The Little 4.8 That Could. 488 Rwhp On The Dyno!
Dec 27, 2004 | 11:34 AM
#1
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From: Texas where Bigger is Better
The Little 4.8 That Could. 488 Rwhp On The Dyno!
HOW FAR CAN THE 4.8 GO? I am pretty sure I found out this past weekend. Tigerfan187 & myself made a trip to the dyno just to see where we were at. I ended up making a couple of difeerent passes with different shots of the gas, here is how the ended up.
the truck makes about 300 rwhp (294) @ 6300 rpms on straight motor with pump gas & 34 degrees of timing
100 wet tnt shot made 390rwhp & 410 ftlbs of torque
100 wet tnt with 70(.42jet) nos dry made 443 rwhp & about the same amount of torque
100 wet tnt with a 120 nos dry made 488 RWHP WITH 22 DEGREES OF TIMING ON STRAIGHT PUMP GAS, NO DETONATION!
Ther is one draw back, I melted 5 of my tr6's the other three were fuel fouled severly. I replaced the spark plugs & everything is fine now but it fu*&ed them up pretty bad.
Has anyone sprayed more! who has the highest 4.8 dyno numbers?
the truck makes about 300 rwhp (294) @ 6300 rpms on straight motor with pump gas & 34 degrees of timing
100 wet tnt shot made 390rwhp & 410 ftlbs of torque
100 wet tnt with 70(.42jet) nos dry made 443 rwhp & about the same amount of torque
100 wet tnt with a 120 nos dry made 488 RWHP WITH 22 DEGREES OF TIMING ON STRAIGHT PUMP GAS, NO DETONATION!
Ther is one draw back, I melted 5 of my tr6's the other three were fuel fouled severly. I replaced the spark plugs & everything is fine now but it fu*&ed them up pretty bad.
Has anyone sprayed more! who has the highest 4.8 dyno numbers?
Dec 27, 2004 | 01:09 PM
#7
On The Tree
Joined: Oct 2003
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From: Fairfield Ca
Have you taken a look, with a bore scope in the cylinders where the burned plugs were? When i was running a dry shot on a 4.8 i burned 3,5&7 plugs. I put in a set of new plugs in it and it ran fine. just for the heck of it i pulled them back out and found that i had burned the top of #5 & 7 pistons. #5 had light speckling and #7 had burned the outter part of the piston to the top ring.
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Dec 27, 2004 | 01:26 PM
#8
Originally Posted by CRAZYCUTER4.8
HOW FAR CAN THE 4.8 GO? I am pretty sure I found out this past weekend. Tigerfan187 & myself made a trip to the dyno just to see where we were at. I ended up making a couple of difeerent passes with different shots of the gas, here is how the ended up.
the truck makes about 300 rwhp (294) @ 6300 rpms on straight motor with pump gas & 34 degrees of timing
100 wet tnt shot made 390rwhp & 410 ftlbs of torque
100 wet tnt with 70(.42jet) nos dry made 443 rwhp & about the same amount of torque
100 wet tnt with a 120 nos dry made 488 RWHP WITH 22 DEGREES OF TIMING ON STRAIGHT PUMP GAS, NO DETONATION!
Ther is one draw back, I melted 5 of my tr6's the other three were fuel fouled severly. I replaced the spark plugs & everything is fine now but it fu*&ed them up pretty bad.
Has anyone sprayed more! who has the highest 4.8 dyno numbers?
the truck makes about 300 rwhp (294) @ 6300 rpms on straight motor with pump gas & 34 degrees of timing
100 wet tnt shot made 390rwhp & 410 ftlbs of torque
100 wet tnt with 70(.42jet) nos dry made 443 rwhp & about the same amount of torque
100 wet tnt with a 120 nos dry made 488 RWHP WITH 22 DEGREES OF TIMING ON STRAIGHT PUMP GAS, NO DETONATION!
Ther is one draw back, I melted 5 of my tr6's the other three were fuel fouled severly. I replaced the spark plugs & everything is fine now but it fu*&ed them up pretty bad.
Has anyone sprayed more! who has the highest 4.8 dyno numbers?
congrats crazy!
Dec 27, 2004 | 01:29 PM
#9
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From: Texas where Bigger is Better
Originally Posted by NXRICKY
Why were you running both a dry and a wet?
Ricky
Ricky