shotoutacc0rd

As far as horsepower and RPMs goes. At what point should I absolutely change my rods out, and my rod bolts? What about the rest of the stuff?

hardcore97

you can go to 350 whp before i would say you want to start building the bottom end. if you are on a stock valvetrain there is no need to rev higher unless you want to have problems

justYncredible

iTrader: (1)

It most cases it can do 300hp just fine but in others it doesn't matter. Meaning it'll blow at any sign of boost pressure.

TravisBiggie

I put down 362whp on a stock ls head (eagle rods, npr pistons) b18b1 block

could it of been done on a stock block? I think so.

shotoutacc0rd

I would not like to have problems but I would want to rev high. Its the main reason I want a b16.

how many rpms w/ reputable aftermarket valve train and upgraded block?

boostlsveg

iTrader: (12)

with atleast springs and retainers and a good damper pulley I would feel comfortable to atleast 9500. With the bottom end done, atleast rod bolts, even higher.

hardcore97

revving to the moon doesnt help if it doesnt make power that high.

wantboost

iTrader: (2)

And you can't rev to the moon on a stock ls bottom end, the rod bolts will kill themselves

shotoutacc0rd

I could get the powerband up there, we did it with my dad's dohc twin cam Toyota.

for a b16 I think 10,000 would be the limit id want on the hardware but 9,000-9,200 would be what id actually use.

you guys think a b18b could do that too with the upgraded hardware we talked about?

grumblemarc

iTrader: (4)

Always talking about a Toyota and has absolutely no idea why he wants to rev to 10k. Another all-talk-no-action thread by the OP. I guarantee you this thread will drag on for 4-5 pages with OP just playing the "what if" and "wouldn't it be cool" games.

shotoutacc0rd

You're mad that Toyotas are better. Why wouldn't I want it to rev high?

p.s. Loser I'm getting my parts tomorrow!

grumblemarc

iTrader: (4)

Still talking.

boostlsveg

iTrader: (12)

I just want to clarify that in my first post I was speaking on a b16. Didn't even c that ls was involved lol. That said, on an ls with a vtec head with springs, retainers, n rod bolts minimum u could rev to 9k without issue. IF there is a need to, like mentioned above.

Dark_Teg

RPM's amplify problems and break things. The closer I can stay to the stock redline the better.

DA-NINE

Take all of your parts in their original configuration find out what the Rev limit is for each. Whichever is lowest use. Anything above 7200 and you're pushing non vtec springs and rod bolts past the comfort zone.

Or not care set it to 9200 of the b16 and get a video of a rev limiter themed burnout party and be sure to post video...


.....tell the camera man not to stand directly in front of the car either.



No body else mentioned that the ls water pump starts to cavitation just above the factory rev limiter.

turbohatch96y7

iTrader: (15)

Don't feed the trollllllllllllll!

Legit troll fyi

wantboost

iTrader: (2)

Most of Toyotas motors were designed and at least partially built by Yamaha. guess what Yamaha does mostly? builds motors that rev to 17,000rpm... Honda does too... but there's a reason neither companies automotive engines spin that fast.

there's no reason

and most people that have a damn clue never turn the motors that high, unless they have a reason, like drag racing trap speeds/4th gear rpm. and these people normally have motors so well built they would survive a nuclear war, not to mention if one does break they have spares.

the only people who do it on mostly stock motors in street cars are the fanboys who have 0 clue about anything and think it sounds cool and gives them street cred when they say "i rev my stock b16 to 10,000." When it's quite the opposite

SiRCiviC94

^this guys been around the block lol

DDTECH

typically speaking.

I've personally done Stock GSR with a nice turbo kit to 380-400whp without a problem. Daily too.

LS's i've done upper 3's, i've had buddies make well over 450whp on stock ls's with rod bolts and head studs. Tuner is important, health of the motor is as well, dont get so caught up in numbers but rather how it performs on the street and track, may only make 300whp, but thats enough to light up Z06's, LS3's and a good amount of "street cars"

wantboost

iTrader: (2)

Yea also on the street you'd never have the opportunity to legally turn the motor to 10,000. Unless you just enjoy getting pulled over and forking money over to your local/state government and paying higher insurance premiums.

most of street driving is low load, low rpm, so having a motor that spins that high even if it still makes power is useless. The other thing is if you have a motor that's still making power over 9,000 then there's a good chance it also doesn't have any ***** below 5,000-6,000rpm... not good for a street car because again during normal street driving, assuming you don't drive like an immature ricer fanboy, you'll never have the time or space or reason to turn the motor much over 5,000-5,500 rpm. so if you don't start making power till that rpm point or later then the car will be a total dog on the street.. you'd end up getting passed by lower power, smaller turbo cars and even NA cars that have better response and lots of midrange torque.

the practical power limit for a fwd street car on proper suspension and decent tires (something I rarely see in the Honda camp) is roughly 350whp before you start having traction issues.

So again, why do you need to have a street motor that turns 10,000rpm? it's utterly pointless unless you're one of those "street cred" it sounds cooler than 8,500rpm people.

if you want a high rpm street motor that's actually useful then buy a sport bike.

m4xwellmurd3r

Yeah my only reasoning for wanting to raise my ls limit from 7200 to 8500 is because I have a head and cams that support power that high, giving me good powrr from 4000-8000rpm, and because I want the extra rpms for gearing purposes.

Im only shooting for 350-380hp. Im probably going to run a slightly smaller turbo (gtx2860 vs 2867) stock intake, and some boost control tapering to level out the horsepower and taper off the torque.

But 10k is just ludicrious for a street car. Would not want

Freemananana

iTrader: (3)

Stick to 300 wHP and 8,200 RPM on your B16A.

grumblemarc

iTrader: (4)

Of which the OP has neither.

Freemananana

iTrader: (3)

Oh man, I'm sorry. I just read this thread and realized the OP is the guy talking about Toyotas. /facepalm

shotoutacc0rd

My Toyota isn't even a street engine, still fun on the streets though. Its called down shifting guys.

bought it from some Japanese race team thru an importer, it was done by Tachi Oiwa. Except I dont want to buy a Spoon engine this time, wood rather learn to do this stuff myself.

and thanks guy who explained that the water pump is a POS and needs to be changed to accommodate higher RPMs