Intake Manifold Spacer | Ford Explorer - Ford Ranger Forums - Serious Explorations

  • Register Today It's free! This box and some ads will disappear once registered!

Intake Manifold Spacer

Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
...okay....

We've all heard for years that the Throttle Body Spacers don't work. They don't add enough volume to the intake manifold to make a difference. We know this.

We've ALSO heard over for years that the Intake Manifold Spacer on the 5.0L V8 DOES work....

I am making a 1/2" spacer to go inbetween the Upper and Lower intake Manifolds.

What, if any gains do guys think I'll see?

Thanks,
Ryan
 
<

Join the Elite Explorers $20 Gets rid of the ads!

Elite Explorer members see no advertisements, no banner ads, no double underlined links, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create and save more private conversations, and more. Join Today. Your support is greatly appreciated.




Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
NOTHING?

Are you guys understanding what I'm doing here?

Ryan
 
<



<



<



shamaal

Explorer Addict
Joined
April 25, 2005
Messages
1,248
Reaction score
5
City, State
Friensdwood, Texas
Year, Model & Trim Level
91 Mazda Navajo
<



Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
The spacer has to go ON TOP of the rail assy, below the upper intake. It can't go BELOW the `rail....think about it!

The SOHC is a VERY efficient design.....but I'm talking about a OHV.

I am making it out of a sheet of 1/2" Phenolic.

Maybe I can make a Nitrous Plate similar to this one...but for the 4.0L OHV!
70057plate.jpg

(kidding)
 
<



quicklook2

Well-Known Member
Joined
May 23, 2007
Messages
238
Reaction score
1
City, State
lakewood, ohio
Year, Model & Trim Level
1994 exp 4X4 eddie bauer
i am just not sure you will see any benefit from doing this.
 
<



Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
As some of you may have read in my other threads I made one out of a spare fuel rail....I don't know if anyone has done this before.

Has anyone tried this before on the 4.0L?...I know it works on the 5.0L.

I haven't installed it yet....but what do you think of it:



What type of gains do you suppose I will get with this? I will make on out of Phenolic next, now that I have a good pattern to cut it from.

Ryan
 
<



JDraper

Somewhat Functional
Moderator Emeritus
Joined
January 11, 2001
Messages
15,293
Reaction score
16
City, State
McVeytown, PA
Year, Model & Trim Level
'18 XLT
Whoops, didn't see this the first time around. I put one in on my Mach 1, and we dyno'd before and after. You most likely won't see any gains in either the max hp or max torque #'s, but what they really do is fatten the torque curve. The make the intake runners slightly longer, which helps the low end torque. When we installed the intake manifold spacer in my Mach, I crossed the 300 ft-lb level 600 rpms earlier than I did without the spacer, and it didn't affect the top end, so it effectively expanded my power band.

Many of the Mach 1 owners run them. I got mine from Paul's High Performance . His are made of aluminum, but there are other vendors now making them out of phenolic to help with keeping upper intake temperature down.

On the PHP website, they claim 4-8 hp increase, but the Mach 1 owners that have installed them have, in general, found that the peak increases are nil, it's the low end torque that it helps, especially if you have installed a cat-back that is less restrictive.
 
<



Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
Cool...thanks!

Ryan
 
<



Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
UPDATE:




Ryan
 
<



seth247

Explorer Addict
Joined
August 23, 2007
Messages
1,970
Reaction score
3
City, State
Tulsa, Oklahoma
Year, Model & Trim Level
'92 XLT 4X4
if you feel gains I would be interested in buying one.
 
<



Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
After a commute to work, and back I can honestly say there is a bit more power sooner. I haven't taken the motor past 3500 yet, but I was able to break the tires loose in my N-1, 1-2 & 2-3, and at my previous 'normal' shift point of 2300-2500....on the way home I found that if I shift @ 1900-2100 I accelerate normally, with no bog...

I have 285/50-18's in the rear...so I have a bit more rubber back there than most any other 1st gen...

I am not selling these yet....I may do it later......

Ryan
 
<



Beetle Bailey

New Member
Joined
April 6, 2008
Messages
8
Reaction score
0
City, State
Harrah Oklahoma
Year, Model & Trim Level
91'XLT and 93'XLT
JDraper hit the nail right on the head. By raising the plenum you lengthen the runners. Therefore you are going to make better torque. But at the same time you should see a mild gain in economy. If you can keep your foot off the pedal. LOL Bailey.
 
<



Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
Yeah right....I can't keep my foot out of it....

I am going to try to go 1 tank with shifting @ a lower RPM, and see what mileage I could get...

Previously I was shifting @ 2500 for best economy....but I think I can lower that a little..before when I tried my 3-4 shift, it would bog @ less than 2200....I think I can try to shift @ 2100-2300..we'll see...

Ryan
 
<



91exploreron37

Explorer Addict
Joined
October 25, 2006
Messages
1,637
Reaction score
1
City, State
Bartlett Tn
Year, Model & Trim Level
91 Eddie Bauer
What did everything cost completed? Would you be interested in making a few more? I'd be interested in buying one for sure.
 
<



Blacksheep Josh

Slinky+Escalator=Fun
Joined
July 31, 2006
Messages
3,676
Reaction score
13
City, State
Statesboro, GA
Year, Model & Trim Level
'01 Ford Ranger, RIP 93 X
<



Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
I have something in the works for getting these made...

Nobody say anything that is involved in this process....I am trying to keep costs down.

Ryan
 
<



410Fortune

Truck Season!!
Staff member
Moderator
Joined
August 3, 2000
Messages
26,991
Reaction score
2,636
City, State
NORTH IDAHO, 7B
Year, Model & Trim Level
B2 "Slightly" Modified
Callsign
FOURTEN
I had one on my old 2.9L and it works! The metal upper intake would barely get warm, it used to get so hot you could cook breakfast!

On the OHV 4.0L only those with metal upper intakes are going to see any gains...

I believe a colder intake charge (and the price of metal) is why all manufacturers eventually went to plastic upper plenums.

I have a 1" FMS spacer on my 5.0L and I love it.

Good work on your 4.0L, pretty simple upgrade and should work well in dropping the intake air tempature slightly.

Remember you are only as good as your smallest bottleneck
 
<

Join the Elite Explorers $20 Gets rid of the ads!

Elite Explorer members see no advertisements, no banner ads, no double underlined links, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create and save more private conversations, and more. Join Today. Your support is greatly appreciated.




Spdrcer34

Explorer Addict
Joined
March 14, 2002
Messages
3,895
Reaction score
8
City, State
Bremerton, WA
Year, Model & Trim Level
1992 Explorer XL
410....If you'll notice, the first one I made and installed on my personal vehicle is made from Aluminum.....I noticed a HUGE improvement....

I'd like to see if I can get more improvement with a Phenolic one...We'll see

Ryan
 
<



Top