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Hot Rod Magazine makes 1200HP on "junkyard" 4.8L... stock bottom end!
by
mattster03
on 22 Aug, 2011 12:57
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#1
by
cool
on 22 Aug, 2011 13:45
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That set the bar pretty high for Speedfabs truck...
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#2
by
wickedrx7
on 22 Aug, 2011 13:46
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Very cool.
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#3
by
thetastelingers
on 22 Aug, 2011 14:10
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That set the bar pretty high for Speedfabs truck...
Or a certain RX7 that is built on this site...
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#4
by
forcefed86
on 22 Aug, 2011 16:17
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There are many rumoprs that the bore to stroke ratio of the 4.8 is more favorable to a boosted engine. Now they need to do the same test with teh same kit on an iron 5.3, 6.0, and LS1 and L33.
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#5
by
mattster03
on 22 Aug, 2011 16:22
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There are many rumoprs that the bore to stroke ratio of the 4.8 is more favorable to a boosted engine. Now they need to do the same test with teh same kit on an iron 5.3, 6.0, and LS1 and L33.
that was my frustration with the article... i now need to see the results with the 5.3 and 6.0! I also would have preferred they fix the 'ignition' failure and run it to mechanical failure as they promised.
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#6
by
MPbdy
on 22 Aug, 2011 16:38
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The magazines are actually on a very tight budget now and do pay for the dyno time. If they ran out of time, which I'm sure they did, they can't just come back another day. There are a lot of runs there and a lot of data. Its one of the better stories I've seen done in quite a while.
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#7
by
forcefed86
on 22 Aug, 2011 17:22
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not to mention the engines condition before and after. Id like to get a mic reading before and after on the bearings after that. Its free to tear down the engine and inspect it!
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#8
by
BeasTT
on 22 Aug, 2011 18:22
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Their a2w's are shinier than mine
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#9
by
zbrown
on 22 Aug, 2011 21:10
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Very cool no matter how you look at it
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#10
by
DavidPHumes
on 22 Aug, 2011 21:12
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Yeah, this is pretty awesome I'd say. I'd never do it in my own person car but it's not my
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#11
by
forcefed86
on 22 Aug, 2011 22:54
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#12
by
dark-one
on 24 Aug, 2011 01:10
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well shit maybe I need to just find a 4.8 liter
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#13
by
383mazda
on 24 Aug, 2011 22:54
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Hmm... so should I gap my rings larger before I put my motor in? BTW the CXRacing / chinese turbos are good other than the piston rings - they like to fail quickly - rebuilding with good garrett rings would cost you less than $20, but you do need a way to put it back together and make sure it's balanced...
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#14
by
atomicsix
on 24 Aug, 2011 23:55
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Hmm... so should I gap my rings larger before I put my motor in? BTW the CXRacing / chinese turbos are good other than the piston rings - they like to fail quickly - rebuilding with good garrett rings would cost you less than $20, but you do need a way to put it back together and make sure it's balanced...
Probably depends on the power output you are going after. We have been well over 650 to the rear wheels with no regapping.
Standard gap on a mid nine run, and standard gap on some low nine runs with E85. These cars were all 3200lb to 3500 lb weight.
