for those with 6 spd, at what rpm do you shift? in what gear do you cruise when going 50-60?

also, when you redline, what does it feel/sound like? does it feel like there's a governor (and cuts off fuel), or what?

btw, i know the tsx isn't the fastest car, but have you raced any sporty coupes (i.e. celica, eclipse, accord, etc)? how'd ya do?

 

For normal driving, I shift around 3500-4000 RPM. If I'm trying to go fast, I shift at about 7100-7250. Redlining feels great, the engine really sounds healthy at those kinda speeds. It's not buzzy/reedy and doesn't vibrate excessively if that's what you're asking.

I think we've established that fuel cut is at 7400 RPM. I've never revved it that high, and don't plan to but I imagine it'd feel like your engine just cut off (and you'll feel thrown forward b/c you're not accelerating anymore).

The only car I've raced was a previous generation BMW 318i sedan. I know it's not a "sporty coupe", but he lost (of course).

 

If you're going for all-out acceleration, you need to shift closest to cutoff possible without hitting it (obviously). This way you will end with RPMs close to 6000rpm on the next gear, where the power is.

 

speaking of this I wonder if mags ever ran full out acceleration tests taking it up to 7400rpms...or if they shifted at 7100.

 

Hee. Hee. In some makes, the ECU saves a code when you exceed the engine redline and the dealers will hold this against you.

 

Hee. Hee. In some makes, the ECU saves a code when you exceed the engine redline and the dealers will hold this against you.

Incidentally, there was a discussion in another thread that suggested if you do the 5-6 shift too early, you can't go any faster because you are likely to end up below the V-TEC switchover after the shift, but if you delay the shift until somewhat after the redline, you can go 10 mph or so faster.

 

I'd like formal proof on your 1st statement.

Second statement is exact.

 

You're right, they can't do that. It's illegal in NA. This is the same as the whole M3 launch control fiasco.

 

I can't search VWVortex by content (titles only unfortunately), but a quick search turned up this thread:

http://forums.vwvortex.com/zerothread?id=1054359

The "warranty void" part is a joke on the part of Ross-Tech -- their VAG-COM tool shows a different message than the standard VW tool, but it's clear (at least in some VW's) that ECU saves a code when the rev limit is exceeded -- the CEL even comes on. Folks over there are always asking about this code turning up.

No, I don't have formal proof that a dealer has ever denied service because this code was present.

 

since when did the fuel cut off point turn to 7400
from what i read in the specs and have experienced from redlining is that it is 7100. and you cant pass that

 

yeah it's a hard cut off... not something you want to do over and over, I'm sure the engine is stressed when this happens... i don't understand why they couldn't do a soft cut off.

 

See this thread. Redline is 7100, yes. But redline does not equal fuel cut RPM. I was surprised how much they give you to play with (300 RPM over redline!). The whole reason I posted that question was because I assumed it'd be somewhere like 7200.

That being said, I don't think I'll ever consciously try to hit 7400 RPM. As I said in the other thread, I hit 7250 and came back in one piece (with no fuel cut). That's plenty for me.

If your engine is cutting at 7100, maybe there's something wrong....

 

with some mods I wouldn't be surprised if peak power isn't moved up to over redline ..makes you kind o fhappy that you have those extra revs to play with. BTW piston speeds in a motor with 99mm stroke @7400rpms are insane...very high tech stuff.

 

Indeed. Interesting, Civic engines have a 94.4mm stroke even with a comparatively much smaller engine displacement (1.7L)

 

Not the same block, and a much smaller bore than K24.

 

I wasn't saying that it was, only that the stroke is also quite long comparatively speaking. At any given RPM, piston speeds in the Civic are thus only about 5% less than in the TSX (and higher than in many other makes).

 

That's true, but smaller bore = smaller piston crown = less inertial mass being thrown back and forth. Still interesting, though. I didn't know the 1.7L stroke was that long. What's the torque number on that engine?

 

Anywhere from 110 @ 4500 to 114 @ 4800.

Since my 1.6L Integra was 105 @ 2500-5500 (if I remember correctly -- been a few years ), this strikes me as respectable but not particularly exciting...