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Old 04-08-2004, 08:15 PM   #1
Alpha_32
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Default EJ25's REAL rev limit?

i was just wondering how high a stock ej25 could rev to safely
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Old 04-08-2004, 08:26 PM   #2
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it safely revs to the redline, which is 6250.....
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Old 04-08-2004, 08:27 PM   #3
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if you mean to valve float, its like 7000rpm, but good luck doing that with the rev limiter.

-justin
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Old 04-08-2004, 08:40 PM   #4
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no chance of getting to 8?
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Old 04-08-2004, 08:56 PM   #5
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unless you put a b18 motor in it, no
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Old 04-08-2004, 08:58 PM   #6
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Quote:
Originally posted by Alpha_32
no chance of getting to 8?
WHAT? why do you want it that high? Well, only if you had upgraded cams/valves/heads would you want to rev that high.

In stock form, the 2.5 runs out of breath around 6k rpms.

-justin
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Old 04-08-2004, 09:20 PM   #7
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Quote:
Originally posted by 2pt5RS
it safely revs to the redline, which is 6250.....
mine will go past that
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Old 04-08-2004, 09:36 PM   #8
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Quote:
Originally posted by b_tapper
mine will go past that
mine goes to all of 4500......gotta break in the new engine
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Old 04-08-2004, 10:45 PM   #9
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you will not be making much power up past 6k, so theres really no point. You could rev to 12k if you wanted to but it would all be in vain unless you can continue to make power

Think outside of the box and shift.
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Old 04-08-2004, 11:16 PM   #10
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8k? hahahaha you ricer
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Old 04-09-2004, 03:37 AM   #11
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I rev to 8k...and its a ton of fun!

If the redline were raised you would have no benefits really, your motor would run out of breath due to the stock grind of the cam, and you would soon get valve float.

As Blindeye said, you would need headwork, very agressive cams and new vale springs to rev that high, oh, and engine management (piggyback) to actually raise the redline.

B_tapper- What are you revving to latley?

Later!

Dan
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Old 04-09-2004, 07:27 AM   #12
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Quote:
Originally posted by 2pt5RS
unless you put a b18 motor in it, no
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Old 04-09-2004, 11:00 AM   #13
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Not only does the flow of the stock heads become an issue at 8000 rpm, but the intake manifold is a restriction. So, even with fully worked heads, you really see a major drop of in power around 7500. This is why Dan and his brother are working on a custom manifold, and others are working on ITB solutions for our cars.

And as has already been said, if we are talking totally stock heads, the valvetrain cannot handle even 7000rpm. Even at 7000rpm you will get float...
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Old 04-09-2004, 09:52 PM   #14
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Quote:
Originally posted by b_tapper
mine will go past that
Yeah...my tach says I have done 6500 easy.

BTW...Dcoty (IIRC) is working on a fully built N/A engine with a higher rev line. Last time I heard, he was having problems with the Enging managment switching off the stock limiter to the new one, but that was before he went stand alone managment.
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Old 04-09-2004, 10:43 PM   #15
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ok, but 7 is do-able?

it's just cool watching the needle go way past the redline
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Old 04-09-2004, 10:48 PM   #16
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i wouldnt do it the engine has a redline for a reason
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Old 04-09-2004, 10:59 PM   #17
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Quote:
Originally posted by Alpha_32
ok, but 7 is do-able?

it's just cool watching the needle go way past the redline
Is this really your reason?!?!

Why not just buy a tach and set the redline really low? Then you can watch it go way way past the redline, and it won't potentially cost you major repairs later.
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Old 04-09-2004, 11:05 PM   #18
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well then there's no point in doing that because if you have a redline at like 5 or 4.5 then ur car sux

but reving to 7 + going past redline = cool;
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Old 04-09-2004, 11:14 PM   #19
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wow you know jack about cars

there are cars that rev to those and make a crap load more power than you
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Old 04-09-2004, 11:25 PM   #20
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jason I'd just stop posting on this thread before I have to start denying that I know you in real life.
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Old 04-10-2004, 12:10 AM   #21
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a Bently Azure redlines at 4500, it's not very cool at all
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Old 04-10-2004, 12:11 AM   #22
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Quote:
Originally posted by Defiantguy
jason I'd just stop posting on this thread before I have to start denying that I know you in real life.
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Old 04-10-2004, 12:21 AM   #23
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Quote:
Originally posted by xxtwowheelfiendxx
Think outside of the box and shift.

That is the funniest thing I've heard in a long time. I think it's my new sig.
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Old 04-10-2004, 07:49 AM   #24
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Excuse me sir...but the hOnduh forums went that way


------------------------>ricer
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Old 04-10-2004, 12:05 PM   #25
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ok, so 7 is safe?
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