revving - how high should I go
Thread Starter
Joined: Jan 2005
Posts: 49
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From: Ravenna, OH, unites states
revving - how high should I go
Ok, I am in the midst of buying a block that is bored to OS CTR's and everything so that will be my block set up with a micropolished crank and everything will be balanced, arp studs and bolts.
my head will have LS Race cams from exospeed and ISKY race valvetrain set up with .500 lift. I am also going to clay my motor. and have a bored pnp i/m bored t/b.
I want to get ideas of a safe rev when dragging.. im thinking around 9k ?
my head will have LS Race cams from exospeed and ISKY race valvetrain set up with .500 lift. I am also going to clay my motor. and have a bored pnp i/m bored t/b.
I want to get ideas of a safe rev when dragging.. im thinking around 9k ?
Joined: Oct 2004
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From: Funk, Squad, USA
Re: revving - how high should I go (SuedeB)
9000 sounds nice...
I read somewhere that when you rev to 9000 it puts about 12x more stress on the engine as if you were to rev to 8000.
Keep that in mind as you spin that **** to 9k+ :D
I read somewhere that when you rev to 9000 it puts about 12x more stress on the engine as if you were to rev to 8000.
Keep that in mind as you spin that **** to 9k+ :D
Honda-Tech Member
Joined: Apr 2004
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From: orange, ca., usa
Re: revving - how high should I go (SuedeB)
dyno it and see where the power falls off, then go from there. tuning on a high rpm motor is key!!! why rev to 9000 when it only makes power to 8700? 
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Joined: Nov 2004
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From: Tecks-us
Re: revving - how high should I go (MITSUBA)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kingkash420 »</TD></TR><TR><TD CLASS="quote">damn 2300 to 7200 is a pretty wide powerband!</TD></TR></TABLE>
i think they just mean it doesn't make anything good til 2300 and it doesn't make anything good after 7200. powerband is probably 4000-7000ish. a little higher end than stock, if it really does go that high, but those "LS Race" cams sound tiny. shoot, my 404's in a STOCK head casting and stock block the torque doesn't fall off until practically 6000rpm, so the real power of the cams will be maybe 5500 to at least 7500, and 8000 will probably be a good shift point once my block is ready for it. i plan on some mild work to the head and a few minor but important block upgrades to get it to 8000, and then get a cheap $20 chip to raise the redline to 8000 and retune so the chip fuel curve doesn't F* me up.
i think they just mean it doesn't make anything good til 2300 and it doesn't make anything good after 7200. powerband is probably 4000-7000ish. a little higher end than stock, if it really does go that high, but those "LS Race" cams sound tiny. shoot, my 404's in a STOCK head casting and stock block the torque doesn't fall off until practically 6000rpm, so the real power of the cams will be maybe 5500 to at least 7500, and 8000 will probably be a good shift point once my block is ready for it. i plan on some mild work to the head and a few minor but important block upgrades to get it to 8000, and then get a cheap $20 chip to raise the redline to 8000 and retune so the chip fuel curve doesn't F* me up.
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Thread Starter
Joined: Jan 2005
Posts: 49
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From: Ravenna, OH, unites states
the cams are re-grinds.
specs as follows.
Wild street/ race cam
* rough idle
* powerband: 2500 to 7200 rpm
* if you are worried about gas mileage…
this isnt for you.
* HP increase with bolt ons- up to 20hp
* Requires valvetrain upgrade
* Highly recommend with headwork
specs as follows.
Wild street/ race cam
* rough idle
* powerband: 2500 to 7200 rpm
* if you are worried about gas mileage…
this isnt for you.
* HP increase with bolt ons- up to 20hp
* Requires valvetrain upgrade
* Highly recommend with headwork
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