The engine in question is also a stroker making over 400ft lbs of torque to the wheels, which also becomes a large factor in MPH through the traps at a given hp level. Making that much torque/hp the car should be in the high 1teens through the traps.
I went 115mph with 370rwhp and 355rwtq in a 3650lb car. I wonder what 40+rwhp and 45+rwtq could've done....

As said... the evolution of dyno numbers to MPH is only going to become more of a joke. Within the next few years it'll take 500rwhp to achieve 118mph with a full weight, 4th gen LT1 f-body.

 

I went 118.3 and 15rwhp should be enough to get real close to 120mph. it doesnt take 10rwhp to gain .1 mph in the 1/4. It gets old with everyone making up bs excuses on why their cars run slow and now its "normal" to be trapping <115mph with a heads/cam car. And to the guy who started this thread, put some tires on it and try to work out the bugs, it takes work to get these cars running right.

 

Your analysis of the numbers is off by a factor of ten.

We're talking about adding 15hp, and having that get you 1.5mph, which is about the best you could possibly hope for. The term "low 20's" implied the possibility of as much as 123mph, and I stand by my claim that there's almost no chance of a 420rwhp full-weight F-body trapping that high.

 

You can stand by it, lean on it, crawl under it, stomp on it but you're wrong. It's just too bad there haven't been any f-bodys of late that can do this, which is why people come up with that inaccurate impression.

 

I would also like to refer to the post with the racing Video, I know I need the Driver Mod unforntunalty this wil be a slow proscess as she is about to get parked for another 7 months ... if any of you ever stop by here while im around I would be more then happy to learn some of your shifting teq.

As for the Elevation its 50 feet...track info

 

But your going to be the one that pulls this off? Good luck, and keep us posted on your progress.

 

Another full weight car.. a hair under 119 MPH trap, shakedown passes to boot.. maybe 400 rwhp through my Ford 9" and 4000 stall? plenty of room to make it go faster at full weight too. And as stated by someone else earlier, YOU are wrong, it's not that difficult to trap high 11x to low 120's in a full weight car.

Agreed on this dyno thing w/ LT1's lately.. it's just becoming a bad joke.

Lots of cars running terrible numbers at the track.

 

You guys can yammer all you want. I'm waiting for timeslips and dyno graphs. 3500lbs raceweight (or more), 420rwhp (or less), and 121mph (or faster).

Note that I never said it was impossible or that it hasn't been done. It takes an extremely good driver, great traction, perfect conditions, and a perfectly-tuned car. I think anyone that has spent any time at the strip knows that it's pretty rare that all four of those things come together.

 

For all the guys that are bickering about the HP VS. MPH, My local site has a list of Dyno numbers and personal best track times, and my HP VS MPH is within par for what the rest of the guy that race at my track are getting. My E.T., Thats way off, and that will improve with time. There are to many variables that are in the open to say how far off my car is, I dont even have a clue as to how much my car weighs. It is running on the lowering springs still, and I havent put in my rear QA1's ot bought the LCA relocation brackets. I havent had the time

Thanks for all the constructive critisim, it is motivateing me to learn to drive my 6 speed better

 

3550 raceweight (w/ driver), standard ~400rwhp-ish heads/cam/355 motor.... 119 traps...

You started with saying even high teens were going to be "difficult"... I'm a hair off of 120...

These were in "non perfect conditions"... a mail order tune car w/ a stock 48mm throttle body...

I'm a good driver with decent traction.. so I guess 2 out of your 4 conditions are there

 

You guys must have one of the highest reading dyno's in the country then. Back when I had 322rwhp I was trapping 111, 352rwhp trapping 115, 405rwhp trapping 118.

 

No dyno graph, no care. You're estimating the power level; that throws your example out the window.

 

I'm not magically making more dyno power than the average 400rwhp car here... it's just a plain jane LE heads/cam motor on a simple 355. Nothing special.

I can guarantee you I'm not sitting here making anywhere above 410-420 rwhp.

 

416 RWHP Trapping 110MPH is a frigging JOKE. I've seen bolt on cars go 107-108, there is something SERIOUSLY wrong with your car. And it is VERY possible to go low 120 traps with heads/cam, **** Javier is doing 119 through a stalled auto. Your telling me he couldnt gain 1 MPH if he had a 6 speed in there?

Get real.

 

Although I have nothing to prove to you I'll throw my hat in...3600lb race weight, 375 rwhp on a Mustang dyno my best ET is in my sig, best mph is 119.90 in less than optimal conditions...Dyno #s are just numbers...I'm on my laptop with no scanner to prove my low numbers, but there are plenty who have seen it on the dyno...Its all in the combo and the biggest cam doesn't always win...

--Alan