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  #16 (permalink)  
Old 05-30-2007, 11:31 PM
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Thanks for taking the time updating us, I know it's frustrating!! But the darkest hours are those just before dawn
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Old 06-02-2007, 04:13 PM
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Waiting patiently for Monday afternoon...

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Old 06-04-2007, 07:13 PM
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I just got back from the tuner, the car made 398.4hp and 312.6tq on a dynapack... pictures are pending. Boost was measured at 9.5psi; the tuner also measured intake temperatures, after several runs, at a high 170F - he believes there is significant additional power to be had with cooler intake temperatures.

The next step is to find a larger heat exchanger that can be mounted in front of the radiator, and to figure out a method for insulating the cone intake.

I have some pictures, pending, but right now I am going out to drive
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Old 06-04-2007, 07:45 PM
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awesome!
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Old 06-04-2007, 10:06 PM
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That's the "seductive" kind of power figure
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  #21 (permalink)  
Old 06-04-2007, 11:27 PM
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Friggin awesome bro. What kind of compression does the stock engine make? Ratio I mean... 10.5:1?
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Old 06-05-2007, 12:00 AM
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Quote:
Originally Posted by EEEEeeee36 View Post
Friggin awesome bro. What kind of compression does the stock engine make? Ratio I mean... 10.5:1?
The 3.0L nsx V6 runs 10.2:1 compression
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Old 06-05-2007, 12:11 AM
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Quote:
Originally Posted by Scorp965 View Post
The 3.0L nsx V6 runs 10.2:1 compression
So with that low of boost you haven't done any internals yet?`
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  #24 (permalink)  
Old 06-19-2007, 07:18 PM
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Here are pics from today... new heat exchanger, new plugs (colder/closer gap), new spring (should be around 8psi)... now its time to see the tuner again...





















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Old 06-19-2007, 07:20 PM
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Best of luck with this round!!
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Old 06-23-2007, 03:50 PM
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  #27 (permalink)  
Old 06-25-2007, 07:59 PM
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Here are some pictures from today; I went to a new tuner, Powertrain Dynamics in Huntington Beach, and had the car retuned...







Here is a graph early during the tune:



Apparently the car, after being tuned at Church Automotive, was running very lean at idle, which caused my stalling problem. The problem got worse from there - the car was running a huge amount of fuel, you can see the initial run in green on the above graph, there was so much fuel the new tuner didn't want to go past ~5500rpm on this tune, for fear of fouling the spark plugs, the AFR was well under 10:1 - this tuner could not believe the car had been tuned on a dyno. Intake air temperatures were another story... when the car was allowed to idle they would increase slowly to 170F, but when the car was given throttle they would drop to around 135F under full load in the span of perhaps 7-8 seconds. The 170F figure was a result of apparent manifold heat soak on the OEM temperature sensor.

With the fueling put back in order, and some increased timing, Powertrain dynamics was able to create significant improvement - there was never a full throttle run completed with the Church Automotive tune, but the partial run, compared to the final tune, had a delta of over 30rwhp by 5500rpm - this is with 1.5psi less boost.

The final dynojet numbers, uncorrected, ended up at 382.5rwhp and 283.0rwtq at 8psi. Here is the final graph:

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  #28 (permalink)  
Old 06-26-2007, 06:41 AM
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Sorry you wasted your time earlier....
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  #29 (permalink)  
Old 07-16-2007, 08:51 PM
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whats the latest on your car?
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  #30 (permalink)  
Old 07-29-2007, 10:41 PM
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Quote:
Originally Posted by DVS318 View Post
whats the latest on your car?
The car is now running at 7.9 psi, and produces 383rwhp and 283rwtq... there have been several recent changes, but no pictures in a while... The car now has a straight pipe exhaust (no muffler), the brakes have been updated to the nsx-r brakes, a carbon diffuser has been installed, a catch can has been installed, an AEM IAT sensor has been installed, and something 'interesting' has been ordered, hopefully it will arrive before nisei showoff on the 18th.

Here are pics from the nsx drive last month:









and a clip of the straight pipe:

YouTube - turbo nsx custom exhaust

Here is the 'something interesting', I ordered a gtrom front end last week, with the carbon fiber gt04 headlights:

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