Has anyone tried pushing an LY2 to it's limits?
04-11-2012, 06:54 PM
#1
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Has anyone tried pushing an LY2 to it's limits? I have been running a lm7 with 76mm making 690whp in my fox drag car. I have been toying with the idea of playing around with an 07 up 4.8L (LY2) to see if it could make / hold more power in near stock form than my lm7 with same mods (not that I think I have even hit its thresh hold yet) I do still plan on pushing the lm7 a little farther soon. Anyways heres the things I like about the ly2 after looking into the specs a little. Stronger rods, floating wrist pins, better flowing heads (243's-799's)than (706's-862's), 9.1to1 comp perfect for higher boost, better rod to stroke ratio. Im thinking the right cam / valve train / turbo setup and supporting fuel system some big numbers could be made. What are your guys thoughts?
04-11-2012, 08:02 PM
#2
I have been running a lm7 with 76mm making 690whp in my fox drag car. I have been toying with the idea of playing around with an 07 up 4.8L (LY2) to see if it could make / hold more power in near stock form than my lm7 with same mods (not that I think I have even hit its thresh hold yet) I do still plan on pushing the lm7 a little farther soon. Anyways heres the things I like about the ly2 after looking into the specs a little. Stronger rods, floating wrist pins, better flowing heads (243's-799's)than (706's-862's), 9.1to1 comp perfect for higher boost, better rod to stroke ratio. Im thinking the right cam / valve train / turbo setup and supporting fuel system some big numbers could be made. What are your guys thoughts?
04-12-2012, 12:50 AM
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I'm going to upgrade to 80# from 60# injectors and 243 heads on my lm7 and turn the boost up to somewhere around 21-22psi shooting for 800+whp. It made 665@15psi. We will see what happens but if it spits parts I think ill try a 4.8 next.
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04-13-2012, 07:06 AM
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04-13-2012, 11:12 AM
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maybe one day we will throw it on my friends mustang dyno.
it would be pretty ******* fast in something 3k lbs lol
