Toda kit

[White92]

Does anyone know anything about the Toda engine kit for the NSX? I was just looking at their website and came across parts that they sell there. They have a new crankshaft, rods, and pistons for sale that is supposed to change it to a 3.5. They also have cams for sale, but don't list any specs or price for them. I added it up and for the crank, rods, pistons, and valve springs, it's $14,800 (just for the parts) There was no price for the cams, so obviously it will be quite a bit more. I'm just looking for info on these parts. (specs, performance, anything really.) Has anybody done this? Know anyone who has? I would email them, but I've emailed them twice for info on their RSX cam kit, but have not had a response. Normally their pretty good about that. Thanks.

 

[Eddy]

I just asked for a quote from Japan on the Toda parts.. The cams are still under development.. Unless you can afford the crankshaft, I don't think it's worth the while to go 3.5L.. Anyways.. If you are interested, we can order this stuff together later.. I have gotten prices for the valve springs, cam gears and flywheel only though..

Eddy

 

[White92]

Actually I'm not so much interested in buying this kit as I am interested in finding out specs, etc for it. Also, more of the rarity that there is actually a full N/A kit for the NSX, unlike the B series engines where they're a dime a dozen.

 

[White92]

I emailed Toda last night and recvd a reply from them by this morning regarding these parts. I asked them about what they had or recommended in the way of an ECU as well. Here is their reply:

Thank you for your e-mail and interest in TODA Racing. TODA NSX parts are
still in the development stage. We have in house web design capabilities,
so as soon as more product details are available, we'll update our web site.

We don't offer an ECU. 95% of NSX race customers use MOTEC engine
management. You can expect about 430~480hp with our products.

Best regards,
AKH Trading/TODA Racing USA
Tel 714-327-0181
Fax 714-327-0184
www.todaracing.com

 

[NetViper]

So they are saying that with their products, you can get NA 430-480HP/ps.

With 3.5L that would be roughly 122-137HP/L...

That is A LOT... more than the SC kits... is that possible?

 

[Juice]

430-480? That is a VERY big range there! 430 can be achieved with a major overhaul on engine dynamics. 480 would be miraculous if not total BS. If 440 is achieved, they have done pretty much everything you can do to this engine. But at what cost? For the same investment you could create a 500-600 HP engine with reliability.

 

[White92]

You are right Juice. It would cost a small fortune to get those numbers with their kit. That's why they are sold as racing parts. Have you seen the parts yet on their website? The Crankshaft alone is $8k. Pistons $2400. Plus you have rods, cams, gears, springs, retainers, etc.. Not to mention tuning with Motec or whatever. But it does change it to a 3.5L. By the way, I did email Toda back about an hour ago and they've already responded. I wanted to know if that was whp or what. Here is their response:


The power numbers are crank horsepower. We don't like to quite wheel hp due
to variances and inconsistencies in chassis dynos. The torque will be
higher as well, in the mid 300's, but this all depending on tuning and
exhaust manifolds.

 

[Eddy]

125hp/L is not uncommon now a days. My little race car has a 1.6L engine and it produces 200hp to the crank using 100 octane gas. Most production sports cars are going for 100-120hp/L now. Most Speed WorldChallenge race cars run 2L engines that produces in the range of 250-280hp.

Let's not fool ourselves here though. To make that kind of power, you are not going to be able to meet most emission standards and you are not going to be able to run 87 octane gas. And let's remember, you are not going to be making that kind of power at 3000rpm. It's more like at 9000rpm. We are still dealing with 3000cc here and not some 8000cc monster truck engine.

Reliability all depends on the quality of the parts, assembly and the amount of abuse it's put through. A grandma driving a F1 car would make the engine last thousands of miles. A F1 driver would make it last about 500 miles. And a miss shift would make it last about 5 yards. It all depends on where you set the margin and how far you are willing to cross it.

In regards to Toda's components.. Their claim isn't impossible. JGTC NSX GT500 race cars run 3.5L NA NSX engines and usually make upwards of 400-600hp. It all depends on tuning given equivalent parts.

Eddy

 

[Arata]

Stock 600CC motorcycles make 100 plus Rear Wheel HP and 1000CC are up to 148 HP at the rear wheel, that is off the showroom with stock everything.

 

[White92]

125hp/L is not uncommon now a days. My little race car has a 1.6L engine and it produces 200hp to the crank using 100 octane gas. Most production sports cars are going for 100-120hp/L now. Most Speed WorldChallenge race cars run 2L engines that produces in the range of 250-280hp.

Let's not fool ourselves here though. To make that kind of power, you are not going to be able to meet most emission standards and you are not going to be able to run 87 octane gas. And let's remember, you are not going to be making that kind of power at 3000rpm. It's more like at 9000rpm. We are still dealing with 3000cc here and not some 8000cc monster truck engine.

Reliability all depends on the quality of the parts, assembly and the amount of abuse it's put through. A grandma driving a F1 car would make the engine last thousands of miles. A F1 driver would make it last about 500 miles. And a miss shift would make it last about 5 yards. It all depends on where you set the margin and how far you are willing to cross it.

In regards to Toda's components.. Their claim isn't impossible. JGTC NSX GT500 race cars run 3.5L NA NSX engines and usually make upwards of 400-600hp. It all depends on tuning given equivalent parts.

Eddy

These Toda components ARE 3.5L. I'm sure they are slightly detuned, but they are still sold as race parts obviously. I bet with alot of tuning, one could even get those same numbers as the GT500 cars.