biggyt

doe sit matter if you drive it at 4000 rpm in 3rd or 4th gear

pompom

does it matter?it will put unecessary wear on the engine and use more gas then if you were to cruise in the appropriate gear.

sirg-vtec

No it doesn't. Redline is 8100, you're just halfway there. Drive it how you want to. You'll just probably have to change the oil more often. Just check the oil every so often. Good luck and have fun.

WhoDoYouThink

yeah you'll BREAK it!! j/k

old_school_dohcvtec

nah you'll be fine. if you go on the freeway alot you'll be up in the 4k range (about 80mph) because of the close ratios

oilguzzler

ya i hate it, im always around 4k on the highway, ive always wondered if there was a way to lengthen 5th gear or ultimatly put in a 6 speed

tegbooster

haha getting a longer drive gear installed would be much cheaper than trying to squeeze another gear into the tranny.... either way....enjoy your close gears, im in my LS soon to install the GSR tranny...i'll sacrafice the gas mileage and the freeway crappyness for the close gears

97turboteg

your using more gas, whats the point? just do the lil extra work, push in the clutch and shift up...dumb ? shouldnt even be a thread...i dont see the point, do you want ppl to think your cars louder then it is or something???

lVlemphizStylez

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pompom &raquo;</TD></TR><TR><TD CLASS="quote">it will put unecessary wear on the engine and use more gas then if you were to cruise in the appropriate gear.</TD></TR></TABLE>

where to people get this ****??

fuel consumption is more so based on throttle position than it is rpm...you could be at 2000 rpm in 5th and stomp the gas...youll burn more fuel than if you were just cruising along at 4k...and unnecessary wear on the engine??? what??? no...if youre not pinging the revlimiter driving around town your car will be FINE..lemme know when you hear someone destroying their engine because it was revving in the motors rev range...

Vi3tboy

yep memphizstylez hit it on the nose

nsxtasy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">where to people get this ****??</TD></TR></TABLE>

Same place you get yours...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">fuel consumption is more so based on throttle position than it is rpm...you could be at 2000 rpm in 5th and stomp the gas...youll burn more fuel than if you were just cruising along at 4k...</TD></TR></TABLE>

You're confusing speed variation with gearing. Both affect fuel consumption.

Yes, you will consume more fuel if you vary your speed (and throttle position), less if you travel at a constant speed.

You will also consume more fuel if you drive (at a constant speed) in a lower gear than if you drive (at a constant speed) in a higher gear. If you drive cross-country at a relatively constant 80 mph, I guarantee you you will use significantly more gas if you do the whole thing in third gear than you will in fifth gear.

If you want to maximize your gas mileage, drive at a constant speed and keep your car in the highest possible gear without lugging the engine.

If you want to maximize your acceleration, keep your car in the lowest possible gear without exceeding redline. (Not necessarily true on some other cars, but it is on the VTEC cars like the GS-R.)

lVlemphizStylez

how are cars tuned??? have you seen fuel maps???....they are divided in columns based on throttle position...the last 50% of the columns are when your car is above 50% throttle to WOT...this is how the fuel is distributed...and if you tell me im wrong i dont think youve ever seen a fuel map...so as i said before where do YOU get your **** from....fuel is distributed more so by throttle position than it is RPM

LSvtec03

does it matter? no, not really, but you might as well shift unless you like cruising at 4k in 3rd.

nsxtasy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">fuel is distributed more so by throttle position than it is RPM</TD></TR></TABLE>

You are ignoring the fact that throttle position determines RPM. Which is why fuel consumption is determined by both throttle position and RPM; they're the same thing.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">so as i said before where do YOU get your **** from</TD></TR></TABLE>

You're TOTALLY missing the point (or, to use the foul language you prefer to show the level of your intellect, you are spewing diarrhea all over this forum).

Are you claiming that you will get the same gas mileage driving down the highway in third gear as you would in fifth gear, driving the same speed in either case? ANSWER THE QUESTION - YES OR NO. (Here's a hint - if you say yes, that is what you are claiming, then you are wrong.) And stop being such a dick.

lVlemphizStylez

rpm is not always dictated by throttle position...if you make a general statement like that you will lead people to be misinformed....which is where the bs comes from that an si tranny on the highway kills your gas mileage...my throttle position hasnt changed on the highway, but my gearing has because of the tranny change...my fuel consumption will not drastically increase even though im cruising at high rpm on the highway...

MOREOEVER....go out and drive your car...drop from 5th to 4th...your speed is constant and your pedal hasnt moved either...the rpms have changed...are you telling me i am wrong??? if so go outside and do what i just said...and see for yourself if your gas pedal has been pushed further down

If rpm is constant...then speed will change if you drop your gear (you will slow down)

If speed is constant and you drop gears...your rpm will change..not the gas pedal..

nsxtasy

Are you claiming that you will get the same gas mileage driving down the highway in third gear as you would in fifth gear, driving the same speed in either case? <FONT SIZE="4">ANSWER THE QUESTION - YES OR NO.</FONT> (Here's a hint - if you say yes, that is what you are claiming, then you are wrong.)

lVlemphizStylez

if the rpm gap is large enough to put an engine directly in the meat of its powerband...it would effect it...but if were talking about a 2000 rpm difference (which is what is being debated) THEN NO

from 3rd to 5th is too large of a gap....the difference here is between 4th and 5th or 2-2500 rpm difference...

youre talking about skipping two gears...thats NOT what the OP stated...read above

you using the most extreme examples to prove a point isnt necessary and is beyond the scope of what is being discussed...thanx

I try to keep my replies within relevance to the OP's case..you should follow that example....it helps answer questions and prevent misinformation because someone is going beyond what anyone else is talking about

nsxtasy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">if the rpm gap is large enough to put an engine directly in the meat of its powerband...it would effect it...but if were talking about a 2000 rpm difference (which is what is being debated) THEN NO</TD></TR></TABLE>

Wrong. An engine turning at a higher RPM - which is necessary if it's in a lower gear - uses more gasoline than one turning at a lower RPM in a higher gear, if they are both driving the car at the same speed.

Incidentally, there is no "meat of the powerband" with VTEC cars such as the GS-R. (I'm surprised you're not aware of this!) Compared with other cars, the GS-R has a relatively flat torque curve, so that torque doesn't vary a whole lot based on RPM. That means that acceleration is relatively constant within any particular gear. Not absolutely constant, but it doesn't vary much, the way it does with other cars whose torque falls off rapidly as RPMs rise. As explained in this article, which also reviews the relationship between torque and horsepower.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">youre talking about skipping two gears...thats NOT what the OP stated...read above</TD></TR></TABLE>

Yes, it is. The original poster asked about driving 4000 RPM in third gear - and others here noted that, for best gas mileage, you're better off driving in fifth gear. Again, you use the highest gear possible if you want to maximize gas mileage. I'm sure YOU don't drive in third gear for normal highway cruising... do you?

lVlemphizStylez

no but i do cruise above 4000 rpm on the highway and my mileage has not been affected....and yes there is a difference between where you are in the powerband...if youre cruising in VTEC then your mileage will suffer...and im still telling you throttle position is more a factor in gas mileage than is rpm...its not a myth...its not an opinion...look at any fuel map...look at how it distributes fuel...I may not be the best person around to tune a car...but i know how to do so and i know for a fact fuel is distributed moreso by the throttle position....(partial throttle vs WOT)...next time you open up crome or hondata look at those columns 1-10....5-10 is above 50% throttle (8-10) is racing to WOT and 1-5 is partial throttle daily driving...thats how i know a car is tuned...

and i think youre misunderstanding what im saying...i didnt say RPM plays NO role...im saying throttle position is the bigger factor...

nsxtasy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">if youre cruising in VTEC then your mileage will suffer...</TD></TR></TABLE>

Since VTEC activates at higher RPM, what you're saying is: "if you're cruising at higher RPM then your mileage will suffer."

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">and i think youre misunderstanding what im saying...i didnt say RPM plays NO role...im saying throttle position is the bigger factor...</TD></TR></TABLE>

But it's the same thing, because throttle position determines RPM (if you're talking about a constant speed, and a constant throttle position). If you're traveling at a constant speed in a lower gear, the throttle position will be lower, and the RPM will be higher, than traveling at that same constant speed in a higher gear.

lVlemphizStylez

gearing determines a certain rpm at a set speed and constant throttle position...so throttle position isnt always what determines rpm...do you understand that part???...vtec engages at a certain rpm...so if youre cruising below it...your mileage isnt going to be affected that drastically...gsr isnt like 5500?? (or is that the secondaries?)

nsxtasy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">gearing determines a certain rpm at a set speed and constant throttle position...</TD></TR></TABLE>

OF COURSE! That's why there are more RPMs in a lower gear than in a higher gear, when traveling at the same speed. (Are you just trying to state the obvious, what everyone already knows?)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">if youre cruising below it...your mileage isnt going to be affected that drastically...</TD></TR></TABLE>

Now you're just arguing over words - because one person may say that a difference of X miles per gallon is "drastic", and someone else may say that the exact same difference isn't. How do you define "drastically"? The real answer is, the mileage IS going to be affected. Whether you consider that difference "drastic" or not, or whether you care or not, is simply a matter of opinion.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">gsr isnt like 5500?? (or is that the secondaries?)</TD></TR></TABLE>

I guess you don't know much about the GS-R, huh? Then I'm not sure why you're posting to this topic - except that you obviously like to argue, just for the sake of argument, without any regard to practical advice.

I'll again say what I said earlier - PRACTICAL ADVICE (instead of arguing round and round about how throttle position determines RPM):

If you want to maximize your gas mileage, drive at a constant speed and keep your car in the highest possible gear without lugging the engine.

If you want to maximize your acceleration, keep your car in the lowest possible gear without exceeding redline.

Integra_drk

this is intense

DCnotTHEshoes

noooo, its fine. just keep checkin oil

lVlemphizStylez

say what you want...yes i know nothing about the gsr (ok w/e)...ive tuned a car before i know how the fuel is distributed ...you do you...and ill do me...but until youve tuned fuel settings on a car i dont think you have anything to back up what youre saying....but whatever..all youre doing is saying im wrong...youre right...no reasoning behind it...im going off of the experience i have with fuel tuning a car...and youre going off of what???