Speed inc. 427.
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From: Lombard .IL
Originally Posted by LTLHOMER
The ET calculator probably went by flywheel horsepower. Most of them do. For instance, 1000 fwhp in a 3400 lb car should go 160 or so. Let me find my moroso et/speed calc. real quick and enlighten you.
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From: Lombard .IL
Originally Posted by tuff
Hey andy wanna run that slug.I'm ready to rock the juice is flowing on my baby motor. You know my car is still in full trim. I want to beat you in comfort 
.I'm getting a full detail on my car for this victory.JUST JOKEING. call me if you need a hand sat or if you want to go to the track sun call me later.
.I'm getting a full detail on my car for this victory.JUST JOKEING. call me if you need a hand sat or if you want to go to the track sun call me later. LTLhomer. for petes sake can you post in ANY thread on this board without being a jagoff, causing trouble, or both?
leave the man alone, he's just posting his dyno numbers, which are good.
leave the man alone, he's just posting his dyno numbers, which are good.
Originally Posted by SilverGhost
LTLhomer. for petes sake can you post in ANY thread on this board without being a jagoff, causing trouble, or both?
leave the man alone, he's just posting his dyno numbers, which are good.
leave the man alone, he's just posting his dyno numbers, which are good.
BTW...do "good" dyno numbers usually equal less-than-mediocre performance at the track? Or is that just a trend here?
Also, I did the math. 3350 lbs w/ 500 rwhp should go 137mph so I thought 135 was more likely. 128 at 3350 lbs is about 550 FWHP btw.
518 is impressive. 128 is not. Just doesn't line up. You guys can keep pretending it does, though.
I'm sorry about being honest, it's my downfall. I'll stop playing Plato and just let you guys stay in the cave. Have a nice day.
I'm sorry about being honest, it's my downfall. I'll stop playing Plato and just let you guys stay in the cave. Have a nice day.
You are talking about others being in a cave?
I have a grand idea. Take your calculator and shove it sideways up your ***.
Some of us, unlike you, are not bench racers. We get out and race ALOT, including the owner of this car you are busting on. Therefore subject to reality, which means that dyno numbers don't always transfer to the track based on your wonderful little calculations you idiot.
Have you ever heard of things like weather conditions, shift points, headwinds, etc. Weather alone can make HUGE diff. Let's say Andy went that MPH he did in like 90 degree heat and 90 percent humidty, then what do you have to say? You always talk like you are some hardcore drag racer, yet your constant criticisms and flaming are always FULL of an obvious lack of basic knowledge of racing.
YOU stick to your stupid calculators, the rest of us will be racing, thanks.
BTW, my junk only made 413 RWHP with a 6 speed through a monster driveshaft and a moser 9" rearend, on the SAME dyno as Andy did his 518. Yet the car runs consistent 11.20's on junk sixty foots. There goes your ******* calculator, and there are plenty more cars on this board that can show you the same thing.
I have a grand idea. Take your calculator and shove it sideways up your ***.
Some of us, unlike you, are not bench racers. We get out and race ALOT, including the owner of this car you are busting on. Therefore subject to reality, which means that dyno numbers don't always transfer to the track based on your wonderful little calculations you idiot.
Have you ever heard of things like weather conditions, shift points, headwinds, etc. Weather alone can make HUGE diff. Let's say Andy went that MPH he did in like 90 degree heat and 90 percent humidty, then what do you have to say? You always talk like you are some hardcore drag racer, yet your constant criticisms and flaming are always FULL of an obvious lack of basic knowledge of racing.
YOU stick to your stupid calculators, the rest of us will be racing, thanks.
BTW, my junk only made 413 RWHP with a 6 speed through a monster driveshaft and a moser 9" rearend, on the SAME dyno as Andy did his 518. Yet the car runs consistent 11.20's on junk sixty foots. There goes your ******* calculator, and there are plenty more cars on this board that can show you the same thing.
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Verdad Gallardo Enjoy the cave man. Like I said, it's become blantantly obvious that there's no point in commenting on what's obvious to people who actually know a thing or two about REAL racing, not ls1tech fbody land racing which is a joke. You have anything further to say, pm me as I don't want to steal the thread any more than it's already been stolen.
nothing left to say to you.
your horseshit negative attitude towards everyone on this site is being discussed.
i'd wise up and start acting like a mature individual if i were you, all I will say.
your horseshit negative attitude towards everyone on this site is being discussed.
i'd wise up and start acting like a mature individual if i were you, all I will say.
Back on topic here. I think those numbers are really good. Speed, Inc's 427 stroker motor is on my wish list and I really like hearing about how they work in the real world and not just dyno and cyber land. Thanks for posting up some numbers. It just fuels the fire in the rest of us that aren't quite there yet. 
6600 rpm clutch dump of death Administrator
Joined: Dec 2001
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From: Texas
There is more to life that the Moroso dream Wheel. If you use that as the basis for being the difinitive rule of how stuff works you are going to miss it.
Case in point 10 yrs ago my 72 Nova wth a short rod 383. You put the MPH and the ET on the "dream wheel" and they would never match up. I know what the motor made HP wise, and the combo just didn't work on the wheel.
Now a much more current example. The H/C car I drive made 503/455 and only trapped 127-128 mph. Looking at the HP you'd expect to see 130 mph or maybe higher. We think we may have had some clutch issues. But also, we found the nose was a bit high (stock ride height), and catching some air which may have dropped trap speed, the cars going faster were lowered. I have seen several cars that are N/A in the 500 category trap around 127-128.
The thing about a nitrous car is look at the torque on a 500HP nitrous pull. Its around 600-650rwtq. You don't find that in a N/A car.
So, to get in here and flame a guy when all you have is a "dream wheel" is not really all that helpful
Case in point 10 yrs ago my 72 Nova wth a short rod 383. You put the MPH and the ET on the "dream wheel" and they would never match up. I know what the motor made HP wise, and the combo just didn't work on the wheel.
Now a much more current example. The H/C car I drive made 503/455 and only trapped 127-128 mph. Looking at the HP you'd expect to see 130 mph or maybe higher. We think we may have had some clutch issues. But also, we found the nose was a bit high (stock ride height), and catching some air which may have dropped trap speed, the cars going faster were lowered. I have seen several cars that are N/A in the 500 category trap around 127-128.
The thing about a nitrous car is look at the torque on a 500HP nitrous pull. Its around 600-650rwtq. You don't find that in a N/A car.
So, to get in here and flame a guy when all you have is a "dream wheel" is not really all that helpful
Well I'm going to try here guys...bear with me.
My thoughts on the 427...
518 rwhp is about 650hp. Speed calculators and what not are used by top engine builders (ie Shafiroff, Schmidt, etc) because they work. They're not perfect obviously, but they are close.
Go here: http://www.dsm.org/tools/calchp.htm
I put in his et and his mph and got 572fwhp based on ET and 548fwhp based on MPH. That is at the flywheel. Multiply that by 0.8 for an auto and you're talking about about 440-455 rwhp. I also checked this on my moroso power speed calcuator and it checks out. I also checked silverghost's car because he posted his mph, et, and I guessed his weight.
I guessed weight at 3400lbs.
11.2 @ 122
By et that is 478 fwhp
By mph that is 482 fwhp
RWHP that calculators to about 410 rwhp (15% loss for the m6). I'm willing to bet his car made within 10 rwhp of 410. His car is working well and making the power he claims, that 427 isn't. Something is definitly wrong there whether it's the chassis or the motor just isn't making that much jam.
I don't want to **** in someone's cornflakes, but if people don't want to hear the facts I have nothing more to say. I can come up with 100 other cars that follow those calculator's predictions almost to a T.
Sorry if I've pissed anyone off, but I'm just trying to give both sides.
My thoughts on the 427...
518 rwhp is about 650hp. Speed calculators and what not are used by top engine builders (ie Shafiroff, Schmidt, etc) because they work. They're not perfect obviously, but they are close.
Go here: http://www.dsm.org/tools/calchp.htm
I put in his et and his mph and got 572fwhp based on ET and 548fwhp based on MPH. That is at the flywheel. Multiply that by 0.8 for an auto and you're talking about about 440-455 rwhp. I also checked this on my moroso power speed calcuator and it checks out. I also checked silverghost's car because he posted his mph, et, and I guessed his weight.
I guessed weight at 3400lbs.
11.2 @ 122
By et that is 478 fwhp
By mph that is 482 fwhp
RWHP that calculators to about 410 rwhp (15% loss for the m6). I'm willing to bet his car made within 10 rwhp of 410. His car is working well and making the power he claims, that 427 isn't. Something is definitly wrong there whether it's the chassis or the motor just isn't making that much jam.
I don't want to **** in someone's cornflakes, but if people don't want to hear the facts I have nothing more to say. I can come up with 100 other cars that follow those calculator's predictions almost to a T.
Sorry if I've pissed anyone off, but I'm just trying to give both sides.
ltlhomer,
have you considered that lastls1's car is a nitrous setup and I'm assuming is geared and stalled for nitrous, so therefore his motor et & mph wouldn't match up with his rwhp because he is not maximized to run on horsepower?
have you considered that lastls1's car is a nitrous setup and I'm assuming is geared and stalled for nitrous, so therefore his motor et & mph wouldn't match up with his rwhp because he is not maximized to run on horsepower?
I dynod 525rwhp the other day, uncorrected it was about 500rwhp. Ran 104.3 in the 1/8 today (2600' DA), I'm guessing ~3350 with me in it (havent weighed it yet).
What do you think the car should run with a SAE corrected 525rwhp at 2600' according to your calculations? Try smokemup.com or http://www.speedworldmotorplex.com/calc.htm and see what comes up there.
Its all numbers anyhow and they can be manipulated either way to win an argument. You are more then welcome to make fun of my HP also if you want, because I dont care - I'm having fun
Same with the guy that owns the speed inc 427, if he is happy with how the car is running there are nicer ways to say you dont think the car is running what it should without having to rip on him..
What do you think the car should run with a SAE corrected 525rwhp at 2600' according to your calculations? Try smokemup.com or http://www.speedworldmotorplex.com/calc.htm and see what comes up there.
Its all numbers anyhow and they can be manipulated either way to win an argument. You are more then welcome to make fun of my HP also if you want, because I dont care - I'm having fun
Same with the guy that owns the speed inc 427, if he is happy with how the car is running there are nicer ways to say you dont think the car is running what it should without having to rip on him..