I live in Boulder, Colorado... altitude 5,400 feet.
I installed the CT whipple through a group buy here on Prime maybe three years ago, added high boost, then AEM/FIC... and must add as background that my NSX is a daily driver that does a lot of track time on some of the best-known tracks in the country, but only club events.
Current dyno results below.
Max boost something around 7lbs, max torque around 255, max HP around 325.
I went to NSXPO in Portland, and Shad dynoed my car. Exact same setup, but had to shut it down at 6K rpm because my 370 injectors could not compensate for sea level air... much too lean, but achieved 10lbs of boost.... all we could do*was try to increase base fuel pressure, given the time available.
Here is that dyno in Portland at sea level A/F with torque; HP was 331, again, shutting it down at 6K
So... what can I do to achieve 10lbs of boost at an altitude that robs perhaps 2-3 lbs of boost versus sea level?
This is being installed this weekend:
...courtesy of Ken Sampson. It's a 2.3L whipple.
And... so is this, courtesy of Shad...
It's a custom intake made by Comptech specifically for a 2.3L whipple sometime in the mid-90s. I am proud to have it!
AND 550 INJECTORS.
(sorry, don't have pix of the 550 injectors.)
I have had countless conversations with Ken, Shad and titaniumdave about this setup... really, some very intense conversations. One of the first things Shad said was: "Why are you doing this?" My answer, which he accepted, was that I am spinning the l.6L whipple as fast as it can go, with fuel and timing management, but the best it can output at this altitude is less than 330hp. I have run out of options (and.. with a 2.3L whipple, I am suddenly opened up to many future modifications).
Ken had this 2.3L on a 3.2L with low compression pistons
Dave runs a different type of 2.3L with low compression pistons on a 3.0 liter engine..
I am going to run this with a stock 3.0 engine.
Science of Speed has come up with a new SC package that uses a 2.1L SC 8.5-9 PSI to achieve 380 wheel horsepower (also stock engine, but with*many options beyond that as well)
http://www.nsxprime.com/forums/showthread.php?t=116341
So... what's your best guess what my horsepower will be? I've given several hints.
I will not know myself until some time next week.
--bruce
I installed the CT whipple through a group buy here on Prime maybe three years ago, added high boost, then AEM/FIC... and must add as background that my NSX is a daily driver that does a lot of track time on some of the best-known tracks in the country, but only club events.
Current dyno results below.
Max boost something around 7lbs, max torque around 255, max HP around 325.
I went to NSXPO in Portland, and Shad dynoed my car. Exact same setup, but had to shut it down at 6K rpm because my 370 injectors could not compensate for sea level air... much too lean, but achieved 10lbs of boost.... all we could do*was try to increase base fuel pressure, given the time available.
Here is that dyno in Portland at sea level A/F with torque; HP was 331, again, shutting it down at 6K
So... what can I do to achieve 10lbs of boost at an altitude that robs perhaps 2-3 lbs of boost versus sea level?
This is being installed this weekend:
...courtesy of Ken Sampson. It's a 2.3L whipple.
And... so is this, courtesy of Shad...
It's a custom intake made by Comptech specifically for a 2.3L whipple sometime in the mid-90s. I am proud to have it!
AND 550 INJECTORS.
(sorry, don't have pix of the 550 injectors.)
I have had countless conversations with Ken, Shad and titaniumdave about this setup... really, some very intense conversations. One of the first things Shad said was: "Why are you doing this?" My answer, which he accepted, was that I am spinning the l.6L whipple as fast as it can go, with fuel and timing management, but the best it can output at this altitude is less than 330hp. I have run out of options (and.. with a 2.3L whipple, I am suddenly opened up to many future modifications).
Ken had this 2.3L on a 3.2L with low compression pistons
Dave runs a different type of 2.3L with low compression pistons on a 3.0 liter engine..
I am going to run this with a stock 3.0 engine.
Science of Speed has come up with a new SC package that uses a 2.1L SC 8.5-9 PSI to achieve 380 wheel horsepower (also stock engine, but with*many options beyond that as well)
http://www.nsxprime.com/forums/showthread.php?t=116341
So... what's your best guess what my horsepower will be? I've given several hints.
I will not know myself until some time next week.
--bruce
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