Did someone say cams? Here is 1 of 4 authentic Mugen NSX GT500 cam. Perhaps someday we can find the other 3 or at least find the matching pair so we can duplicate.
What do you guys think on using ITBs on stock or near stock engines? I think it is not much worth it, the tuning, the more gas consuption for just 15-20whp? IMO high lift cams and 11.5:1 or more CR is needed, then the next step are ITBs. I see 2 NSX here in Europe only doing 25 engine hp more than cars with stock intake. Thats not the best thing for the value.
With cars like Shawn's around I'm really quite envious of ITBs. It might still be in my future because it isn't always about performance. It's also about the drama. The sound... god the sound is intoxicating.
The only reason I have not gone to the dark side is due to the limitations of tuning almost exclusively via the TPS. I know enough about tuning that, for the way i drive my car, I don't want to be limited to a TPS dependent tune.
If someone builds a proper carbon airbox that is also appropriate and beautiful which can properly accommodate a MAP and IAT sensor I'm in!
Is this LoveFab Exhaust system made for forced induction? Or does that FI mean something else? I see you run Supertech valve springs, I have them too. You run the stock cams and use stiffer valve springs?
What do you guys think on using ITBs on stock or near stock engines? I think it is not much worth it, the tuning, the more gas consuption for just 15-20whp? IMO high lift cams and 11.5:1 or more CR is needed, then the next step are ITBs. I see 2 NSX here in Europe only doing 25 engine hp more than cars with stock intake. Thats not the best thing for the value.
If someone builds a proper carbon airbox that is also appropriate and beautiful which can properly accommodate a MAP and IAT sensor I'm in!
We offer an airbox with intake sensor port (photo below). The MAP sensor can not be in the airbox, it needs to be behind the throttle blades. Our kit attaches the MAP sensor to the vacuum distribution block.https://www.scienceofspeed.com/inde...eofspeed-individual-throttle-body-system.html
Chris (@ScienceofSpeed),Thanks for the reminder. You're right about the MAP sensor of course. Instead of putting 6 of them (one in each manifold after the butterfly) I was considering installing it in the Valve Body that controls the vacuum. Have you had any experience using this method or something similar?
That's fantastic Chris. Thanks for confirming. [MENTION=4055]Ponyboy[/MENTION], any reason why you're not using the MAP sensor if, as Chris said, you can connect it to the vacuum manifold?There is no reason to install 6. The 6 manifolds run in to the distribution manifold shown in the photo. This equalizes individual cylinder intake strokes so that the MAP sensor (which connects to the distribution manifold using the barbed fitting shown in the photo) will ready steady.
[MENTION=15180]NA1/2-R GT[/MENTION]
very impressive build
can u post your latest dyno?
I'm very interested in doing a similar build likely 12:1 or 12.5:1 to run e85
debating between 92mm bore on OEM cylinders (like many JDM builds) for 3111cc or darton MID sleeves with 95mm bore for 3317cc which was recommended by SOS and like factorX used to build.
another option is I have access to an OEM 3.2L engine & 6spd trans with only 20k miles, engine builder says with such extreme low of millage, we could just swap the higher compression pistons with no other engine work and leave the better flowing 3.2 head alone and just add cams springs ect.
Rather than porting 3.0 heads & sleeving block and replacing every bearing and rebuilding every part that generally goes along with working on a high millage block. may come out substantially less expensive with similar results to the ported 3.0 heads and 92mm bored or 95mm sleeved block
What pistons could you run on the oem cylinder liner with the 3.2 engines? I think nobody found aftermarketpistons for it to rise the CR.
I will have soon a Golden Eagle sleeved block with brian crower stroker: 3,5 Liter. The GE sleevs are good for 93mm and a lot cheaper then the Darton MIDs (2500usd incl install, bore and hone). Sure you can not go that far with the GE than with the MIDs, but I got a realy good deal on the stroker kit, it was just used for one race and it comes with 93mm pistons. All the parts looks like new. I have to do this in that case for the cheap money I got the stuff, LOL!
Target: 450hp to the engine with ITBs or your IM. I also wanna try this monster thottle body from Comptech I bought used from a Prime memeber last week. If I have 400hp with a single TB on the modified oem Comptech IM, it is okay too to begin with.
We offer an airbox with intake sensor port (photo below). The MAP sensor can not be in the airbox, it needs to be behind the throttle blades. Our kit attaches the MAP sensor to the vacuum distribution block.
https://www.scienceofspeed.com/inde...eofspeed-individual-throttle-body-system.html