All motor NSX.

[NemesisX]

14K for 475 HP and bulletproof ALL motor?? Hell yes id be interested!!!

I say go for it!! No one thought they could put a man on the moon either.....now, launches into space are so commonplace no one even watches them.

 

[slashmatt]

You're not the only one doing this, but $14k seems a little low for the price. I mean, just a Toda crank and con-rods will run around $10k, no labor. Then you've got to get sleeves, custom pistons (to go overbore because the Toda ones won't do the job), custom cams, a computer, springs, retainers, cam gears, fuel system. The labor alone (if the engine is still in the car) should be close to $5k. Then, you'll probably also need better main bearing caps (don't know the technical term), bigger injectors, and probably a custom ignition system. I know someone doing a motor like this, and it's a $40k job.

Good Luck.

 

[Juice]

From my understanding, you just need an engine? Or do you also need the funding for the first one as well? There has to be an NSX engine out there that you could get for a relatively good price. I can't tell if you are just guaging interest or if you are seeking actual donars.

 

[Alittleboost]

14K...is a good chunk of money, to me its another car to drive around.


First I don't know how you are going to get 470 crank without the use of ITB's....but also I'm not a engineer.


But what compression is the motor going to be? The guys over here in cali are only supplied with 91 pump gas, or is this a fully race motor only?

Also what sleeves are you going to use? I trust only a few selected sleeve manufactures for honda's, and will this keep the open deck design or closed deck?.

 

[awsomr1]

Barn Man, I see lots questions from other members here. Let us know what you need, I'm sure although we question you method and parts use, we all would love to see it done. Keep it up and update us frequenly..

 

[RP-Motorsports]

I would recommend you to talk to Comptech. They have vast experience building race motor, not only NSX. They are very reputable high end race engine builder.

And after a season of constant engine failures in the late 90's, PD cunningham stopped using them.

It is true about Honda's NA motors. Just look at Skunk 2, and their all motor world record car. It is common to get an extra 100 bhp out of a 1.8L, so if you can do that to each 1.6L bank, then you have 490 bhp flywheel.

 

[NSXTech]

Do you know anyone who would work 8 hours at their day job, leave on a friday after work to drive to Orlando from Nashville Tn, (10.5 hours), get 3 hours sleep, work 16 on an NSX for a customer, (Sat) sleep another 6 hours, work another 16 hours, (Sunday), sleep 4 hours, drive home to Nashville, and then go back to work the next day?
Barney

Barn, Only an 8 hour day job? Woos. (g)

The answer to your Q is, yes.

 

[peiserg]

Well, if SOS is able to squeeze 346 rwhp (390 crank??) with their work, I don't see why with a more radical engine build you couldn't get up to the mid 400's? How to go about getting there is the whole point in this exercise, correct? More radical cams, higher compression, larger displacement? Just be aware there are a lot of nay-sayers out there, and try to ignore them. Even after SOS posted actual dyno numbers, people were still harassing them!

 

[BioBanker]

Do you guys know this guy?

If not, it is shocking to me that someone posts on the internet that they believe they have a way to get 475HP out of a NA NSX engine for $14k and all they need is your engine and your money and we've got a few people ready to go for it.

 

[Andrie Hartanto]

And after a season of constant engine failures in the late 90's, PD cunningham stopped using them.

It is true about Honda's NA motors. Just look at Skunk 2, and their all motor world record car. It is common to get an extra 100 bhp out of a 1.8L, so if you can do that to each 1.6L bank, then you have 490 bhp flywheel.

Actually, the season you're talking about, the motor was not built by Comptech anymore. It was all Realtime built. They parted way before then.

That being said, it's not fair to attribute the failure to engine builder (Realtime in this case) without knowing all the facts. The fact is that competition is rising every year. Each year they have to get more and more out of the engine. That year, pretty much put the testament where the NSX engine limitation is. Which prompted them to use Supercharge.

 

[MJK]

Do you guys know this guy?

Yes.

I know NO ONE in I trust more in the NSX community professionally, and very few personally. I will say that in my dealings with Barney he goes out of his way to get things done quickly, perfectly and honestly even if that is at his own expense or inconvienence.

 

[BioBanker]

Yes.

I know NO ONE in I trust more in the NSX community professionally, and very few personally. I will say that in my dealings with Barney he goes out of his way to get things done quickly, perfectly and honestly even if that is at his own expense or inconvienence.

Now you've got me excited also!

Could it be real? WOW if it is.

 

[Griffen]

Do you guys know this guy?

If not, it is shocking to me that someone posts on the internet that they believe they have a way to get 475HP out of a NA NSX engine for $14k and all they need is your engine and your money and we've got a few people ready to go for it.

Yes, Barney is a first class tech! He's honest, hard working and above all fair. I would trust him with my NSX in a second.

 

[White92]

Is the engine builder that you've found the same guy that's commonly referred to online as "The Old One"?

 

[newby]

Impressive numbers I must say. And $14K is well worth it to me. I'd be up for it in a year or two. I'd like to own the car for a few years before doing such a major upgrade.
I know you are still in the planning and estimate stages...but are you thinking $14K Everything included? Meaning, installation and misc things needed to make it work.
Also, can the other components of the NSX handle such large amounts of HP? I mean your almost doubling the horsepower on the 3.0L NSX.
I like your desire to improve an almost perfect car!!

 

[White92]

Here is kind of a relevant addition to this thread. Toda's parts to take the 3.0 to a 3.5 has a claimed hp output about the same as what Barney is wanting to do, but just the Toda crank alone is $9k!, so if Barney's engine works, which I hope that it does, we are all in for a real nice advancement in NSX NA performance at a nice price!

 

[Barn Man]

Barn Man,

I would recommend you to talk to Comptech. They have vast experience building race motor, not only NSX. They are very reputable high end race engine builder. Among others Juan Montoya Winning Champ car and Indy 500 car. Nowadays they are building Mazda protege engines for World Challenge.

They built us our race motor build by Comptech using 3.0L and high compression can only make close to 400HP with stock intake manifold. With their 3.4L kit and ITB it will make close to 500. But because we are using stock block, it is not recommended.

From my understanding, to build any NA motor over 400 HP you will need special engine block. They showed me the Engine block supplied by Mugen for their race motor. This block is manufactured by Mugen, not Honda. It is closed deck design with lots of ribs to strengthen the block. Similar block the JGTC cars uses.

BTW, I will be very surprise if the cost is only $14K. Let me just say to build the 3.0L race engine easily doubled the cost.

I've talked to Comptech MANY times. I think it can be done for a little less than CT wants. I have a good relationship with them. They are one of the best no doubt. I'm not taking anything away from them at all. I just think I can do it a little cheaper without sacrificing durability.
Barney

 

[Barn Man]

Barn, Only an 8 hour day job? Woos. (g)

The answer to your Q is, yes.

Mark, YOU are the man! I'm just following in your footsteps. Great to hear from ya man. Yell at me if you get a chance.
Barney

 

[Barn Man]

Impressive numbers I must say. And $14K is well worth it to me. I'd be up for it in a year or two. I'd like to own the car for a few years before doing such a major upgrade.
I know you are still in the planning and estimate stages...but are you thinking $14K Everything included? Meaning, installation and misc things needed to make it work.
Also, can the other components of the NSX handle such large amounts of HP? I mean your almost doubling the horsepower on the 3.0L NSX.
I like your desire to improve an almost perfect car!!

This price doen not include installation. Sorry. And your right, it's hard to improve on such a wonderful platform. I wish they would have built the blocks a little stronger from the factory though.
Barney

 

[nsxtasy]

I also have a local guy who is very good with Honda motors. Perhaps you could send him the kit.

Barn Man is located in Nashville, which is an easy drive from most of the eastern half of the country.

Barney, if you accomplish this, you're going to be VERY busy...

 

[isellpower]

Barn Man is located in Nashville, which is an easy drive from most of the eastern half of the country.

Barney, if you accomplish this, you're going to be VERY busy...

Omaha here. Smack dab in the Middle. While not as far away as it was when I bought it, it's still about 1K per trip each way to get it there. By the looks of all the recomendations, I don't think I'll need to visit the car while it's there.



Barn man,
If I send you just the motor could you do the work and have it sent back to me for install?

 

[Barn Man]

Do you guys know this guy?

If not, it is shocking to me that someone posts on the internet that they believe they have a way to get 475HP out of a NA NSX engine for $14k and all they need is your engine and your money and we've got a few people ready to go for it.

No, nobody knows me around here. I only work on Ford escorts here in Nashville. I just thought I'd chime in with an outrageous claim.
I know this sounds too good to be true, but I'm gonna try this. If it doesn't work, you guys will be the first to know. I'm not hidding anything from anyone. Just trying to help the guys have another avenue to go with. N/A is always more impressive than forced induction in my book. But, what do I know.......nobody knows me around here!
Barney

 

[Barn Man]

Omaha here. Smack dab in the Middle. While not as far away as it was when I bought it, it's still about 1K per trip each way to get it there. By the looks of all the recomendations, I don't think I'll need to visit the car while it's there.



Barn man,
If I send you just the motor could you do the work and have it sent back to me for install?

Possibly. Let me see how this goes before I say I'll ship them out for install. Like I said before, I want to make sure they are right before they leave. If I can make this a plug and play kinda thing, sure.
Barney

 

[Barn Man]

Is the engine builder that you've found the same guy that's commonly referred to online as "The Old One"?

No. Different guy.
Barney

 

[Barn Man]

Barn Man is located in Nashville, which is an easy drive from most of the eastern half of the country.

Barney, if you accomplish this, you're going to be VERY busy...

Thanks Ken, I hope I don't let everyone/myself down on this. Things may change as the build goes along, price, parts, etc. This is why I'm not saying much about the exact parts/prices as of yet. Things are subject to change. We'll have to see how things go. I told you guys I'm gonna be up front and honest about all this. You can count on that.
Barney