rx7italy

who have kill one of this???

Scrapiron7

A stock 2006 Z06 has 442 rwhp w/3130lb curb weight. A lightened and modified FD at 2600lbs would need 367 rwhp to make the same power/weight ratio. Keep in mind the Z06 is stock at that point.

ProjectD

iTrader: (15)

Power to weight ratio aside I think an FD is gonna need quite a bit more power to keep up with a c6 Z. I haven't personally raced one but that is just my $.02

Scrapiron7

... That was kind of the point of my post. It was relavent.

ismaelruiz

I did. I dynoed my fc a long time ago and made around 450whp. Since then I improved a few things and was probably making near 500whp at 25psi.

rx7italy

it is too fast!

TwilightRotary

iTrader: (3)

holy snap!

turbodrx7

iTrader: (43)

about 500 whp. Stock the new z06's trap high 120's(almost 130) and run low 11's.

-Austin

Yellow R1

An FD does not need near 500 rwhp to pull a C6 Z as another posted already listed (its power to weight = physics). I have ~ 400 rwhp & pulled one about 6 months ago (some kids on this forum said it was, "BS" at the time....comical to say the least).

-Matt

turbodrx7

iTrader: (43)

doubt it. was this from a dig? with a poor driver in the vette a 400 hp FD has a good shot against it. On the highway? There is no way you would pull one. I have seen stock ones run with single turbo supras trapping almost 130. I also have a 400 whp FD that is 2650 lbs and i only trap 121-122. That just isnt going to cut it on the highway agianst one.

-Austin

Yellow R1

Are you like, HEAVY? I don't know what to tell ya if you are getting pulled by ZO6s with 400 rwhp FD! ZO6's don't bend the laws of physics. I pulled the ZO6 I ran 3 times from 70 - 130mph by ~ 2 cars (with my wife in the car). Turbo cars gain power on a roll via cold air dropping the intake charge. He got pulled & didn't like it so he kept coming back for more. It was close, but he got pulled each time - same result.

You can "believe" what you want. I've run Modenas, Vipers, ZO6s, modded GT2s & a host of other high end cars (I live in Silicon Valley - fast cars out here are a dime a dozen). I've lost ONCE to a modded GT2 when I only had 342 rwhp & another 175lbs passenger with me from a dig (and he got the jump due to a road obstruction in my lane).

You better get your car dynoed - you are likely not putting out the power you think you are if you are getting pulled by a ZO6.

-Matt

spoolin spec v

Ive rode in a c6z, stock mind you, and a 400hp fd.

c6z would SLAUGHTER that car. You will need a little more than that.

turbodrx7

iTrader: (43)

Lol, man your car must be a crazy fast super mazda rx7 or something. Personally, i think you are talking out of your ***. My car has been dyno tuned, i know what power my car makes. Just to clearify you are talking about c6 zo6's right, cuz the c5 z06's are a different story.

-Austin

Yellow R1

Talking out my azz? Kid, clue in. You are 20. I was drag racing muscle cars & RX-7s when you were shitting in your diapers.

Yes, a C6 ZO6. Come back & get a Math & Physics education (ie graduate from college) & get some driving experience before you start trying to tell someone else TWICE your age what you "think".

We have another 20 yr old Fangio that can't do math, has never run anything faster than a hamster, yet manages to preach what could & could not happen. Hell, he must have been at the side of interstate that night when I ran the Z with a speed gun & camera. Heck, why run a car, we can all just consult with our East Coast 20 yr old FD expert on what he "thinks" will happen!

Here, read up Genius. Here is Brook's 362 rhhp RX-7 on a hot/humid Florida day running an 11.4 trapping 120 mph (24 less rwhp than yours on a hot/humid Florida day. Buddy,, you can't drive or your car is not putting out 386 rhhp). ...Now, what will happen Boys & Girls if we add another 43 rwhp & drop the temp to ~ 40 degrees F on a roll? A car that is a hair faster than a stock C6 ZO6? Bingo! We have a winner!

http://www.dragtimes.com/Mazda-RX-7-Timeslip-19.html

Mr rx-7 tt

iTrader: (5)

Actually the modified GT2 didn't beat you, he got the jump because his lane was clear and yours wasn't. The cars were dead nuts even all the way to 120 when you both quit.

BTW: Guys here have run in the 10's and trapped 125 plus on the stock twins making ~ 400 rwhp.

500 whp to run with a Z06..??? Funny sh#@!

Yellow R1

Ya well, it was a close run with the modded GT2....coulda gone either way - it was tight (fun run - too bad it was someone else's Porsche & the Tech was just test driving it - I would have had that guy's head on a stick if someone was out flogging my $180k GT2).

This forum is just full of little Gromets that "think" they are rotary experts, when in fact, they can't even CROSS MULTIPLY. Now THAT is funny shiate.

See yaaaaaa,
-Matt

adam c

iTrader: (2)

I think some of these young morons would try to argue physics with Einstein. Its pretty simple when racing from a rolling start. If drivers are close in talent, highest HP/weight ratio will win every time. Only an idiot would argue with that. Who's next????

smg944

iTrader: (34)

hey.. im young and have a brain. yellow r1 is right you cannot beat phyics, thats the bottom line. i ran a 06 z06 when my fd had 340whp from 60-120 i was about a car or so behind. now i have 425whp and cant find one anywhere. fwiw i can run 60-120 in 6.9-7.0 sec. compared to the zo6 60-120 of 7.4

ProjectD

iTrader: (15)

Like I said I've never raced one so i don't know personally. But it is plain stupid to think power to weight will decide the outcome of every race roll or not. There are other very important factors like gearing and power under the curve. peak power doesn't mean crap if it only last for 1k rpm.

ITS N STI

Your argument is futile here, believe me.

slo

iTrader: (1)

Thats really scientific.

The but dyno is not accurate, my zx11 is capable of a 10.5 in the mid 130's stock, with 35K miles it ran 11.2 at 126. A friend has a newish gsxr 750 with bolt ons, a power commander a slick, and swingarm extenders, he ran 10.2 at 140+. Guess which one feels faster, that would be the zx11 with about 40% more displacment than the 750, much more low end torque, and 100 pounds (20%) heavier.

ITS N STI

bikes have a lot more to do with the rider

slo

iTrader: (1)

What your trying to say is bikes are harder to launch and this is true, but launch has little to do with the MPH which is all wind and road resistance and power/weight.

The point was that the the but dyno is allmost useless. Just because one car (or bike) feels faster than another doesn't mean it is.

turbodrx7

iTrader: (43)

Man, someone is getting a little worked up here. Chill out now buddy, i wouldnt want you to have a heart attack or something.

Age should not have been brought into this. It is really irrelevant how old you are or I am. I mean as you can tell from your post, you are very immature and ignorant at what age, 45?

I never told you what would happen or claimed to be some FD genius. All i did was gave my opinion of the outcome based on what i have seen these cars do personally with my own two eyes. But who knows, maybe my eyes are "too young" to see right still, have to wait till they break in.

Because you get offended that there is another veiw on this question than your own is not my problem. And just because you add another 43 whp and drop the temp, i dont think it is going to bring the cars trap speed up 8-10 mph.

But what would i know, im just a kid.

-Austin

Rotary Noob

Okay, I was going to stay the hell out of this one...but Yellow R1, you sound like you should be shitting in those diapers right now, or wait... Did you get some of the grown up ones, so you could act your age?

Dont bring age into this, that was a childish low blow, that was completely un called for. Ive seen 40 year olds that dont know a tie rod from a torsion bar. Then, on the flip side, ive seen 18 year olds cut coils on their suspension so it "rides better".

Stupid knows no age friend, 18-80, no limits.

Okay, now yes. The stock C6 Z06 has around 450 RWHP, and 3130 some odd curb weight. So a 2600lb RX7 is only going to need around 400hp to keep up, if you omit torque and gearing. The RX7 had 4.1 (correct me if im wrong, but at least the FC does...) in the rear end. It also has some pretty high ratios in the tranny. Putting those together, you have some really good accel, but how about top end?

The vette on the other hand, has somewhere near 3.42 in the rear, with probably about 100ft lbs more torque than an FD. Its ratios are lower, to use this torque, and itll still rip the tires loose from the pavement. Thats with 325/30 19's. I am going to take a WAG, and say you probably have at the most 275's on your FD. If that. Riddle me this bat man, how do you manage to keep traction with less tire on the ground than that, with less weight? Dont try to say weight balance, because the Z06 is about 52/48, and your 7 is 50.1/49.9 or around there.

Im not saying that you cant possibly do what youre saying you have done/can do. But you are coming off like a jack ***, and you should be a little more...whats the word...wise, in your ways.

As for the 3 pulls you said you did on that Z06, Im not going to bag on you, or try to rip you for it. I wasnt there. Im a little skeptical, but then could have been driver error, If the driver was good he was on the bottom of the powerband in 2nd when you started the roll. If the driver was bad, he was below the power band in 3rd, and would have had to pull through.

You seem to have a hatred for some of these cars, like the Z06, though im not sure why. Yeah, you buy it, its good out of the box, go play and have fun. Costs more money (maybe) than what youve put into your RX7, and is now slower than said RX7. However, will your RX7 go 198 mph, or handle 1.2g's on a skid pad?

Stock for stock its the best thing you can get, hands down.

Not to mention that putting more power to it is fairly easy, its still a pushrod engine. Forged internals with H beam rods, larger ported intake and heads, under drive pulleys, higher pressure fuel injectors, fidanza 30lb flywheel, stage 4 clutch, Walbro fuel pump, and a full borla exhaust system with X pipe, with a final touch of a PCM reprogammer (and about 10k later...) youve got about 600-650hp, on a redline of 7k, in a pushrod V8. Nothing to laugh at. Not to mention that itll sound freakin awesome.

Oh, and in case you wanted to try and fight the age battle again, I'm 19.