F150 mani on hwy

[Bluemustang]

Got it, so my thoughts of adding the f150 mani to give me more power in the powerband that I'm in most of the time would actually hold the car back and limit top end ability?

Yes it will hold back the top end with the F150 Manifold. By 6500 rpms it's done. A tune will add some low end torque if you think it is lacking. With a tune it should pull to 7K but after that it drops off considerably, which is why the better breathing 2018/GT350/Cobra Jet manifolds are popular modifications.

IMO if really want to have some fun... add a CAI, some 47lb injectors and get an E85 race tune. That will give your car some balls and pull to redline like a freight train. Then if you get used to the high revving and want a little more, you can add a ported 2018 manifold or something like that and it will pull even harder up top. The high rpm pull is addicting, try it!

Sponsored

 

[ForYourOwnGood]

Ah got ya, who did you go with for your tune? I had a bama tune years ago and did not like it. Thinking lund this time around.

I had the FRPP pack 1 and it was really good, have a Lund tune on the car now with the supercharger and it is awesome.

 

[DuRsT]

I don't think you would be happy moving from 3.15's to 3.55's.

I would suggest 3.73's at a minimum, I have them on my PP1 and could easily see moving to 4.10's.

 

[Ebm]

I don't think you would be happy moving from 3.15's to 3.55's.

I would suggest 3.73's at a minimum, I have them on my PP1 and could easily see moving to 4.10's.

I have 4.10s and think it's perfect. Now if 2nd gear would stop locking me out when I give it the beans in 1st...

 

[Mustang_Lou]

Nice! Do you ever notice the car feeling like it doesn't want to pull and accelerate anymore?

Absolutely not. It actually starts to really pull a thousand rpm sooner, so 3000 instead of 4000. You don't have to wait as long to get the oomph. Once you're over 6000 rpm a GT mani will pull stronger but over here, if you're caught going 50 km/h over the speed limit they'll impound your car and suspend your license on the spot so by 6000 rpm (depending on gear and speed of course) it's time to slow back down anyways.

 

[Dr. Norts]

No not at all, I think the longest pull I have is getting on the hwy ramp and getting up to 70 mph. Even when I'm doing spirited driving, I'm never above 6000rpm

That's like paying 2k for a high class hooker and just finger bangin' her.

 

[DuRsT]

I have 4.10s and think it's perfect. Now if 2nd gear would stop locking me out when I give it the beans in 1st...

Kind of what I figured. Given the low rpm's with the current 3.73's the final drive on the trans must be ridiculously high. I can't imagine how low rpm's the guys with 3.15's must be running on the highway in sixth.

 

[Bluemustang]

I must say it's sad to see so many Mustang GT owners that don't rev the engine past 5-6000 rpm. I rev mine out to 7800 routinely and it is glorious.
It's a high revving motor, people. It's not a high displacement push rod engine. Don't drive it like one. The way it builds power and revs so freely at high rpm - that's where the fun is at. If you don't even do that, at least once in awhile... you are completely missing out.

 

[Remy_reign]

Yes it will hold back the top end with the F150 Manifold. By 6500 rpms it's done. A tune will add some low end torque if you think it is lacking. With a tune it should pull to 7K but after that it drops off considerably, which is why the better breathing 2018/GT350/Cobra Jet manifolds are popular modifications.

IMO if really want to have some fun... add a CAI, some 47lb injectors and get an E85 race tune. That will give your car some balls and pull to redline like a freight train. Then if you get used to the high revving and want a little more, you can add a ported 2018 manifold or something like that and it will pull even harder up top. The high rpm pull is addicting, try it!

So with a tune I could pull to about 7k? That actually isn't bad. By that time I'm sure I'd be slowing down. In my city it's really not much time to use the power. 90% of the time its light to light. Every once and a while on a beach trip I'd get to do a good pull close to 6 or 7k but never above that. It's always time to tap those breaks by then. And I'll have to check on the aE85 thing, I dont think we have many stations carrying that.

I had the FRPP pack 1 and it was really good, have a Lund tune on the car now with the supercharger and it is awesome.

Yeah I was so close to going procharger, I just didnt like the sound it made.

I don't think you would be happy moving from 3.15's to 3.55's.

I would suggest 3.73's at a minimum, I have them on my PP1 and could easily see moving to 4.10's.

3.73s were always my ideal fear when I have a v6
But me with a gt and being auto makes me believe the jump to 3.55s would be better.
Wouldn't the 3.73s get me to high rpms faster?

I have 4.10s and think it's perfect. Now if 2nd gear would stop locking me out when I give it the beans in 1st...

Lol I hear you

Absolutely not. It actually starts to really pull a thousand rpm sooner, so 3000 instead of 4000. You don't have to wait as long to get the oomph. Once you're over 6000 rpm a GT mani will pull stronger but over here, if you're caught going 50 km/h over the speed limit they'll impound your car and suspend your license on the spot so by 6000 rpm (depending on gear and speed of course) it's time to slow back down anyways.

Lol yeah that's my thoughts, how do you do on highway pulls when you get a chance to rev a bit higher?

 

[Remy_reign]

I must say it's sad to see so many Mustang GT owners that don't rev the engine past 5-6000 rpm. I rev mine out to 7800 routinely and it is glorious.
It's a high revving motor, people. It's not a high displacement push rod engine. Don't drive it like one. The way it builds power and revs so freely at high rpm - that's where the fun is at. If you don't even do that, at least once in awhile... you are completely missing out.

Lol I hear you man, idk if ita just the 3.15s or what but by the time I'm up in rpms it's time to slow down and has taken a bit of time to get up in rpms.

 

[Bluemustang]

So with a tune I could pull to about 7k? That actually isn't bad. By that time I'm sure I'd be slowing down. In my city it's really not much time to use the power. 90% of the time its light to light. Every once and a while on a beach trip I'd get to do a good pull close to 6 or 7k but never above that. It's always time to tap those breaks by then. And I'll have to check on the aE85 thing, I dont think we have many stations carrying that.

Yes, it will. And a tune will raise your redline. The MotoIQ article from way back that did a breakfown of the Ford Performance PP1, PP2 and PP3 tunes - it showed that even the PP1 or PP2, which is just a tune only or tune and CAI/TB, benefited from revving to a bit past 7K because it gives the engine more power under the curve and by the time you shift to the next gear - you're right in the powerband again.

Honestly I think for what you're doing, keeping the stock manifold and getting a Lund 93 tune is just right for you. You won't regret it.

 

[Bluemustang]

Lol I hear you man, idk if ita just the 3.15s or what but by the time I'm up in rpms it's time to slow down and has taken a bit of time to get up in rpms.

Part of it is the 3.15s yeah. And especially in 2nd gear because it is very long. I know what you mean, I have the 3.15s as well LOL. But hey a short 1st and 2nd gear blast now and again.. who can say no to that?

 

[DuRsT]

Sounds like you live in the city, IMO I would go with as high (numerically) a gear as you're comfortable with.

Unless you're afraid of acceleration. And big smiles.

 

[Bluemustang]

Sounds like you live in the city, IMO I would go with as high (numerically) a gear as you're comfortable with.

Unless you're afraid of acceleration. And big smiles.

I tend to agree with this. At least 3.55s maybe 3.73s. I'm planning to do 3.55s myself.

 

[DuRsT]

Personally I would forget the intake and get the gear swap done.

You won't be making any additional HP with a gear swap but the driving experience is radically altered in a way the intake can't touch in my experience.

Sponsored