i am rebiulding my b18c5 and have installed a block guard. i know without block guard i can run 5-7 psi...what can i run with the guard? thanks guys.

 

5.1-7.1

your problem is the high compression and cast internals. though the guard will stabilize the cylinders at high rpms, so its a great investment.

 

ok, so your answer is max 7.1? i was hoping to get more than that with a block guard. still, i guess i didn't hurt anything. by the way, do i have to disable VTEC with turbo. I hear some say yes and others say no. Also, with 7.1, what can i expect HP wise, i'm getting 167 HP to the wheels now. Thanks again for your input.

 

167 on a c5 with a turbo? What do you have it in backwards or somethin?

 

good one xcm. No, i do not have the turbo yet. I am seeing if it is worth getting one. I didn't want to fork out that kind of money and just get, lets say 60 HP. the 167 HP is NA. no turbo

 

roflmfao

 

with good fuel managment you could propably run higher boost than 7 psi but this is also dependant on the size of your turbo. people have said that a 1.5 stock bottom end could not hold more than 9 psi or even a 75 shot of n2o. well ive ran a 75 shot for 7 months then went with a t28 turbo for another 4 months. . .till this day the car still runs.

 

Well, that's kind of a different story. The 1.5's are a lot sturdier than anybody thinks, but comparing one to a C5 to judge how much boost you can use is just bad.

 

those d15 conrods just make me a little nervous. when i pulled mine out, i coulnt believe how thin they were.

 

Yeah, it's true. The rods look like twigs. But after seeing someone running 9 lbs. and a 40 shot on a stock D15B1 daily with no issues...