panchlow

I currently have my stock zc vtec swap on a 92 cx hatch.
boost this?


A buddy of mine has an ls i can get for cheap.
Boost this?


Its my daily and i like to go to the races in the weekend.. im trying to reach betweens the 13-14sec car.

Which one would be worth it? and what engine can hold up longer?

and if possible, stock internals on both.
lmk what u gotta say H-T!!!

95EG2

if u can get ls cheap u should boost the ls... i hear ppl on HT with 15 lbs on boost on there stock LS

panchlow

yea, supposably sumone in town is boosted on his ls with stock internals, tune and hes around 280hp for 2yrs now.

so im thinking it holds up.. idk tho'

b18EK6

Boost the LS, hands down!
https://honda-tech.com/forums/forced-induction-16/lst-ls-t-turbo-b18a-b18b-setups-1323059/

virgineg6

Buy and boost the ls. You can either keep the zc as a back up or sell it and get your money back

grumblemarc

iTrader: (4)

Word of advice. Do not take advice from anyone in this thread unless they have actually boosted an engine. You will get nothing but hearsay/ "I heard" and "my friend/boy". No firsthand experience. Listen to any of it and you will regret it.

Crashtestdummy

Grumble is right, but from a hp stand point, you will get more power from boosting an ls than you will the d16, as for reliablitly, i've never done one can't give ya input on it.

nothing_shocking

If possible, do a compression and/or leak down test on both motors to find where you're starting from. Assuming they're both in equal health, and for that goal, get the B18, throw in some ARP head studs and rod bolts, boost and get a good tune. That's all.

xxEG6xx

Boost the ls like what im doing

Jimster480

Just boost the ZC. I had a boosted single cam for years and it was a blast. It was a built vitara setup making almost 400BHP. If you just boost the stock block you can make 220WHP safely on a good tune. With that you will wreck anyones NA setup basically, unless its fully built or a K series.
Also about "running 15PSI on a LS", that is completely incorrect. PSI means nothing. Its about turbo sizes, your intercooler, tuning, etc. Its about POWER OUTPUT. Yes a stock LS block will make like 300BHP safely. While a SOHC can only make about 250BHP safely. But its just a stock block anyway. You can build a SOHC for the price of the LS and make 400WHP.

panchlow

their both good motors the zc has around 40k miles and the ls around 80k.. ther both in good condition..

how many pounds of boost can the ls in stock internals hold?

do u guys recommend the b16 tranny or gsr?

Jimster480

a LS isnt that great with a B16 tranny. A GSR would be better. But its nothing about PSI, I just explained this. It depends on turbo size. read my previous post, where it explains how much HP it can make. You could get a small as **** turbo and run 20PSI to make the same power as a bigger turbo @ like 10PSI.

panchlow

tru'
my friend wants to sell me his turbo off his evo 8
and make it fit. He says its possible im pretty sure it does, ill go with that.

dont b16 tranny give u higher rpm's? or is it the gsr if im mistaken

Jimster480

An EVO8 turbo can fit. But thye make shitty as **** power. You will be on like 18 PSI making like low 200's WHP. And a B16 tranny has shorter gears for high rpm acceleration. But a LS has no VTEC and has shitty high RPM power. Therefore the 2 dont really go well together.
For the amount of money you spend putting a B series in the car u could just build the D series and not have such a low peak-horsepower cap.

98cdmej6

ok sorry im highjacking but jimster sounds like he knows his stuff
a turbo ls , with a turbo thats got boost on the topend, like spoolin around 5k give er take.
would it give the ls enough high rpm power to make a GSR or b16 tranny a good option?
on my first build and tryin to brew a monster lol
if that dosent make sense its cool i dont think i know what im talkin about lol haha
thanks in advanced

Jimster480

You should get a turbo that spools faster if your going to do a LS and not a LS-V. Because typically turbos that spool in high RPM usually spool the most when VTEC hits (because of the higher lift cams). But I would still do a GSR tranny since its more conducive to daily driving. A b16 tranny keeps the RPM's up basically all the time (and its a bitch to drive on the highway), because of the B16's powerband. The B18 powerbands are typically more flat, and LS/B20 powerbands have more power in the bottom end than other B series because of their longer strokes, and head flow configuration.

panchlow

which one do i get more torque out of??

redm3turbo

torque doesnt exist in hondas :D

Jimster480

The D16's have about the same TQ per liter as B18's. They have slightly less, but its still fine. D15's lose some TQ again. But D16's have longer stroke than any B series, so they make pretty decent torque.

panchlow

u sound like u know sum here and there..

do sum head work on the zc and boost it?
how many pounds wuld it b able to hold?

Jimster480

I had a fully built turbo Civic, that I built my self and maintained for years. Now I have to build a new bottom end. I also helped my friends put together their turbo cars (none Honda's). So I know alot about Forced Induction setups, and alot about Honda's from my own experiences.
There is no point in doing head work on the ZC. if your going to keep the stock bottom end, then you will make more than enough power to blow the bottom end to pieces on a completely stock head. The "pounds" doesnt matter, it matters about how much power you make. Like I said before you can hold 220WHP safely on a stock D series bottom end.