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0-60 in 5.0 or less?

Joined
4 June 2003
Messages
32
Location
NY
Could a '91 w/ Comptech headers, exhaust, airbox, short gears and highlift cams run 0-60 in 5.0seconds or less? How fast do you think such a car could run the 1/4 mile?

Also, anyone know what kind of performance upgrade the cams result in? Does it just lower the VTEC range? And why doesn't comptech sell it anymore on their website?

Lastly, what kind of horsepower (to the crank) do you think this setup will be producing?

Thanks.
 
With that set up, it would be too easy. Take a 91, lighten it up, then add an intake/exhaust and you probably will get there, too. With your set up, you are probably close to 300 something hp. It will run somewhere in the 12s quarter mile-wise.

Don't know much about the cam, but some people go with performance chips.
 
a 91 with I/H/E should produce between 260-270 RWHP. With a 5 spd you should be able to easily hit 60 mph in less than 5 secs. I don't know about 12's but I'm confident that you could do a 1/4 mile in the low 13's
 
NSXLuvr said:
a 91 with I/H/E should produce between 260-270 RWHP. With a 5 spd you should be able to easily hit 60 mph in less than 5 secs. I don't know about 12's but I'm confident that you could do a 1/4 mile in the low 13's

What's going to push the car into the 12 along with all that stuff will be the short gear. No more flat spot, it will get into the 12.
 
I would say 0-60 in 5 is easily obtained. Maybe high 4's. I don't think it would get 12's -- my friend with a similar setup ran 13.1. So maybe it is possible.
 
NetViper said:
I would say 0-60 in 5 is easily obtained. Maybe high 4's. I don't think it would get 12's -- my friend with a similar setup ran 13.1. So maybe it is possible.

Also take into account of whether or not one has a strong variant of the NSX. Remember about the talk that some NSXes are stronger than others in stock form.
 
NSXLuvr said:
a 91 with I/H/E should produce between 260-270 RWHP. With a 5 spd you should be able to easily hit 60 mph in less than 5 secs. I don't know about 12's but I'm confident that you could do a 1/4 mile in the low 13's

I was under the impression that a stock '91-'94 NSX should run in the mid 13's.:confused:

I stand corrected. Having checked the Faq, the '93 NSX was tested at the quarter mile with a time of 13.9 (ouch) and a 0-50 of 5.6 seconds.
 
NSXLuvr said:
a 91 with I/H/E should produce between 260-270 RWHP.
I don't think so. The stock '91 usually dynos around 233 hp or so, and I/H/E generally adds 15-20 hp. However...

NSXLuvr said:
With a 5 spd you should be able to easily hit 60 mph in less than 5 secs.
A bone stock '91 generally does 0-60 around 5.3 seconds. According to Bob Butler, adding 15 hp will reduce that by 0.31 seconds, and adding short gears will reduce that by 0.22 seconds. So doing either one won't get you below 5 seconds, but doing both should do so.

NSXLuvr said:
I don't know about 12's but I'm confident that you could do a 1/4 mile in the low 13's
That depends on what you consider "low 13's". The stock '91 generally tested in the 1/4 mile around 13.8 or so. Short gears reduce 1/4 mile times by 0.11 second, and 15 hp by 0.32 second. So doing both will put you somewhere around 13.4.
 
nsxtasy or Ken --> question for you..


in your statement with short gears..

0 - 60 was 0.22s faster over stock
1/4 was 0.11s faster over stock

so if 2 identical cars with the same setup with the only difference in one have short gears and opposed to the other with stock gears..

the one with short gears should pull away in the beginning only tp the have other gain on it through the 1/4 mile..

i believe you in your statement about the time difference cause you are very seldom wrong on your facts..

I just wanted to know why the stock gears gain on it a bit..

is it because of a possible extra shift needed for the distance of a 1/4 mile...
 
Here is what my 92 NSX with Comptech headers, Comptech exhaust, Junn lightweight flywheel, short gears and Cantrell AIS with Unifilter ran in the 1/4 mile.
I am about 200 lbs and without my spare tire and tool tray, running on 17x8 and 18x10 Volk AV3 wheels which are heavier than stock, my best run was 13.258 @ 106.335 mph. My 0-60' time was 2.067.
Previously before my headers and Cantrell AIS, my best run was 13.609 @ 103.486 mph with a 0-60' of 2.125 on stock 15/16 wheels.
My car dynoed before the headers and AIS at 257.2 horsepower to the rear wheels and torque of 195.5. Haven't been back to dyno it with the headers. My guess it that it probably gave me about another 12-15 horsepower to the rear wheels given my improvements in the 1/4 mile.
 
So high-lift cams should potentially give a car even more power / faster times than that?

Anyone know what comptech cams do and how much extra power they produce?
 
NCC-1701D said:
0 - 60 was 0.22s faster over stock
1/4 was 0.11s faster over stock

so if 2 identical cars with the same setup with the only difference in one have short gears and opposed to the other with stock gears..

the one with short gears should pull away in the beginning only tp the have other gain on it through the 1/4 mile..

i believe you in your statement about the time difference cause you are very seldom wrong on your facts..

I just wanted to know why the stock gears gain on it a bit..

is it because of a possible extra shift needed for the distance of a 1/4 mile...
Short gears have most of their improvement over the stock gears in the 45-73 mph interval, when both gearing setups are in second gear, and the stock gears are overall faster at speeds of 73-144 mph. When you look at 0-150 times, which includes the same number of shifts for either setup, the stock gears are 3.3 seconds faster.

However, you are correct that there is an extra upshift to fourth gear in the 1/4 mile with the short gears, that is not needed with the stock gears. This accounts for 0.3 second of the difference in Bob's analysis. The short gears have an advantage of 0.47 second in 0-100 mph (before the upshift with either gear setup), but a disadvantage of 3.8 seconds in 100-150 mph acceleration.
 
NCC-1701D said:
in your statement with short gears..

0 - 60 was 0.22s faster over stock
1/4 was 0.11s faster over stock

so if 2 identical cars with the same setup with the only difference in one have short gears and opposed to the other with stock gears..

the one with short gears should pull away in the beginning only tp the have other gain on it through the 1/4 mile..
Ken explained the gearing change well, but the big mistake being made in the above question is comparing the amount of time saved in a 0-60 run (time-to-speed) and trying to apply it to a ¼ mile run (time-to-distance).

It is much harder to improve time-to-distance, than time-to-speed. That is why an NSX may be twice as fast as a Ford Focus (zero to sixty), but only 3 seconds faster in the ¼ mile.

Bob
 
Because the very act of acceleration requires the "consumption" of distance. So, even though the Ford Focus isn't as fast, while it is accelerating, it is chipping away at the distance between the start and finish line.

The main difference is that acceleration up to a speed will be achieved in different amount of distances by diffeent cars (shorter distance for faster cars), and acceleration to distance will be achieved at different speeds by different cars (higer speed for faster cars).
 
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