Okay guys, I've been noticing that my nx2000 hits over 4000RPM when cruising around 80mph on 5th gear, and a friend's galant stays down at 3k at that speed. I've also drove my sister's 1.6 sentra at that speed and her RPM didn't seem that high. Is my car out of tune or am I just getting paranoid??
TIA,
Nick

ours cars are just geared that short for better performance... *** i dont really need that short 5th gear since i dont race in 5th.

anyawys, civic si's and integra type r's wil do about the same at that speed.

it might be an annoyance if uve got exhaust and whatnot... but i like the power on tap :D

80 at 4k? im probly doing about 100 at 4k in my nx.

Originally posted by Limited Slip
it might be an annoyance if uve got exhaust and whatnot... but i like the power on tap :D

Yes it is very annoying with my exhaust system, and I'm beginning to get very irritated because my sound system got stolen a few months ago and now I'm noticing that my car is very loud at 4k RPM.

92nx2k, do you have any suggestions on why my RPM is so high? ( Guys keep in mind that I have about 150k on the clock, and my NGK wires and Bosh +4 plugs are only a few months old)

I haven't changed my distributor cap and rotor in more than 2 years so can that be it??
Any ideas guys/gals??

just to make sure, im going out for a drive right now. ill be back round 5, and ill tell you for sure exactly what my rpms are at, cause i could be wrong. ill ask some people about the problem but i cannot tihnk of anything that could be causing that, not if its a 5spd.

4k @ 80mph is normal so is 3k@ about 60mph...ive seen b16a trannies run 4.5k@ 80 so i guess ours aint that as bad.

I don't think that is right 4k at 80mph in 5th gear only because in 3rd gear at redline you should be at or around 90 mph so a shift to 4th would be round 4.5k. That's on my car and my friends classic.Just my .02cents.

4k @ 80mph is normal so is 3k@ about 60mph

This is correct and normal for our short geared cars. And tuning has nothing to do with what rpms your car turns at a certain speed. It's all gear ratios and final drive.

That was an excellent question, one i have been wondering about myself. Good to know that my NX isn't as f*?k up as I originally thought.

I also wondered that about my NX - I'm at about 4k @ 80 also... however my G20 will run about 3k+ at the same speed and its an auto... just a lot quieter....

Okay it seems like most of you guys agree with me except for RUTH'LESS NX2K, so I'm not so paranoid anymore. ;) Anyways, Im going with a BB DET in about a month so I'm hoping this wouldn't be a problem with that engine, any thoughts on that??

I see no reason why it would be any different with a DET - the tranny will be the same - only thing that may make a difference is a different wheel and tire combo. Its the wheels/tranny that determine RPM's of the engine at a given speed. A turbo does quiet things down in the exaust dept. - so maybe it won't sound as bad :-P

Chris

1BAD_NX I do agree with you now that i got in my car and saw it with my very own eyes I was at 4K @ 80.Guess I never really paid attention to that aspect.

3K doing 60 is about right. In 4th gear, your speedo and tach should be dead even/parallel or whatever. BTW Suckit? When the hell do you work? I comee by and you are never there. I was driving the 42 Sunday and I did not see your car.

mine is at 42-43k rpm at 100 mph. i have an automatic maybe thats making a difference.

Originally posted by MauiBlueGride
I see no reason why it would be any different with a DET - the tranny will be the same - only thing that may make a difference is a different wheel and tire combo. Its the wheels/tranny that determine RPM's of the engine at a given speed. A turbo does quiet things down in the exaust dept. - so maybe it won't sound as bad :-P

Chris

That makes a lot of sense, thanks for the enlightenment MauiBlueGride. So what about the quaife stuff people do on trannys :confused: (Someone please tell me what that does and if that could lower the rpm on our cars)

Originally posted by 92nx2k
mine is at 42-43k rpm at 100 mph. i have an automatic maybe thats making a difference.

Yeah I think the auto trannys are much lower with rpms, or at least thats what I noticed on my friend's se-r.

Originally posted by Pretty White
3K doing 60 is about right. In 4th gear, your speedo and tach should be dead even/parallel or whatever. BTW Suckit? When the hell do you work? I comee by and you are never there. I was driving the 42 Sunday and I did not see your car.

Sundays and Wednesdays im there but i dont drive all the time cause its only 5 min walk. You drive the 42 now?
As for the tranny i might try what timmy suggested and swap 2nd and 3rd gear out of the Gti-r tranny into mine...Ian, as you know this was how he said his brother did 12.2@109 from the low 13's he ran originally.

Also the G20 has a taller tire, that will make the effective final drive change so the car will rev a bit lower.

The DET is a bit quieter but not all that noticeable at 80mph, although its quite easy to entertain yourself by slightly pushing on the throttle and getting into boost.... it makes cool noises :-)

SucKit
wrote:

Sundays and Wednesdays im there but i dont drive all the time cause its only 5 min walk. You drive the 42 now?
As for the tranny i might try what timmy suggested and swap 2nd and 3rd gear out of the Gti-r tranny into mine...Ian, as you know this was how he said his brother did 12.2@109 from the low 13's he ran originally.
<end qoute>

Suckit - I think I've read about everywhere that a GTiR tranny gear won't work - two problems - one its AWD, second I've heard most are autos. Only way to use a tranny other than ours is to use the whole tranny. Only gears you can swap are G20 tranny gears into another SE-R tranny case.

Best of luck though.
Chris