comparing the b16a vs the b18a, both with the same turbo setup and both running forged internals wich one will make more power and be more reliable? take into consideration im only looking for 400whp
i had a b16a2 in my 94 hatch and i loved it, my b18a that i pulled out of my integra smokes and the tranny is grinding. i just dont want to go through rebuilding the head, the motor, and the tranny…so im just considering buying a swap with an lsd tranny and putting forged internals in the the b16. in the long run it will cost me about the same but alot less hassle.
i actually like the peak rpm hp/tq of the b16, and with boost and they are a blast to drive…
the lack of tq and aid of vtec will propel the 16 faster. i still think the 18a might be more fun to drive daily. but, in the end, making less low end tq with the 16 will help it get off of the line harder, and the vtec is icing. above 5K, the 18a will have alot to overcome
Mick-people who don’t like vtec, have never had it. like i said earlier, the ls will probably be more fun to drive daily. but, above 5K, vtec is a life changing experience. i love non-vtec power, its where it all started. but, vtec is the next step. from there its i-vtec. regardless of what anybody thinks, vtec is better.
are u joking me? compression has a lot to do with it. The higher the compression the less boost u need to make ur power goal.
higher compression=higher hp gain per lb of boost.
Chris you should probably stop giving him advice. Unless you want greater chances of detonation and possibly ruining your motor you want lower compression. That is unless you want to use race gas ALL THE TIME. Oh yeah high comp turbo setup pushing 400hp on pump gas is reliable :umno: not what from Ive read!
where did i say anything about running 400hp on pump gas is reliable? PLEASE PLEASE PLEASE show me where i said that. and my point is he wont have to boost as high with the higher comp. A high compression motor can be just as reliable as a low compression. It all comes down to the TUNING!!!. Think of it this way…when u use lower compression, you have to add more boost to reach ur power goal right? With high compression (and for u idiots i dont mean somethin like 12:1, i mean like 10:1), you can make the same power with less boost.
and u tell me not to give him advice?comin from a guy who thinks a non vtec head is better then a vtec…
He said he wanted 400hp on a reliable setup. You said a b16 would be best choice because of higher comp. You dont realize that you want a lower compression for turbo to reduce the risk of detonation. You also dont seem to realize he would be using pump gas, explain to me how a high compression turbo b16 will be running on pump gas. And yes a non vtec head is better that a vtec head when there is more displacement availible from the block. So basically your saying you randomly chimed in to tell us that a high comp turbo setup would make more hp which had nothing to do with the thread?
me personally vtec is nothing sepcial and for that reason i have a challanging build on my hands right now. i have driven many setups in my life time so far and i personally have seen huge gains over vtec with a simple cam upgrade coming from the non-vtec. i know what vtec is all about and it’s nice but if i would ever go back it would be vtec delete cams for me. now alot of people will blah blah about how vtec is made for a better powerband but again a more aggressive cam will out perform the vtec again. i don’t understand why more don’t run vtec delete cams with a good tune. i’ve driven a b18c with them and wow what a difference. but again it’s a “cool” thing to here it change…
to the op: i’ll be taking the more challanging build with the b18b turbo. i like the challange and it’s what i enjoy. when everything is done it should better then i first thought. oh and P&P the B18B head and you will end up with the same flow numbers as the vtec head
You’re full of shit. What does displacement have to do with head flow and port characteristics? VTEC heads are SUPERIOR to non-VTEC heads in every way possible when stock and not ported. No matter what block is attached to the head whether NA or FI, a head that can flow more air faster is better than one that can’t.
No. I chimed in to tell you that VTEC heads flow better than non-VTEC heads, so a turbo B16A can be a potent setup. I never said anything about a high-compression turbo setup making more power than a low compression setup. :read:
If you had equal turbo B18As, one with a PR4 head and one with a PR3 or P72 head, the one with the VTEC head will make more power. BOTTOM LINE.
There is no wrong info there. VTEC delete cams, often called “VTEC killers” are camshafts made for VTEC engines that no don’t have 2 cam profiles on them. When you put these in, it’s like always running in VTEC. You remove all of the lost motion assemblies and VTEC rocker arms with this setup, which greatly reduces valvetrain weight. Race ready NA Honda engines rarely see RPMs below 6,000 RPM on the circuit, so VTEC is pointless. You don’t really have to worry about emissions or gas mileage on a time attack car.
Most people on this message board DAILY DRIVE their cars. VTEC killer cams are not practical for street use. You won’t idle well, you will have horrible emissions, and will get SHIT for gas mileage. VTEC provides all of these. It has nothing to do with hearing the VTEC crossover, although I LOVE hearing that
bottom line is this, and ive had experience with both.
Turbo LS: your going to have to beef it up and rebuild it if you want to run anything over 10psi, it has smaller rod bolts, and generally has high mileage, this equals blown rings, and snapped rods/spun bearings. anyone who tells you otherwise is probably not running it, and spends to much time reading posts by idiots, or has no fucking clue as to what they are talking about, and probably just both. But the advantage to this is you already have the engine, and LS stuff is cheap and easy to come by. for crying out loud you can go to the local pick and pull and get an LS motor for dirt.
Turbo B16: your going to make alot more power, probably ~50 more wheel, at the same boost pressure, because like everyone else said a VTEC head out performs an LS head all day long, and anyone who knows anything knows that the majority of power made on a Honda comes from the cylinder head. plus you get the larger rod bolts out of the box, which will handle some more power. Another advantage is your going to have to buy one from an engine importer, so your going to get an engine with roughly 30k miles on it. so it will be relatively new. The disadvantage is on top of the turbo kit expense, now you have to purchase a new engine, and possibly an ecu depending on what your going to do for tuning.
Hope this helps and VTEC killer cams are fucking awesome.
last time i checked tourque is the basis for acceleration, why do you think V8’s launch so hard? they have low end torque. tourque is what gets you of the line, torque is what accelerates you.
