ScienceofSpeed Releases ScienceofSpeed Supercharger System for NSX

[ScienceofSpeed]

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<img border="0" src="http://www.scienceofspeed.com/products/engine_performance_products/NSX/ScienceofSpeed/supercharger/nonaftercooled_300.jpg" align="right">New for 2009, the ScienceofSpeed Supercharger System for NSX is designed for the customer looking for maximum supercharged performance. The system is based around a high output 2.1L twin screw supercharger compressor. Working in conjunction with CT Engineering, ScienceofSpeed has utilized CT's inlet and intake manifolds used in the standard CT Engineering Supercharger with custom brackets to integrate the larger compressor with a supporting high performance fuel and ignition system.

Our goal in producing this kit was to increase the NSX potential in acceleration to be in line with modern day performance cars while maintaining the NSX durability and driveability. Based on power/weight, the system on a factory engine is capable of mid 4 second 0-60 mph times and low to mid 12 second quarter mile times (comparable to Corvette C5 Z06). With a built engine, the potential is greatly increased.

Due to the compressor's increase in performance, ScienceofSpeed has upgraded the system's fuel and electronics to provide injector control and ignition control. The system also includes larger injectors and fuel regulator.

The system produces up to a 140 hp increase at a moderate 9 psi on a factory engine with performance headers and exhaust installed and can produce up to 200+ hp on a mildly built engine, such as our Stage 1 forced induction engine.

For more information:
http://www.scienceofspeed.com/products/engine_performance_products/NSX/ScienceofSpeed/supercharger/

* see special introductory pricing below *

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Cheers,
-- Chris

 

[Dhalsim]

Veyr nice. Too bad there is no Carb exemption for us guys in Cali..........

 

[The Kid]

Looks great, the only question I have is the dyno graph comparing the SOS setup vs the Compech one. What CTSC NSX only makes 290 hp?

 

[ScienceofSpeed]

Update: 2/4

We are now geared up with kits to ship within 1 week from date of order.

If you are interested, please send an e-mail or give us a call.

regards,
-- Chris

 

[ScienceofSpeed]

Looks great, the only question I have is the dyno graph comparing the SOS setup vs the Compech one. What CTSC NSX only makes 290 hp?

This is pretty standard on the Dynapack dyno we use. It does not produce the highest numbers of other dynos but is very consistent tool for comparison dyno testing.

Cheers,
-- Chris

 

[jdnsx]

Chris,

Great work here! Nice to see this compellation of parts coming together in a well balanced package with the size of the 1.6L and the performance of the 2.3L charger.

Is it possible to get certain parts separate for those of us who already have the old Comptech system in different stages of modification?

Joe

 

[Semnos_NSX]

Chris,

Is it possible to get certain parts separate for those of us who already have the old Comptech system in different stages of modification?

Joe

+1:smile:

 

[ScienceofSpeed]

How's it going Joe. Thanks for your note. Nice to hear from someone who was playing with pushing the supercharger setups a long time ago. We offer a complete drop-in package for customers with the Comptech / CT kits already. This package is available for customers with the screw top intake manifolds which began shipping around 2002.

http://www.scienceofspeed.com/produ...peed/supercharger/upgrades/existing_Comptech/

If you don't need the engine management parts (for customers like you you already have them) just drop us a line for a quote.

Cheers,
-- Chris

 

[drew]

I suspect there is no obvious differences between the physical appearance between the SOSSC and the CTSC.

http://arb.ca.gov/msprog/aftermkt/devices/eo/D-455-1.pdf

When I get my CTSC smogged, they look at the EO order and the CTSC install instructions...there isn't much else for them to determine what they are looking at. They grumble a bit, but as long as the EO is in the computer is all they really care about.

Drew

 

[Dhalsim]

I suspect there is no obvious differences between the physical appearance between the SOSSC and the CTSC.

http://arb.ca.gov/msprog/aftermkt/devices/eo/D-455-1.pdf

When I get my CTSC smogged, they look at the EO order and the CTSC install instructions...there isn't much else for them to determine what they are looking at. They grumble a bit, but as long as the EO is in the computer is all they really care about.

Drew

So what are you saying? Just bring the EO to the smog check and a few well placed Comptech badges and your good to go?

 

[drew]

I'm just letting you know how it works with smogging my CTSC and how they verify the EO. I've done it several times over the years at several different shops.

The CTSC that has the same appearance and function as the SOSSC. Which is not coincidence: as it shares the same intake, induction and drive mechanism. It looks like I now have a place to source spare parts for my CTSC...very cool!

Conceivably, it is possible that I can eventually change out every single part on my CTSC with SOS parts and still have a CTSC as far as CARB is concerned.

A few years back somebody sued Sam Adams beer because they didn't own any brewing facilities. SA successfully argued that it wasn't who actually made and bottled the beer (I think Bud does) , but it is who specified the contents counted as the brewer.

 

[omega2]

I'm just letting you know how it works with smogging my CTSC and how they verify the EO. I've done it several times over the years at several different shops.

The CTSC that has the same appearance and function as the SOSSC. Which is not coincidence: as it shares the same intake, induction and drive mechanism. It looks like I now have a place to source spare parts for my CTSC...very cool!

Conceivably, it is possible that I can eventually change out every single part on my CTSC with SOS parts and still have a CTSC as far as CARB is concerned.

A few years back somebody sued Sam Adams beer because they didn't own any brewing facilities. SA successfully argued that it wasn't who actually made and bottled the beer (I think Bud does) , but it is who specified the contents counted as the brewer.

I believe the EO specifically states "limited to 6 psi", so technically using this kit would not be legal in California. That being said, most smog techs may not review the EO closely or check the boost levels--some don't even speak English. Most may not even see enough NSX's to even recognize the supercharger is even installed. Sounds like a cool and sneaky upgrade for more power, but I would keep all my original equipment just in case.

 

[Dhalsim]

Most may not even see enough NSX's to even recognize the supercharger is even installed.

This is kind of what I was thinking based on previous smog checks I have had done.

 

[Viper Driver]

Wow, this is awesome. Perfect for us up at altitude, who won't get the same "oomph" out of a standard CTSC. One day, I'll be able to afford this.

 

[ChopsJazz]

Looks great Chris. Congrats on producing it. I wish I could afford it, and that it was CA carb legal...

 

[nsxotic911]

Chris, did you measure the "9 PSI" via a boost gauge or estimated via pulley size and at what altitude/temp? Was this with or without standard cats...

Also, what makes this kit safe at 9 PSI on a stock engine..?


Thanks,
-Paul

 

[ScienceofSpeed]

Chris, did you measure the "9 PSI" via a boost gauge or estimated via pulley size and at what altitude/temp? Was this with or without standard cats...

Also, what makes this kit safe at 9 PSI on a stock engine..?


Thanks,
-Paul

The manifold pressure is monitored and logged through a lab grade pressure sensor as a part of the dyno.

I'm not sure I understand your last question. PSI is not a good indication of what an engine is capable as it does not address what air mass/volume is being pushed through the engine. In other words, a small compressor at 9 PSI is much different than a large compressor at 9 PSI. Although others have pushed the factory engine much further, we feel comfortable tuning the factory engine to 380 wheel supercharged horsepower with a good headers and exhaust system as long as we have fuel and ignition control (which our system offers). Our system requires approximately 8.5-9 PSI to achieve 380 wheel horsepower on our dyno. Hopefully that addresses your question.

Cheers,
-- Chris

 

[Tytus]

Chris,

Any chance of this system getting CARB Certification? I am about to pull the trigger on the CTSC and the main motivator for me going that route is the legal aspects of the system. As I understand it it's the AEM/FIC that esentially makes your system non certifiable. Can you elaborate on your position on this matter.

Thanks,

Tytus

 

[ScienceofSpeed]

hi Tytus --

You profile shows you live in NY. CARB certification is only needed in CA.

Unfortunately, tuning options required to tune our system for the power it makes results in CARB exemption not being possible.

Cheers,
-- Chris

 

[drtruong]

hi Tytus --

You profile shows you live in NY. CARB certification is only needed in CA.

Unfortunately, tuning options required to tune our system for the power it makes results in CARB exemption not being possible.

Cheers,
-- Chris

Hi Chris,

Will the californians not be able to purchase your system legally?

 

[GT-Design]

Happy New Year Chris,

And congrats on a very nice looking application:smile:
I am not too familiar with forced induction, but I have heard the whine of American car superchargers and wondered if there was anything similar on the NSX. I believe it is a matter of preference, and kind of cool, makes it seem like there's definitely something lurking under the hood..., but some clients are wondering if something can be heard, beyond the improved exhaust note that is!

Once again, nice setup, solid gains and I'll be in touch. I need a car cover that can go over my big wing...

DJ

 

[ScienceofSpeed]

Hi Chris,

Will the californians not be able to purchase your system legally?

In CA, modifications like headers, superchargers, turbo kits, etc. legally require CARB exemption.

Cheers,
-- Chris

 

[ScienceofSpeed]

Happy New Year Chris,

And congrats on a very nice looking application:smile:
I am not too familiar with forced induction, but I have heard the whine of American car superchargers and wondered if there was anything similar on the NSX. I believe it is a matter of preference, and kind of cool, makes it seem like there's definitely something lurking under the hood..., but some clients are wondering if something can be heard, beyond the improved exhaust note that is!

Once again, nice setup, solid gains and I'll be in touch. I need a car cover that can go over my big wing...

DJ

hi DJ --

This is the quietest supercharger of any we have ever tested. There is a slight ethereal noise that you hear when you are under WOT conditions. It sounds incredible.

Cheers,
-- Chris

 

[nsxotic911]

In CA, modifications like headers, superchargers, turbo kits, etc. legally require CARB exemption.

Cheers,
-- Chris

..In other words, this kit should be considered "off road use only" Will the stuck up emissions guy notice that there isn't a CARB sticker when you go in.. even though you PASS emissions? It's hard to say.

Tell them it's CT and see what they say.
Good luck, keep us posted. As long as the car doesn't throw a CEL, I think you should be fine.. eventually...

2.1 seems like a great compromise betwen 1/6 & 2.4.

 

[Tonewood]

I have benefited many times from information posted on NSX Prime. I just noticed this thread and I think it’s time for me to offer some information in return. I consider myself lucky to have one of the first 2.1L supercharger/aftercooler systems from ScienceofSpeed. I’ve only driven the car for a week, but I can tell you that Chris has designed what may be the ideal supercharger system for the NSX. Here’s a review of my impressions so far.
<O</O
I own a 1991 NSX that I bought used about 15 years ago. A stock NSX is one of the world's great driver's cars. However, it became obvious when I started taking my car to the track that the NSX chassis could handle more power. In fact, it nearly begged for it. I had a CT supercharger installed about seven years ago and really liked the increased mid-range power it provided. After a year or two I began to think about running higher boost. Basically, I wanted to upgrade the engine in my car so that it would be more fun at the track, but I also wanted it to be completely reliable. I took my car to Scienceof Speed and Chris built a low-compression engine that could easily handle more boost. This set-up provided better performance and I was completely satisfied with the build. However, Chris felt that the 1.6L Whipple compressor (a carryover from the CT kit), even with higher boost and alcohol injection, wasn’t making full use of the engine's potential.

For nearly a year, Chris worked to design a new system, based around a more efficient 2.1L compressor. I was anxious to get in on this upgrade if Chris could make it happen. I checked in with him frequently to monitor his progress and quickly became aware of the roadblocks Chris faced. It took at lot of ingenuity and perseverance to find components and have parts fabricated for such a sophisticated system. In my opinion, the ScienceofSpeed kit is going to be a very attractive option for NSX owners who want to supercharge their cars. The 2.1L compressor moves a lot of air, has low parasitic losses, and produces lower charge temperatures than the smaller CT compressor. In addition, the system looks fantastic in the engine compartment. Everything is so nicely crafted that it looks OEM—only much prettier, as you can see in photos on the SoS website.

So, how has the system been so far? In my opinion, the SoS supercharger/aftercooler combination couldn't be better. My car is very tractable and easy to drive around town, very lively and responsive in more spirited driving, and a rush at WOT. I have an approximate quarter mile marked on a road near our house, and there's no doubt that the car is significantly faster than it was with the Whipple SC. I also like the fatter torque curve and I love the way the engine pulls strongly to redline. With the smaller 1.6L compressor, the engine started running out of breath just a little above 7000 <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-comffice:smarttags" /><st1:stockticker w:st="on">RPM</st1:stockticker>. All considered, Chris's kit has transformed my car into a truly exciting ride. It dynoed at nearly 450 wheel HP and the engine has much more torque. In fact, it produces the same torque at 2000 <st1:stockticker w:st="on">RPM</st1:stockticker> that the stock engine did at its peak. Not that I especially want to, but I can drive around town in fourth gear at 2000 <st1:stockticker w:st="on">RPM</st1:stockticker> and even accelerate from low speeds in fourth without downshifting. The improvement is impressive and very noticeable. With the 1.6L compressor on the stock engine, you needed to be in the 4000 <st1:stockticker w:st="on">RPM</st1:stockticker> range before really getting into the throttle. With the SoS set-up throttle response is excellent in all <st1:stockticker w:st="on">RPM</st1:stockticker> ranges. Blipping the throttle for downshifts is crisp and power delivery is instantaneous at any speed. At partial throttle openings, the engine note sounds expensive and exotic, with just a hint of compressor whine. My car has a Cantrell air horn and a big bore throttle body. Together they make great induction sounds (and increase "driver horsepower"). On cam, with full boost at WOT, the engine screams. It's no exaggeration to say that at full throttle the sound is addicting.
<O</O
What don't I like about the new system? At this early stage, I have no complaints. However, there are a few things worth mentioning. As you would expect, the higher output of the engine has lowered gas mileage. I don't have a number, and probably won't calculate one, but the fuel needle has dropped fairly quickly this week. Another thing to be aware of is that adding the aftercooler raises the compressor to the point where the engine cover won't close over it. I had a nice carbon fiber cover on my car and at first I thought that I would modify it with a domed area to clear the compressor. Another possibility would be to cut out a section of the engine cover or buy an aftermarket cover with an opening in the middle. However, the compressor and aftercooler look really nice on the engine and I may just forget about the cover. If you leave the engine uncovered, be prepared for a lot of attention on the road and at gas stations. Twice in the past week, guys have leaned out of their car windows and shouted questions at me, which is something that never happened when I had the engine covered. I realize that at this point I only have limited experience with the SoS supercharger system, but I would say that it is everything I hoped for. Since I started with a stock NSX 15 years ago, each upgrade has helped keep my car fresh and exciting to drive. I would like to congratulate Chris Willson for taking NSX supercharging to a new level of elegance, beauty, and performance. Nice work, Chris.
<O</O
The dyno graphs posted on the ScienceofSpeed website are from my car. If you are interested, you can see them at:
http://www.scienceofspeed.com/products/engine_performance_products/NSX/ScienceofSpeed/supercharger/dyno_plots/ScienceofSpeed-10psi-3.2L.gif