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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
JMB, plenty of results out there. This isn't a basic NA manifold. Cars with it are typically making 1300-1800rwhp.
I guess after listening to all of the debate above about how a manifold doesn't work that much differently between an NA one and FI I was hoping that someone beside me that has spent close to $8K independently testing LS7 intakes could provde NA results lol!
Do you have one? I plan to re-baseline my NA 700 RWHP LS7 Monte here in Phoenix shortly so maybe yes if we can convince the dyno guys to let me swap it at their shop and re-dyno.....I'm sure we can get plenty of people here to encourage them to do so since I also have the results of a stock Holley High Ram already and we can do basically a direct extrapolated comparison once we re-baseline my set-up.
Do you have one? I plan to re-baseline my NA 700 RWHP LS7 Monte here in Phoenix shortly so maybe yes if we can convince the dyno guys to let me swap it at their shop and re-dyno.....I'm sure we can get plenty of people here to encourage them to do so since I also have the results of a stock Holley High Ram already and we can do basically a direct extrapolated comparison once we re-baseline my set-up.
Wouldn't expect it to do wonders. Shearer said dual plenum setups like this are specifically designed for forced induction. I predict it does better than the short little runner intakes, but not as good as a hi-ram if you wanted to do a mild NA setup with this. Then again, might as well just run a MSD at that point unless you have a cowl hood already or application where this fits easy.
Wouldn't expect it to do wonders. Shearer said dual plenum setups like this are specifically designed for forced induction. I predict it does better than the short little runner intakes, but not as good as a hi-ram if you wanted to do a mild NA setup with this. Then again, might as well just run a MSD at that point unless you have a cowl hood already or application where this fits easy.
I think you're probably right...it certainly wont do any better than a hi-ram; but if it performs better than an MSD, it presents an interesting option for the NA guys that don't want to destroy a hood. Perhaps even an interesting option for some of these big cube builds we're seeing. I guess I want to see how far behind a hi-ram will it end up performing on a strong NA build like JMB's.
There are hoods that fit the highram, they just look stupid IMO. So if you want a more normal hood, yep.
Just wanted to make it clear that it doesn't fit a stock hood, because I constantly am being bugged about that. I probably will cut the stock hood just to see what it looks like. Just the billet piece going through, especially if I anodize it black may look great.
There are hoods that fit the highram, they just look stupid IMO. So if you want a more normal hood, yep.
I've seen one...and yeah, it wasn't the nicest thing I've ever seen to put it mildly.
Originally Posted by Unreal
Just wanted to make it clear that it doesn't fit a stock hood, because I constantly am being bugged about that. I probably will cut the stock hood just to see what it looks like. Just the billet piece going through, especially if I anodize it black may look great.
Might look decent...kind of like the Callaway S/C lid that protrudes through the hood of a C7.
My thought process is that hi-ram guys either have to (likely) cut an aftermarket or stock hood; so many save the upfront expense and just cut the stock hood. But at some point, that hi-ram is usually coming off...either because they change the parameters of the their build, or they're looking to turn the car. Either way, they no longer have their unmolested OE hood; so they need to source another hood...either an aftermarket or find a used un-cut OE hood. So its pay now, or pay later in my mind. If this shearer fab turns out to be a good compromise between hi-ram and MSD performance-wise, and fits under a few different aftermarket hoods...if and when the owner looks to de-mod or get out of the car altogether, they have an OE hood to swap back on, and can still sell the aftermarket hood if they choose to. Maybe I'm overthinking it though...
I was thinking the same thing with the Callaway. In fact was thinking of having a trim ring made that can go on the hood around the intake so cutting doesn't have to be exact.
What does everyone think about the Visner billet lid for the Holley hiram. By looking at it you can Tell it has more Plenum volume. Plus at the throttlebody it doesn’t get skinnier then opens up to the area it looks like it has a bellmouth Bello which keeps it larger all the way to the Intake. Has anyone had experience with this company
So any results with this intake? Do you think it should make more than the MSD? And do you think it should make more than the holly Hiram?
It is made for boost, it works great for boost. Plenty of 1300-1500rwhp cars with it. Yes it will make more than a MSD at 20+psi because the MSD will shatter into pieces. No it will not make more than a high ram, or a MSD on a N/A build.
Enjoy your car, go run some 9s, do some 170+ 1/2 miles, get it to the point where it puts the power down, and wait for all the testing that is coming up on the fast, visner, and other intakes that people are doing, unless you want to just burn more money.
02-18-2019, 09:34 AM
