Hi guys..

Mt Teg is Jdm and came with 38000 Kms on the tachometer. I'm assuming that is has way more milage than that but not def sure how much..
I'm running with kenji's p28 ecu which has a rev-limiter up to 9500. My problem is that i'm afraid that i'm risking the engine by revving that high. I try not to rev it over 9000 but occasionally i hear the rev limit,by mistake.(i would love to but afraid).
So.. to be safe is to spend cash and change the valve springs and retainers but it's gonna cost me a bit..

Do you guys think i'm risking that much? Or just change the chip and be 100% safe?

Thanks in advance guys..

 

You'll make matters far worse should you OVER-rev. If i were you i would fix your issue immediately. The last thing you want is the capability to rev that high unless your built appropriately!

Edit: so to clarify what part of your question i am trying to answer i....

A. Think you should never rev to 9500 on a stock motor!

B. Should you want to, build accordingly or you'll find yourself doing headwork sooner then you wish!

 

what are your mods right now?

 

Stock valve train? Use stock rev limiter (or close to it).

That's my vote.

https://honda-tech.com/zerothread?id=901524

 

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

That's my vote.

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

Yup....that makes 2 of us!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C-Rsi &raquo;</TD></TR><TR><TD CLASS="quote">

Yup....that makes 2 of us!</TD></TR></TABLE>

That makes 3 of us.


And remember that the revlimiter can be mechanically overridden, it's not a total failsafe, it's a warning.

 

for now, you can start by not going so high. there's no need to rev so high on the streets. change out the rev limiter or get your motor built properly.

 

I got excited and accidently rev'd up to 8200 yesterday(showing off is stupid) and I was scared but 9500?? dang that makes me feel alot better.

 

dude, i have jun valve springs on my jun 3 cams and i try avoid going to 9500rpm...i usually shift at 9000 to be safe

i suggest you use a different rev limit

 

Wow.. i didn't imagine that it's that dangerous!! so my solution is to re-do my rev-limiter back to stock..

Thanks in advance.. For the specs of the car,see sig..

 

I've been away from the board for a while, but why would you rev your motor that high anyway? On a stock motor you're not making more power at 9k+. You're just putting more wear and tear on the motor. Useless IMO..

 

So when you shift you stay high in the powerband.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jdm 98spec R &raquo;</TD></TR><TR><TD CLASS="quote">
I'm running with kenji's p28 ecu which has a rev-limiter up to 9500.</TD></TR></TABLE>

Kenji's P28 ecu has a revlimiter set to 9100 RPM , the tach reads 9500 RPM.

Still in danger ??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Euro98ITR &raquo;</TD></TR><TR><TD CLASS="quote">

Kenji's P28 ecu has a revlimiter set to 9100 RPM , the tach reads 9500 RPM.

Still in danger ??</TD></TR></TABLE>

is the valve springs / retainer in JDM motor same as USDM ones?

if so.. i dont think it's safe still..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00MRSi &raquo;</TD></TR><TR><TD CLASS="quote">I've been away from the board for a while, but why would you rev your motor that high anyway? On a stock motor you're not making more power at 9k+. You're just putting more wear and tear on the motor. Useless IMO..</TD></TR></TABLE>

Simple, he wants longer rods.....

Just because the rev limiter kicks in a a set rpm the engine will still climb well over it..
With an 8500 rpm limit our rally car has seen 9100 rpm several times and not from a down hill over speed just a hot shift . So with that mind set it at 9500 rpm you could spin up to
10,100 rpm... Not for long...
We have a Mugen ECU that will be going up for sale soon just for that reason..
That bitch is set for 9500...

 

Upgrading the valve train is the most logical thing to do if you rev that high on a continous basis. Stock valve train is made to handle revs of up to 8400 RPM, otherwise as has been stated, switch back to stock limiter.

 

i have an ITR with a JRSC and my rev limiter is set to 9200, lol, on stock internals

and im too afraid to rev it past like 8800...but oh well, let the fun begin!

 

guys, valvesprings and retainers are good for you. not expensive or hard to install.
first of all, the fear is in going to 9K in 3rd and hitting 2nd... do the math... the fear also is overreving without load on the spring... with the motor under load it is not a big deal to take a stock ITR bottom or top with a mild cam to 8800 or so... but why not have the insurance? you can also cause issues with more compression with a fuel cut OEM style rev limiter. why not get a coil that you can set the pull on the spark so you wont have the tendancy to go SUPER lean when you hit it... in fact, hitting it wouldnt be a big deal as much any more...