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Hp to kill Cobra?

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Old 12-10-08, 06:06 PM
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CA Hp to kill Cobra?

How much horsepower to kill a svt cobra 2002 supercharged? He has 450 hp to the wheels.
Old 12-10-08, 06:10 PM
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well if he has 450whp... you probably need to have a litle more then that... but it all depends on if you guys do a roll or digg...

guy will probably spin his nutts off anyways.
Old 12-10-08, 06:11 PM
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there is obviously not an easy answer to that question, because going faster doesn't rely solely on hp. Start here and figure it out.

http://www.rx7.com/accel_calculator.html
Old 12-10-08, 06:12 PM
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To kill in what sort of race?

You'll need much more than a basic turbo swap (as is reflected in your sig) to kill that; rough guess, but I'd say in a drag race, if you're both at stock weight, you'll probably need to push a bare minimum of 350-370hp with great traction.
Old 12-10-08, 06:19 PM
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oh my bad. He is at 500whp just got that confirmed. I have a 450hp rx7. Diff has been rebuilt. new koni shocks and mazdatrix springs. And i am getting drag radials tires. Just not sure wat brand. Anyone know of a good cheap brand than mickey Thompson?
Old 12-10-08, 06:21 PM
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^+1 to all the above. Depending on the race type and his setup YOu will definitely need more than a regular turbo swap. If it was a 03 With the Terminator Block and Kenne Bell all i would say is BEWARE!!!
Old 12-10-08, 06:25 PM
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Originally Posted by knivesm
oh my bad. He is at 500whp just got that confirmed. I have a 450hp rx7. Diff has been rebuilt. new koni shocks and mazdatrix springs. And i am getting drag radials tires. Just not sure wat brand. Anyone know of a good cheap brand than mickey Thompson?
Goodyear, Bf Goodrich, mainly any good brand of tire has good drag radials. There is also no such thing to to my knowledge as a good cheap drag radial.


What kind of race?
Old 12-10-08, 06:28 PM
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drag racing from dead stop
Old 12-10-08, 06:32 PM
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Get the Mickey T's.
Old 12-10-08, 06:43 PM
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Yes Mickey Ts will be best of course. Other than that practice on your launch and things like that
Old 12-10-08, 07:02 PM
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are any of these numbers dyno proven?

Being a better drive can make a world of difference as well.
Old 12-10-08, 07:12 PM
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the cobra has been on a dyno. The rx7 was dyno at that . But the engine is getting rebuilt.
Old 12-10-08, 07:43 PM
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400whp should be enough, or at least close (depending on the type of race) due to the weight differences. Cobras are worse for traction than Rx-7's.
Old 12-10-08, 07:47 PM
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what's the weight difference ?
Old 12-10-08, 07:47 PM
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Yes they sure are but if he is running slicks or even some good drag radials and can hook well then you better be quick. Its not all about HP as it is a combination of HP and Torque in this case. He has massive TQ and will get him off the line if he can hook well. I dont know your TQ #s. Weight is also a factor.
Old 12-10-08, 07:49 PM
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all is true...450 to the wheels with a good suspension setup and your 1.3 will eat the pos stang up. my friends had BF Good. DRs and they were awesome on his 90 Supra turbo
Old 12-10-08, 07:56 PM
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if he has more torque.. him hands down
Old 12-10-08, 07:59 PM
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Your reply after this one makes you look stupid.

Originally Posted by arghx
Cobras are worse for traction than Rx-7's.
Old 12-10-08, 08:10 PM
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Originally Posted by jfpimp91elkland
Yes they sure are but if he is running slicks or even some good drag radials and can hook well then you better be quick. Its not all about HP as it is a combination of HP and Torque in this case. He has massive TQ and will get him off the line if he can hook well. I dont know your TQ #s. Weight is also a factor.
Assuming his 450hp was rwhp, he has about 337.5 wtq at 7000 rpm.

Last edited by TweakGames; 12-10-08 at 08:14 PM.
Old 12-10-08, 08:18 PM
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Cobras are going to be anywhere from 700-1000 lbs heavier than an Rx-7 most likely, depending on if any weight reduction was done to either vehicle.
Old 12-10-08, 08:19 PM
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Originally Posted by TweakGames
Assuming his 450hp was rwhp, he has about 337.5 wtq at 7000 rpm.
337? You sure about that figure?







Also, you could've easily found out the answer to this, if you just DID IT!
Old 12-11-08, 09:09 AM
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There were no 2002 Cobras. It is probably an 03 or 04. If you make close to 400 WHP it will be a very close race. That is if you both can drive and get traction. He still may be faster above 120. Cobras pull pretty well on the top end.
Old 12-11-08, 09:10 AM
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Originally Posted by TweakGames
Assuming his 450hp was rwhp, he has about 337.5 wtq at 7000 rpm.
Add about 100 RWTQ to that and you will be close.
Old 12-11-08, 09:34 AM
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^^ he's talking about the rx7
Old 12-11-08, 09:48 AM
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Originally Posted by ITSWILL
^^ he's talking about the rx7
I think you are right. The OP said that the Mustang had 450.. and then revised to 400. I thought he was refering to that.

If anyone wants to see what would happen for real.. I have a Cobra.


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