is it safe to put a turbo on a stock b18b motor?? If other changes need to be made...what else would i have to upgrade?

 

Yes you can turbo the stock motor, the general rule is no more then 8psi on a stock bottom end.

To make it 100% safe or run more boost you need to rebuild the motor with the correct cams, pistons,rods,valvetrain..etc

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Racermech &raquo;</TD></TR><TR><TD CLASS="quote">Yes you can turbo the stock motor, the general rule is no more then 8psi on a stock bottom end.

To make it 100% safe or run more boost you need to rebuild the motor with the correct cams, pistons,rods,valvetrain..etc</TD></TR></TABLE>

i wouldnt really say just 8 psi....if youre within good egt readings above 8 psi you can boost as much as you want until you reach a POWER THRESHOLD...of around 300 whp....8 psi isnt universal for power...

8psi on the disco isnt 8 psi on a t28

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Racermech &raquo;</TD></TR><TR><TD CLASS="quote">Yes you can turbo the stock motor, the general rule is no more then 8psi on a stock bottom end.

To make it 100% safe or run more boost you need to rebuild the motor with the correct cams, pistons,rods,valvetrain..etc</TD></TR></TABLE>

wtf?

there's people on this site running 16 psi on stock B18B's.

and when you build the motor, cams have nothing to do with the strength of the motor. You really just need pistons and rods, but then at some point the sleeves will crack, so you'll need them.

but yes, you can pull off between 250-300 whp from a stock B18B

btw: all honda motors are all aluminum. from as far back as I can remember anyways.

 

From what i have read 8psi seems to be a "good" number for a stock engine, that this will also give you some about of reliabality. You you can boost the hell out of any engine. But if you run enough boost on a stock motor to get 300hp how long will the motor last?? Even with a good tune and good egt how long will it last??

Also there was no mention by the OP as the the miles on the motor, if it is good shape, if he has done a compression test to see if it is even worth considering boosting.


I am in no way saying I am the authority on turbo's, I am just relaying information I have read here and other places when I was thinking about going turbo.

Also my comment about cams. That was if you where going for a fully built turbo motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Racermech &raquo;</TD></TR><TR><TD CLASS="quote">From what i have read 8psi seems to be a "good" number for a stock engine, that this will also give you some about of reliabality. You you can boost the hell out of any engine. But if you run enough boost on a stock motor to get 300hp how long will the motor last?? Even with a good tune and good egt how long will it last??

Also there was no mention by the OP as the the miles on the motor, if it is good shape, if he has done a compression test to see if it is even worth considering boosting.


I am in no way saying I am the authority on turbo's, I am just relaying information I have read here and other places when I was thinking about going turbo.

Also my comment about cams. That was if you where going for a fully built turbo motor.</TD></TR></TABLE>

umm if the egt is good and the a/f is good it will last a very long time...those things are what cause detonation...you need to understand boost isnt universal in comparison to power...whatever you read was severely jaded... Run 8 psi on a t70 and you tell me how long thats gonna last in comparsion to 14 psi on a 18g...power is what puts the stress on the rods...if no detonation exists, power is what will cause the insides to fail...not psi

not all turbo's flow the same....and therefore larger turbos will produce more power at a lower psi...but if that power is more than the engines threshold on the rods...it will fail regardless of how "low of a psi" you were running