3valve head for genIV
10-11-2006, 07:02 PM
#21
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Originally Posted by chuntington101
look at the new Merc 6.3 ltr 32valve V8! now thats a nice motor. and a much better comparision to the LSx than the ford unit!
thanks CHris.
10-11-2006, 07:12 PM
#22
Originally Posted by blown4.6
the 4v heads on 03-04 mod motors if im not mistaken flow 325 cfm which isnt great but its not bad.
10-11-2006, 07:16 PM
#23
Originally Posted by Dr Evil
The argument for pushrods is very difficult to make other than the fact that GM has invested a ton of $$$ to perfect it for use across the entire vehicle line.
10-11-2006, 09:10 PM
#24
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no you are wrong, OHC has very minimal benifits from pushrods
with pushrods you have only one cam, much cheaper
the motor is much smaller
simpler, so that means its more reliable
not as complicated, so more reliable, smaller and cheaper to make modify and maintain
there are very few pros to OHC imo, GM can make badass ohc motors if they want, see ecotec, northstar etc.
with pushrods you have only one cam, much cheaper
the motor is much smaller
simpler, so that means its more reliable
not as complicated, so more reliable, smaller and cheaper to make modify and maintain
there are very few pros to OHC imo, GM can make badass ohc motors if they want, see ecotec, northstar etc.
12-24-2006, 06:43 AM
#26
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Originally Posted by niphilli
The patent has been applied for:
http://www.corvettels9.com/6505589.pdf
http://www.corvettels9.com/6505591.pdf
http://www.corvettels9.com/6505592.pdf
My thoughts on the single cam in block is pretty neat, looks like a lot of valvetrain mass, but pretty neat. The dual cam in block seems like kindof a waste (why not go OHC if you are going to that extent, but I dont know all of the detals/advantages at this point.
http://www.corvettels9.com/6505589.pdf
http://www.corvettels9.com/6505591.pdf
http://www.corvettels9.com/6505592.pdf
My thoughts on the single cam in block is pretty neat, looks like a lot of valvetrain mass, but pretty neat. The dual cam in block seems like kindof a waste (why not go OHC if you are going to that extent, but I dont know all of the detals/advantages at this point.
That is why they didnt go with DOHC. They kept the cams in the block and used modified lifters to disable cylinders. You can't do that with overhead cams.
I suppose the reason they went with 3 valve instead of 4 valve is so you can go with larger valves I guess lessening the shrouding of the valves, and to reduce valvetrain mass (one lobe for the two intake valves, one lobe for the one exhaust valve) and easier to package in the tiny LSx heads. Go GM
This together with the VVT(cam phaser located on the timing chain sprocket) will create a more powerful, efficient engine = HP+ & MPG+
Pretty sweet, I have been waiting for GM to get on the ball with their powertrain technology!
01-01-2007, 06:55 PM
#27
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The main problem with fords is the small bore. It really limits the size of the valves. And Dr. Evil last time I checked mach1 motors make just about the same hp as your ls1 touched by god so I guess ford motors arent all that bad.
01-02-2007, 12:32 PM
#28
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Originally Posted by blown4.6
The main problem with fords is the small bore. It really limits the size of the valves. And Dr. Evil last time I checked mach1 motors make just about the same hp as your ls1 touched by god so I guess ford motors arent all that bad.
