New B18 non vtec or used b16 vtec?

**Q_ball** · 30-04-2006 11:49 AM

Originally Posted by Zdster

Let me raise another question:

If you are going to turbo a non-vtec b18 is it manditory to build up the block (ie forged internals) or is that only in the case of pushing serious power/boost pressure?

Definately not manditory for you can apply a simple bolt on kit and run low boost without any issues - doin this will roughly gain u approximately 140-160kw atw.
Building the block up is for peace of mind imo, seeing that majority of b18a/b blocks are relatively old.
I dare say that about 90% of b18a/b engines are roughly 100K+ old, so it wouldnt hurt to spend a little bit more to ensure that the engine doesn't blow up.

**panda[cRx]** · 30-04-2006 07:31 PM

wow for once gayball is posting some helpful info

as he said you don't HAVE to do the internals but it really just depends on how much power you plan on pushing. low boost it should be fine but if you want to up the ante a lil it's a smart idea to be safe and give the internals some work

**z3lda** · 30-04-2006 10:52 PM

standard b18c + turbo + 8psi = 150kws atw

thats what im running.

**locote** · 30-04-2006 10:58 PM

I wouldnt say 13s are out of the question for a N/A B18B.
Its been done.
And it could sure be done again.

**Q_ball** · 02-05-2006 01:47 PM

Originally Posted by locote

I wouldnt say 13s are out of the question for a N/A B18B.
Its been done.
And it could sure be done again.

If you're thinkin of achieving a good time down the 1/4, can u honestly justify spending THAT MUCH MONEY, on building a non-vtec block up to run 13s (keepin it non vtec that is).
Sure u can do it, but sometimes vtec motors have a hard enuf time achievin 13s.
Imo, if u have the spare cash or jst fcukn loaded LOL - then go for it, id love to see gsi non vtec run 13.
But if you're a bit of a tite ass like me,

, then go F.I.

**PopadocD15B4** · 13-05-2006 09:07 PM

from what ive read the compression ratio will be diff in both and the non vtec engin's cam wont be as strong as the vtec son if u seriously choose to build it up either go the non vtec and do the whole thing or just fix up the vtec and turbo there is so many options to it i guess its just down to personal pref.

cheers

**j3z3z** · 13-05-2006 09:15 PM

as some would say why just have vtec or why turbo? when you can have vtec turbo

**PopadocD15B4** · 13-05-2006 09:18 PM

well yeah man vtec turbo would be sweet supercharger wld be good too, as i said its personal preference/expected gains

cheers

**locote** · 13-05-2006 09:23 PM

Why fork out for turbo vtec cams???
Why decompress motor???
Why install a oil line pressure restrictor???
Why change Conrods???
There are so many more things that have to be done to the vtec motor to make it safe to run good amounts of boost,
all 4 of those things have to be done to a vtec motor.
Where as only 1 is a must for a nonvtec.