johnclaunch

Is raising the rev limit to 7700 in an A3 safe? Anyone had any issues? Hondata claims it is at your own risk (I know it is a legal disclaimer), but they feel it is worth mentioning because it could damage the engine. Anyone know what the max rpm possible on an A3 before danger? I know someone that blew up an A3 when they set the rev limit to 8500, but what about the 7700? Thanks.

WhiteOnRice

Why?

johnclaunch

Because the Hondata A3 Reflash raises the redline to 7700.

Aco512

then shifting at 7600-7700 should be safe
hondata raised my rev from 8000 to 8600 and i've been shifting to 8600 on occasion for 2 years now
no problems

i was concerned about using the new redline also when i first got the k-pro put in so your not the only one

rollercosta123

just get some titanium retainers on your head and it should keep things together

madcityEP

it needs to be a 7700, our cars just start to make good power right before you need to shift. go for it, if you blow it up.... hello a2

whiteDCfiver

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nighthawkep3 &raquo;</TD></TR><TR><TD CLASS="quote">it needs to be a 7700, our cars just start to make good power right before you need to shift. go for it, if you blow it up.... hello a2</TD></TR></TABLE>

Actually the a3 loses peak power after 6800. 7700 imo is not smart. 7200 you should be safe. Only upside of raising it that high is that your higher in the rpm range in the next gear once you do shift.

thechromecoyote

2 questions...

Is there any way to tell if your ECU has been flashed before?

I bought my EP3 pre-owned from a dealership, but Im pretty sure my rev limiter is set as higher than 7000, as Ive gone just over a couple times now and not seen any ill effect.

If I wanted to experiment with checking where it is manually, is there a safe way to hit it without long term damage being done to the engine?

whiteDCfiver

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thechromecoyote &raquo;</TD></TR><TR><TD CLASS="quote">2 questions...

If I wanted to experiment with checking where it is manually, is there a safe way to hit it without long term damage being done to the engine?</TD></TR></TABLE>

Just rev till your limiter kicks in.

ebizzle361

i have an 04 ep3 and mine is set at 7700 with kpro and i love it .
on the dyno ponies were still rising

ebizzle361

just revving wont show you because theres is another limiter for neutral. for me anyway its like 5600 or 5700 or close.

thechromecoyote

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ebizzle361 &raquo;</TD></TR><TR><TD CLASS="quote"> just revving wont show you because theres is another limiter for neutral. for me anyway its like 5600 or 5700 or close.</TD></TR></TABLE>

so stock A3 should hit the rev limiter at around 5700 when its in gear? that seems really low. hrm.

heh as far as experimentation, I did it tonight. Def, mid to upper 7000's before the rev limiter scorched my wax wings so I guess this means the previous owner did something funky with the ECU huh?

half wonder if I should be thankful or fearful.

BarracksSi

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thechromecoyote &raquo;</TD></TR><TR><TD CLASS="quote">so stock A3 should hit the rev limiter at around 5700 when its in gear? that seems really low. hrm.</TD></TR></TABLE>

Only from '03 on up (the '02's don't have it) when you're sitting still, clutch in, and -- maybe -- the tranny in gear. It's a launch rev control, basically. I'm not positive on the details since my '02 EP3 doesn't have it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">heh as far as experimentation, I did it tonight. Def, mid to upper 7000's before the rev limiter scorched my wax wings so I guess this means the previous owner did something funky with the ECU huh?

half wonder if I should be thankful or fearful.</TD></TR></TABLE>

Thankful or fearful? Be both. Do a visual check on the ECU to see if you can tell anything different -- like, if there's a USB port or something like that. Take it to a dyno to see what turns up (the tach can be a little off, but the dyno rev counter doesn't lie).

hwany00007

yup it's safe

joey funk

good topic i have been wondering also. so can i go somewhere to get mine changed, or do i have to spend the grand on a k-pro

WyldRice

after a month of getting used to the k20a3...
i can feel the power start to taper off just before my stock rev limiter (seems to be around 7400?) and i have the stock ecu.
i'm Looking to get K-pro, but i will need some more mods before i crank up the limiter any higher.

i only have the 2 most basic engine mods, cold air injection (injen) and custom 2+1/2" exhaust w/carbon fiber muffler...

with normal driving (between 900-3900 rpm) it runs very smoooooth, BUT sounds like a gurgling, underpowered, peice of crap...
IT has VIRTUALY NO Power in this RANGE! i hate when people pass me!

Great on Gas though!
-------------
when i get over 4k rpm it "Purrrrrrrrrrrrrs"....hit the Gas and it Growls for a second then opens up, "Brapppp!!!!!" and Quickly gets up to rev limiter...
"WoP! WoP! Wop!"
Example... me taking off... "purrrRRRR!, BRaPPP!!, Wop! Wop!, BRRRappp!, Wop Wop Wop!, Br...."
0-100 in about 7 seconds!
(ok, maybe NOT! but it feels and Sounds faster than hell!)
and i haven't been hitting the rev limiter as much, now that i can feel when its about to let go...
and i can get a small "BBBRRR... POP!"shift "BrrrrRRR!" out of the sound if i hit it just as its kicking in!

it sounds more like a nice Harley then a car, so i've been driving it normally (just cruizin') in the high rev range. (4000-7300 rpm)

as far as "is it safe for my engine?"
-YES- ...ok, maybe not for any small animals that run out in front of you...
------and my milage went from 28mpg, down to about 25mpg...

but Reliable? Sure!
...until you start modding the hell out of it... and are reving up around 8400-8600!!!

Honda may have pissed alot of people off with these engines...
But from what I'VE SEEN, HEARD, (And experience with all my 25 years of Honda's) THEY CAN EASILY TAKE 7700RPM!

...thats why you see so many still on the road -after hundreds of thousands of miles!- i could get 180K-230K Miles out of my old civics before i sold them!
oh, and YES, i Drive them HARD (Delivered Pizzas '89-'98!)

<U>NEXT 4 ME- first a superchager, then K-pro w/dyno tuning! </U>

thechromecoyote

I have tons of fun with my a3 even with only an Intake and Larger b-pipe. I dont think Ill ever turbo the car, but I do intend to do what I can with the engine before a full switch to the a2 is needed.

Having never owned a vtec car before, this car is hella fast to me; but Ive driven the 07 Si and an old modified crx, so I know where my 'lil a3 falls short and the things Id like to do.

Agreed with "02siep3" though, it really pisses me off when inferior cars rush out of the starting gate at higher speeds than we can. For a car with soo much "low end torque" I really dont feel it until the mid range.

whiteDCfiver

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thechromecoyote &raquo;</TD></TR><TR><TD CLASS="quote">
Agreed with "02siep3" though, it really pisses me off when inferior cars rush out of the starting gate at higher speeds than we can. For a car with soo much "low end torque" I really dont feel it until the mid range.</TD></TR></TABLE>

Keep in mind the somewhat heavy weight for a car like this.

I agree with you also though. It may fall short, but the A3 is still a great lil motor to have fun with. I loved my base rsx, and it was more fun to drive than the tc im currently driving.

T_Virus

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ebizzle361 &raquo;</TD></TR><TR><TD CLASS="quote"> just revving wont show you because theres is another limiter for neutral. for me anyway its like 5600 or 5700 or close.</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thechromecoyote &raquo;</TD></TR><TR><TD CLASS="quote">

so stock A3 should hit the rev limiter at around 5700 when its in gear? that seems really low. hrm.

heh as far as experimentation, I did it tonight. Def, mid to upper 7000's before the rev limiter scorched my wax wings so I guess this means the previous owner did something funky with the ECU huh?

half wonder if I should be thankful or fearful.</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BarracksSi &raquo;</TD></TR><TR><TD CLASS="quote">

Only from '03 on up (the '02's don't have it) when you're sitting still, clutch in, and -- maybe -- the tranny in gear. It's a launch rev control, basically. I'm not positive on the details since my '02 EP3 doesn't have it.

Thankful or fearful? Be both. Do a visual check on the ECU to see if you can tell anything different -- like, if there's a USB port or something like that. Take it to a dyno to see what turns up (the tach can be a little off, but the dyno rev counter doesn't lie).</TD></TR></TABLE>

Don't know about that..I have a 03 and I can still rev to 7000 in gear or in neutral(our tachs are a little off so I do believe I'm @ 6800rpm)

gurlracer_camille

it might be safe but its not smart to shift that high, an a3 doesnt make power to 7700 i dont think it makes power past 7000, if it was me i would just shift at 7200-7500, i dynoed my k20a2 it made power till 7500rpm, i just **** at 8, no point of going any further if u dont make power, u just gonna hurt ur motor

WyldRice

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gurlracer_camille &raquo;</TD></TR><TR><TD CLASS="quote">...my k20a2 it made power till 7500rpm, i just **** at 8...</TD></TR></TABLE>
OK, then why dont you shift (or **** as u put it ) at 7500!- WHERE its supposed to be shifted?

or as you said,
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gurlracer_camille &raquo;</TD></TR><TR><TD CLASS="quote">...no point of going any further if u dont make power, u just gonna hurt ur motor</TD></TR></TABLE>
BUT, if it doesn't hurt your engine, like many here testify to,
you will be able to shift into the next gear at a higher horsepower level!
(and, in theory, reduce lap times, 1/4 mile times, 0-60, taking the checkered flag, Etc.!)


when i get mine dyno'd i'll know exactly when to shift...
i think i will set my rev limiter about 100rpm passed my Peak HP.
Hope this helps, its just my 2 cents...

gurlracer_camille

rule of thumb is shift 500rpm after the point where ur car stops making power, like if it stopped at 6500 shift at 7000. on the dyno my car read 7500 but on my tach it reads 8000 its off by 500rpm, so iam shifting at the right point.

gurlracer_camille

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 02SiEp3 &raquo;</TD></TR><TR><TD CLASS="quote">

...you will be able to shift into the next gear at a higher horsepower level...

</TD></TR></TABLE>

what u said is true... that is the advantage of shifting at a higher rpm... but if u shift at too high of an rpm u might be losing horsepower as u go higher, ive seen a lot of dyno sheets where there horsepower starts to drop after they stop making power, but im paranoid so i just shift where i'm suppose to.

DiMpL3s

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by T_Virus &raquo;</TD></TR><TR><TD CLASS="quote">

Don't know about that..I have a 03 and I can still rev to 7000 in gear or in neutral(our tachs are a little off so I do believe I'm @ 6800rpm)</TD></TR></TABLE>

yes the 02-03 do not have that stupid stand still rev limiter.... the 04-05 do...

and on a diffrent note is it true that u can smog a car with the re-flash????

TTT

DiMpL3s

up or info

TTT