Top speed question...

[Anniversary-Ed.]

I have a stock automatic 1993 Honda accord 10th anniversary ed. running an f22a1 engine. I see video of people hit like 125 in them, but mine after like 102mph. starts to accelerate very slowly, even with my pedal to the floor. One night there was me and my friend (combined weight of 300 lbs) in my car. i was on the highway going fast and i hit 108mph on the highway and when i was going that fast it seemed like it was a chore for my car to go that fast. I use gum out every so often to help keep the inside of my engine clean and i also keep the air filter and throttle body clean. Anyone have any idea that might help my top end acceleration without using engine parts?

[N9netwoAccord]

nope, you're pretty much SOL in simple terms

[JoshM]

Anyone have any idea that might help my top end acceleration without using engine parts?

[Potatoswatter]

Check your tire condition and pressure, and alignment maybe. Definitely sounds like there's something wrong. Have fun experimenting to figure it out!

[Losiracer2]

you prob. need a tune up. Your car is old and the parts are more than likely worn out/not at their best condition. So you prob. don't have as much power as you could have.

[randomcustoms]

i agree on the tune up cause mines a tenth and pretty much bone stock, and she does lag on top end but she makes it to the speed limiter with no probs and runs there all day long of course mines had full regular maintenance schedule its whole 102,000 mile life, speed limiter is 112 113 somewhere in that area

[Anniversary-Ed.]

i agree on the tune up cause mines a tenth and pretty much bone stock, and she does lag on top end but she makes it to the speed limiter with no probs and runs there all day long of course mines had full regular maintenance schedule its whole 102,000 mile life, speed limiter is 112 113 somewhere in that area

The speed limiter is that low? I thought the top speed was like 120-125ish. Even at 108 i was only at like 4000rpms and my car redlines at 6200rpms. And the rpms move up slowly as speed increases.

Is your car auto or did you have it converted?

[JoshM]

There is a speed limiter programmed in the ecu, its there because LX/DX's didn't come with tires that were high speed rated. EX Accords came with high speed rated tires, so they don't have speed limiters. So I would suggest you upgrade the tires at least before switching ECU's.

The ecu's you can use are from either a 90-93 Accord EX, or a 92-95 Prelude S (P12). The prelude ecu is good for an extra 10hp in a LX/DX

[randomcustoms]

i learn somethin new every day, i have been lookin for a p12 for the ten horses but i did not know about the speed limiter

[randomcustoms]

Is your car auto or did you have it converted?

ya mines is an auto

[Reignstarz]

Dunno why you want to go that fast. I hit 115 in my 90

Nearly shit my pants.

[project93]

The best thing is for you to due a tuneup. new plugs, wires, and air cleaner. a new timing belt could prolly help too. in all honesty if you must go over 100mph you should upgrade your tires, suspension, and brakes to help you control that speed. these cars were not built to be race cars. they were designed to transport families efficiantly. Do what you would like however just don't say nobody told you so...

[Reignstarz]

The best thing is for you to due a tuneup. new plugs, wires, and air cleaner. a new timing belt could prolly help too. in all honesty if you must go over 100mph you should upgrade your tires, suspension, and brakes to help you control that speed. these cars were not built to be race cars. they were designed to transport families efficiantly. Do what you would like however just don't say nobody told you so...

I so agree with you man, I hit 115 in my car and like I said I would never want to go that fast again lol. I mean I go 90 maybe 100 sometimes. but never that fast my tires shake and stuff I need to get them balanced. Control might be going bad to so like I hesitate to go that fast.

Like he said be careful man.

[Potatoswatter]

Lol you guys need to grow some balls. It's not gonna fall apart at 110 mph. I ruined the tires my car came with from going that fast, and the tire store happily sold me higher-rated tires when I explained the situation. But the OEM tires are irrelevant, since nobody's using them any more, the speed limiter doesn't come into play until you get near the end of the speedometer (or past, I wouldn't know), and paying someone to change all the fluids is just throwing money away. Maybe if you've missed a couple oil changes… I wouldn't know.

My money is on his tires being underinflated or winter tread.

[Potatoswatter]

Oh, the road surface plays a role too. Maybe try a different highway. So long as it's far, far from any population and 2 lanes per way divided.