Ported Polished lower - extrude hone questions

[babbage]

I think I want this. Pauls High Performance sells the service (you supply parts) for $1200.00 -- I called extrude hone, and for a 2001 cobra lower it's $750.00 - (you supply the intake) Extrude hone says it's good for 20 HP which I know is exaggerated

Who has had it done, who did you use, how were the results. Is it a worthy mod? Also any gotchas for the intall? New gaskets I'm sure.

Thanks

edit:


The PHP Ported Intake Manifold is the best way to get 18-25 hp and trq plus extended RPM-range by 500-800 RPM. The lower plenum has polished and extrude-honed upper and lower runners; both long and short lengths. Includes hand-polished cover, spacer with both gaskets and longer bolts.


18-25 for a Marauder?

[musclemerc]

Babb's a honed intake and a P&P intake are two diffrent things. I would personally go with a P&P, more material is removed from the interior. PHP is expensive but there is a few options. Roy on mach1 (670.00)who has recently been in MM&FF magazine and was compared to the PHP intake and won hands down. The other is NA SVT he's a little cheaper (500.00) than Roy and also has a great reputation for P&P. They both offer a PSRI also and unlike the Naz man they reuse the stock bottom and tig it back into place.

The gaskets are reusable on our intake so no need to replace them.

[dohc324ci]

What merc said. I had my lower intake ported by MMR for 450.00 came out real nice. I called extrude hone and they where charging 650-700 IIRC. Good luck.

[Joe Walsh]

Either way you chose be aware that you might have to port match the heads to the newly ported lower intake.
I had my intake Extrude Honed and it came out looking great.
When I looked at the now larger extrude honed intake ports I realized that there would be a 'lip' where the intake bolted down to the OEM (smaller) sized ports in the heads.
This lip would cause a lot of turbulence when the flowing air hit and "tripped over it" as the air passed down into the heads.
I port matched my heads to the larger intake manifold ports which removed the protruding lip and provided a smooth, clean transition into the heads.

[babbage]

Either way you chose be aware that you might have to port match the heads to the newly ported lower intake.
I had my intake Extrude Honed and it came out looking great.
When I looked at the now larger extrude honed intake ports I realized that there would now be a 'lip' where the intake bolted down to the OEM (smaller) sized ports in the heads.
This lip would cause a lot of turbulence when the flowing air hit and "tripped over it" as the air passed down into the heads.
I port matched my heads to the larger intake manifold ports which removed the protruding lip and provided a smooth, clean transition into the heads.

You had to take the heads off and port match them? - I really don't want to take them off but can't think of a safe way to port match without getting metal in the head. yeah?

[Blackened300a]

You had to take the heads off and port match them? - I really don't want to take them off but can't think of a safe way to port match without getting metal in the head. yeah?

Someone here honed out their heads using a dremmel and stuffed rags in the ports. Personally I would be too paranoid to do this. Im still holding out to see what the spaz intake does on the dyno.

[babbage]

Babb's a honed intake and a P&P intake are two diffrent things. I would personally go with a P&P, more material is removed from the interior. PHP is expensive but there is a few options. Roy on mach1 (670.00)who has recently been in MM&FF magazine and was compared to the PHP intake and won hands down. The other is NA SVT he's a little cheaper (500.00) than Roy and also has a great reputation for P&P. They both offer a PSRI also and unlike the Naz man they reuse the stock bottom and tig it back into place.

The gaskets are reusable on our intake so no need to replace them.

Thanks for info. The extrude process ports and polishes in one step. It gets into places that hand porting can't easily reach. I don't really want to have to mess with port matching the heads however.

[musclemerc]

That was RacerX, he did use a rag for porting but he also removed the valves and springs before he was done


Someone here honed out their heads using a dremmel and stuffed rags in the ports. Personally I would be too paranoid to do this. Im still holding out to see what the spaz intake does on the dyno.

[Joe Walsh]

Someone here honed out their heads using a dremmel and stuffed rags in the ports. Personally I would be too paranoid to do this. Im still holding out to see what the spaz intake does on the dyno.

That would be me.

Two layers of blue masking tape, stuffed rags and a lot of careful vacuuming...followed by a thorough visual inspection with a tiny mirror.

I was not going to pull the heads on my freshly built longblock in order to port match the heads.

[babbage]

That would be me.

Two layers of blue masking tape, stuffed rags and a lot of careful vacuuming...followed by a thorough visual inspection with a tiny mirror.

I was not going to pull the heads on my freshly built longblock in order to port match the heads.

Hehe - I wouldn't want to pull heads either! What an ordeal. So tell me about the gasket - were the ports on the lower larger than the gasket or about the same size. I assume when you say port match you are matching to the gasket size.

I guess I could use rags and tape if I had to, but would prefer not to.

[Joe Walsh]

More of the removed material was on one side of the port vs. the other side.
IIRC it was the inside edge of the port, nearest the center of the engine.
I used the black plastic intake-to-head gasket as a template and matched it to the enlarged extrude honed ports.
I did have to remove and reshape a little bit of the plastic manifold gasket as well. The ports were bigger than the gasket's opening on one side.
Then I port matched the heads down about 3/4" so that it was a smooth clean transition into the head's intake port.

[babbage]

^^ cool. thanks for the info. So the extrude hone process really did remove quite a bit of material then huh? No hand porting was manually done to the unit that you did?

This is the place I was thinking of using: http://www.gethoned.com (http://www.gethoned.com/process.html)

[Joe Walsh]

^^ cool. thanks for the info. So the extrude hone process really did remove quite a bit of material then huh?
No hand porting was manually done to the unit that you did?

This is the place I was thinking of using: http://www.gethoned.com (http://www.gethoned.com/process.html)

It removed more than I expected in the ports, less material in the open plenum area.
No hand porting was done just the abrasive media was used.
It was smooth and shiney aluminum!

[Pops]

The ones Paul does also have hand porting done to them plus the extruded.

[CBT]

I think I want this. Pauls High Performance sells the service (you supply parts) for $1200.00 -- I called extrude hone, and for a 2001 cobra lower it's $750.00 - (you supply the intake) Extrude hone says it's good for 20 HP which I know is exaggerated

Who has had it done, who did you use, how were the results. Is it a worthy mod? Also any gotchas for the intall? New gaskets I'm sure.

Thanks

edit:



18-25 for a Marauder?

No one has answered this yet.

[musclemerc]

^^ Yes it is worth every penny. Look at the HP combination thread CBT everyone at the top had some intake work done

[massacre]

No one has answered this yet.


^^^ +1

Would be intersted to know this

[Joe Walsh]

No one has answered this yet.

I couldn't answer that because I installed the Extrude Honed intake manifold on a new, built engine....no before & after dyno results.

IIRC, It cost @ $700 for the Extrude Hone...not the cheapest nor the most cost effective 'mod'.
I figured with my new engine, I'd be moving a lot more air than an OEM engine, so I decided to have it done.

[CBT]

^^ Yes it is worth every penny. Look at the HP combination thread CBT everyone at the top had some intake work done

Cool. Don't believe I caught that thread.

[musclemerc]

Do a search... It was recently done. But ya, the intake is good from 15~25HP depending on other existing mods

[CBT]

Do a search... It was recently done. But ya, the intake is good from 15~25HP depending on other existing mods
I've got a spare upper and lower, never have the time to smooth them down, so every now and then I contemplate extrude honing/shortened runners/etc. etc.

[Blackened300a]

More air= more power so I guess it would be a nice improvment.

[musclemerc]

You will loose some TQ with the short runners but it will make more HP
check out the thread and look at Impalaslayer's number's with a PSRI
The guys that kept the stock runner length gained TQ and still made good HP numbers. Here's the thread:
http://www.mercurymarauder.net/forums/showthread.php?t=64672

Hopefully Babb's won't come after me for saying loose! LOL...


I've got a spare upper and lower, never have the time to smooth them down, so every now and then I contemplate extrude honing/shortened runners/etc. etc.

[Blackened300a]

You will loose some TQ with the short runners but it will make more HP
check out the thread and look at Impalaslayer's number's with a PSRI
The guys that kept the stock runner length gained TQ and still made good HP numbers. Here's the thread:
http://www.mercurymarauder.net/forums/showthread.php?t=64672

Hopefully Babb's won't come after me for saying loose! LOL...

Thanks for the mention on the list!!!!!!!! :argue::rolleyes:

[musclemerc]

I want your input fo sho. I know you've been working on getting her back, just remember to get me your number's whenever your done.

[Blackened300a]

I want your input fo sho. I know you've been working on getting her back, just remember to get me your number's whenever your done.

My mods and numbers are in my garage link in my sig. 293 rwhp 312 rwtq that was done before the spaz intake and emp waterpump.
I plan to break the 300 rwhp mark asap.

[RacerX]

That was RacerX, he did use a rag for porting but he also removed the valves and springs before he was done
Not I! I had the 04 Mach 1 heads I picked up in NJ before I even pulled my engine. (Just noticed Joe fessed up!)You really should remove heads to do that. There's a lot of aluminum dust that you can't see that won't get pulled out.

[babbage]

You will loose some TQ with the short runners but it will make more HP
check out the thread and look at Impalaslayer's number's with a leaking PSRI
The guys that kept the stock runner length gained TQ and still made good HP numbers. Here's the thread:
http://www.mercurymarauder.net/forums/showthread.php?t=64672

Hopefully Babb's won't come after me for saying loose! LOL...

Nope - shorter runners loose TQ for sure. The leaking welds I'm sure affected it a bit too.I think I'm gonna go the gethoned route - at some point. Got to find a nice lower to start with first.If anyone has MM track or dyno results (re:15-25) on a port polish lower I'd love to hear about it.

Thanks for all the info guys.

[dohc324ci]

Here is a pic of my MMR Ported Intake. Since I had my heads there too they port matched my intake. Good for 8-hp plus a couple more with the PHP Intake spacer 15 maybe....

http://www.mercurymarauder.net/forums/picture.php?albumid=78&pictureid=556

[FordNut]

I think I want this. Pauls High Performance sells the service (you supply parts) for $1200.00 -- I called extrude hone, and for a 2001 cobra lower it's $750.00 - (you supply the intake) Extrude hone says it's good for 20 HP which I know is exaggerated

Who has had it done, who did you use, how were the results. Is it a worthy mod? Also any gotchas for the intall? New gaskets I'm sure.

Thanks

edit:

18-25 for a Marauder?
Old gaskets can be reused. If money is no object and you are determined to squeeze every bit of power out of a NA car, go for it. It would probably be even more beneficial for a centrifugal blown car though. If you think going with a roots or twin screw may be a future mod, you're going to take a beating on it because you'll have to resell it. Been there, done that.


No one has answered this yet.
Not worth it. Get a supercharger. About $100/HP

[FordNut]

Here is a pic of my MMR Ported Intake. Since I had my heads there too they port matched my intake. Good for 8-hp plus a couple more with the PHP Intake spacer 15 maybe....

http://www.mercurymarauder.net/forums/picture.php?albumid=78&pictureid=556

Yep, maybe 8-10 hp. Doubt the 15 would ever happen.

[Pops]

Brian you are right on the power. I did all of this plus headers and gained 30 HP. Did not do the port match!

[dohc324ci]

Yep, maybe 8-10 hp. Doubt the 15 would ever happen.

Brian you gotta factor in California math...its 15hp man!

[FordNut]

Brian you gotta factor in California math...its 15hp man!

Put a sticker on it and call it 20.