92mm vs 102 mm
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Teching In
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92mm vs 102 mm hey guys- I am building a 5.3 vortec from a 2001 Tahoe for a swap-pretty much bone stock with the exception of headers/cai and a stage one cam-was looking at the holley sniper intakes, went to order the 820032 with a 92 mm opening-but they are on backorder and they don't know when they will get them-was going to check on the 820042 which has a 102 mm opening-my question is will there be any big difference between 102 and 92mm? will 102 be ok if I can actually get the manifold or will it hurt me? had one guy tell me that with the mods I had on the engine and with running a small cam-the 102 will hurt power at the lower rpm range-is this true? based on the mods I have which opening would work the best? or will it not affect it? thanks
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Teching In
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the 820032 and the 820042 are both high ram intakes-they do make low profile intakes-but like you said I wanted one of these 2 because they were longer runners-figured they would work better since the swap is going into a truck-I still have my stock intake-if it gets real bad I could run it-what is the difference between the stock intake and a trailblazer intake?
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the 820032 and the 820042 are both high ram intakes-they do make low profile intakes-but like you said I wanted one of these 2 because they were longer runners-figured they would work better since the swap is going into a truck-I still have my stock intake-if it gets real bad I could run it-what is the difference between the stock intake and a trailblazer intake?
https://www.hotrod.com/articles/20-l...ifolds-tested/
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If you're running a Sniper intake on a 5.3 with a stage one cam, you shouldn't worry about whether or not the 102 is going to hurt you.
That intake will make you lose power compared to a Gen 4 truck intake at literally every single RPM you're going to use.
That intake will make you lose power compared to a Gen 4 truck intake at literally every single RPM you're going to use.
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Even the high rams "longer" runners (longer than the sniper) are about half the length of the trailblazer, stock truck, or any other OEM LS intake's runners. The longer runners are better for power below around 5000-5500 or so rpm. And with your setup that could even be higher to where you wouldn't see a benefit until well over 6000 rpm, and that's if you saw a benefit at all.
Not to beat a dead horse, but any of those intakes will be terrible for your setup.
As for the 92 or 102. On your setup neither of those will really be needed. Both are bigger than you'll need. Wont really hurt, but larger than needed for sure.
The stock intake would be better than any of the sniper or high rams, and the trailblazer is better than the stock one. The trailblazer is without doubt the best option discussed in here so far.
If you really want to do an aftermarket intake a FAST intake would work great, but probably won't give you much of any over the trailblazer intake with your 5.3 and small cam and assume stock heads.
Not to beat a dead horse, but any of those intakes will be terrible for your setup.
As for the 92 or 102. On your setup neither of those will really be needed. Both are bigger than you'll need. Wont really hurt, but larger than needed for sure.
The stock intake would be better than any of the sniper or high rams, and the trailblazer is better than the stock one. The trailblazer is without doubt the best option discussed in here so far.
If you really want to do an aftermarket intake a FAST intake would work great, but probably won't give you much of any over the trailblazer intake with your 5.3 and small cam and assume stock heads.
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Teching In
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ok thanks a lot for the info- now here is another idea I had-I was going to run this engine the way it was for a little while and at least get this blazer up and running and drive it for awhile. But more than likely I will end up putting boost on this engine with a turbo charger-will this sniper intake work well for that application? I still have the stock manifold so I can swap it out and try it if the sniper doesn't work out-but if I buy one will it work well with a turbocharger down the road?
I appreciate the help-obviously this is my first ls build
I appreciate the help-obviously this is my first ls build
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if you watch Richard Holdener's videos, he has found that even with a turbo, the sniper manifold will make less power down low than a longer runner manifold. Boost adds power, but the manifolds still compare to each other the same way.
ok thanks a lot for the info- now here is another idea I had-I was going to run this engine the way it was for a little while and at least get this blazer up and running and drive it for awhile. But more than likely I will end up putting boost on this engine with a turbo charger-will this sniper intake work well for that application? I still have the stock manifold so I can swap it out and try it if the sniper doesn't work out-but if I buy one will it work well with a turbocharger down the road?
I appreciate the help-obviously this is my first ls build
I appreciate the help-obviously this is my first ls build
The way you look at boost is that you aren't adding boost, you are increasing boost. We already have 14 pounds of boost aka atmospheric pressure. When you add a turbo or blower you are increasing that boost that is already naturally there. Therefore you get the same, just more of it.
In other words your power curve will be affected by the intake you run. And it will be affected the same way NA or boost.
This can be manipulated by where you add the boost of course. But if you add for example 10 pounds from 1000 rpm to 6000 rpm your power curve should look the same. If you change the manifold the power curve will change and if you again add 10 pounds everywhere the curve will still look the same but the power will be higher. But if you lack power down low and add more boost down low then of course the curve will change.
To summarize with or without boost you will shift the power curve way further out with those intakes you mentioned.
