K24a

kysit · 10-30-2005, 03:13 PM

Hi,

Is TSX engine same as Accord LE? Are both of them K24A?
If so, is the only difference the ECU?

Also, how does K24A compare with Accord V6/TL V6/RL V6. Are all the V6s SOHC without i-VTEC? Any reason not to put DOHC i-VTEC on all those engines?

Please educate me.

moda_way · 10-30-2005, 03:54 PM

TSX engine is basically the same as the Accord EXCEPT we're more stroked with a different ECU mapping, so we get more HP and torque.

The K24A2 doesn't compare to the V6s in any of the other car... its an i4 they're V6s. To date, yes all the J32s (V6 models) are SOHC and not i-VTEC. They've just done it that way and no other reason to have DOHC when you're getting all the HP and efficiency you need.

Andynolife · 10-30-2005, 07:18 PM

nah the heads of the K24A on TSX and Accord r totally different~
plus the i-VTEC on both car is function in totally different purposes ..
one for performance and one for better fuel comsumpsion (2 vtec rock vs 1 vtec rock, forgot if it's called rock ... srry for the bad english)
even u somehow ultimated ur Accord LE ECU to somewut TSX like.. the 2 engine r totally different in other aspects ... i think we went over this many times b4 .. do some search

in other words ... the K24A on TSX is acutally more identical to the K20A on RSX-S
than Accord's ~ it's basically a long stroke version of the K20A2

JeffTSX · 10-30-2005, 09:04 PM

You can find most of your answers here

larchmont · 11-01-2005, 07:56 PM

Quote:

Originally Posted by moda_way

TSX engine is basically the same as the Accord EXCEPT we're more stroked with a different ECU mapping, so we get more HP and torque......

That's what I had thought.
But when we were talking about this a few months ago, I thought Noel said there were no mechanical differences at all.
I suppose I could have missed some nuances though.

This is actually a long-time debate on all the TSX sites. I'm surprised it's so hard to pin down. I've been thinking of just writing to Honda/Acura and asking straight-out if they could tell us exactly what the differences are, and maybe when I get a little spare time

I will.
Whenever we discuss it, most of the car-philes say there's no difference between the TSX and the Euro, then when we get further into it some people say there ARE some differences but they're only minor, and we argue about how major or minor they are, and then somebody else comes in and says it's not true, there are no differences at all.

Noel · 11-01-2005, 11:54 PM

I just saw my name being mentioned.

Erm Larch, the comparison here isn't the TSX vs Accord Euro. It's the USDM Accord which if I'm not wrong shares the same engine as the CRV instead. You getting confused or am I confused now?

larchmont · 11-02-2005, 01:55 AM

OK, let's take a poll: Who thinks Larchmont was confused, and who thinks Noel was confused?

Hint: The answer begins with L.

Andynolife · 11-02-2005, 03:09 AM

denfinitely be u, my frd ... ~
he is the "Global Technical Support"

and u can see he is getting imporvement on the response time from 72hrs to 24hrs ..

good work Noel

or maybe im confused ?? ~ cuz when u first mentioned Noel said they r the same thing ... i was really confused

Noel · 11-02-2005, 08:02 AM

Andy, you're the first one to realized my lowered response time.

As for what the topic is on about ... I'm definitely confused. If I've made a statement previously that the USDM Accord and the USDM TSX shares the same engine right down to the internals, I must seriously apologize for that blunder. If, however the comparison is between the Accord/Accord Euro and the TSX then I'm definitely not confused.

larchmont · 11-02-2005, 11:59 AM

You're definitely NOT confused. Indeed what you had said was about the TSX and the Euro Accord.
I was confusing this thread with another one where we were talking about THOSE two cars, and so I referred to what you said (a long time ago) about THAT comparison.
My bad.

sjlee · 11-02-2005, 02:15 PM

The TL might not have i-VTEC, but it still has VTEC. Makes you sort of wonder if they did make the V6 DOHC with i-VTEC, what kind of performance would you get? The NSX has DOHC, so I can get an idea of the kind of performance increase, but I'd assume that i-VTEC would give you even more.

Noel · 11-02-2005, 05:57 PM

The C32b found in the NA1/2 is unique in that category. All other Honda V6s are SOHC VTEC. The DOHC is strictly restricted to its supercar flagship. Why Honda has not pursued developments in that direction could be the fact that it can/could topple the NA1/2 making it "phased-out". So, until the new NSX is produced and completed. I don't think we'd see any improvements in this aspect.