mazda/feed

Help !!! Can I Beat A Zo6 With J-spec Turbos
FOR THOSE THAT KNOW I WANTED TO KNOW IF I COULD BEAT A ZO6 WITH THE J-SPEC TURBOS. I HAVE A FRIEND THAT HAS ONE. MY TURBOS ARE LEAKING AND SO ITS TIME FOR ME TO REPLACE THEM. I WAS THINKING ABOUT GOING SINGLE BUT I READ ON THE FORUM THAT THE J-SPEC ARE MUCH BETTER THAN THE 93-95 VERSION.
OH YEA I MUST MENTION THAT I HAVE OTHER MODS. AND WOULD 375HP KEEP UP. THANKS FOR THE INFO

serge

"Help !!! Can I Beat A Zo6 With J-spec Turbos "

No. to beat a ZO6 you will need at least 10-12 thousands $$$ in mods.

Serge

JoeD

Crashunit

Jspec turbos are better then the the current stock twins... however not greatly better, and they still dont eliminate the crappy rats nest like a single turbo.... I'd say for the money and to be sure your gonna put a Z06 in its place better go single.... running low 12's on jspec or stock twins is difficult.

Crashunit

Im pretty sure I can do that with half as much..... but whatever tickles your pickle.....

Rx-Revin

you probaly can beat him without the 99 turbos with the stock twins but what mods do u have

kwikrx7

To assure yourself of keeping up with a 02 Z06 you'll need all the bolt-ons - full exhaust, intake, IC, ecu, pulley, and about 14 lbs of boost to run low 12s. Add a streetport and you could pull him. Some of the 02's have seen 11.9 on street tires. Most run 12.4 though - still extremely fast and not something that 15 hp will fix with the 99 j-spec turbos. Upgraded twins or a single would pull him hard - but that's alot of dough.

Johnny

you need to putting down about 330rwhp and be a good driver...which pretty much means you need all the bolts on and run 13-14lbs of boost...jpsec turbo or not...

375rwhp is more then enough....but you wont want to running the twinturbos that hard anyways...if you wanna be sure...go single..

Mr rx-7 tt

iTrader: (5)

You need ~290 rwhp. Do the math. Z06~3200 lbs/405 hp @ the crank. 7.9 hp per lb (flywheel). RX-7 ~2700 lbs/ 341 hp @ the crank . 7.9 hp per lb (flywheel) 341 x .85 = 289.9 RWHP. With 375 rwhp you'll suck the paint off the Z06....... ask me how I know...

ronarndt

Mazda/feed-There is not much you can do to offset the Vette's torque advantage at low rpms. I ran my FD with me at the wheel vs my wife (yes, she can drive) in the Vette before putting in my new Pettit hi flow turbos (blueprinted, ported, polished, ceramic coated) and lost two car lengths from a standing start and never really caught up to 130 mph plus. After the new turbos, result was about the same- start two lengths behind, then try to catch up. FD is noticably faster, but so is the vette, since I think it is getting broke in now. Dyno with the stock twins was 334 rwhp at 14 psi, have not had it checked since the install of the Pettit unit. If you are going to run against someone's Z06, do it from a rolling start at about 15-20 mph so you can be in 1st gear with the rpms up. You may also want to pull one of his spark plug wires off while he is not looking.

Mr rx-7 tt

iTrader: (5)

Something is wrong if you can't walk a Z06 from any speed with 335 rwhp.. You are almost putting out the same hp and you are 650-700 lbs lighter......BTW: You will not make any more hp with the pettit turbos assuming your old twins worked fine. Ask Cameron..I've seen mutiple dynos with those turbos.

happyham

for everyone who responded to this freak, your not really answering the question. Of course, getting the jspec turbos, then modding the fawk out of the car will make it faster, but thats only assuming the z06 remains stock. so that takes away from the context of the original question, which should have been phrased: "Can a stock FD with just the turbo's switched to jspec ones beat a stock corvette z06 in a straight line race?" And the answer to that is obviously no. But tuned to 375hp, being only 30 less hp yet weighing about 300 pounds less than the z06, fd would definitely be faster than the z06 then.

Fd3BOOST

iTrader: (7)

You've got the funniest damn signature I've seen yet. You should have no problem killing a 'vette with 99' spec spinners.I do everytime I find them..

ronarndt

Mr Rx-7 tt- Standing start almost always favors the vette unless you are equipped with slicks and modded for drag racing. This topic has been discussed many times by people trying to improve the launch of the FD. About the difference between the stock turbos and the hi flo- I'll have to see what actually happens on the dyno. When I talked to Cameron, he claimed about a 15% increased flow rate and increase in hp accordingly. Of course, that was when he was trying to sell the turbo to me. As for being able to"walk" the Z06, you need to go drive one to make an accurate evaluation. Spotting two car lengths to a car equally as potent as the FD makes a tough hole to climb out of. Maybe with 16-17 psi boost I can catch up from a standing start, but my mods can't support that much boost (yet). PLus, I'm starting to think about mods for the vette- then what?

Axe

Beat a Z06 doing what?

Why is everyone always trying to beat everything else in a straight line? If you want to do that then go get a Chevy 502, bolt on a supercharger and replace the cam and stuff it into a Camaro or something.

This car is not a drag racer as set up. It does not have the low end torque even when its moded pretty significantly...and what's with this rolling start crap?

This car is a nimble autox car. Treat her with respect. She can kick major a$$, even against a fat-a$$ Z06.

ronarndt

With its wider tires, my Z06 can squash more frogs on the road per mile than my FD. With its hotter exhaust, my FD can peel the paint off tailgating cars faster than my Z06. With no sunroof, my Z06 is hotter sitting in a parking lot than my FD. etc, etc, etc.
axe is right- while some of the FDs have done well at the drags, it was not designed for straight line racing. On a road course I find the FD much more nimble and it at least *feels* a lot faster. Will have to do some timed laps back to back to get some objective numbers.

twinturboteddy

Putting HELP!!!! on the thread topic for this is a little inappropriate. Help!!!! usually means, i'm stranded, help me. Or something important, I suggest since you are a newbie and don't know much about the car and will post more questions, lable them appropriately or people will not bother to look at your threads.

417RX7

Don't under estimate the Z06 in an autoX the classes have changes this year just because of that car. Granted a stock RX7 is still in the same class as the Stock Z06, but it is a mean car in the twisties too. The only car made by chevy I would own.

Poppinrex7

because a 502 wont fit in a 3rd or fourth gen camaro unless you have custom headers made, crazy trans and rear, different fuel system and a 3rd or 4th gen cant handle the torque, i twisted an 86 iroc-z with the stock short block...not hard...people think it is so easy to put a crazy motor in a car, its not, figure, 1500 for the rear, 1000 for the trans, 350 for the fuel system and a crate 502 is like 6k....how is that cheap..? cheap is a supercharged 5.0 mustang...get the fuel pumps, intake, full exhaust, cam, heads, clutch, 3.73 gears, and charger...and some sticky tires...mustangs hold up better then camaros...alot better....besides with those mods in a mustang...preferably 87-91....forged pistons stock...and not a beat *** engine your running 11s and getting kicked off the track....

technonovice

2002 Z06 3120 lbs / 405 hp = 7.7 lbs/hp
93-95 FD3s 2870 lbs / 255 hp = 11.3 lbs/hp
93-95 FD3s 2870 lbs / 375 hp = 7.7lbs/hp

Johnny

try again..........

Silver93T

I walked one at the track last winter. He had a better launch, and I am still pretty new to drag racing, so he got me off the line, but by the 60' I was with him, and towards the end of the run I had about 2 cars on him. I ran a shitty 13.0 on that run vs his 13.4 or something like that. Vosko has the video of the run if you want to see it. Btw, last dyno was 358.7 rwhp at 15 psi. I have since added pullies, removed air pump, and added racing plugs.

Johnny

nothing personal...but it sounds like both of you didn't drive well that day...

02 Z06 will do mid 12's...and with the power you have....you should maybe be in the low 12's

ronarndt

Everyone (except the drag racers) figures the wt/hp ratio and forgets the final drive ratio. FD with stock rear = 4.1 Z06 with stock rear = 3.42. If you put a low enough rear end in the car it will out accelerate cars with much more hp, all other factors being equal. My GTUs has the 4.3 rear and pulls strong with the NA engine and a lot less hp. The original question in this thread was whether a FD with a certain amount of hp would out accelerate a Z06. The answer is sure- but hp is not the only factor. The overall power curve, gearing, final drive ratio, traction, etc all affect acceleration. I get to drive both of these cars on a regular basis and this is like comparing the performance of the top 1% of cars on the road today. At this level of competition the difference in performance is measured in tenths of a second and fractions of a car length. If I ever start to drive professionally it will be important. In the mean time it's like the old debate between chevy and ford owners as to which is best.

Mr rx-7 tt

iTrader: (5)

(1) Standing start always favors the vette..? Get off the crack..It's all about launching. The Rx-7 is not at all hard to pull good hole shots with.The car is lighter, needs to make less hp/tq than the vette and isn't difficult to launch. People put the pettit's drag kit (250.00) to stop axle tramp which occours in some cars. (2) I have seen multiple dyno #'s on those turbos as well as others..THEY DO NOT MAKE MORE HP..You will see when you dyno. (3) I have 2 friends with Z06's and have driven both. I can WALK both of them, easy. (I dynoed over 370 rwhp). It takes 380 rwhp in an RX-7 to run 11.0-11.1's. It's funny to go over to the Z06 site and see these guys running 100 Nos shots and pulling low to mid 11's. Do the math a Z06 needs ~450 rwhp (3150 lb car) to run with a 375 rwhp Rx-7 (2650 lb car). Don't tell me a modded Rx-7 doesn't weigh 2650 either. (after dropping my stock exhaust to a ss I dropped 89 lbs alone.) I weighed my car on a scale 2570 dry (5 gallons of gas). (4) Mod your vette, have at it. Jim Halls tt Z06 set up hopefully will produce 620 @ the flywheel. That's not enough for a T-78 single set up and the cost is pretty steep. you can mod anything to go fast it's just money. It just is going to cost a whole lot more on the Z06.