i have to order a ecu again, due to the fact mine went bad somehow..
anyways it says the one im gonna buy vtec is set at 5,600. whats the lowest i can go for a stock b18c5 engine..? could i do 5,000 and still be reliable?

 

bump. would like to know. (just for info O_o)

 

ttt

 

ttt

 

Usually types like vtec around 5200-5400rpms.

 

1000rpms is the awesomeness..jk
mine is at 5k but my motor is probley set dif then yours
but 5k seems just right to.
(gsr low comp, turbo)

 

a stock ITR will likely loose power if you set it to 5k, 5200 is the lowest I'd go unless you have it tuned specifically for the lower point.
IMO a basemap should start with a 5400-5600 VTEC point and tuned from there.

 

Exactly. I have my vtec kicking in at 3k. JRSC'd D16 tuned with a s300 by me. As long as you know what you are doing tuning-wise, you should be fine.

 

well i just assumed leave it at wht they put it at(5,600) i dont plan on keeping the c5 in it that long anyways just the daily motor so i can build my gsr out of the car for turbo

 

Your vtec point on a stock b18c5 really depends on your exhaust/intake setup as well as how well your ecu is tuned etc.

We have tuned type-r motors with toda style headers & a short ram intake with vtec at 4800 rpms. Then we have seen some with stock exhaust/headers & intake boxes like vtec at a higher point such as 5,500 rpms.

One old school example:

 

you can set it where ever you want it but the car will like it at 5400-5600. the car you will noticable feel it there even if it was earlier.

 

i always say 5200. works great for all the cars ive personally witnessed