upgrade to a bigger throttle body, the standard gen 1, 2, and 3 manifolds use an 80mm TB with a square mounting flange. Popular upgrades are an 85 and a 90mm TB and they are a straight bolt on. The GT350 manifold uses an 87 mm but the mounting flange is slightly rectangle and requires an adapter plate to use on a standard manifold. There is also the 92mm from the GT500 and it also is a rectangle mount. The 87-92mm can be tricky to tune for so if you're staying with a ported gen 3 manifold, just stick with an 85 or 90. Honestly, a bigger TB is worthless on today's modern engines in stock form. Back in the days of the old pushrod 5.0 they came with a puny 55mm TB and were seriously choked off so a simple TB upgrade actually showed an improvement. Best bang for the buck would be a ported gen 3 manifold and have it tuned for it, skip the TB upgrade.

 

[EFI]

If you plan on revving to 8000+ the GT350 manifold will carry power better than the 2018 one. But if you keep it at or under the 7500rpm limit you won't notice much in power gains.

At the same time, with your 10 speed and it's tight gearing you probably won't also notice the slight loss in power under the curve.

So what I'm saying is it's not really worth it for the cost and minimal gains.

 

[GregO]

We’ve been down this road many times in the past.
Member KellTrac proved the Manifold and up to 95mm TB beats the Gen3 manifold with 87mm TB.
The proof is there, Gen3 manifold inlet aperture is the choke. (Wengerd validated)
EFI is on point, the power band is flat and stays flat past 8000 rpm’s.
The larger TB isn’t so much about HP as it is about lower E.T. (rate of engine acceleration either from the dig or between shift points)

 

[WildHorse]

We’ve been down this road many times in the past.
Member KellTrac proved the Manifold and up to 95mm TB beats the Gen3 manifold with 87mm TB.
The proof is there, Gen3 manifold inlet aperture is the choke. (Wengerd validated)
EFI is on point, the power band is flat and stays flat past 8000 rpm’s.
The larger TB isn’t so much about HP as it is about lower E.T. (rate of engine acceleration either from the dig or between shift points)

I dont buy that choke point at all. 95mm TB will always beat a 87mm TB. That's what's making the power. GEN 3 intakes drop off after 7500 rpm, not cause of the intake, but in my application it's the cams. I can put in a set of L&M cams and make power to 9k with my gen3 intake.

Was that delete on a GT350 manifold ?

Nope. Just a gen 3.

 

[GregO]

I dont buy that choke point at all.

Ok

 

[BlackhawkMustang]

hello guys

I have a gt 2020model 10speed automatic.
I have long tube headers xforce,roush air filter,custom xpipe,custom agressive ecu on engine, ecu on transmission, the car is full cat delete.
Im thinking about bullit 2019 manifold intake.
I have read that the car will be more aggressive at high rpms, but i dont know if at low rpms will be slower than the stock manifold.
Any help please?
Thank you

You have almost the same set up I have! All the research I've done indicates the ported intake manifold adds no HP. And it sounds like the ported larger throttle body adds 5-7 HP but makes re-tuning the vehicle a bitch (at least for Lund Racing?)
It seems like the best upgrade of HP would be the E85 fuel system but I need to research that further (how to do it right.)
I left the factory "active exhaust" on so I can quiet it down if needed. I wish I could get a little deeper-throat-ier sound... have you messed with anything different from an exhaust perspective?

Sponsored