Ported exhaust manifolds?

[luigisho]

Go on that magic carpet ride you keep talking about.

You figured it out. I'm actually John Kay.

 

[SM105K]

You figured it out. I'm actually John Kay.

I knew it!

 

[802SHO]

Hahaha! Good song too

 

[Johnbigdog]

77 ford LTD Landau 2 door. Black with red interior. I thought it was pretty darn sharp.

 

[802SHO]

77 ford LTD Landau 2 door. Black with red interior. I thought it was pretty darn sharp.

I think he meant the red carpet interior...at least I think that's what he meant. I love red interiors as well...im not a big fan of everything red though, dash, complete doors, I think that's tacky.

 

[Autox4fun]

So my heads came off and I was able to review the manifolds for cracking - after 10k miles.
None. notta. zip. zero.
FYI friends

 

[802SHO]

Got my ported and thermal coated 13+ Exhaust Manifolds from Max Power Automotive yesterday to replace my 2010 manifolds. Wow!

 

[bpd1151]

Golly gosh gee whizz those sure do look mighty purdy.

Glad to see you and others making use of my builder!

Max powahhhhhhhh for sure!

Sent from my SM-N950U using Tapatalk

 

[Autox4fun]

They do nice work

 

[802SHO]

Golly gosh gee whizz those sure do look mighty purdy.

Glad to see you and others making use of my builder!

Max powahhhhhhhh for sure!

Sent from my SM-N950U using Tapatalk

So glad you unknowingly steered me in the right direction! Following suit has yet to steer me off path

 

[SledDriver]

Anyone ever confirm if this was able to give a better power curve?

Years ago I was following some porting of stock exhaust manifolds on the GM LSx series. I swapped a 4.8L iron block into my GTO.

It was pretty easy to custom turbo that motor because we could just flip the manifolds and there was so much room in the goat bay.

However, if I recall correctly, porting the exhaust manifolds showed no real difference power gains or in the power curve, in which is why I had opted to just coat them and stay stock.

I don't plan on building this motor any time soon, but if I can go faster within my capped powerband, I will spend on that.

 

[802SHO]

I think it’s worth it. I never dynoed it but was able to get a couple 3.1 second 0-60.

So far I don’t think anyone has beat that and I happened to have those ported and thermal coated 13+ exhaust manifolds. Coincidence? Maybe? I’d do it all over again if I didn’t have it done. I believe increasing air, fuel will always equal better performance no matter what.

 

[SM105K]

I think it’s worth it. I never dynoed it but was able to get a couple 3.1 second 0-60. View attachment 85224

So far I don’t think anyone has beat that and I happened to have those ported and thermal coated 13+ exhaust manifolds. Coincidence? Maybe? I’d do it all over again if I didn’t have it done. I believe increasing air, fuel will always equal better performance no matter what.

Until the stock cams can't flow it. Hehehe.

 

[SledDriver]

I think it’s worth it. I never dynoed it but was able to get a couple 3.1 second 0-60. View attachment 85224

So far I don’t think anyone has beat that and I happened to have those ported and thermal coated 13+ exhaust manifolds. Coincidence? Maybe? I’d do it all over again if I didn’t have it done. I believe increasing air, fuel will always equal better performance no matter what.

That's Hellcat fast...

What were your other modifications at the time of this?

I've ported my own heads in the past. I built my own flow test bench as well. I had a book that showed me how to build one using a vacuum. Worked really well.

Maybe I should pull out my old port and polish kit. I do have a cracked LS head I can practice on to get back up to par.

 

[802SHO]

That's Hellcat fast...

What were your other modifications at the time of this?

I've ported my own heads in the past. I built my own flow test bench as well. I had a book that showed me how to build one using a vacuum. Worked really well.

Maybe I should pull out my old port and polish kit. I do have a cracked LS head I can practice on to get back up to par.

I had everything in my signature (sigs are viewable on desktop format) and it’s hard to know what every part did but it’s the combined performance of everything that adds up. It had to of helped. Max Performance Automotive did the porting and thermal coating, I also ported the hot side of the GH Gen3 turbos and port matched to the turbo gasket. He believed it should be good for 25-30hp. My guess would be a low end improvement.

As far as HellCat fast, our top end is weak so with a slightly better top end I should have been able to hit multiple high 10 second passes but the car would only back half like 23-25mph. That’s pretty sad lol! I mean this is a 19 psi E40 tune, so maybe I should have gone 20-21 psi. But the 1/8 looks stellar …..then she fell off big time. Like she pulled a hamstring lol

 

[bpd1151]

Laughed at this ------->

"Like she pulled a hamstring lol".

I'm confident you'll get there Andrew!

Sent from my SM-N986U1 using Tapatalk

 

[SM105K]

If you are using a internet browser on a mobile device, turn your screen sideways and that allows you to view signatures.

 

[SledDriver]

If you are using a internet browser on a mobile device, turn your screen sideways and that allows you to view signatures.

Got it.... I'll never catch up to that sig unless I decide to turn this car into a track queen

Queen Bertha ... not a bad ring to it

 

[SledDriver]

I had everything in my signature (sigs are viewable on desktop format) and it’s hard to know what every part did but it’s the combined performance of everything that adds up. It had to of helped. Max Performance Automotive did the porting and thermal coating, I also ported the hot side of the GH Gen3 turbos and port matched to the turbo gasket. He believed it should be good for 25-30hp. My guess would be a low end improvement.

As far as HellCat fast, our top end is weak so with a slightly better top end I should have been able to hit multiple high 10 second passes but the car would only back half like 23-25mph. That’s pretty sad lol! I mean this is a 19 psi E40 tune, so maybe I should have gone 20-21 psi. But the 1/8 looks stellar …..then she fell off big time. Like she pulled a hamstring lol View attachment 85226
View attachment 85227

Yeah it was mainly the 0-60 & 1/8th numbers. I would assume that the SHO is more forgiving than the HC when it comes to driver mod thanks to the AWD.

I think this is definitely something I can do. It really doesn't seem that bad at all.

 

[SM105K]

Yeah it was mainly the 0-60 & 1/8th numbers. I would assume that the SHO is more forgiving than the HC when it comes to driver mod thanks to the AWD.

I think this is definitely something I can do. It really doesn't seem that bad at all.

On the street, I fear no HC's from a dig in the SHO. From a roll, it is a different story....unless I am in the Lexus. The tables turn rather quickly back to my favor.