ITR top speed

Azcheron · Post by **Azcheron** » February 20th, 2004, 6:23 am

does anyone know what the STOCK ITR can pull in terms of top speed? I want a Road&Track kind of answer here. I dont want to see people saying you can do 155 in stock R, cause thats total horse shit. i know GSR is suppose to be able to do 130 on the dot, is this because of HP or a govern or RPM? Im guessing the ITR is probably around the 140's, let me know, but like i said, only if you KNOW, not a guess

Ford Prefect · Post by **Ford Prefect** » February 20th, 2004, 8:19 am

IIRC, George posted a little story over on Honda-Tech a while back (9 months ago?) about actually driving a Type-R at 150+ (I believe it was stock). You might want to look over there or ask George.

BudMan · Post by **BudMan** » February 20th, 2004, 9:39 am

A stock R will hit between 140-150 before redline in 5th. It's not that big of a deal.

Please remember not to try this at home. Very few road courses will ever get you out of 4th gear ~130.

Bbasso · Post by **Bbasso** » February 20th, 2004, 11:16 am

so far the most I have seen is 153 on the speedo, stock.

Azcheron · Post by **Azcheron** » February 20th, 2004, 2:34 pm

well i know the ITR, maxes at 120 in 4th.....

swtxaznrac3r · Post by **swtxaznrac3r** » February 20th, 2004, 10:51 pm

i've taken her to 151 but that was when i first got the car...completely stock

typer rick · Post by **typer rick** » February 20th, 2004, 11:58 pm

On a very cold night I hit about 154 it past all the numbers on the odemeter. NO FUCKING LIE!!!

TypeR0186 · Post by **TypeR0186** » February 21st, 2004, 12:40 am

I did about 145mph awhile back but was still inching. Hey gsr ain't too bad k. My brother has a gsr that max out at 139. So there. plus not all cars are the same.

5-Lug · Post by **5-Lug** » February 21st, 2004, 1:41 am

I vouch for the maxing out at 120 in 4th.

As fat as top speed, everything I read in magazines says 143. I haven't taken it that high so I don't know.

George Knighton · February 21st, 2004, 10:32 am

For whatever it's worth, there are quite a few relatively OEM ITR that will bounce off the limiter in fifth.

Although you'll find a lot of people to contradict this, in my opinion the stock bodywork and suspension is borderline at those speeds, and I really wouldn't recommend it.

It takes so long for a stock ITR to hit the limiter in fifth, honestly, that I can't even think of a road course where it would be possible.

I do happen to know one ITR that will get up around 140 before the braking zone for Turn 1 at Summit Main, however.

98cwitr · Post by **98cwitr** » February 22nd, 2004, 3:50 am

ive had her up to 152 before (slightly downhill).

Bad pic, but @ 149mph

import_trung · Post by **import_trung** » March 7th, 2004, 12:55 pm

i've had 149 out of mine but saying that, slightly bigger rubbers than stock, and the only reason i stopped pushing was cos my mate in the skyline ahead hit 160 and shit himself and slowed down rapidly. Plus car was running slightly off, misfire in cylinder 1.

moruh · Post by **moruh** » March 7th, 2004, 3:52 pm

i've push 220kmh maxs downhill straight road rpm at 7500. and suddenly jagging. no mod. just stock japans version dc2. cut off.

ITR#974 · Post by **ITR#974** » March 7th, 2004, 4:45 pm

I have gotten mine up to 153 with about 700 RPM's to go before redline. And that is pretty much stock. Only thing engine with I have added is AEM CAI and Magnacor 10 mm spark plug wires.

40calpal · Post by **40calpal** » March 7th, 2004, 6:51 pm

This summer i'm looking to take mine to the montana region and maybe max the hell outta mine, keep it at redline for a good while and see what she can do

nightrider · Post by **nightrider** » March 8th, 2004, 6:43 am

i see no point in doing a high speed run reaching high speeds above 130. i have taken my R up to 125 and back off. i don't want to imagine what could happen at those speeds.

mstewar · Post by **mstewar** » March 8th, 2004, 4:08 pm

40calpal wrote:This summer i'm looking to take mine to the montana region and maybe max the hell outta mine, keep it at redline for a good while and see what she can do

why maintain that speed? just asking for trouble IMO, especially in a stock car..

also, isn't it fairly safe to say that the speedo is probably off a bit at that high of a speed?

40calpal · Post by **40calpal** » March 9th, 2004, 2:43 am

yeah i agree maintaining the top end wouldn't be good for the car, i just would like to see if finally max out instead of knowing u had like 700more rpm to go.

I think at low ends its only off by about 1 b/c when i drive by those police speed machines that show ur speed its usually lower by 1 at around 45. I'd say around 130-140 maybe -5mph? does that sound reasonable? unless u have aftermarket gauges that are possibly thread better.

Chris N · Post by **Chris N** » March 9th, 2004, 1:13 pm

You guys do know that the stock tach/speed or inaccurate, right?

I can 'visibly' rev my engine to 9000 - which is obviously wrong since I have the stock ECU which cuts fuel at 8600. Also, vtec kicks in where? 5800rpm stock? Mine appears to be more at 6000-6100.

That is 3.5%-4.5% error in that rpm range.

The speedo is just as inaccurate. 3% or so. Also, tire size will change the speedo as well - 205/50-15 is 1.7% smaller in rolling diameter than the stock tire size (195/55/15), 195/50-15 is 3% smaller. So you're speedo will show an even higher speed if you run a 205/50 or 195/50 tire: add that on to the basic estimate that the speed is already 3% off. You're looking at 5-7% already!

You may be showing 150mph on the stock speedo.... but without GPS or some kind of external measuring device, it's REALLY hard to know how fast you are actually going. Given the excel sheet that Trey (or clayton?) put together (which shows mph per 100 rpm given tire size, gear ratios and FD), we are able to show how fast we *should* be able to go at redline in 5th gear... but I'm not sure any of us really know if we can hit the fuel cut in 5th gear. We might be slightly drag limited at that speed, but who knows for sure?

Erik B · Post by **Erik B** » March 9th, 2004, 1:30 pm

ITR#974 wrote:I have gotten mine up to 153 with about 700 RPM's to go before redline. And that is pretty much stock. Only thing engine with I have added is AEM CAI and Magnacor 10 mm spark plug wires.

Chris I kno what your saying but when a cop radar tells you your doing 153....um your doing 153....right Scott? I kno his car has seen 153....

Chris N · Post by **Chris N** » March 9th, 2004, 2:00 pm

Sure... if radar or GPS tracking says 153mph, I believe it.

But how many people in this thread have actually been clocked at that speed or have a GPS unit that is capable of telling you your instantaeous speed? Not many.

Erik B · Post by **Erik B** » March 9th, 2004, 2:56 pm

Chris N wrote:Not many.

but they are some...we won't go there

Chris N · Post by **Chris N** » March 9th, 2004, 3:41 pm

Erik B wrote:
Chris N wrote:Not many.
but they are some...we won't go there

I just wanted to point out to those that say 'my speed said x mph' that the speedo is off, especially the faster you are going.

ITR640 · Post by **ITR640** » March 9th, 2004, 6:40 pm

So what your saying is that now that I have Falken Azenis 205/50/15 the car will actually be going slower then it says I am? Sounds about right but I'm not going to complain. Also the thing with the Vtec, I played with it the other by accelerating slower through Vtec to hear when it actually kicks in and it kicked in at about 5800 its just not that loud until you hit around 6-6100 rpm. But if listen closly you can hear the Vtec start to kick in.

BudMan · Post by **BudMan** » March 9th, 2004, 6:49 pm

In the end - what difference does it make whether it is 147, 149, 153, etc...it's all damn fast & faster than you'll ever get on a track unless of course Germany is in your near future

The fact that the stock R will hit 120+ knocks it over sooooo many cars. The fact that it can do that at the end of many on ramps is what scares the hell out of me for inexperienced drivers.