just as the title says if your going to run the bnr stage 3's at 17psi on a street ported motor with bout every mod known for the twins.. do you need to run meth/water injection or will it be safe without it on 93 octane? the intercooler is very large and a front mount.

 

its not needed if you have a good tune.

does it help? Yes

 

Oh ......I didn't know a "good tune" can lower intake temps and be a knock suppressant.......

-J

 

I think its the boost pressure that you want to run. thats why people are recomending it. Alot of tuners stay around 15psi on 93 (w/o meth) you should talk to your tuner and see what they are comfortable with. But I would recomend meth injection anyways and run 20psi on 93

 

20psi haha on the bnr's sequential haha!! i know they will run it but for how long?? i dont wanna pop my motor or twins a few thousand miles down the road.. i want a good reliable setup that will run for 30-40K miles at least that will still give me near 400whp..

 

2 words boost controller, run 15 psi all the time then turn on meth and turn boost up to 20psi