Stage 2 Complete +gearing!!!

J

jjeray

Contributing Member
Joined
13 June 2003
Messages
122
Location
Houston TX
:biggrin: I have just had Acura of Brookfield complete the installation of the Science of Speed Stage 2 kit(Cams, valve springs, ported intake manifold) along the short gear and type R final drive. Combine that with the SOS speed chip, throttle body and Taitec headers, test pipe, and exhaust and the car is absolutely amazing. Throttle response? Awesome! Torque? Awesome! Acceleration? Awesome!

Seriously it is like driving a whole new car, and the sound coming out of that car is absolutely sick! :eek:

I recommend this to anyone who is looking to seriously beef up your NSX's performance.
 
Cool mods, did you consider the comptech 4:55 gears? I am going to do either 4:55 or type rs w/shorties....
 
Man, that sounds sweet. I've been toying around with the idea of upgrading. I really like NA power over FI. The NSX could definately use a bit more "umph" when you're not in the exact right gear at the exact RPM... but when its in the sweet spot its totally awesome - I just want a bigger sweet spot. :biggrin:
 
Many congrats on your mods :smile:
I envy you.
Can you give us some more specific info (if you have any that is). Like what your RWHP is no, any other figures.
And, of course, pictures !!
 
I certainly plan to have it dynoed sometime soon. If you take the range of rated horsepower improvement I should be at around 340-350 at the crank, so about 295 to 300 at the tire.

I'll post when I have the exact numbers.
 
I can't wait to hear it.

From what I have seen from other sources, I would expect somewhere in the area of 285-295 rwhp, but it could certainly be more.

You will have to take that car down to Great Lakes and see what she runs in the quarter.

I am glad someone I know has this kit, so I can compare it to my relatively stock car (although a few mods since last fall) and to a CTSC before I take the plunge . . .

Let me know if you need a dyno facility. There is a guy off of Hubertus Rd. who dyno'd a friend's NSX recently.
 
jjeray said:
:biggrin: I have just had Acura of Brookfield complete the installation of the Science of Speed Stage 2 kit.
Click to expand...

Congrats jjeray! Honestly I am very tempted to go NA route. Even if expensive I dream about the Toda NA mods...

Do you plan to go as far as Stage 3?


A few questions, what is the best considering the 3,0L NSX engine inherent geometry and specs: a stroker kit ( like the Toda 3,5 L kit ) or increasing its bore to 3,3 L ( like the SOS stage 3 )?

what kind of power increase can we expect from a full SOS stage 3 upgrade ( with all the related accessories to get the most of it...like HE ) and also for this upgrade from Toda:

Individual Throttle Bodies
Billet Camshafts or VTEC Killer Camshafts
Campulleys
Valve Springs
Connecting Rods
Pistons
Crankshaft
Oil Pump Gear
High Power Timing Belt
Lightweight Flywheel

( with all the related accessories to get the most of it...like HE )



I am fascinated by the NA route...and maybe willing to spend a lot of $$$.
 
RP-Motorsports said:
I too can't wait to hear it! Now we need to get you to come and play with us at RA!!!!! Hey Ryan, isn't our exhaust mean as hell!!!! Just think now there will be two of us breaking peoples :eek: eardrums going up the hill into turn 6!
Click to expand...

The Anytime Race exhaust is just plain sick. I love it. :biggrin: :biggrin: :biggrin:

With the Cantrell AIS, my car now sounds the way I have wanted it to since I got it. There is still room for improvement. . .

Jason, I hope you and Sean and others will come up for a driving school, in addition to the races and touring I expect you will be doing this season.

Have you seen this thread on the Stage II Dyno results? It gets a bit off track at first, but you can find the dyno graph farther down the page.

http://www.nsxprime.com/forums/showthread.php?t=45549

Effer, I believe the SOS Stage III dynoed at around 330 rwhp, and may have been as high as 345 or so at the wheels with the ITBs and perhaps some additional tuning, ICBW.
 
Last edited:
effer said:
Congrats jjeray! Honestly I am very tempted to go NA route. Even if expensive I dream about the Toda NA mods...

Do you plan to go as far as Stage 3?


A few questions, what is the best considering the 3,0L NSX engine inherent geometry and specs: a stroker kit ( like the Toda 3,5 L kit ) or increasing its bore to 3,3 L ( like the SOS stage 3 )?

what kind of power increase can we expect from a full SOS stage 3 upgrade ( with all the related accessories to get the most of it...like HE ) and also for this upgrade from Toda:

Individual Throttle Bodies
Billet Camshafts or VTEC Killer Camshafts
Campulleys
Valve Springs
Connecting Rods
Pistons
Crankshaft
Oil Pump Gear
High Power Timing Belt
Lightweight Flywheel

( with all the related accessories to get the most of it...like HE )



I am fascinated by the NA route...and maybe willing to spend a lot of $$$.
Click to expand...
If you plan on going the NA route with TODA, plan on spending ALOT of money just for the parts. Also plan on waiting a few more years. They still do not have all of the parts necessary to complete the engine. Last I checked with them, the cams are still not ready yet. I've been waiting 2 years for them to be done. I'd check the SOS stuff out. They are tons cheaper and are ready to go now. TODA is more for race anyway. You even have to supply your own engine management as well. SOS is ready to go! :biggrin:
 
jjeray said:
I do need a dyno hookup, when can we go? :redface:
Click to expand...

The dynojet website lists the following automotive dyno centers for Wisco:

Borchardt Speed & Automotive
6101 South 27th St.
Greenfield 53221
Tel: 414-282-2390

Commercial Truck
2020 South 30th Street
Manitowac 54220
Tel: 920-682-6562
Website: http://www.commercialtruck.net

Dynotuned Performance LLC
5506 Hwy CV
Madison, 53704
Tel: 608-268-0270
Website: http://www.dynotuned.com

Michels Performance LLC
3045 Beechwood Ind. Ct.
Hubertus 53033
Tel: (262) 628-8011

Rossier Dyno Research
1340 Okray Ave.
Plover 54467
Tel: 715-341-2033

NsXMas: Jason's car is a 93.
 
jjeray said:
:biggrin: I have just had Acura of Brookfield complete the installation of the Science of Speed Stage 2 kit(Cams, valve springs, ported intake manifold) along the short gear and type R final drive. Combine that with the SOS speed chip, throttle body and Taitec headers, test pipe, and exhaust and the car is absolutely amazing. Throttle response? Awesome! Torque? Awesome! Acceleration? Awesome!

Seriously it is like driving a whole new car, and the sound coming out of that car is absolutely sick! :eek:
Click to expand...
You need to dyno & run the car to truly catalog the performance increases you're feeling....i plan on going a similar route before F/I'ing so I'm really interested in the results as I know many others would be as well....good stuff & congrats :)
 
RP-Motorsports said:
Steve and I ran into Jason @ (where else) Road America today. The car sounds sweet!
Click to expand...


:eek:
 
Last edited:
so any dyno updates? =)

i'm curious, the stage 2 sounds alot cheaper than my 02 conversion idea :biggrin:

lol!!!
 
I second that....dyno updates please! :)
 
woot yes please audio
i'd hope that with the increased overlap and lift it should sound hella cooler
 
jjeray said:
I certainly plan to have it dynoed sometime soon. If you take the range of rated horsepower improvement I should be at around 340-350 at the crank, so about 295 to 300 at the tire.

I'll post when I have the exact numbers.
Click to expand...

Am I missing something? That would mean your mod combo generated ~80HP over stock:confused:

The cams, springs and retainers reflect the SOS stage 3 package, not stage 2...and SOS only claims 52HP gained. W/ the chip I could maybe see 60HP but that's a big maybe.

DYNO PLEASE!!!!!!!!!!
 
well according to another guy with the Stage 2 he ended up with about 280 rwhp with the I/H/E + Stage 2

http://www.nsxprime.com/forums/showthread.php?t=45549&highlight=sos+stage+2+dyno
<img src = "http://www.nsxprime.com/forums/attachment.php?attachmentid=13736&d=1108611738">

given a rough baseline of 265 rwhp for a na1 + I/H/E it seems about right that cams and a tuned ecu would net you around 15 wheel horsepower.

13% drive loss puts the crank horsepower around 320 crank horsepower
 

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