Barry Grant LSx Cross-Ram?
 

If my memory serves me right, there was some hype about BG coming out with a cross-ram style EFI manifold for the LSX motors. Has anyone anything on this? Any news?

Don't know about BG but Beck makes a beautiful cross-ram.
However, all my research into sheet metal manifolds for the LSx has been somewhat disappointing. None have matched the Fast in performance for the LS1/2. And that's a non-ported manifold.
The LS7 can be improved with porting, Tony Mamo @ AFR is doing mine this month.
The sheet metals are all heat sinks as opposed to stock.
Several companies and individuals are working on the problem. See LS1tech.com for updates.

you really don't need/shouldn't use a sheet manifold intake on an LSx unless you are building either a very large motor or running very high boost levels that require the use of a 100+mm throttle body. There are too many other choices that work great. You've got carb style intakes and ported plastic ones. FAST will have a new intake coming out in a few months for the L92/LS3 that should prove to be great. These engines also don't need that much air if you drive it on the street. A 95mm throttle body is the max you want to use for a street car and those are reserved for the stroker motors pushing 420 cu in plus. Anything larger has bad off idle/off throttle characteristics and is sluggish. It'll only like WOT, nothing in between. You size the manifold accordingly and it becomes obvious the flow potential of a sheet metal one is not needed. People often lose track of air velocity in search of pure volume which leads them to believe bigger is better. Velocity must be maintained.

This new FAST manifold is designed to work with either a 90 or 92 to 102 mm throttle body. It should easily support any stroker motor designed for street driving.

Oh and no, I've heard nothing about this BG intake. Sorry to not stay on topic

Picture of the unit:

http://vorshlag.smugmug.com/photos/1...11_egTat-L.jpg

Anyone got any more information?

WOW that's nice looking

Rodger

$$$$$$$$$damn$$$$$$ that thing is sweet

LS-1/2 "Cross Ram"
 

Dynatek Racing is making a "cross ram" for a 1960 Corvette, with their 48IDF EFI throttle bodies.
This is made to fit the LS-1/2 head.
Their TBI's have the electronic injectors hidden inside the casting.

Would like to hear more about it!

Can this really be true : ( found on Dynateks web site )


No programming or dyno tuning required :wow:

Self-learning computer system automatically defines fuel tables :bow:

That Barry Grant unit looks nice

I'd also like to learn more about the Dynatek set up!!!

LS -"Dyno Book"
 

Their chief project engineer is Richard Holdener.

This is the same person the created the LS-1, LS-2, LS-x, dyno test book of over 75 dyno tests.

Many items were tested, heads, cams, intakes, superchargers, turbochargers, exhausts, etc.

This book should be aquired by all LS-x users.

Lance

Groovey Jay:

That LS Cross Ram is beautiful. Can you post a link to the right person on how someone can get one for a LS3 427?

I could find 4 g's to buy one.

Does it work with Drive by wire technology? How is the engine turned? What increase in power did you get. I have heard you can get 70-120 hp gain.

You are a lucky man.

Thanks,

Ty

Barry Grant/Demon Carbs went bankrupt in 2011. Apparently, they were purchased by the same company that owns Holley. There's no telling what happened to this intake. I didn't find it on the Demon website.

Trey, Ty, the manifold in the picture may have had Barry Grant's name associated with it, but that is probably just because he was the first to bring one over from England. I have one and it is made by Jenvey, hence their name on the valve covers and brochure in the forefront of the picture.

The manifold uses a cable to actuate the throttle bodies. It is available for for the whole LS range these days, and can be purchased for $3500 from Jenvey's U.S. Distributor, Emerald Performance.

Is this in your camaro? Did you get rid of the PMC manifold? Any pics?

FYI- I believe the Harrop Hurricane is the only LS ITB set up running an ETC .

http://www.harrop.com.au/eng_detail....d=99-AMFD11198

If theres another out there, let us know :thumbsup:

Rich

Thanks Matt. Never heard of Jenvey before. Looks like they have some neat stuff though.

Greg, I did get rid of the PMC manifold when I changed the engine over to a 454 based LS7. It is a long story as to why I made all of the changes, but initially I was looking at building a smaller displacement motor, and wanted the throttle response and horsepower gained by an individual throttle body setup.

Currently I have a FAST 102 on the engine, which is mostly just to get the engine running so that I can enjoy driving the car a bit. The Jenvey manifold has a throttle position sensor, but needs to be drilled and tapped with fittings leading to a vacuum distribution block if you want an IAC. I still need to get a hold of those parts. If I had to do it all over again, I might have just bought the harrop. I don't mind tinkering with things, but a dollar vs time comparison would probably net the two about equal in my book. I'm sure I will be happy with the Jenvey after I get it running.

Thanks for the response and input Matt:thumbsup: