Intake manifold

[Mr.Samples]

venom intake manifold, is it worth the money?

I plan on running either an 18g or a 20g turbo and i wanted to know if it will help me more then a ported 1g manifold

 

[Black95GSX]

I would not invest in the venom intake manifold... I hear it is actually worse then a 1g manifold.

 

[Team Ducktape]

Good product. Just for info; one of the issues of Turbomagazine had a Galant vr-4 with one fitted and infact they gained hosrepower, I don't have the numbers in fron of me, but yes they do work and yes they do make horsepower. Try it, it's Proven. and they look nice too.

 

[rick]

yup. i have that issue of turbo, i liked the results, especially where they say the motor acts like a motorcycle engine!

 

[larryd]

i would save swapping your intake manifold until youve done everything else though

 

[NosLaser]

Out of the designs I have seen, the Venom looks to be about the best; however even it is not that great. I would also heed other's advice and save that for one of the last things you do. I would potentially check out Polk Racing's manifold. I haven't seen much about them, but they are probably worth a look. Building your own is by far the best way to go.

Regards,

 

[GRNDSM]

Guys,

Take everything that you have heard about Venom intake and throw it away! And that does include that turbo article… They are now making braking brand new style of intake, which I like a lot more than their previous model.
Incidentally, the new model is JUST LIKE their race car intakes…

Here are some photos:

http://groups.yahoo.com/group/NewEngDSM/files/GRNMCH/Two intakes 1.jpg

and

http://groups.yahoo.com/group/NewEngDSM/files/GRNMCH/Two intakes 2.jpg

I bought Venom sheet metal intake (from DSMotorsport for $550) because they (Venom) claimed to be “bolt-on” units and I did not feel like redesigning everything under the hood. Well, I was greeted by a couple of surprises, first one being the new style. The other one was the fact that this thing is FAR from being a “bolt-in”. There are some issues with it:

-Throttle body is relocated ~1” toward the firewall, ~1” closer to the battery and ~1 lower. The battery MUST be moved and I/C piping must be flexible enough to accommodate the change (it looks like my BR FMIC pipe will reach it). Still, this manifold places TB closer to stock location than any other one that I have seen.
- 91-99 Style of TPS will not clear Venom intake… You must flip it 180 deg. and lengthen the wires.
- Plastic wireway on top of our stock manifolds must go (not a big deal).
- Taps for PB, BOV and FPR fittings are not the same as Mitsu (nothing that a trip to a hardware store would not fix).
- Coils must be relocated (must be done on ALL sheet metal intakes). I am going to convert to BR’s Coil on Plug system.
- No EGR (as in code in 2Gs if you do not have DMS Link), no PCV… DEFINITELY NOT SMOG LEGAL (again, true for all sheet metal intakes).

Given how I am not yet done with my install, I might find some other issues before I run the car.

Lastly, I was very disappointed with Venom’s “Tech Non-Support”. They originally sold this as bolt-in until, but when I called them with TPS issue, they told me first that this is “RACE ONLY” part, so they can not offer any support on and that they made this style of intake for DSMs for over a year and never heard about anything like that. Now, we all know that this is BS, but oh well. That guy even recommended checking out some Internet boards because they have so many DSM with their intakes… Yea, right… I still like their new intake, just do not expect any tech support from them…

Leon
RR

 

[Mr.Samples]

well since the car is not going to be a daily driver or legal, I have decided to go with the venom intake.

Were did u find info on there new style? there website still only shows the larger red version in the pic you posted.

 

[GRNDSM]

>Were did u find info on there new style? there website still only shows >the larger red version in the pic you posted.

That is their new style of intakes. The old one is shown in May or June version of Turbo Mag. The plenum was rectangular. Now, is round and much larger.

Leon
RR

 

[GST4U2NV]

i just extrude honed a 1g and called it close

 

[GRNDSM]

>i just extrude honed a 1g and called it close

Well, I am not a huge fan of extrude honing (way too expensive). But if all you have is 14b, 16G or even 20G, I would also stick with a stock intake.

However, if you are going for a larger turbo (bigger than 20G), which you are planning on taking past 7500-8000rpms, then you might want to consider sheet metal intake.

Turbo Mag. article that people talking about showed ~ peak 25hp gain in upper rpm range and very modest increase in lower RPM range. In ether case, there was no drop in power in low range as many people believe.

Leon
RR

 

[rdrkt]

Originally posted by GRNDSM
Turbo Mag. article that people talking about showed ~ peak 25hp gain in upper rpm range and very modest increase in lower RPM range. In ether case, there was no drop in power in low range as many people believe.

I really hope that is the case. I just have a little trouble believing Turbo magazine’s dyno figures. However for only $550 its really not THAT expensive. It is definitely on the shopping list for next year.

 

[GST4U2NV]

i bet to differ, a friend here ran a 1g extrude honed , with a full t4 and made 501whp no prob, ran a 11.6 at 135 witha 1g fwd. not too shabby imo.

 

[rdrkt]

Its been proven on a flow bench many times that an extrude hone 1g intake mani does not pick up significantly more airflow. It definitely isn’t worth the $300 bucks especially when you consider how much a sheet metal intake mani costs.

 

[GRNDSM]

>Its been proven on a flow bench many times that an extrude hone 1g
>intake mani does not pick up significantly more airflow. It definitely
>isn’t worth the $300 bucks especially when you consider how much a
>sheet metal intake mani costs.

You are wrong! I am pretty sure that extrudehonning on 1G intake is $395.

Which adds even more credit to your (and my) agument .

Leon
RR

 

[GST4U2NV]

i am not dissing sm intakes in fact i plan on buying one later on down the road, i was just adding it to the discussion.

 

[SpoolinV8killa]

my car gained 10mph in the traps and went from 12.20s to 11.60s with just a venom intake mani and web cams(street grind).

 

[DSMu4ia]

Originally posted by GST4U2NV
i bet to differ, a friend here ran a 1g extrude honed , with a full t4 and made 501whp no prob, ran a 11.6 at 135 witha 1g fwd. not too shabby imo.

Couple people have made right around or over 500whp with a stock/extruded 1g intake.

You guys haven't hit the nail on the head yet from what I've read. It's not about how much power they make, it's the power they keep.

Sheetmetal intakes (besides the old venom) basically prevent power dropoff at 6500rpms (like the stock 1g intake does) and usually can be held all the way to 9000rpm+. The turbo magazine's Venom dyno plot, lost power up high if I remember. Well compared to other sheetmetal intakes it did not hold power much past 6500rpms. I would hope this is changed in the new model.

The older designs killed a little bit of torque down low, and increased lag a little bit, but the greatly improved top end MORE than made up for it.

The reason they feel like you've lost power, is because you are shitting yourself for all the top end you've gained !

 

[GRNDSM]

Guys,

I choose this tread to revisit this topic because it has the best list issues with Venom intake. I often get asked about this intake and have to direct people to this post. This way, it should be more recent .

I just got a chance to check flatness of my Venom intake (as you recall, I noticed intake manifold leak). Well, not only was it warped, it was twisted! My machinist had to take off .010-.012” to make it all flat!!! No wonder my brand new intake manifold gasket was leaking. This is despite the fact that it came already planed! Looking at it, you would never suspect that it was off.

Anyway, check ANY sheet metal intake that you get for straightness and machine as necessary. It will save you a lot of headaches later… And from what I understand, this is not unique to Venom, one of our local DSMers had to do the same thing to his brand new Magnus intake.

Another point, do not use stock bolt on the bottom. I did and could not get them off! They are just too close to the runner, so you can’t put a wrench around them. Instead, I am going to switch to the socket head screws.

Attached is a photo of machined Venom intake, I whish I had one after .005", but I do not, I was not there, but my machinist said that it was amazing to see such pretty manifold being so much off! Also notice what I had to do with the TPS...

Leon
RR

 

[StarCraftLover]

Question at hand...

I don't plan on purchasing a new turbo anytime soon, but I would like to purchase "all" the supporting possible mods within my budget range.

So far I have a Apex FMIC, larger Intercooler piping, Apex N1 dp and exhaust.

I would like to next purchase a new ported Evo exhaust mani, o2 housing, and a sheet metal intake manifold.

Would it be ok to do this on the stock turbo? Or unreasonable?

Thanks for your help.

 

[DSMu4ia]

Keep in mind, you should check any gasket surface for flatness.

When I had my head done, I had both intake/exhaust gasket surfaces planed for trueness, as well as my intake manifold. I plan on checking my header tonight.

I do know Marco @ Magnus had a bad batch of manifolds that went out before being shipped for flatness. They were warped from the welder. This problem is alleviated, and if you have one of his intakes which were warped, you should contact him.

 

[SoCal99GS]

Well, I have a question regarding the effectiveness of this manifold for an N/A eclipse.

Will I get similar results as you are getting(though I understand my HP gain wont be as signifigant)?

Will I have the same problems with closeness to battery, etc? Any information you have on potential problems I will encounter with my 420a with this setup would also be appreciated.

Is it worth getting in a currently N/A setup, and if I do purchase it, will it be alright when I do eventually turbo my Eclipse?

If not the venom, are there any other brands that cater more towards the inital N/A setup?

Thanks in advance for any assistance.

 

[Defiant]

Originally posted by GRNDSM
[B The old one is shown in May or June version of Turbo Mag. The plenum was rectangular. Now, is round and much larger.
[/B]

Jesus, I'll say. What's the payoff in having such a huge plenum? Seems like the damned intake air would get lost in that cave.

 

[NosLaser]

The point of a large plenum is to create a low pressure area, and a ram effect. What happens is you have this high volume of pressurized air, and some of it is going to hit a closed intake valve. When that happens, the air is going to bounce back and seek out the closest low pressure area. This is known as the 3rd harmonic. There is high pressure inside the intake manifold, and definately high pressure in the cylinders, so if your plenum is too small, the next closest low pressure area is your intercooler. With a large plenum, the air will 'collect' there and be ready to go though an open intake valve instantly, creating a ram effect. You basically get much more use of that air that has already taken the time to travel through the IC piping, into the intake manifold, and ready to do it's job contributing to the combustion process.

Regards,

 

[Defiant]

So does it care much about the shape of the plenum, or is it mostly a matter of pressure and/or pressure waves? owait, intake _valve_, not throttle plate. I think I see that part. What "different" (from a street plenum) effect does it have under part-throttle? Is a large plenum like this mostly for WOT benefits?