spi intake man? - The Ford Focus Forum

**'hocus'pocus'focus'wagoon** · 10-19-2009, 09:25 PM

does any one know or tried to use a zetec intake manifold on a spi.i know that the the split port spacer but iv taken the butterflies and rod out and it runs great. so i figured if it works fine without it maybe i could just change the hol thing . any one try or know of any intake manifold swaps or mods.
p.s and im not talkin about the intake tube and filter the actual maifold thanks :0

**SOHCTUNER** · 10-20-2009, 01:32 AM

I was going to do that but the holes are different you would need a new flange.

**syntheticGT** · 10-20-2009, 08:16 AM

Holes dont line up and power gains would not be worth it.

**'hocus'pocus'focus'wagoon** · 10-20-2009, 08:18 AM

ok thats what i was wondering. the header i have is for a zetec and that was the isue with that to so i welded the holes in the flange and redrilled them to fit. i wonder if i could do the same with the intake manifold?

**'hocus'pocus'focus'wagoon** · 10-20-2009, 08:20 AM

well i cant find a after market tb for the spi but only for the zetec.

**JeffescortLX** · 10-20-2009, 03:05 PM

The Zetec intake mani is plastic with a built in O-ring. The port opening in the SPI head is no where near the same shape as the Zetec. It would be much easyer to build a intake mani from scratch rather then modifying the Zetec one.

But even if you did build a big mani with a large TB, your intake valve is still gonna be a bottle neck. So there wont be huge gains.

**pzev04boy** · 10-20-2009, 06:12 PM

Spi throttle body http://forums.focaljet.com/power/616...ttle-body.html

**pzev04boy** · 10-20-2009, 06:13 PM

Quote:

Originally Posted by JeffescortLX

The Zetec intake mani is plastic with a built in O-ring. The port opening in the SPI head is no where near the same shape as the Zetec. It would be much easyer to build a intake mani from scratch rather then modifying the Zetec one.

But even if you did build a big mani with a large TB, your intake valve is still gonna be a bottle neck. So there wont be huge gains.

Would an old 1.9 escort GT intake manifold work with the spi head? I've never seen the ports on the 1.9.

**'hocus'pocus'focus'wagoon** · 10-21-2009, 06:20 PM

i will probaley just make my own intake from scatch and port the hell out of the intake runner :0

**JeffescortLX** · 10-21-2009, 09:36 PM

Quote:

Originally Posted by pzev04boy

Would an old 1.9 escort GT intake manifold work with the spi head? I've never seen the ports on the 1.9.

The 1.9's have you average "O" shape. The SPI has a total of 8 intake ports in the head. 4 of them are crescent moon shaped.
SPI in too unique for a easy swap. Unless you keep the IMRC in place, that helps a little.

**Jimmy** · 10-22-2009, 01:22 PM

Quote:

Originally Posted by 'hocus'pocus'focus'wagoon

i will probaley just make my own intake from scatch and port the hell out of the intake runner :0

Expect no torque.

**pzev04boy** · 10-25-2009, 11:15 PM

Quote:

Originally Posted by JeffescortLX

The 1.9's have you average "O" shape. The SPI has a total of 8 intake ports in the head. 4 of them are crescent moon shaped.
SPI in too unique for a easy swap. Unless you keep the IMRC in place, that helps a little.

I just wasn't sure if the port on the 1.9 manifold was big enough to go around the spi port. Is it the same bolt pattern even? Might be able to use it with the imrc still installed although I doubt it would give any gains doing that.

**JeffescortLX** · 10-27-2009, 07:34 PM

Bolt pattern is different, and even with the IMRC the intake port shape is pretty differet.

10-19-2009, 09:25 PM	#1 (permalink)
'hocus'pocus'focus'wagoon Rookie Join Date: Oct 2009 Location: taneytown md Posts: 7	spi intake man? does any one know or tried to use a zetec intake manifold on a spi.i know that the the split port spacer but iv taken the butterflies and rod out and it runs great. so i figured if it works fine without it maybe i could just change the hol thing . any one try or know of any intake manifold swaps or mods. p.s and im not talkin about the intake tube and filter the actual maifold thanks :0 __________________ sagon wagon me sagon wagon you :0

10-20-2009, 01:32 AM	#2 (permalink)
SOHCTUNER Senior TEAM Member Join Date: Sep 2008 Location: Glendale,Az Posts: 1,348	Re: spi intake man? I was going to do that but the holes are different you would need a new flange. __________________ "it costs like 30 grand" "you can buy a nice set of grapefuits for that amount of money" "It's better than sex, I'm telling you." "Just Stick that camshaft in there like a pro. maby we can stick them in there like pros LOL!"

10-20-2009, 08:16 AM	#3 (permalink)
syntheticGT Tarderator aka: Red-SE-00' Join Date: Sep 2000 Location: slowredspi Posts: 13,815	Re: spi intake man? Holes dont line up and power gains would not be worth it. __________________ New Project coming soon...xB is stock again. .2006 .Scion .xB .Polar White *Team SunWorks [FJ] focaljet - GUIDELINES - GALLERY - [FJ]WALLPAPER - STORE - SPONSORS - SEARCH - Any Questions?**

10-20-2009, 08:18 AM	#4 (permalink)
'hocus'pocus'focus'wagoon Rookie Join Date: Oct 2009 Location: taneytown md Posts: 7	Re: spi intake man? ok thats what i was wondering. the header i have is for a zetec and that was the isue with that to so i welded the holes in the flange and redrilled them to fit. i wonder if i could do the same with the intake manifold? __________________ sagon wagon me sagon wagon you :0

10-20-2009, 08:20 AM	#5 (permalink)
'hocus'pocus'focus'wagoon Rookie Join Date: Oct 2009 Location: taneytown md Posts: 7	Re: spi intake man? well i cant find a after market tb for the spi but only for the zetec. __________________ sagon wagon me sagon wagon you :0

10-20-2009, 03:05 PM	#6 (permalink)
JeffescortLX Senior TEAM Member Join Date: Sep 2002 Location: Minnesota Posts: 1,353	Re: spi intake man? The Zetec intake mani is plastic with a built in O-ring. The port opening in the SPI head is no where near the same shape as the Zetec. It would be much easyer to build a intake mani from scratch rather then modifying the Zetec one. But even if you did build a big mani with a large TB, your intake valve is still gonna be a bottle neck. So there wont be huge gains. __________________ 212.2whp 262.6tq 1-7/8" Exhaust. http://www.cardomain.com/id/jeffescortlx 1.9 SPI stock internals 2150lbs.

10-20-2009, 06:12 PM	#7 (permalink)
pzev04boy Senior TEAM Member Join Date: Sep 2004 Location: Round Lake, IL Posts: 3,191	Re: spi intake man? Spi throttle body http://forums.focaljet.com/power/616...ttle-body.html __________________ 03 Zetec ATX E&S TURBO SYSTEMS powered sedan 00 Mustang Gt - Built motor - Soon to be Single turbo 07 Ninja 500R Building 640cc race motor.

10-21-2009, 06:20 PM	#9 (permalink)
'hocus'pocus'focus'wagoon Rookie Join Date: Oct 2009 Location: taneytown md Posts: 7	Re: spi intake man? i will probaley just make my own intake from scatch and port the hell out of the intake runner :0 __________________ sagon wagon me sagon wagon you :0

10-27-2009, 07:34 PM	#13 (permalink)
JeffescortLX Senior TEAM Member Join Date: Sep 2002 Location: Minnesota Posts: 1,353	Re: spi intake man? Bolt pattern is different, and even with the IMRC the intake port shape is pretty differet. __________________ 212.2whp 262.6tq 1-7/8" Exhaust. http://www.cardomain.com/id/jeffescortlx 1.9 SPI stock internals 2150lbs.

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