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View Full Version : Any LSX experience here??


supergass
09-20-2009, 05:15 AM
I have caught the LSX fever!!! I see AFR has heads for the LSX that are cathedral ports that flow in the 350s at 600 lift! Wow Im there, how awesome is that! I have never been on the front end of such a new development but I think Im going to have to bite off a wad of this. The first thing that raised my eyebrows was when my head porter (who does head work for the Elliots and GM) said that Ernie built a dodge street motor over 400 inches that made 800hp with this late technology nascar cyl heads they are developing. I think the LSX stuff could do the same thing if I could get around a expensive learning curve. Its already going to be expensive enough. I dont think a 427 LSX will have any trouble at all with a 245cc head on pump gas. Not that head especially. Who has some experience with this platform?/

Thanks

OneBadGMC
09-20-2009, 08:17 AM
http://www.gmperformanceparts.com/_res/pdf/MagazineArticles/HotRod_SpeedPartsTestingLS7.pdf

Shouldn't be too hard. There's an article from Feb 06 where they got 600 HP from a cam, headers and swapping to a carb on an LS7.

chevynovaman
09-20-2009, 06:01 PM
I really like the LS engines... They take alot of abuse and can be driven daily... My guess on pump gas you will need a 200 shot of NOS or more to get the 8 hundred horsepower... keep us posted on the results, I want to hear about it... novaman

supergass
09-20-2009, 07:02 PM
Im sure it will take 440 inches and a great head porter to get it but it is a real long shot

cboggs
09-27-2009, 12:37 PM
http://speedtalk.com/forum/viewtopic.php?t=16933&highlight=lsr

have a look at this, ..

chevynovaman
09-28-2009, 03:11 PM
WHAT KIND OF INDUCTION ARE YOU GOING TO RUN... CARBED, FUEL INJECTED, SUPERCHARGED, THIS WILL MAKE A BIG DIFFERENCE..

supergass
09-28-2009, 06:05 PM
Carberator

OneBadGMC
09-28-2009, 06:52 PM
http://www.raceflowdevelopment.com/RFD-heads.htm

Curtis Boggs just came out with a porting program for an LSx designed around making 1100 HP n/a.