B16B safe RPM limit ?


Chris_Gee said:
well ive heard it was 8400 and 8600 and even 8700.

Going by the (unbeliveably inaccurate) tacho in my eg vtec kicks in at about 6100 and then it revs to 8900-9000 rpm.

So i dunno... power fc on its way soon :)

Chris_Gee
Click to expand...

Nice! are you going to install it by yourselft? :nice:
 
rvm said:
Nice! are you going to install it by yourselft? :nice:
Click to expand...

Not a chance :nice:

Rebuilding cars i can do, messing with ecu's i leave to people who know what they are doing and who i can shout at if it goes wrong :hehe:
 
Chris_Gee said:
Not a chance :nice:

Rebuilding cars i can do, messing with ecu's i leave to people who know what they are doing and who i can shout at if it goes wrong :hehe:
Click to expand...

good idea, i can swap engines all day long, i tried to install an afc one time, it blew up :(
 
making a summary the safe range, will be from 8700 to 9000 what do you think?
 
rvm said:
making a summary the safe range, will be from 8700 to 9000 what do you think?
Click to expand...

for stock i agree 9000 and below should be VERY safe.
 
with my stock ecu it revs to 8900rpm, but makes peak power at 8400rpm.

with a spoon ecu it revs to 9400rpm and makes peak power at 8800rpm.
 
on my 98 spec ctr motor, i revved to 9k on my stock ctr cluster with no problem over and over again..then again we all know the stock cluster gets a little innaccurate as the rpms climb
 
Where have all you guys been???

The B16B can safely rev up to 10,000rpm and 11,000rpm redline. The reason why it doens't make power over 9000rpm is bacause of vibrations. Below is the video. This is a stock B16B engine with Spoon's block brace. Which allows teh B16B to rev up to 11,000rpm. Check it out!

http://www.youtube.com/watch?v=Rl8T9KFgjWc
 
It's ok to rev it up to 9200rpm because when you shift, your tacho should drop to 7000rpm which is where B16B's peak power starts to build. But it's a good idea to install a engine torque damper to reduce the vibrations so that the the air and fuel can ignite properly with the spark plugs..
 
jugbugz said:
Where have all you guys been???

The B16B can safely rev up to 10,000rpm and 11,000rpm redline. The reason why it doens't make power over 9000rpm is bacause of vibrations. Below is the video. This is a stock B16B engine with Spoon's block brace. Which allows teh B16B to rev up to 11,000rpm. Check it out!

http://www.youtube.com/watch?v=Rl8T9KFgjWc
Click to expand...

that motor is FULLY built. and that part is discontinued. spoon only built that motor to "show off" what they can do, they have said many times that the best rpm redline for most b-series is about 9400. there is just no reason to rev that high.
 
blinx9900 said:
that motor is FULLY built. and that part is discontinued. spoon only built that motor to "show off" what they can do, they have said many times that the best rpm redline for most b-series is about 9400. there is just no reason to rev that high.
Click to expand...

I'm pretty sure that was on a stock motor.. when I find the article I will post it.
 
jugbugz said:
I'm pretty sure that was on a stock motor.. when I find the article I will post it.
Click to expand...


hahahahahahahahahahaha :lol: phew dont make me laugh bro, there is no way the stock cams would even make power that high up, the max a b16b will peak at on stock cams is 8600, revving after that the power just falls off. if that was the case companies like jun and toda who make valvesprings/retainers would go out of business.
 
blinx9900 said:
hahahahahahahahahahaha :lol: phew dont make me laugh bro, there is no way the stock cams would even make power that high up, the max a b16b will peak at on stock cams is 8600, revving after that the power just falls off. if that was the case companies like jun and toda who make valvesprings/retainers would go out of business.
Click to expand...


Sigh..............
I know you know your mechanics, but read the translated video (carefully)... you will noticed that they implyed that the block brace + oil pan was all that was needed, maybe if you can understand japanese then you'd understand more... you said B series 9400rpm is recomended... by what terms? Stock?

This one here makes 200ps @ 10000rpm.... not 9400rpm... They also said B16B can make more power above 9000rpm but the head was shaking too much due to excessive vibration..

http://asia.vtec.net/article/Spoon1/

you got an article about them fully buiding the engine?
 
jugbugz said:
Sigh..............
I know you know your mechanics, but read the translated video (carefully)... you will noticed that they implyed that the block brace + oil pan was all that was needed, maybe if you can understand japanese then you'd understand more... you said B series 9400rpm is recomended... by what terms? Stock?

This one here makes 200ps @ 10000rpm.... not 9400rpm... They also said B16B can make more power above 9000rpm but the head was shaking too much due to excessive vibration..

http://asia.vtec.net/article/Spoon1/

you got an article about them fully buiding the engine?
Click to expand...

wow, i must have missed this post a while back and forgot to respond, jugbugs i think we eneded up agreeing that the motor was fully built, is that correct or should we continue this discussion?
 
Personally I do think that the motor was stock other than the oilpan and block brace, or atmost only further balanced. The whole point of the comparison was to compare the advantages of having much higher rpms available especially in uphills. A fully built up B engine revs up MUCH faster than that.

The english translation may be rubbish, but the Chinese subtitles clearly states so. ;)
 
JayH said:
Personally I do think that the motor was stock other than the oilpan and block brace, or atmost only further balanced. The whole point of the comparison was to compare the advantages of having much higher rpms available especially in uphills. A fully built up B engine revs up MUCH faster than that.

The english translation may be rubbish, but the Chinese subtitles clearly states so. ;)
Click to expand...

stock cams stop making power at 8200-8400rpm no matter what you do. revving to 11 on stock cams would just slow the car down.
 
You must log in or register to reply here.
Back
Top