ZR-1 Net Registry Forums - View Single Post - U.D. pulleys & 160 T-stat G.P.

Greybeard ZR1 · 10-03-2007

Those dyno numbers on the company website should be highly suspect. Randy's magic 405 hp. LT5 now makes 482 hp. (482-15%=409.7rwhp.), with the addition of headers and exhaust, a lightweight flywheel, some coolant parts, underdrive pulleys, and a dyno tune. yeah...right.
Guys, people have been tweaking the LT5 for more than 15 years now, and nobody has gotten numbers like that. Not without getting out the old grinder and hogging out the intake flow.

He claims to be getting nearly 460 hp. by just slapping on headers, exhaust, chip, and that magic 160 deg. thermostat. How many of you already have that equipment on your car? I do. Is anyone getting 460 hp.?... c'mon, let's get real.

I applaud his "Project Objectives" - "Obtain maximum horsepower from a stock LT5 utilizing true "bolt-on" performance parts, and without any porting or internal engine modifications." It's just that I don't buy the posted results.

Perhaps they should take that garage queen 5K mi. 95' out to the local dragstrip and post some trap times to back up all the horsepower it supposedly has?

P.S.-Back in the last century, when I bought my 160 deg. stat from A.O. Engineering, it was $35. And I thought that was a ripoff.
Has anyone asked Randy why these are so expensive?

10-03-2007	#23
Greybeard ZR1 Join Date: Jun 2005 Posts: 14	Re: U.D. pulleys & 160 T-stat G.P. Those dyno numbers on the company website should be highly suspect. Randy's magic 405 hp. LT5 now makes 482 hp. (482-15%=409.7rwhp.), with the addition of headers and exhaust, a lightweight flywheel, some coolant parts, underdrive pulleys, and a dyno tune. yeah...right. Guys, people have been tweaking the LT5 for more than 15 years now, and nobody has gotten numbers like that. Not without getting out the old grinder and hogging out the intake flow. He claims to be getting nearly 460 hp. by just slapping on headers, exhaust, chip, and that magic 160 deg. thermostat. How many of you already have that equipment on your car? I do. Is anyone getting 460 hp.?... c'mon, let's get real. I applaud his "Project Objectives" - "Obtain maximum horsepower from a stock LT5 utilizing true "bolt-on" performance parts, and without any porting or internal engine modifications." It's just that I don't buy the posted results. Perhaps they should take that garage queen 5K mi. 95' out to the local dragstrip and post some trap times to back up all the horsepower it supposedly has? P.S.-Back in the last century, when I bought my 160 deg. stat from A.O. Engineering, it was $35. And I thought that was a ripoff. Has anyone asked Randy why these are so expensive?