I just started driving stick on my new 93 prelude si and I was wondering what would be the best RPM for gas efficiency and to prevent much engine wear? And what RPM should I be shifting at for normal driving? Right now I shift at about 3k. I was reading somewhere on here that our preludes like to rev high. But I'm pretty sure the h22's redline at 7500 compared to my h23's 6500, so I'm not sure if that statement is valid or not.

The engine has about 137k miles so it's gettin up there.

Thank you all in advance.

 

3k is fine..i shift at 3000-3700. i just like to hit boost
3k is a nice number..i kind of realized that if i shifted at lower than 3k..my gas mileage sucked..i used to shift at like 2700 or so..i got 300 miles for like ~14 gallons of gas. now im getting about ~330 for ~14 gallons of gas

 

we run real rich over 3500 so I usually keep it between that and 3000

 

if you want the best mpg, shift around 2500RPMs....if you shift around 2500RPMs, stay the hell outta my way because i don't want to stuck behind your slow ***....for a comparison, i shift anywhere between 4250 and 6500 and get 24mpg in my H22....so don't feel like you need to baby a sport coupe....it's not worth the frustration of going nowhere quickly

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kronn 98SH &raquo;</TD></TR><TR><TD CLASS="quote">if you want the best mpg, shift around 2500RPMs....if you shift around 2500RPMs, stay the hell outta my way because i don't want to stuck behind your slow ***....for a comparison, i shift anywhere between 4250 and 6500 and get 24mpg in my H22....so don't feel like you need to baby a sport coupe....it's not worth the frustration of going nowhere quickly</TD></TR></TABLE>

HAHAHA thats the spirit

 

I usually shift at around 3000rpm in my 92 Si, and that gets me 30mpg.

 

Also, for better mileage don't WOT it everywhere. At Wide Open Throttle the ECU dumps in more fuel to keep the possibility of detonation down. part throttle = leaner = less gas.

It also would not hurt to check your tire pressure...

Pirate

 

Thank you all for your replies. Seems like you get the best of both worlds by having a 4 cyl sporty car, gets ya there quick and still good on the gas.

Thanks for the WOT tip. I'm still learning to drive the thing even so I'm not going to be super speedy all over the place. I also don't race or any of that stuff. I'd hit the track if I wanted to.

What tire pressure should I have?

Thanks again!

 

tire pressure does make a big difference, the lower the pressure the lower the gas mileage will be.

 

I'm also in need of some new headlights cause one of mine is cracked. Would something like this work out fine? http://cgi.ebay.com/ebaymotors...sting

Here's my car's headlight

 

i shift between 2500-3000 just take your time getting up to the speed limit. I dont care if people go around me, but if you haul *** and ride my ****** bumper YOU WILL BE BRAKE CHECKED! My car is bone stock now i have nothing to lose, just thought u ****** bastards that tailgate should know.

 

Haha, thank you, and I dislike tailgaters as well. So gas mileage isn't all RPM haha? Like if I am heavy on the pedal yet stay below 3500 i'm gonna get screwed for gas? Sorry for my ignorance, still learning...

 

Get JDM headlights if you want to replace yours. Ebay headlights are crap.

If JDM lights are too expensive, I have a set of USDM lights for sale.....

 

best fuel efficiency mph wise = 55 mph

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lude_roller &raquo;</TD></TR><TR><TD CLASS="quote">best fuel efficiency mph wise = 55 mph</TD></TR></TABLE>

Obviously why it used to be the national speed limit before the law that allowed each state to decide its own. I wish it would go back to fifty five so that i would stop getting passed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lude_roller &raquo;</TD></TR><TR><TD CLASS="quote">best fuel efficiency mph wise = 55 mph</TD></TR></TABLE>

I've always read it's closer on average to 33... im sure it depends on a lot of different things though

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Emberghost &raquo;</TD></TR><TR><TD CLASS="quote">Haha, thank you, and I dislike tailgaters as well. So gas mileage isn't all RPM haha? Like if I am heavy on the pedal yet stay below 3500 i'm gonna get screwed for gas? Sorry for my ignorance, still learning... </TD></TR></TABLE>

you'll get the best fuel efficiency with sloooow acceleration without reaching high rpms especially with vtec which eats gas.