So my friend who has a clean, very well kept 2002 RSX, is upgrading his cams. I heard a rumor that his stock cams would be an upgrade for my TSX!! Im thinking free is sweet! Anyone hear the same rumor?

Make sure you read the Hondata TSX tuning first.

http://www.hondata.com/tuning_k24a2_tsx_engine.html

I've heard that it would fit. The TSX cams were reworked for 06. Without going into details and pulling out specs, I'm willing to bet that it's even more aggressive than the first gen RSX cams.

Hmmm I shall spend the afternoon researching. lol

Aren't TSX cams more aggressive than RSX cams? I thought it was K20 guys who bought TSX cams, not the other way around? I tried to look up all the angles but I can't find it now, its on k20a.org somewhere. Anyone who knows offhand?

^^ Yeah - the 06+ TSX intake cam is more aggressive than the much demanded JDM ITR/Euro-R cams.

does any one know off a company that is even thinking of making cams for the tsx?

A company named IPS was supposed to develop a set of cam kit for a TSX member, but it closed down before it has released the kit.

Still in the works.... What a long project... hahahhaa... IPS closed it's doors to the public. You can only buy through dealers now.

yeah I knew of those, but I thought they had closed down business. but good to hear that they are still up and running and are hopefully developing something?

There are a bunch of cams that many of the k24a2 swapped guys are already running. Anything that the K20a guys are running are interchangable with the k24's.

Yeah I know I read that on the hondata site.
but I got the impression that those cams made for the k20a would have to mild primary lobes as compared to our stock cams, so we almost certainly loose a little power down low and gain at the top.
I would like cams that did gain all the way across or at least not loose anywhere and gain at the top?

has anyone looked into the specs on those k20 cams and compared to our cams?

what we need is the ability to slap on a turbo! damn k-pro....

I would like to know which set of cams you are referring to that are less aggressive than our stock '06's as well as the ones that would give you power loss down low.

The reason I'm asking is because everything I've seen indicates that the Toda N2 and other setups would give mostly a midrange-power gain with some up top as well. Keep in mind you have to pair it with a good set of race headers.

Our 06 intake cam is the most aggressive OEM cam out there. However, when compared to many of the aftermarket setups (IPS, Toda, Buddy Club, etc), it's pretty mild in comparison.

VTEC switch point was set to 4000 RPM for this setup. Gains on the top end were seen from 5400 rpm increasing to a maximum gain of 16 hp from 7000 RPM to the redline. Unfortunately there was a loss in low end torque. This is primarily due to N2's smaller primary VTEC cam lobes than the TSX. However, if your goal is maximum power, this is the way to do it.


thatīs what it says on the hondata site and the dyno shows it.

And what happens when you use the N2 with stock headers? Do you lose power down low?

It's all about the combination of parts. Cams alone won't make power. You can have aggressive cams but if your supporting components don't allow the engine to rev up to the powerband to make that power, then it is also pointless.

I stand corrected. For some reason, I was thinking about the dyno charts for the Toda header/VTC/Kpro. The N2's did show some power loss down low:

http://www.bryancrower.com/makes/honda/k20ak20z.shtml


if Iīm not mistaken, crower does list cams for the TSX?
or am I getting something wrong off that site?

^^ TSX can use RSX-S cams. But most RSX cams are ground to make power up to 8000rpm. On a TSX, the last 1000rpm where most of the power is made is sealed away.

It's silly. Why doesn't N2 use a similar grind to stock for lowcam? Then down low, they can have the same as stock, and above 5000rpm, they can have gains.

yeah thatīs what I figured

but we can always use their stroker kit and do a 2.6l?