4.0 Myth Busting
#18
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Year: 97
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LOL. I laugh everytime I see this "magazine" article posted. So a couple of dudes in a garage somewhere put ONE intake on ONE XJ and it didn't work out like people say and thus they claim they scientifically "busted" the intake manifold "myth". To be scientifically valid this "ACTUAL testing" should have included many vehicles and been performed on a variety of test equipment. If they had ANY pre-test opinion on the validity of the intake manifold swap their entire process and results can not be taken at face value as even trust worthy. But man those are some smart fellas. They know more than the automotive engineers at Daimler who redesigned the intake manifold to restore power lost over the years due to modern emissions additions and the engineers at Edelbrok who use the same techiques and testing to design higher flowing intakes to increase power for race cars. Shame they are wasting their vast knowledge working at some webazine when the entire world wide automotive industry has it's head in the sand and doesn't know what it's doing.
#21
LOL. I laugh everytime I see this "magazine" article posted. So a couple of dudes in a garage somewhere put ONE intake on ONE XJ and it didn't work out like people say and thus they claim they scientifically "busted" the intake manifold "myth". To be scientifically valid this "ACTUAL testing" should have included many vehicles and been performed on a variety of test equipment. If they had ANY pre-test opinion on the validity of the intake manifold swap their entire process and results can not be taken at face value as even trust worthy. But man those are some smart fellas. They know more than the automotive engineers at Daimler who redesigned the intake manifold to restore power lost over the years due to modern emissions additions and the engineers at Edelbrok who use the same techiques and testing to design higher flowing intakes to increase power for race cars. Shame they are wasting their vast knowledge working at some webazine when the entire world wide automotive industry has it's head in the sand and doesn't know what it's doing.
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Year: 1997
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4.0 Myth Busting
http://www.fourwheeler.com/how-to/en...67087#cxrecs_s
Pretty cool article with ACTUAL testing results. Honestly, my main reason for posting this is so all you guys that are switching your intake manifolds out for the 99+ manifolds will see how stupid it is. Enjoy
Pretty cool article with ACTUAL testing results. Honestly, my main reason for posting this is so all you guys that are switching your intake manifolds out for the 99+ manifolds will see how stupid it is. Enjoy
#23
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Year: 97
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Now that is how you state your opinion like an adult! I think it would have been cool if they put a few pics of the dyno sheet up. I doubt the intake made much of a peak torque increase but, I would almost guarantee that it made the curve considerably larger.
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And that's why originally the swap was popular because with these engines, we are not looking for hp but for tq. I do not remember where I read it(here, naxja, pirate, jeep, etc.....lol) but they did have a sheet showing the lower hp but a higher tq at low rpm, not crazy amount but justifiable if you were to get one for like $40
#26
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Year: 1995
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actually forced induction cares less about some smaller restrictions, the reason being an N/A motor is relying on air pressure 14.7 psi at sea level to force itself into the engine on the intake stroke. When you have boost though, lets say 10 lbs+ atmospheric= 24.7 lbs pushing air into the cylinder. Now im not saying getting rid of those restrictions wont help, i'm saying it doesnt matter as much as an N/A motor... When my engine goes south (hopefully no time soon since I just got it going again after 2 years downtime) I will do a 4.2 and cam and propane all at once with an HEI distributor, and will probably go for the intake then
Because I can get propane free, and have worked on more propane powered vehicles than I can remember. I want to go propane for a few reasons, but you could call me a "prepper". Propane does not go bad, no electronics other than the HEI distributor unless I went with an elctric cut off solenoid, instead of a vacuum. You can upgrade the diaphrams in the card and vaporizer to silicone where they don't rot after 5-7 years. No more fuel pumps,nor electronics other than hei module, and coil, which I will have spares inside of a microwave with an oxygen eater pack. I have 2 forklift tanks already and can take the fuel tank out and raise them into the rear compartment to be totally protected. Cleaner burning and longer lasting motor also....
#27
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Because I can get propane free, and have worked on more propane powered vehicles than I can remember. I want to go propane for a few reasons, but you could call me a "prepper". Propane does not go bad, no electronics other than the HEI distributor unless I went with an elctric cut off solenoid, instead of a vacuum. You can upgrade the diaphrams in the card and vaporizer to silicone where they don't rot after 5-7 years. No more fuel pumps,nor electronics other than hei module, and coil, which I will have spares inside of a microwave with an oxygen eater pack. I have 2 forklift tanks already and can take the fuel tank out and raise them into the rear compartment to be totally protected. Cleaner burning and longer lasting motor also....
#28
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Year: 1995
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Yeah, been dreaming of it for a while now... I had a propane powered sammy at one point, then turned it into a diesel. But on the propane side, say end of electricity, you can always go knock locks off of a propane tank cage at a gas station and if you have an adapter use 20lb and 30lb bottles, which are about 5 gallons