intakemanifold
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- | This page is a guide for intake manifold selection for auto cars | ||
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===== Intake Manifold ===== | ===== Intake Manifold ===== | ||
==== Overview ==== | ==== Overview ==== | ||
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- | In order to proper select an intake manifold you should understand everything involved. With auto cars its all about finding the perfect cylinder head combination because you want top end power as well and some low end and mid range power for stall/ | + | In order to proper select an intake manifold you should understand everything involved. With auto cars its all about finding the perfect cylinder head combination because you want top end power as well and some low end and mid range power for stall/ |
There are three possible variations of cylinder heads. And basically this gets narrowed down to the intake port runner size since we are focusing on intake manifold selection and not differences in the heads. Note: 1G 6 Bolt and 1G 7 Bolt heads are exactly the same with the exception for the head bolt/stud holes being different. | There are three possible variations of cylinder heads. And basically this gets narrowed down to the intake port runner size since we are focusing on intake manifold selection and not differences in the heads. Note: 1G 6 Bolt and 1G 7 Bolt heads are exactly the same with the exception for the head bolt/stud holes being different. | ||
- | ^Head ^ Runner ^ | + | ^Head ^ Runner |
- | | 1G 6 Bolt | Large Runner | | + | | 1G 6 Bolt | Large Runner |
- | | 1G 7 Bolt | Large Runner | | + | | 1G 7 Bolt | Large Runner |
- | | 2G 7 Bolt | Small Runner | | + | | 2G 7 Bolt | Small Runner |
Here is what a large runner intake port looks like compared to a small runner intake port. | Here is what a large runner intake port looks like compared to a small runner intake port. | ||
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- | Here is an example of the large port and small port cylinder heads next to each other. As you can see the difference in runner sizes between the two. The larger port volume of the large port head has an effect on low end to mid range power but really shines on mid range to top end power. This is due to port velocity. The more power you make the better the large port head compliments the setup. Usually race 2g heads end up ported out to large runner size. The small runner has a smaller | + | Here is an example of the large port and small port cylinder heads next to each other. As you can see the difference in runner sizes between the two. The larger port volume of the large port head has an effect on low end to mid range power but really shines on mid range to top end power. This is due to port velocity. The more power you make the better the large port head compliments the setup. Usually race 2g heads end up ported out to large runner size. The small runner has a smaller |
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===Turbo Cyclone split runner=== | ===Turbo Cyclone split runner=== | ||
This intake manifold is basically the Evo3 intake manifold for large runner heads. It has two separate sets of intake runners. One set is longer then the other and they feed into a single port at the cylinder head and have a divider much like you see in a cylinder head. It has an actuated set of butterflies in a set of runners. The way it works is off boost the butterflies stay closed and that keeps the air moving through one set of runners and keeps manifold air high velocity and this helps increase off boost throttle response and spool. Then once boost pressure comes on the butterflies go open to take advantage of the large volume to make horsepower. | This intake manifold is basically the Evo3 intake manifold for large runner heads. It has two separate sets of intake runners. One set is longer then the other and they feed into a single port at the cylinder head and have a divider much like you see in a cylinder head. It has an actuated set of butterflies in a set of runners. The way it works is off boost the butterflies stay closed and that keeps the air moving through one set of runners and keeps manifold air high velocity and this helps increase off boost throttle response and spool. Then once boost pressure comes on the butterflies go open to take advantage of the large volume to make horsepower. | ||
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===N/A Cyclone Split runner=== | ===N/A Cyclone Split runner=== | ||
The function of this manifold is the same as the Cyclone except it is a two piece design instead of a 3 peice. It does not say Cyclone on the casting. This manifold is found in EDM Galant Dynamic-4, Galant AMG, JDM/EDM Galant GTi. They are rare items and also have actuated butterflies and split runners. These intake manifolds have a far smoother design with better shaped runners and a larger plenum volume. The top end powerband is a good bit better then the Turbo Cyclone but not much. This manifold is good for about 8000-9000 RPM or higher depending on camshaft. | The function of this manifold is the same as the Cyclone except it is a two piece design instead of a 3 peice. It does not say Cyclone on the casting. This manifold is found in EDM Galant Dynamic-4, Galant AMG, JDM/EDM Galant GTi. They are rare items and also have actuated butterflies and split runners. These intake manifolds have a far smoother design with better shaped runners and a larger plenum volume. The top end powerband is a good bit better then the Turbo Cyclone but not much. This manifold is good for about 8000-9000 RPM or higher depending on camshaft. | ||
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===JMF Race=== | ===JMF Race=== | ||
The JMF " | The JMF " | ||
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===Magnus V3=== | ===Magnus V3=== | ||
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With that being the case, the intake manifold needs to be optimized to feed these flow-hungry ports. Using advanced computer modeling techniques and after 7 iterations, we finally achieved the design we were looking for. From 20 PSI to 100 PSI. and from 40 lbs of airflow to 160lbs of airflow, the new 1G V3 cast manifold has equal flow distribution within 1 percent in each cylinder. That’s something none of the competition can even approach. In addition to unmatched flow distribution, | With that being the case, the intake manifold needs to be optimized to feed these flow-hungry ports. Using advanced computer modeling techniques and after 7 iterations, we finally achieved the design we were looking for. From 20 PSI to 100 PSI. and from 40 lbs of airflow to 160lbs of airflow, the new 1G V3 cast manifold has equal flow distribution within 1 percent in each cylinder. That’s something none of the competition can even approach. In addition to unmatched flow distribution, | ||
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===JMF Drag=== | ===JMF Drag=== | ||
The JMF " | The JMF " | ||
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==== Small Runner ==== | ==== Small Runner ==== | ||
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{{http:// | {{http:// | ||
This manifold works very well and its bottom and mid range powerband are very difficult to beat. However this manifold lacks in top end performance. This manifold can be used on any combination but most of the other intake manifolds listed here will produce decent gains on the top end over the stock manifold. This manifold is good for about 6000-7500 RPM or higher depending on camshaft. | This manifold works very well and its bottom and mid range powerband are very difficult to beat. However this manifold lacks in top end performance. This manifold can be used on any combination but most of the other intake manifolds listed here will produce decent gains on the top end over the stock manifold. This manifold is good for about 6000-7500 RPM or higher depending on camshaft. | ||
- | ===Evo3=== | + | ===Evo3/RVR=== |
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- | ===JMF | + | The Evo3 intake has a bigger plenum and shorter runners than a 2g intake. This will allow it to make power higher up in the rpm band. It's a nice compromise between the 6500rpm cuttoff of a stocker. RVR Runner’s and plenum are the same. RVR has smaller TB inlet, it doesn’t have the port for the egr (wasn’t used for that tho), RVR also is just missing a couple extra vacuum nipples. |
+ | ===JMF | ||
The JMF " | The JMF " | ||
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===Magnus V4=== | ===Magnus V4=== | ||
After endless hours dedicated to creating prototypes, testing and perfecting we had reached the results that we were looking for. The result that we had achieved from the last prototype was up to our standards, was Magnus approved and that is when the V4 cast manifold was born. We dedicated almost two years of research and development using enhanced flow dynamics utilizing CAD Modeling & CFD simulation to develop the manifold. It’s made from A356-T6 aluminum alloy and can be installed in stock location with clearance for the original battery. The Manifold can be configured for 8 injectors using the Magnus weld in dual fuel rail kit and fits factory fuel rail or Magnus high flow fuel rail. Featuring 5L plenum with contoured velocity stacks molded into the floor for huge top end and minimal turbulence. This manifold is good for about 9000 RPM or higher depending on camshaft. | After endless hours dedicated to creating prototypes, testing and perfecting we had reached the results that we were looking for. The result that we had achieved from the last prototype was up to our standards, was Magnus approved and that is when the V4 cast manifold was born. We dedicated almost two years of research and development using enhanced flow dynamics utilizing CAD Modeling & CFD simulation to develop the manifold. It’s made from A356-T6 aluminum alloy and can be installed in stock location with clearance for the original battery. The Manifold can be configured for 8 injectors using the Magnus weld in dual fuel rail kit and fits factory fuel rail or Magnus high flow fuel rail. Featuring 5L plenum with contoured velocity stacks molded into the floor for huge top end and minimal turbulence. This manifold is good for about 9000 RPM or higher depending on camshaft. | ||
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===JMF Drag=== | ===JMF Drag=== | ||
The JMF " | The JMF " | ||
+ | {{ http:// | ||
==== Intake Manifolds to avoid ==== | ==== Intake Manifolds to avoid ==== | ||
Venom and Slowboy Racing Sheet metal intake manifolds are for some reason sought after. Both of these intakes are very terrible. I have back to back compared them with stock and the stock intake manifold picked up quite a but of midrange power and spool over them. Do not use these. They are seriously junk with no R&D. They are also known to crack and burst. | Venom and Slowboy Racing Sheet metal intake manifolds are for some reason sought after. Both of these intakes are very terrible. I have back to back compared them with stock and the stock intake manifold picked up quite a but of midrange power and spool over them. Do not use these. They are seriously junk with no R&D. They are also known to crack and burst. |
intakemanifold.1589616749.txt.gz · Last modified: 2020/05/16 08:12 by admin