Boost required for 13 sec Quater Mile times.
 

What kind of power to weight ratios are your cars runing to be in the 13s.

Basiclly need to know weight of the car.
CC of car
Boost being run.
To be in the 13s on street tyres.

Ooops wrong forum sorry?

Re: Boost required for 13 sec Quater Mile times.
 

On street tires in a FWD car, it's going to vary a lot based on how well you drive, the style of clutch you have, etc.

Also, some peoples' definition of "street tires" is much different than others. Some people consider DOT approved "cheater slicks" street tires, along with purpose-made drag radials. Others are much stricter.

In a FWD car on genuine street tires, I'd probably want in and around 250hp at the flywheel in a 2400 pound car to ensure I was in the 13's.

With slicks, of course, and a good launch, you can get into the 13's much easier.

Re: Boost required for 13 sec Quater Mile times.
 

Many guys on the site pullin 195 or so at the wheels can hit 13's.

My mph's are at the 13's but my traction is not!

Re: Boost required for 13 sec Quater Mile times.
 

2600lb car

d16z6, 14b turbo, 10psi

13.99@103mph 2.2 60'

Re: Boost required for 13 sec Quater Mile times.
 

1800lbs with me in it, 150 flywheel hp to break 13's according to this site http://robrobinette.com/et.htm

do yall think 7 psi could make 150 fly hp on a d16a1?

not sure how accurate, but ive put in quite a few numbers for stock cars and came within .5 seconds.




Sean

Re: Boost required for 13 sec Quater Mile times.
 

By Street I mean street thats a 175/80/13 Tyre
Obviouslly tractions gona be a problem as even with 4 PSI boost and 2500 RPM launches she is wheel spining.
Time to beat is arround 16-17 seconds for a national record I think. Still checking.
Competition other Swifts runing upto 100 shots of NOS.

Weight of car and rider 2200lbs
1.3 Ltr Engine Ported/polished and head shaved
IHI RFB5 Turbo Hybrid capable of arround 16 psi boost at 7000 RPM. Presntlly runing 6 PSI.

Sample of launch at arround 2800 RPM. If we launch at 4000, 5000 RPM the car never gets traction till we change to second.
http://www.rddreams.com/videos/6psivid1.wmv

Re: Boost required for 13 sec Quater Mile times.
 

the d16a1 starts with 130hp or something close to that so i would certainly hope that 7 psi could get you 20 hp

Re: Boost required for 13 sec Quater Mile times.
 

im hoping to hit 13.50 w/ my hatch on street tires w/stock b16a on 6psi garrett gt-17

we'll see what happens this summer

Re: Boost required for 13 sec Quater Mile times.
 

Moral of the story, launch on 2nd! ;) Let me know what happens.

Re: Boost required for 13 sec Quater Mile times.
 

Ok will do. But 2nds gearing is too tall. She just may bog. But worth a shot. With 16 psi.

Or I could just steal some rich kids slicks ;D