Magnus Cast manifold
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From: Manifesting Within
In regards to the Magnus intake; area beneath the curves for both stock and GT30R dynos are very decent; not only that but both dyno's were tested using a stock TB.
Last edited by Don R; Jul 31, 2008 at 06:46 PM.
Yes, but not enough manifolds are made with the need for improving power across the power band, almost all are made for peak numbers. The new AMS one and the Wilson stock modified ones are they only ones that will probably retain or do better than stock down low due to size, the smaller sheetmetal ones really wont ever be close to the stock down low, but might be due to volume.
Scorke
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From: Puyallup, wa
My thoughts:
There is a definite 20hp gain over the stock manifold and I bet its more pronounced the further out in the revs you go. It ended at 7500 and I know of a few people that rev to 8500 on stock turbos so I am sure they would benefit.
There is exactly 40hp more on the 3037 (HKS version of the 3076) from OE to MagnusCast.
The losses in the graph on a stock turbo are graph to graph no changes. Up the boost a touch and BAMMM power is back. The losses were pretty insginificant anyway...I will give up 10 ft lbs under 5000rpm.
There is a definite 20hp gain over the stock manifold and I bet its more pronounced the further out in the revs you go. It ended at 7500 and I know of a few people that rev to 8500 on stock turbos so I am sure they would benefit.
There is exactly 40hp more on the 3037 (HKS version of the 3076) from OE to MagnusCast.
The losses in the graph on a stock turbo are graph to graph no changes. Up the boost a touch and BAMMM power is back. The losses were pretty insginificant anyway...I will give up 10 ft lbs under 5000rpm.
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Correct on both counts.
Yes, but not enough manifolds are made with the need for improving power across the power band, almost all are made for peak numbers. The new AMS one and the Wilson stock modified ones are they only ones that will probably retain or do better than stock down low due to size, the smaller sheetmetal ones really wont ever be close to the stock down low, but might be due to volume.
Scorke
Yes, but not enough manifolds are made with the need for improving power across the power band, almost all are made for peak numbers. The new AMS one and the Wilson stock modified ones are they only ones that will probably retain or do better than stock down low due to size, the smaller sheetmetal ones really wont ever be close to the stock down low, but might be due to volume.
Scorke
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Joined: Jul 2008
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From: Manifesting Within
The HKS Intake test over the stock unit provided by Buschur shows power gains beginning circa 5700 rpm give or take, whereas Magnus' Intake shows gains beginning about 100 rpm sooner circa 4700 rpm. Mind you different conditions, different setups and different dyno. Seems on par if not better.
Well here is a reason it wont sell as good as the new cast IM from AMS look at the charts/ dyno sheets the AMS cast IM made power from start to end this manifold dont start to make power untill after 4300 give or take and on a turbo car we dont see a gain untill after 4600 give or take.
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Well here is a reason it wont sell as good as the new cast IM from AMS look at the charts/ dyno sheets the AMS cast IM made power from start to end this manifold dont start to make power untill after 4300 give or take and on a turbo car we dont see a gain untill after 4600 give or take.
The HKS Intake test over the stock unit provided by Buschur shows power gains beginning circa 5700 rpm give or take, whereas Magnus' Intake shows gains beginning about 100 rpm sooner circa 4700 rpm. Mind you different conditions, different setups and different dyno. Seems on par if not better.