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Shearer Fab Surge Intake?

 
Old 07-08-2019, 12:57 AM
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Default Shearer Fab Surge Intake?

Please, if anyone has any info on this, please reply. I am seriously thinking about one of these for a high rpm NA application, but can find almost zero dyno or real world results on them. Thanks
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Old 07-08-2019, 10:39 AM
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That could be because at $1600 for the intake, hardly anyone is using it.
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Old 07-08-2019, 12:20 PM
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Shearer does some very good work. I've worked on a few cars that have his stuff on them and they've never failed to impress.
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Old 07-08-2019, 01:11 PM
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Not many results from any of the new intakes: BTR, Tick, SF, etc.. Real question is do any of them outperform the cheap and highly available Hi-Ram and Pro-Flow style manifolds.
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Old 07-08-2019, 01:26 PM
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The only test I've seen on the BTR intake was against an LS6 intake. They only revved it out to like 6400, but the LS6 had the BTR intake beat everywhere.
They all become circumstantial anyway. Similar power curves. You make the choice based on looks, fitment, and price, and (unfortunately) brand loyalty.
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Old 07-08-2019, 01:52 PM
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OP, what are your goals for your engine?
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Old 07-08-2019, 02:03 PM
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Hi all, I ended up calling Shearer today and he said the surge intake does not work well on NA application. It was really designed for boost to even out the front/rear flow and works well with that. I am planning a NA 4.155 bore stock stroke build w/ custom cathedral port heads. Finding an intake that works is a pain in the ***. Motor is going in a TBSS. I would slap a Hi Ram on it and call it done, but it doesn't fit. Heads are going to flow close to 400cfm, so intake needs to keep up. I prefer a slightly longer runner, I am trying to keep the torque up through the mid range. Any recommendations?
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Old 07-08-2019, 07:54 PM
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The Edelbrock Pro-Flo is my personal favorite cathedral intake for the time being.
Almost identical power/torque to the Hi-ram. 1 piece design, slightly better hood clearance, can be found cheaper.
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Old 07-08-2019, 08:43 PM
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Originally Posted by JoeNova View Post
The Edelbrock Pro-Flo is my personal favorite cathedral intake for the time being.
Almost identical power/torque to the Hi-ram. 1 piece design, slightly better hood clearance, can be found cheaper.
Yup, I ran one as it cleared my stock hood. Its just shorter then hiram to fit a lot more places and works well.
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Old 07-09-2019, 10:11 PM
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I looked at the Edelbrock and not impressed. It's a cheap 1 piece casting. Would have to cut open to port it proper and runners are short. May as well get a Sniper and make it work. I think a ported TBSS intake will out run most of the ones on the market, but have never seen any tests anywhere w/ one. Anybody running a Frankenstein Alien intake? That looks like the winner, but have never seen any testing either.
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Old 07-10-2019, 01:48 PM
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ive been looking at the plazmaman intakes for my l92 head 414....but its a bit costly.....but it looks gorgeous.
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Old 07-10-2019, 02:07 PM
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TBSS and Edelbrock have been compared:

TBSS Intake Results:
Construction: Composite
Runner Length: 9.5 in
Throttle Opening: 3.45 in
Throttle-Body Size Tested: FAST 90 mm
Fuel Rail: FAST (modified mounts)
Injectors: Holley 75 lb
Peak Power: 562 hp at 7,000 rpm
Peak Torque: 497 lb-ft at 5,000 rpm
Ave HP (3,0007,000): 444.4 hp
Ave TQ (3,0007,000): 464.6 lb-ft
TQ at 4,000 RPM: 469.5 lb-ft

Edelbrock ProFlow Results:
Construction: Cast aluminum
Part Number: 71393
Runner Length: 6.25 in
Throttle Opening: 3.55 in
Throttle-Body Size Tested: FAST 90mm (and Edelbrock 90mm)
Fuel Rail: Edelbrock
Injectors: Holley 75 lb
Peak Power: 593 hp at 7,000 rpm
Peak Torque: 474 lb-ft at 5,700 rpm
Ave HP (3,0007,000): 431.6 hp
Ave TQ (3,0007,000): 448.3 lb-ft
TQ at 4,000 RPM: 438.7 lb-ft
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Old 07-11-2019, 07:47 PM
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I have seen that comparison. It reinforces what I thought. The Edelbrock does not really make more power, just shifts the powerband up because the runner is shorter. So no real quality cathedral intakes tested?
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Old 07-12-2019, 03:27 AM
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Originally Posted by DualQuadDave View Post
I have seen that comparison. It reinforces what I thought. The Edelbrock does not really make more power, just shifts the powerband up because the runner is shorter. So no real quality cathedral intakes tested?
Originally Posted by DualQuadDave View Post
Please, if anyone has any info on this, please reply. I am seriously thinking about one of these for a high rpm NA application, but can find almost zero dyno or real world results on them. Thanks
The Edelbrock seems to be exactly what you were after. If you rev high enough, then your RPM after every shift will still be in an area where the Edelbrock makes more power than the TBSS intake.
You can't ask for an intake for a high RPM app and then decide that the one which makes more torque at 3000 RPM is the best choice..
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Old 07-12-2019, 11:19 AM
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Originally Posted by DualQuadDave View Post
I have seen that comparison. It reinforces what I thought. The Edelbrock does not really make more power, just shifts the powerband up because the runner is shorter. So no real quality cathedral intakes tested?
31hp isn't more power? I've personally gone from a truck intake to the proflow and picked up MPH in the quarter.

Originally Posted by JoeNova View Post
The Edelbrock seems to be exactly what you were after. If you rev high enough, then your RPM after every shift will still be in an area where the Edelbrock makes more power than the TBSS intake.
You can't ask for an intake for a high RPM app and then decide that the one which makes more torque at 3000 RPM is the best choice..
Exactly! Plus 7k RPM isn't even high, especially for a purpose built NA application. Most every basic LS3 and LS7 shifts higher then that and fancy ones WAY higher.
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Old 07-12-2019, 12:33 PM
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Edelbrock lost torque everywhere in the powerband compared to a stock TBSS. It picked up power at peak and that's it. I bet in the car it would not go any faster unless it had a 4000rpm converter in it. I have spoken with the guys doing the heads for me and they highly recommended the Fast 102 truck. I think I am going to try a Peak Speed TBSS w/ 102mm flange. I don't think it'll be worse and it'll make more torque across the band guaranteed.
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Old 07-12-2019, 12:47 PM
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Originally Posted by DualQuadDave View Post
Edelbrock lost torque everywhere in the powerband compared to a stock TBSS. It picked up power at peak and that's it. I bet in the car it would not go any faster unless it had a 4000rpm converter in it. I have spoken with the guys doing the heads for me and they highly recommended the Fast 102 truck. I think I am going to try a Peak Speed TBSS w/ 102mm flange. I don't think it'll be worse and it'll make more torque across the band guaranteed.
You sound like your building a mediocre street car rather then a high rpm NA track car. Perhaps we read your original post wrong. Because at the track a properly setup car is never below 6k RPM anyways so why would you care what it makes below that? I wouldn't run less then a 4000 converter either, all my NA builds have been higher or manual.
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Old 07-12-2019, 01:53 PM
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Correct it is a daily street car. 4500lbs TBSS 2wd
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Old 07-12-2019, 02:00 PM
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Originally Posted by DualQuadDave View Post
Correct it is a daily street car. 4500lbs TBSS 2wd
Ohh lol... that changes things a bit, so its not a high revving NA build. Its a damn truck lol In that case sure use the lower RPM manifold. Some of our cars aren't too much off you weight though, 4.500 is pretty light for a truck when sedans are in the 4200-4400lb range.
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Old 07-12-2019, 02:14 PM
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I am looking to have a 72-7500rpm shift point. Peak somewhere around 7000 or just under. For now, I have a fresh 6.0 LS2 in it w/ forged rods/pistons, Lingenfelter cam. Going to put some custom Greg Good cathedrals on it and run as is for a minute while I build a 434 short block. Will probably re-approach the intake w/ new short block as the cubes make a night/day difference, but will cross that road when I get there. Thanks for the input, sorry I was not clear to begin with.
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