I'm a new owner of a 2005 NSX-T.. I like SOS twin turbo but I hear CT is more reliable..
Any info would help, Thanks
Any info would help, Thanks
I'm a new owner of a 2005 NSX-T.. I like SOS twin turbo but I hear CT is more reliable..
Any info would help, Thanks
I should see a little better than 425 whp at 8 lbs boost. I believe that is the target that the stock chassis, clutch and engine can reliably handle . And, is what the NSX should have had by the late 90s or early 2000s. I have the NSX-R chassis stiffening kit and sway bars with Bilstein shocks. Once the clutch wears out I'll probably go with the Sport 275 clutch.
Dave,
I've always wondered about your reasoning for running less power on the track. Any particular reason? & how is it achieved - boost controller + switchable tunes on your EMS?
great comparison of the options! so, in NA mode, what's the best path to get to that 320 whp number?Depending on what you want your NSX to do, Street, Drag, HPDE Track, Ralley or whatever else you can think of will help to determine your needed power level. Power level will determine reliability and cost.
Unless you plan on drag racing 400whp in an NSX is like having 550whp in a Mustang or Camaro, so without a frame of reference for your 450hp power goal it is hard for me to tell you what system is better for its intended use.
I have owned both a CTSC and a Twin Turbo NSX, they both have their own virtues, but I can tell you for my use of the NSX (littel street, lots of HPDE Track time) having started with the CTSC and moving on to a Twin Turbo I will not be going back. The CTSC just does not meet my needs for a track car without a lot of modifications to the CT system and at that point you may as well have all the other benifits of the Twin Turbo system. If you lived in CA and had to deal with all the CARB crap those guys have to deal with then the CTSC is about the only option if you want FI on your NSX and be legal.
I can tell you what I have had and currently have:
CTSC HiBoost - 370whp fun on the street, not enough power to get into any real trouble, the chasis still felt a little underpowered. On the track after the blower and intake heat soak you will be making less than 320whp by about your 4th or 5th lap. With a lot of work to a N/A 3.2l you can get real close to the 320whp number. It will cost more and have almost no room to grow but a 320whp N/A setup would be more reliable than the CTSC in the long run. A healthy stock 6sp clutch will hold the CTSC power levels, 5sp clutch is less likely to survive.
Twin Turbo - Street Tune 8.4PSI 447whp stock bottom end, more fun on the street, will break the tires loose at the top of 2nd gear if you do not have real sticky summer performance tires, about the limit for a stock NSX chassis without making wise suspension and alignment choices. Upgrade your suspension to coilovers, run the proper allignment, upgrade sway bars, add the non-compliant joints and you can go farther but the main limiting factor to how much power you can put down is rear tire size. So unless you go widebody you are going to be tire limited power wise before the chassis gives up. If you want a ballanced handling chassis the front tires are even more limiting. As noted above you will need a clutch upgrade.
Twin Turbo - Track Tune 6.4PSI 400whp still fun on the street, no traction issues once you get out of 1st gear, seems to be the sweet spot for the chassis with stockish suspension and a good summer tire. A 275/35/18 can handle the power level and with the addition of higher rate sway bars and a good tire you will not upset the ballance of the NSX chassis. Another issue that will show up with track use and added power is the OEM brakes will be stressed beyond their design goal so you will be looking at a brake upgrade as well in the not so distant future. As noted above you will need a clutch upgrade.
Since you already own the NSX and are now doing the research on power adders you may want to spend some time searching through the "Forced Induction" part of the forum, this and just about every topic related to all of these system as been discussed to death over there.
Best of luck with your new car, the NSX is great car for most and an addiction for the rest of us.
Dave
I've found a blower's more fun on the street than a turbo setup, assuming it meets your power goals. I've heard of people getting > 500 whp on *built* 3.0L motors by deleting the intercooler and using meth for cooling. My understanding is that some intercoolers can be incredibly restrictive, and rob many lbs of boost.
great comparison of the options! so, in NA mode, what's the best path to get to that 320 whp number?
I'm a new owner of a 2005 NSX-T.. I like SOS twin turbo but I hear CT is more reliable..
Any info would help, Thanks