fiatlux

I just noticed that the Wikipedia article for the J-series engine has been updated to include the Type-S, with the engine code J30AT (https://en.wikipedia.org/wiki/Honda_J_engine#J30AT). Looks like it was added to the page on July 24th. Does anyone know where this information came from? I had a strong suspicion that the "all-new" engine would still be a J-series engine, but this would confirm it.

supafamous

It would make a lot of sense to retain the basic J engine architecture but I also suspect there's little to no backwards compatibility with this engine and the previous ones in the same way the K20C and the K20A are only semi-related (see: https://www.jepistons.com/blog/insid...-piston-racing). I don't think the original J30 block is strong enough to be turbo charged for this usage (just like the K20A isn't really either) but I bet it shares the same bore/stroke ratio along with numerous hard points.

Edward'TLS

The Honda J-series V6 engines, as used on Honda/Acura production vehicles, are all using SOHC architecture. Is the new turbo-V6 SOHC or DOHC ?

fiatlux

According to R&T, it's DOHC.
https://www.roadandtrack.com/new-car...ower-hp-specs/

Timmy18

Seems like an assumption. The J series started out in revision A. Why would Honda go back to rev. A when it's a heavily revised engine all around, turbo, direct injected, DOHC, etc. already from rev. Y?

The current J series is on the Y revision and like the K series, has already had its A, Z, Y and W (K series only) revisions over the years. I would expect Honda to do like the K series after it's Y revision ran was over and and go with "C". So J30C1 (Like K20C1/2/3/4) in Accord Civic and RDX.

We won't know for sure until there's a dealer window sticker, someone pops the hood and looks at the block, or until Honda releases the data sheets.

leomio85

My question is, how does Honda plan to recoup development costs from this engine? The TLX-S and MDX-S are likely going to be very low volume sellers. Honda isn't exactly the type of company to build an engine just for prestige ... heck, it's woefully underpowered for a brand new engine, so its certainly nothing to flaunt about. Nor do I think they would want to keep it exclusive to Acura, seeing as sales are already minimal from them to begin with. So, what's the game plan? I was thinking today, and could this possibly be the new platform for all Honda V6's down the road? I'd assume a de-tuned engine at the very least, aiming more for fuel economy than performance, and maybe a smaller turbo to keep the Type-S owners happy. Aim for somewhere just north of 300HP. This would probably only come to fruition if it got better gas mileage than the current J35. The current Toyota V6 outpowers the J35 slightly with similar gas mileage.

I don't know. Thoughts?

fiatlux

This is why I have some doubts about just how much money/resources Acura poured into this engine. I just can't see them spending that much money on this if they can't amortize the development cost across a large number of engines. Either it will find its way into other Honda products (in which case shame on Acura for marketing this as an Acura-exclusive product), or it's heavily based off of an existing engine to keep costs down. Keep in mind that R&D is just one aspect of fixed costs; the tooling cost to revamp a line to build a substantially different engine is considerable, which is why I suspect this is heavily based off an existing design.

pyrodan007

That's what I said as well. If Acura had a V6T Hybrid and Honda only got the non-electric part, Acura exclusive does indeed make sense. As is, it's only a question of time before it's shared and gets injected into the Pilot. SH-AWD is already shared.

Tesla1856

The Honda Pilot's AWD is not the same as Acura's SH-AWD.

pyrodan007

They both do torque vectoring. It's not 100% the same, just like the eventual V6T in Honda, will be very close.

fiatlux

iVTM-4 and SH-AWD share the same hardware. Only the tuning is slightly different, SH-AWD being more aggressive and a little more RWD biased while iVTM-4 being more conservative and more traction oriented.

Acura SH-AWD: A Comprehensive Analysis | YouWheel - Your Car Expert

Edward'TLS

Previous versions of Honda AWD are not the same as Acura's SH-AWD, because they don't have torque vectoring function.

The latest Honda AWD does torque vectoring. Function-wise it is the same as the Acura torque-vectoring SH-AWD.

Tesla1856

So, since the Tuning (Programming) is different ... my statement is accurate.

Thanks posters for the further explanation. Myself (and I'm sure others reading this) understand your points.

Tesla1856

Good article.

However, they are running some lame code on the blog that prevents selection (for copy/paste) or even Printing (to PDF).

fiatlux

Turn off javascript, or open it on mobile , or just copy and paste directly from the DOM.

Tesla1856

Thank you sir, that worked.

iforyou

iTrader: (1)

There's rdx type s too. There's also another car slotted below the tlx. That too can use this engine.

And may be they can make a baby Nsx with this engine too.

fiatlux

RDX Type-S was conspicuously missing from the 4-year roadmap that was shared with dealers earlier this year, even though the MDX and ILX replacement Type-S models were specifically mentioned. Who knows if they'll actually put it into the RDX.

iforyou

iTrader: (1)

I think that's because by the time the road map was made, the RDX was not really a "whole new redesign" model.

Speed_Racer

Could it be because it would outperform a MDX Type S? It seems to have been intentionally excluded. We know these marketing plans are done much earlier than when they release a slide like that.

leomio85

If the MDX-S doesn't do well, they may put it in the RDX to see how it fares, especially since it seems to be the hottest market in the US right now. With pricing of the current MDX A-Spec and judging by the increase of the 1G TLX to the 2G, I suspect the MDX-S is going to be priced in the low to mid $60k range. They're not selling many at that price point IMO, so an RDX-S may not be too far fetched. But, there's zero news or even speculation about it at this point, at least from any credible auto journalists.

fiatlux

An RDX Type-S makes a whole lot of sense, and even if it's down on power compared to the X3 M40i it's in a segment where pure performance isn't typically the top priority. Which means it probably won't see the light of day, as an RDX Type-S is going to cannibalize the hell out of the TLX Type-S, and Acura leadership seems to have a raging boner for sedans so much so that they keep trying to make them work in this day and age.