victor series vs FAST 102
12-23-2013, 11:06 PM
#22
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I did a Gen IV engine build using a GM single plane intake (similar to the victor) with a FAST 4 barrel TB and port fuel injection. The engine builder spent a lot of time to spec the correct cam for the set up. The engine was easy to tune with no issues... and works great for street driving. Very linear with no flat spots or spikes.
It's important with the single plane to make sure the incoming air is not restricted. I tested different cold air intakes on mine while the engine was on the engine dyno. When I ran a 90 degree elbow with 4" tubing, the peak HP dropped over 60 HP! The best result was achieved using a 14" diameter x 4" tall K&N filter in a drop base on top of the 4 barrel TB.
With a single plane you will get some extra peak HP, and higher RPM potential in comparison to the LS plastic intakes. My car has a 4 speed manual trans and I wanted to be able to wind it up in the 7k range out on the track. The engine runs smooth with a very linear power curve and made 672 HP at 6900 RPM and 566 Torque @ 5500 RPM. The torque was near 500 Lb-ft at 3600 RPM and was still over 500 Lb-ft at 7000 RPM. I like the results with the single plane and I'm glad I tried it.
I have been driving mine on the street for the past couple of years ... and the tune has not been modified since the engine was tuned on the dyno. Here is the dyno sheet from my 427" gen IV engine build. Even though your engine is less cubic inches, you can still expect to get more peak power, and higher RPM potential with the victor in comparison to the LS intake.
It's important with the single plane to make sure the incoming air is not restricted. I tested different cold air intakes on mine while the engine was on the engine dyno. When I ran a 90 degree elbow with 4" tubing, the peak HP dropped over 60 HP! The best result was achieved using a 14" diameter x 4" tall K&N filter in a drop base on top of the 4 barrel TB.
With a single plane you will get some extra peak HP, and higher RPM potential in comparison to the LS plastic intakes. My car has a 4 speed manual trans and I wanted to be able to wind it up in the 7k range out on the track. The engine runs smooth with a very linear power curve and made 672 HP at 6900 RPM and 566 Torque @ 5500 RPM. The torque was near 500 Lb-ft at 3600 RPM and was still over 500 Lb-ft at 7000 RPM. I like the results with the single plane and I'm glad I tried it.
I have been driving mine on the street for the past couple of years ... and the tune has not been modified since the engine was tuned on the dyno. Here is the dyno sheet from my 427" gen IV engine build. Even though your engine is less cubic inches, you can still expect to get more peak power, and higher RPM potential with the victor in comparison to the LS intake.
12-23-2013, 11:52 PM
#24
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You might check out the FAST or Accufab 4-barrel TB. They use LS1 sensors (99% sure).
Here is some pics of the FAST 4-barrel TB set up.
12-24-2013, 12:14 AM
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Much research there is to do yes. Hhrmmm
Im seeing a lot of heresay here on the interwebs. Different opinions and what not, like power loss under the curve vs a fast and how the vic jr is a drag strip type intake where as the FAST is more street style although the price doesn't reflect that. I think I want to see what kind of cars people are putting vic jrs on
Im seeing a lot of heresay here on the interwebs. Different opinions and what not, like power loss under the curve vs a fast and how the vic jr is a drag strip type intake where as the FAST is more street style although the price doesn't reflect that. I think I want to see what kind of cars people are putting vic jrs on
12-24-2013, 10:53 AM
#27
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Well I have the ac and hvac case removed, I didnt find the biggest cam I could I went withe MS3 a proven performer, and I have the 3.42 in the rear sooo. I want to see what people are using there vic jr for street use or strip use. Couldnt I set up a poll or something?
Id really like the vic jr, but I want to make sure its right for my application.
Id really like the vic jr, but I want to make sure its right for my application.
12-24-2013, 10:59 AM
#28
Having the right cam for either the Vic. Jr. or Super Vic. is where 99% of people running these intakes go wrong. You can't expect a cam designed for a LS6/FAST intake to work well for a single plane intake. If you get the proper cam for whatever intake you decide on, it's going to perform the way you want it to. You won't have that loss of low RPM power/torque because the cam profile will be designed with valve events to keep that from happening. Plus, you'll have all the power you could ever ask for from 7,000 RPM's on. Don't let the misfortunes of people who just threw parts at their car in hopes of it making the power they thought it would lead you away from either of the Victor style intakes.
12-24-2013, 11:28 AM
#29
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Having the right cam for either the Vic. Jr. or Super Vic. is where 99% of people running these intakes go wrong. You can't expect a cam designed for a LS6/FAST intake to work well for a single plane intake. If you get the proper cam for whatever intake you decide on, it's going to perform the way you want it to. You won't have that loss of low RPM power/torque because the cam profile will be designed with valve events to keep that from happening. Plus, you'll have all the power you could ever ask for from 7,000 RPM's on. Don't let the misfortunes of people who just threw parts at their car in hopes of it making the power they thought it would lead you away from either of the Victor style intakes.
12-24-2013, 11:55 AM
#30
You would need to ask someone much smarter than me. I would ask Ed Curtis or Martin Smallwood and see what they think. I'm pretty sure they will both tell you that you're going to need something different to optimize that intake setup. Most single plane cams I've seen are ground around a 108 LSA and have a larger split than the MS3.
12-25-2013, 12:20 PM
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i thought that might be the case. i really wanted the MS3 for this build so im probably going to stick with the FAST, its designed for this set up. if i would have remembered the Vic jr i would have gone with a different cam.
12-25-2013, 05:24 PM
#34
its where you install it at, and where the valve events land...
there are a lot of high power, very fast, forced induction guys(especially guys with a turbo) that use a wider LSA to keep from having too much overlap when trying to spool a turbo.
if you install an MS3 on a 106 ICL, it does pretty good(though not ideal)
there are a lot better choices for a single plane cam
people run it, but I would not recommend it if you are trying to find a cam that will give you power across the entire rpm range
12-30-2013, 12:35 PM
#40
