Dyno'd the Torquer again
Thread Starter
TECH Enthusiast
Joined: Jun 2004
Posts: 576
Likes: 0
From: Fredericksburg, VA
Dyno'd the Torquer again Found out there was a dyno day down here in San Diego, $40, so I couldn't resist. Runs 4 and 5 were with the stock lid, and 6 and 7 with an MTI clear lid, for a little comparison. Pretty solid gain there. Still need to get the tune done, so that should net me a bit more. Found a good writeup on TB porting, so that's my next step. I should be able to take care of that before I get my mitts on HPTuner.
Thread Starter
TECH Enthusiast
Joined: Jun 2004
Posts: 576
Likes: 0
From: Fredericksburg, VA
Originally Posted by luv2spd
Nice numbers! That lid helped a lot. When you get the ported tb and tune you should be at 410 or so.
I'll probably tear into that TB tomorrow. Hope I don't ruin the damned thing! 
BTW- Did you get yours to the dyno yet?
TECH Enthusiast
Joined: Apr 2004
Posts: 749
Likes: 0
From: Chandler, Arizona
Hey, there is something wrong with your graph. Horsepower and Torque should always be the same (or cross) at 5252 rpm. Maybe the speed scale is off, but it ALWAYS crosses because the formula for HP is Hp = (Torque x rpm) / 5252
Originally Posted by glennhl
Hey, there is something wrong with your graph. Horsepower and Torque should always be the same (or cross) at 5252 rpm. Maybe the speed scale is off, but it ALWAYS crosses because the formula for HP is Hp = (Torque x rpm) / 5252
Thread Starter
TECH Enthusiast
Joined: Jun 2004
Posts: 576
Likes: 0
From: Fredericksburg, VA
Originally Posted by luv2spd
It appears that way but the hp and tq have different values on each side of the graph. They are scaled differently so if you take that into account and look at the actual values, they WOULD cross at 5252.
Trending Topics
re
Originally Posted by luv2spd
It appears that way but the hp and tq have different values on each side of the graph. They are scaled differently so if you take that into account and look at the actual values, they WOULD cross at 5252.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Adkoonerstrator
iTrader: (4)
Joined: Nov 2001
Posts: 21,420
Likes: 0
From: Deep in the seedy underworld of Koonerville
Originally Posted by 8KickassRS9
umm thats just a theoretical equation, the line doesnt have to meet at 5252. its an equation and just that.
That is a real equation relating horsepower and torque. It is not theoretical. Horsepower and torque will ALWAYS cross at 5252rpm.
Like mentioned above the hp and tq scales are different on that graph so it only appears they don't cross at 5252rpm.
Besides the fact that the graph wasn't scaled correctly, anyone notice how much the car leaned out with the MTI lid?? It appears to be a half a point down low and gaining to a full point up top. A tune will help your car and to get rid of that 6200 limiter it appears you still have.
umm thats just a theoretical equation, the line doesnt have to meet at 5252. its an equation and just that.
TECH Enthusiast
Joined: Apr 2004
Posts: 749
Likes: 0
From: Chandler, Arizona
Hey, thanks for pointing out the different scales, that makes it very confusing. And yes, everyone is correct, HP and Torque ALWAYS cross because as one person already said, all you measure on the dyno is torque and calculate HP from it using the formula. Sometimes, you don't even measure torque, all you do is measure the accelleration rate of the rollers and then calculate the torque from a formula using the rollers inertia: Torque = Inertia times accelleration rate. Then you use this torque value to calculate HP.
The different scales reminds me of a good friend here at work who used a semi-log graph to plot Hertz versus Cycles/Second. Of course, they are the same thing so you would expect a straight 45 degree line. However, on semi-log paper it comes out to a nice curve. Very funny!!!
The different scales reminds me of a good friend here at work who used a semi-log graph to plot Hertz versus Cycles/Second. Of course, they are the same thing so you would expect a straight 45 degree line. However, on semi-log paper it comes out to a nice curve. Very funny!!!
Jesus man,
There is no where to complain there! You almost made 400rwhp untuned, and w/o some basic bolt-ons....Very good numbers. you also picked up a solid 10ft lbs of tq.....just from a airlid. Sounds like you're gonna end up at aropund 410/390 once you are full bolt-on/tuned......
go figure, that's about what TSP has been claiming!!!
There is no where to complain there! You almost made 400rwhp untuned, and w/o some basic bolt-ons....Very good numbers. you also picked up a solid 10ft lbs of tq.....just from a airlid. Sounds like you're gonna end up at aropund 410/390 once you are full bolt-on/tuned......
go figure, that's about what TSP has been claiming!!!
