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Old 11-02-2010, 09:09 PM   #1
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Default quarter miles

What kind of 1/4mile times can you expect with 6 psi? I know there's a ton of variables to work out but...

I just got done working on a 99 mustang cobra with a 5 speed and I swear my 99 miata with 6psi felt quicker. Am I imagining things or what? I couldn't get over how slow that thing felt, and I'm pretty sure they're mid 13 second cars.

Anyway, with a perfect launch and perfect shifting am I wrong to think that a low boost miata will run 13's?
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Old 11-02-2010, 09:25 PM   #2
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they are slow..

go drive an 03-04
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Old 11-02-2010, 09:31 PM   #3
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they are slow..

go drive an 03-04
03-04's are still weak out of the box, but have loads of potential!
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Old 11-02-2010, 09:35 PM   #4
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Most of the craptastic online calculators will tell you that you need about 190-200 horsepower to crack into the 13's. I say they are craptastic because they only account for weight and horsepower.

For example my car can trap 108mph in the 1/4 and I run a 13.3. The ford falcon I ran against trapped a 102 but ran a 12.7. The online calculator says I should run a 12.5.
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Old 11-02-2010, 09:37 PM   #5
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they're not too bad. record for bone stock is high 12's I think. and yes, with just a few bolt ons they gain ridiculous power and get insane with major work.


about 13's on 6psi. there is a difference between 6psi 35r and 6psi t2554. OP you'll have to be WAYY more specific.
But based on the typical low boost setups I'd say it will be hard to hit 13's

our cars were never meant for the quarter mile, so they suck at it compared to other cars. I'd say no you won't hit 13's with 6psi
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Old 11-02-2010, 09:40 PM   #6
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15psi from my old FMII setup gave a 14.5 on the Gtech and it felt like a 1.8 60'
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Old 11-02-2010, 09:41 PM   #7
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Ok, stats-99 svt cobra- [email protected], 0-60 5.4 sec.
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Old 11-02-2010, 09:48 PM   #8
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Quote:
Originally Posted by Aricjm15 View Post
Most of the craptastic online calculators will tell you that you need about 190-200 horsepower to crack into the 13's. I say they are craptastic because they only account for weight and horsepower.

For example my car can trap 108mph in the 1/4 and I run a 13.3. The ford falcon I ran against trapped a 102 but ran a 12.7. The online calculator says I should run a 12.5.
You would if you had slicks......easily. Maybe faster.
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Old 11-02-2010, 09:54 PM   #9
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15psi from my old FMII setup gave a 14.5 on the Gtech and it felt like a 1.8 60'
Are you serious?
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Old 11-02-2010, 09:57 PM   #10
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if the only variable you base quarter mile times on is manifold pressure you need to sell your car and ride a bus
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Old 11-02-2010, 09:59 PM   #11
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vipers run the quarter mile in 11 seconds with 0psi. imagine that. ZEEEERO PEE ESS EYEEEE
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Old 11-02-2010, 09:59 PM   #12
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OP, I think you could do it if you had good tires. I broke into the 13's at 95 mph. It takes some practice.
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Old 11-02-2010, 10:00 PM   #13
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Are you serious?

It was weak....... but it also weighed 2550.

18psi- That is why I mentioned it being an FMII kit

I ran 12.3 with only headers and a lid in the WS6 back in 03-04
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Old 11-02-2010, 10:00 PM   #14
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my dad's dodge truck can't break into the 16's on 20psi. what is wrong?
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Old 11-02-2010, 10:02 PM   #15
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Quote:
Originally Posted by chpmnsws6 View Post
18psi- That is why I mentioned it being an FMII kit
I am poking fun at OP, not you.

I think the stupidest thing you can do is base how quick a car is based on the psi.

I guess all those 6psi vortec supercharged corvettes are super slow cause they only run 6psi
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Old 11-02-2010, 10:02 PM   #16
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I hate it when dicktard ricers pull up to me and the ONLY thing they wanna know is "AYO HOLMES, HOW MUCH PSI DAWG?"

cause apparently that's all that matters.
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Old 11-02-2010, 10:03 PM   #17
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Quote:
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my dad's dodge truck can't break into the 16's on 20psi. what is wrong?
Headlight fluid must be low. That or vee-tack is jammed. Either way, it's going to require a rebuild.
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Old 11-02-2010, 10:03 PM   #18
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Its a dodge. Ours wouldn't be able to run a 17 with 30psi........ But it'll haul 26k plus pounds (so far)
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Old 11-02-2010, 10:05 PM   #19
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I ate a ton of burritos and my ******* is at about 10psi guys.

Think I can run a 13?
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Old 11-02-2010, 10:08 PM   #20
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I think 6 psi with a gt2554 on a miata should yield around a 14.5 depending on launch. Maybe after slicks, a 14.2 if you're lucky.
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