B16, 84mm, sleeved/fully built. STOCK HEAD, gt35r turbo.....How high do you guys think i can rev safely?

 

9000-9500
B-series FTW!!!!

 

stock head = 8200revs ,going past is pointless and dangerous

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garageEF &raquo;</TD></TR><TR><TD CLASS="quote">9000-9500
B-series FTW!!!!</TD></TR></TABLE>

psshh, go and try it buddy

 

B16a can handle high rpms no sweat. As long as your setup is tuned properly 9000-9500 is easy, gt35r is gonna want some revs with that setup.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">stock head = 8200revs ,going past is pointless and dangerous</TD></TR></TABLE>

speaker knows his stuff, try revving to 9500 with old stock b16 valvetrain.

 

I have portflow springs and supertech valves, ive seen 9500 before

 

i thought the 2nd gen b16s could go to 8500 RPMS

 

Just keep it stock. If the engine's valvetrain is stock, why would you go any higher? It's not like it's making power past 8200 anyway...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tippyman &raquo;</TD></TR><TR><TD CLASS="quote">Just keep it stock. If the engine's valvetrain is stock, why would you go any higher? It's not like it's making power past 8200 anyway...</TD></TR></TABLE>

r3vv1/\/G mad h1gh is l33t!!!

Who cares that you get peak power output at 7800 rpms? Just abuse the **** out of that engine.

 

im revving to 8500 on a stock internal b16 with a t3/t4 and with power still climbing at the rev limiter

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">stock head = 8200revs ,going past is pointless and dangerous</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tippyman &raquo;</TD></TR><TR><TD CLASS="quote">Just keep it stock. If the engine's valvetrain is stock, why would you go any higher? It's not like it's making power past 8200 anyway...</TD></TR></TABLE>

This is correct.
If you want more power and higher rpm's safely, you need to upgrade ur valvetrain and better camshafts.

 

i bet he would make power past it, hes turbo .......

now just stock, i totally agree with you guys.

 

all you need is better valvesprings and you can rev higher. if you try to rev over the stock redline you run the risk of floating a valve and ruining your engine.

basically stick with your stock redline until you get some valvetrain then you can rev to your hearts content.

 

8,200rpm... do not go any higher.
unless you wanna float your valves

 

The car was turboed before i spun a rod bearing and rebuilt the motor.....i was reving to 8500 with a t3/t4 and was still gaining power....its actually a b17 with b16 blobk internals....but the heads are the same right??? thanks guys...im thinking about just building the head...

 

Unless your runing aftermarket cars, don't bother going past 8200-8400rpm.
Stocok cams won't be good for any kind of decent powerband above it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91crxturbo &raquo;</TD></TR><TR><TD CLASS="quote">The car was turboed before i spun a rod bearing and rebuilt the motor.....i was reving to 8500 with a t3/t4 and was still gaining power....its actually a b17 with b16 blobk internals....but the heads are the same right??? thanks guys...im thinking about just building the head...</TD></TR></TABLE>

Just because it's still moving foward doesn't mean it's "gaining power". Let's see a dyno chart.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">stock head = 8200revs ,going past is pointless and dangerous</TD></TR></TABLE>
end of discussion

 

8200rpm is the safe rev limiter of the engine. I've had a class this semester on how metal performs under load like high revving engines.

Let's put it this way, honda designed the engine to go to 8200rpm, so obviously the engine has the idiot factor built into it, and the springs are designed to hit 87-8800rpm. Would you tho? No. The springs are not rated for it, they are rated for 8200rpm, and they aren't rated for your engine to be at 8200rpm all the time either. Metal wears down, and unless you plan on smashing a piston into a valve cause your springs are too badly worn out, or you plan on dropping a valve at 9500rpm, don't rev it.

If you want to rev a little bit more, get an ITR valve train. Double springs are better then single, but overall, you would want to upgrade to an even better setup.

But here's what a couple of grand can give you tho:

http://youtube.com/watch?v=H_Q7jDtwN20

Side Note: Don't measure springs in RPM, measure it in RPS (rotation per second). At 9500rpm, your springs are asked to bring each valve in and out, 158 time per second...think your 16 year old springs can do that? At 8200, they are only asked to do it 137 times, big difference at those speeds.


Modified by ludesrv at 8:36 AM 11/25/2006

 

Sebastien and mr. speaker





Modified by Capt. Blonde Beard at 12:16 PM 11/25/2006

 

actually i did dyno it on the old turbo, the rev limit was at 8500 but the line was still crawling up.......and i can tell that there is more power past 8500....i just don't want to see that power unless its safe...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91crxturbo &raquo;</TD></TR><TR><TD CLASS="quote">actually i did dyno it on the old turbo, the rev limit was at 8500 but the line was still crawling up.......and i can tell that there is more power past 8500....i just don't want to see that power unless its safe...</TD></TR></TABLE>

I don't doubt the fact that there is power. But you want to have a decent valve spring/retainer so you don't drop a valve. Turbo always makes it have some more squeezable power out of the top end.

 

my stock first gen b16 with a v-afc hits 9500 everyday, dont tell me it cant be done or that it will float a valve or blow the headgasket. its been running strong for 4 years.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garageEF &raquo;</TD></TR><TR><TD CLASS="quote">my stock first gen b16 with a v-afc hits 9500 everyday, dont tell me it cant be done or that it will float a valve or blow the headgasket. its been running strong for 4 years.</TD></TR></TABLE>

I SMELL BULLS&%*