fastest 4.8 !
04-02-2012, 12:41 PM
#41
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Location: south south texas
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Im just wondering, i saw where you posted how the 4.8 gets better gas mileage than the 6.0...how good of gas mileage are you getting with a 228/3600 combo in a less than 300 cubic inch motor? Personally, if youre worried about gas mileage i wouldnt be driving the truck daily therefore that tidbit of info would be pointless? Just my .02
Also, idk if im just biased or what but i dont really see the point of trying to push a 4.8 na? In the end itll just be cheaper to either go fi or swap in a bigger inch motor. I mean a pretty nasty setup(minus the 4.8) only running 13.5s? Im hoping for less than that with just a small cam 5.3 and 3200 converter, maybe a step up in gear
The way I see it is 11s in a 6.0 gets boring too, I really enjoy pushing things to there limits and seeing how fast it gos for what it is, 13.5 is fun to race if it shouldnt be that fast. But once the goal is met I like to move on, we have done a few stock 6.0 swaps into a singe cab and they get 18mpg if they are just tuned, my bros had 4.56 gears and did 18 on a trip.
I found an old article and it was a guy Charlie from Vengance Racing. 4.8 rcsb with TFS 205 heads and TFS cam specs around 220 @.050. Not sure about converter etc, but said it went 12.80 @110 which sounds like with better converter, suspension etc could have went low 12's.
damn 110 is fuken nice for 4.8 na...its the heads he is runnin..i currently have stock 862s
04-05-2012, 11:14 AM
#42
@ bmd_CL, If a guy had a 500ci LSX engine and ran an 11.0, nobody would even pay any attention to it, but if a guy had a 4.8L that ran a low 12, it would get a lot of attention! I'm one of those guys, I just like to see how far I could push a certain engine... It's not about how fast I can run but rather how fast I can run with such and such setup.
Props to the OP on trying to push a 4.8 to the limit N/A!
Props to the OP on trying to push a 4.8 to the limit N/A!
And if/when it does blow up, you're only out a stock engine...
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