GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |
View Poll Results: Which 1/4 mile time and rwhp bracket will the truck fall into?
530-550rwhp / 11.6-11.8 1/4 mile
21.21%
551-600rwhp / 11.35-11.59 1/4 mile
42.42%
601-625rwhp / 11.00-11.34 1/4 mile
24.24%
626-?????? / ?????-10.99
12.12%
Voters: 33. You may not vote on this poll

What does everyone think the 4.8 can really produce????

Old Jan 10, 2006 | 08:07 PM
  #11  
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Originally Posted by 8ALTNG
well it has already made 530rwhp running out of fuel and at 17lbs of boost. mjhoward only made 27 more rwhp than I did with my radix stock 4.8 engine and mine was through a auto, his was through a 5-speed
Like I said I hope you do badass cause no one thinks the 4.8 can do much including myself. If it made 531 already then hell 600 shouldnt be so hard to do IMO.
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Old Jan 10, 2006 | 08:10 PM
  #12  
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Dont always under-estimate the little fella

You'll be in the low low 11's if you can hook and cut some 1.75-1.85 60' times.. bc the top end and horse power is there
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Old Jan 10, 2006 | 08:10 PM
  #13  
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Originally Posted by 1slow01Z71
Likcause no one thinks the 4.8 can do much including myself.
Thats one of the main reasons I do it BC when I came to this site (well back then it was LS1tech too) everyone said I was crazy for building a 4.8. And I proved them wrong. And they still do and I still prove them wrong
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Old Jan 10, 2006 | 08:12 PM
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Originally Posted by 8ALTNG
Thats one of the main reasons I do it BC when I came to this site (well back then it was LS1tech too) everyone said I was crazy for building a 4.8. And I proved them wrong. And they still do and I still prove them wrong
You Tell them..... 4.8 haters
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Old Jan 10, 2006 | 08:18 PM
  #15  
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I think the stock motor with heads and cam will see 550+ rw and a completely built motor the sky is the limit Supra's make 1200 with less cubes.
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Old Jan 10, 2006 | 08:41 PM
  #16  
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Originally Posted by 02sierraz71_5.3
I think the stock motor with heads and cam will see 550+ rw and a completely built motor the sky is the limit Supra's make 1200 with less cubes.
They are two totally different beasts. And im not going to be running 36= lbs of boost like the supras do
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Old Jan 10, 2006 | 08:41 PM
  #17  
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Originally Posted by 8ALTNG
Thats one of the main reasons I do it BC when I came to this site (well back then it was LS1tech too) everyone said I was crazy for building a 4.8. And I proved them wrong. And they still do and I still prove them wrong

I like your attitude!! Prove em wrong!
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Old Jan 10, 2006 | 08:52 PM
  #18  
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Originally Posted by 8ALTNG
well it has already made 530rwhp running out of fuel and at 17lbs of boost. mjhoward only made 27 more rwhp than I did with my radix stock 4.8 engine and mine was through a auto, his was through a 5-speed
I really don't think that the headers and cam really help out the 293 that much. It doesn't really need them as bad as the larger engines. I never got to try a 2.75 pulley. What was the smallest pulley you ran with the radix and what was your rwtq #'s.

I see you putting down somwhere in the 580-600rwhp range with the 18-20lbs. I hope it is more though!
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Old Jan 10, 2006 | 09:09 PM
  #19  
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3.25 inch pulley. 430rwt
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Old Jan 10, 2006 | 09:11 PM
  #20  
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27 more HP and 59 more TQ. That's about right for the extra mods I had.
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