Poey2

I have a noobie question that im sure many people here can answer.

I have an LS motor that i would like to build up for Turbo. I want to completely build the head and bottom end. My question is...

1. Are there any advantages in the other B series motors (B16/B18C/etc..) over the B18B motor I have if every upgrade is the same?

2. Im planning to go turbo so i dont really care for Vtec. Will my LS head and bottom end handle 300+ hp and 8K rpm daily if the head and motor is built?

Thanks in advance.

Paul

SOHCD16y8

1. Yes, Vtec B-series motors make more power much more easily than an LS motor does. Most people end up building these due to the fact that you can make 550+ on a stock head.

2. Yes, 300hp can be done on a stock motor and 8k just requires valve spring upgrades.

I personally am an LS guy, I love the amazing torque the motors make and just the feel of the powerband.

Schister66

no need to build for 300whp....there are plenty of guys daily driving them in the 320+ range on stock blocks.

Poey2

Yes I've seen many with stock LS making thta much power but how long will it last?

If i built the motor how much more longer will the motor last daily driven at 350hp and reving up to 8K rpm.

Thanks

SOHCD16y8

You cant just give a time it will last. It depends on so many factors. If you want a car you can beat on all day and not have to worry about do a stock bore ls with pistons/rods/heastuds/ valve springs and retainers and call it a day. This is assuming a 350whp goal.

SOHCD16y8

BTW why do you want 8k anyway?

Poey2

I want a fun daily driving 350+hp street driven with a good powerband. If i turbo charge the LS i need some powerband to allow for the boost to build. With the LS i think it would redline too fast. Am I right or wrong?

Anything over 400hp i think will be too much on street tires and daily driven. Plus inform me if im wrong.

Thanks for ans my questions

SOHCD16y8

On a stock cam Ls there is no point in revving over 7000. If you have some headwork to allow for higher revving then it is a different story. You really dont just gain powerband by revving higher without actually producing more power.

As long as you use an LS tranny you will not run out of gear to fast.


400 for a daily depends on lots of things like how you drive and what chassis it is in. 400 in an ef is overkill for a daily, however in a 2900lbs with driver ek coupe like mine 400+ is not TOO much. I have traction issues at the top of second and third with drag radials and an lsd, but thats only when on high boost. I personally would build a nice motor for 400-450 and daily it on low boost and then just forget about it.