ive got a stock '98 EX civic auto transmission. Question is, my engine tops out at 110mph in 4th gear at about 4500rpms. Im just wondering if the engine wont go above 4500rpm in 4th gear, because it isnt capable of doing so, or if it is capable, why it didnt, like perhaps I didnt have enough oil pressure for it to engage vtec or something (no.. i dont really have any idea what im saying right now, just presenting an idea, which leads to a new question).

Will the engine go above 5000rpms (or when it engages vtec), if it cannot engage vtec due to certain circumstances (engine temp, oil pressure, etc.)?

i gotta learn more about engines in general and vtec.. it makes things complicated and makes me feel dumb

 

i think if u put it in d3 itll prob go to higher rpms. not sure.

 

First, what are you doing at 110 in your civic?

Second, the reason you can't go faster is because your computer tells the engine not to. It's called a speed governor.

 

D3, hold it to the floor, should see 125 mph given enough room.


But I do not suggest the high speed events. I've seen 145-150 mph in my car. Bottom out the suspension at 120+ mph removes 3-5 years off your lifespan IF you keep it straight. Don't keep it straight, you got about 2-3 seconds till your DOA.

Save the speed for the tracks.

 

Civics and Integras have no speed limiter on US cars, he just doesn't ahve the ***** to overcome the wind resistance.

Pay attention to Mista Bones advice.

 

Not true about the civics not having a govener....i cant get pass 120mph cuz of that...i do that on the autobahn alot...i own a 96 us spec civic.....

 

um.. trying to keep up with some HT peeps crusing at 130+.
and how exactly does the speed governor work, because my car never went above 4000something rpms in 4th gear, and was going 110. i managed to hit like 115 for a short length of time while going down an incline.

 

I have a 97 EX...same car but a 5-speed. Here's my take: don't EVER drive above 75mph with the suspension/tires completely stock. It doesn't come with a rear sway bar so it is *extremely* unstable at high speeds.

If you get 19mm rear Suspension Techniques or Neuspeed swaybars (with everything else stock), you can drive 80mph constantly and do 90 for short bursts if you are very very careful. If your suspension bottoms out on a bump, your car will still stay in control and you won't die. The ITR or Comptech rear swaybars are 22mm which is way too thick if used on an otherwise stock suspension at high speeds.

To go anything above 100mph, get some H-rated or better (130+mph) tires (the stockers are only S-rated so they can explode and you die if you hit a pothole) and get the car lowered .75"-1.5" on some performance springs and shocks for better stability. This setup of course includes swaybars mentioned above.


[Modified by GB, 11:13 PM 10/23/2002]

 

I agree with Mista Bone.

 

BTW stock 92-95 DX speedlimiter is 116 mph, 118 mph indicated.

Ive been lucky at running high speed tests. The one that taught me.....

Running on 215/50/13 BFG R1's and in 5th gear......at about 128-130 mph with the old 1.5L motor.......hit a interstate overpass, car bottomed out, then moved a FULL lane with no steering input. I was in the high speed lane and car went to the right. If car would have went towards the left, I'd hit the wall and would not be here today. I didn't lift or brake, I knew that would equal instant DEATH.

I got lucky, DAMN LUCKY! I've made 2 high speed passes in the past 4-5 years, conditions were right, one was even police clocked/supervised.

I've was lucky, or was it some driving skill?

Not skills, just DAMN LUCKY!

Think about it, I think about my 13 yo son. What would HE do if I screwed up?

Yes I would love to rent out the old TRC center in Ohio, which I think Honda now owns.


[Modified by Mista Bone, 7:29 AM 10/24/2002]

 

It really sounds like you just do not have enough power to overcome the wind resitace. Even the progress civic, with all its mods will only reach a certain speed given the power it has.

It is basic physics principles...one the resitance is equal to your power, you will stop accelerating....