Volvo XC90 V8 Engine Intake

[Izzmo]

Take a look at this picture: (it's kinda big)
http://www.drivingenthusiast.net/sec-ford/FMC-engines/8y44d-volvo/xc90_2280_1.jpg

Can anyone theorize what type of HP gains are too be had if, say, we put/built a similar looking one for our v8's?

Also, notice the butterfly's on the intake, what do those do? (The pictures doesn't clearly signify where the flow is going on it).

 

[SuperHO]

I doubt there'd be much of an increase at all. maybe a slight rise in low end from the longer runners, but otherwise, it'd be like kicking a dead horse. as for the butterflies, I've scoured teh interwebs with nothing to show for it. I don't even see two ports going into the head on the intake side of things from that diagram.

 

[Izzmo]

Ah, alright. I could see how it wouldn't really do anything though now.

 

[SHOZ123]

Here's some different pics to help you fantasize......

 

[SuperHO]

how similar is this engine to the 3.4?

 

[Izzmo]

From the cut aways I saw, it doesn't look too dissimilar, just bigger boar (4.2 liters I think), and it doesn't have secondaries of course.

Anyone else notice on the cutaway of the back valve cover that there is a little spring mechanism in between the serp. belt; anyone know what that is?

 

[jimtash]

The original V-8 intake that's very similar to the V-6 version needs to be scrutinized IMO. The question begs why wasn't it used?

 

[SuperHO]

clearance would be my guess, especially in the front of the engine bay. but i totally agree. think we could talk Doug into giving someone measurements to have one made?

 

[Izzmo]

But the question posed is: will it have a substantial increase in HP?

 

[SuperHO]

probably nothing substantial, although i imagine there would be some gains to be found, especially in low range torque. i bet it'd give that V8 a wicked howl though.

 

[Izzmo]

By having a different intake?

 

[Siman]

i think the intake was thrown out because the bull started walking on the heals of a stang....Im going to have a prototype soon of a intake im working on im just waiting for my engine for tolerance and testing.

 

[Izzmo]

I mean.. it's possible.. I guess, but I think the real part of the engine that makes a difference when it comes to power is overall displacement (along with the bigger TB and fuel injectors).

 

[Siman]

intake, exhaust, blowers, timing, UDP, and even adding better ground wire can improve an engine allot, compared to over boring and stroking a motor over boring is mostly done to bring compression back up. There is much more to speed than just displacement...by adding xado oil treatment you can gain a decent amount of compression even when used in a brand new car. Displacement is only good if used effectively. Toyota and Mitsubishi have sadly shown this... truth be told i like the inline configuration over the V...

 

[Izzmo]

I have not seen any hard numbers on the UDP, nor has anyone really said they felt like it made a lot of difference for the people who did have it installed. If I see some #'s and it shows it's worth it, I will buy it up.

 

[SHOZ123]

The UDP is well worth it. You may not notice it after installing but take it off and you will in a heart beat.

 

[Siman]

most advantage of a UDP comes from higher RPMs your accessories don’t fall apart.

 

[Siman]

most advantage of a UDP comes from higher RPMs your accessories don’t fall apart.

 

[somedude_001]

most advantage of a UDP comes from higher RPMs your accessories don’t fall apart.