i have a b16 out of a del sol vtec,its the 94 to 97 engine.my vtec crossover is at 5800 rpms but my room mate that has the same moter in his car has his at 5200.what is the stock rpm for the crossover?

 

I have a JDM B16A SiR II and my crossover is at 5800. He has an ECU that has been chipped and vtec set at an earlier crossover OR is he using a VAFC or a vtec controller?

 

i guess ill leave it at 5800 then,thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Winlight &raquo;</TD></TR><TR><TD CLASS="quote">i have a b16 out of a del sol vtec,its the 94 to 97 engine.my vtec crossover is at 5800 rpms but my room mate that has the same moter in his car has his at 5200.what is the stock rpm for the crossover?</TD></TR></TABLE>

5.8k rpm vtec is a bit high,,, I thought the default was 4.4-4.8k rpm?

 

i dont think its that low,but i do wish it was around 5000 or 5200 but not if the ecu isnt going to give it the right amount of fuel

 

Believe me you don't wish that. On a former B16 I had it was set at 5200. It is so weak when it hits there, Honda sets it at 5800 stock for a reason .

 

my room mates car is way faster then mine and the only diference is his car is 200 lbs lighter and his vtec comes on at 5200.maybe his ecu is dyno tuned.its a jdm moter that came with that ecu.mine is also a jdm moter but i dont know if the ecu i have is the one that came with the moter sence i didnt buy it.i just got the car with the swap already done

 

EM1 is at 5500 I think.
B16A2

 

you sure its a jdm b16? b16a3 was the US DelSol VTEC 160 horse. the delsol sir was like 170 (b16a i think) you could have a us spec motor. i got a del sol vtec it hits at 5800

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by delsolck94 &raquo;</TD></TR><TR><TD CLASS="quote">you sure its a jdm b16? b16a3 was the US DelSol VTEC 160 horse. the delsol sir was like 170 (b16a i think) you could have a us spec motor. i got a del sol vtec it hits at 5800 </TD></TR></TABLE>it could be the us b16,the guy i got it from didnt know much about it either

 

check the block see what is stamped on it

 

Get VTEC killer Cam's, That way your always running a larger cam lobe profile, and you dont have to worry if its engaging or not, lol
I kidd I kidd.

 

My mainly stock SI with the stock b16a2 crosses over like at 5600...

 

stock usdm b18c1 is 4400

 

hey im planning on buying a ecu from phearable.net... i got b16a2 usdm.... and i would like to set the vtec in 5400, shift light at 8000, redline set on 9000(but im not gonna pass 8200 when driving) do u guys think 5400 for vtec good or ill set it back to 5700?

 

^ Good choice, I live in Tampa and so does the owner of Phearable.net. He's supposed to be one of the best around.

Also I have a 00 si, with a B16a2. Vtec crossover is exactly 5500rpms.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by smokerz212 &raquo;</TD></TR><TR><TD CLASS="quote">hey im planning on buying a ecu from phearable.net... i got b16a2 usdm.... and i would like to set the vtec in 5400, shift light at 8000, redline set on 9000(but im not gonna pass 8200 when driving) do u guys think 5400 for vtec good or ill set it back to 5700?</TD></TR></TABLE>

why? what mods do you have?

 

nothing much.... i/h/e... its my daily car.. and i have a problem on mileage... the ecu i have is what came with the car.... the guy said its skunk2 chipped when i opened it it has kenji sticker lolz... but i dunno anything about ecu... i smell gas everytime i start the car.. i checked the hose and everything is ok... and the gas smells from the muffler not in the engine bay...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by smokerz212 &raquo;</TD></TR><TR><TD CLASS="quote">nothing much.... i/h/e... its my daily car.. and i have a problem on mileage... the ecu i have is what came with the car.... the guy said its skunk2 chipped when i opened it it has kenji sticker lolz... but i dunno anything about ecu... i smell gas everytime i start the car.. i checked the hose and everything is ok... and the gas smells from the muffler not in the engine bay...</TD></TR></TABLE>

then just get a stock map from phearable

 

stock map for b16a2? so whats the vtec engagement point? i dont wanna set it higher that 5500... what i really like is its on 5200, is it bad for the engine? when i set the redlimiter to 9000 it wont hurt my engine ryt? as long i dont rev it more than 8200...

 

I was under the impression for a B16a2 was 5200?

 

setting vtec higher or lower than stock on an internally stock engine can lead to a loss in power. it's fine at the stock point, wherever the hell it is since there are so many different answers in this thread.

 

Everyone has a different answer for this. Everyones tach is a little off. From what I know the VTEC crossover on a B16 happens at 5650. It looks like 5800 on the factory tach though because it's a bit off on every car that I have seen.

And to one of the posters that commented on VTEC being weak crossing over at 5200, it's not weak if it was tuned for that. If you look at dyno charts you can see a huge dip in power right before VTEC crossover. When you tune it right and lower the VTEC engagement point you will see a smoother better powerband and not see that loss in power. So even though it feels weaker it's actually faster.

 

when i finish my h23 vtec build im going to dino tune it and have vtec kick in somewhere around 5000,ill stick with 5800 untell then i guess

 

i have a del sol vtec and mine changes at around 5500 i think that your tach might be a little off