Single plane intakes
For an NA build the stock intake is enough for the majority of people. With boost or a decent amount of nitrous then I would go single plane. Nitrous and boost motors don't care about losing a bit of tq in the mid-low end for some power up top, they should be making more TQ then they can use anyway.
I've seen LT1 guys switch to single plane intakes a lot more often then I've seen SBC guys switch to a short runner bread box. Just something to consider.
Lmao 
.
I've seen LT1 guys switch to single plane intakes a lot more often then I've seen SBC guys switch to a short runner bread box. Just something to consider.
According to LS1tech, the stock intake is good to 7s no issue what so ever and anyone who swaps out to a single plane is a retard who doesn't know anything. Average ET of poster: mid 12s
According to YB, the stock breadbox is a paper weight and you should have a single plane. Average ET of poster: mid 8s
According to YB, the stock breadbox is a paper weight and you should have a single plane. Average ET of poster: mid 8s
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Joined: Dec 2010
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From: Maricopa, AZ
Smart?
Read this, then tell me how smart it is to just slap a different intake on an engine without building the engine for it. Tell me how smart it is to put a high rise SP on a stock 1978 Camaro 350.... These people probably also threw on a 750 double pumper too....
Read this, then tell me how smart it is to just slap a different intake on an engine without building the engine for it. Tell me how smart it is to put a high rise SP on a stock 1978 Camaro 350.... These people probably also threw on a 750 double pumper too....
Smart?
Read this, then tell me how smart it is to just slap a different intake on an engine without building the engine for it. Tell me how smart it is to put a high rise SP on a stock 1978 Camaro 350.... These people probably also threw on a 750 double pumper too....
Read this, then tell me how smart it is to just slap a different intake on an engine without building the engine for it. Tell me how smart it is to put a high rise SP on a stock 1978 Camaro 350.... These people probably also threw on a 750 double pumper too....
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Joined: Dec 2010
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From: Maricopa, AZ
what an average carb guy does is hardly gospel. Overcarbed and poorly tuned, low compression motors, off the shelf baby cams, low rpm big convertors, glasspacks, high pressure oil pumps with stock pans, etc. are common place with the average carb guy. Not that this is the whole of them but most of the ones you'll run into outside the fast guys at the track.
I don't find it smart to throw a high rise single plane on a carb'd 1978 350 in a Chevy Camaro. Which, apparently, is how smart carb'd guys upgrade from the start.
Unless you are FI/N20 or spinning a NA motor well past the stock PCM rpm limits, I would believe a single plane is a waste of money that could be spent elsewhere.
The OP has a stock 350ci motor with heads/cam so I doubt he will gain much at all except a cool looking intake.
Thread Starter
Launching!
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Thats how i win my car show awards, need all the cool stuff....
But i was intrigued on how the iac goes on these. So how would you do the iac if someone used the lt1 style throttle body? I guess lsx tb's just crack the blade a tad
But i was intrigued on how the iac goes on these. So how would you do the iac if someone used the lt1 style throttle body? I guess lsx tb's just crack the blade a tad
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Joined: Dec 2010
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In any case, it doesn't really matter if you crack the blades or use the IAC with a single plane (or dual for that matter) as the air will be distributed the same way once it gets past the TB. The advantage of the IAC is having it step the idle up or down based on A/C, load, and or speed.
I do suggest you adjust the individual injector trims at idle and low throttle while on the dyno though. The individual injector trims are adjusted for the LT1 intake and will need changed for the single plane.
I'm subscribed for the dyno results.
If you're staying below 7100 rpm with an NA setup, you won't gain a thing with a SP/Victor type intake. My friend Mike Harris, who runs the quickest NA ImpalaSS (10.4 @ 127 at 3800 lbs, factory PCM) experimented with numerous SP and homemade intakes and never went any quicker than with his ported LT1 manifold. He was able to make a few more peak HP on the dyno with some of the setups, but none outperformed the ported LT1 at the track.
If you're staying below 7100 rpm with an NA setup, you won't gain a thing with a SP/Victor type intake. My friend Mike Harris, who runs the quickest NA ImpalaSS (10.4 @ 127 at 3800 lbs, factory PCM) experimented with numerous SP and homemade intakes and never went any quicker than with his ported LT1 manifold. He was able to make a few more peak HP on the dyno with some of the setups, but none outperformed the ported LT1 at the track.
According to LS1tech, the stock intake is good to 7s no issue what so ever and anyone who swaps out to a single plane is a retard who doesn't know anything. Average ET of poster: mid 12s
According to YB, the stock breadbox is a paper weight and you should have a single plane. Average ET of poster: mid 8s
According to YB, the stock breadbox is a paper weight and you should have a single plane. Average ET of poster: mid 8s
If I were to do single plane I would add this:
http://www.nitrousoutlet.com/carbure...te-system.html
http://www.nitrousoutlet.com/carbure...te-system.html