LSX Thunder
Thread Starter
Banned
Joined: May 2023
Posts: 393
Likes: 55
LSX Thunder I'm using an untraditional use of the LSX identification. The Hot Rod Company of Green Acres, Washington's nomenclature. Mine started as a Texas Speed lightened aluminum (not iron) 5.3 LS block, (31 pounds less than OEM aluminum), stroked to 6.3 with a new crankshaft, Racetech pistons and forged rods, Air Flow Research heads and Texas Speed cam. The build was designed to make over 300 ft lbs of torque just off idle and 650 by 2100 rpm, holding that to 6100 rpm, then it falls off a cliff. Designed for OEM cast iron exhaust manifolds and full OEM exhaust with a balance tube added just after the cats. Dyno techs said it was the quietest car they have ever dynoed. 11.2" wide Michelin Pilot Super Sports 285/35-18's required rolling the 4 fenders, lightweight 18X9.5's with a convex design. Engine is in the Australian Caprice with the long wheelbase. ~six inches longer than a 5th gen Camaro wheelbase, ~8" longer than a 6th gen.
Thread Starter
Banned
Joined: May 2023
Posts: 393
Likes: 55
Nice way to describe it.
I wanted to refresh the 6l80e and keep the 2.91 final drive and have instant, torque monster response. That car deserves it. Holden went a little crazy toward the end and finally built their LS 3 "Limousine", determined to have a car with a 50/50 weight distribution front and rear, and side to side. No four-door sedan they ever built came closer than 53/47. Not unlike the 53/47 two-door 5th gen Camaro. The Commodore/G8/Chevy SS are all 53/47. The Australian market Caprice Royale was a very expensive car from 2011 to the end in 2017, marketed as a luxury limousine, available perfectly balanced with an LS3, and slightly heavier LS7 and LS9's also available. HSV's. The Hot Rod Company promised 650 ft lbs torque and 650 HP before 6300 RPM. Independently dyno'd by Revolution Street Cars of Las Vegas, NV confirmed it. Imagine the quietest such car. The Driveshaft Shop of N.C. required exact measurement to fabricate a one-piece aluminum driveshaft that weighs 18 lbs to replace the two piece steel one at 36 lbs. HSV carefully spec'd extensive chassis bracing that retains the 50/50's WD while making the chassis ultra-rigid. Michelin Pilot Super Sports on lightweight 18X9.5" wheels in 285/35-18. Odd fact, Michelin makes a Pilot Sport4s in that size that is 10.2" wide and the Pilot Super Sport which is 11.2" wide. Odd.
I wanted to refresh the 6l80e and keep the 2.91 final drive and have instant, torque monster response. That car deserves it. Holden went a little crazy toward the end and finally built their LS 3 "Limousine", determined to have a car with a 50/50 weight distribution front and rear, and side to side. No four-door sedan they ever built came closer than 53/47. Not unlike the 53/47 two-door 5th gen Camaro. The Commodore/G8/Chevy SS are all 53/47. The Australian market Caprice Royale was a very expensive car from 2011 to the end in 2017, marketed as a luxury limousine, available perfectly balanced with an LS3, and slightly heavier LS7 and LS9's also available. HSV's. The Hot Rod Company promised 650 ft lbs torque and 650 HP before 6300 RPM. Independently dyno'd by Revolution Street Cars of Las Vegas, NV confirmed it. Imagine the quietest such car. The Driveshaft Shop of N.C. required exact measurement to fabricate a one-piece aluminum driveshaft that weighs 18 lbs to replace the two piece steel one at 36 lbs. HSV carefully spec'd extensive chassis bracing that retains the 50/50's WD while making the chassis ultra-rigid. Michelin Pilot Super Sports on lightweight 18X9.5" wheels in 285/35-18. Odd fact, Michelin makes a Pilot Sport4s in that size that is 10.2" wide and the Pilot Super Sport which is 11.2" wide. Odd.
