MALICE85

iTrader: (23)

Ok so my car is up and running now, but I have been hit by the boost bug! So i am not sure what kit i am going to go with, but I wanted to know, is there any modifications I can make to my B20 that will complement my winter boost build without going backwards? I have only owned a Boosted celica, that I bought like that so i have no idea. I am doing my bodywork over winter myself, so I have the time to piece together a good boosted motor..no rush, and I am not saying money is not an object, but because i have 12 months, lol i can pull off something worthwhile.

Any advice would be appreciated!!

**I was thinking a VTEC conversion w/a built head, that is as far as I am thinking without messing up the turbo build.**

D.T.P

iTrader: (3)

Um how about...you post your power goals and budget. I don't know your income or disposable income. Hell, get the block sleeved, some low cp pistons, 8.5:1 or so. Stronger rods, balance whole rotating assembly. All arp studs/bolts, built head with oversized valves in a itr head. Bigger cams, and ofcourse valve train. Then get a garret gt4282 which should compliment the setup nicely and crank up the boost to 25-28psi. Ohhh and don't forget about bigger driveshafts and LSD.

Good luck

MALICE85

iTrader: (23)

yea i think my budget would be somewhere in the 4-5K range? the building of the head/bottom end wouldnt be a huge priority because i am just looking to get another 100 HP out of my setup and i think that is accessible with a turbo set up? but sleeving the block would be a consideration. i am looking at gsr or type r head, i have found some, just trying to get some more info on that, and while i do my vtec conversion, for looks i def want to do a wire tuck, and possibly powdercoat the bottom end..

SilentAssassin

it always comes down too the money.

D.T.P

iTrader: (3)

Total budget of 4-5k? Well that may be enough for proper turbo setup. Don't bother doing much else. Get a small turbo setup, with reliable parts, and you will hit the 100hp gain no problem. Keep in mind +100hp that's about 220whp. B20 has no problem going to 240-250whp.

Sleeving alone is 1000$

MALICE85

iTrader: (23)

yeah that would be ok, i can do a couple thing here and there at the same time, while keeping up with my budget, i am also doing all the work myself with my dad and uncle (super certified mechanics), my uncle used to boost and tune datsuns in kenya and SA for the rallys so the experience is there! so there is no labour cost in my equation so im hopeing the build will include some more upgrades due to saving some money..
back to the vtec conversion, a guy just emailed me back he has a vtec gsr b17 head, complete minus IM, for 300 obo..looks clean, and depending on condition, do u think that price is legit? im not lowballin buh dont want to pay over..thanks guys!

AcuratePaul

iTrader: (8)

300..... Something sounds fishy.

D.T.P

iTrader: (3)

Well few things. Turbo kit alone in quality parts should come close to 5k. Don't forget about upgrading driveshafts and make sure you can stop. And quality parts are expensive. When you think about it, a quality blower ranges from 1000-1800$. Things add up quick. Keep that in mind and don't go blowing your budget on vtec head

Moving on to vtec conversion, well as long as the block is in good condition, I would suggest getting a machine shop install the arp rod bolts. Regardless of how qualified your uncle is, installing rod bolts should be done at a machine shop. Big end of rod should be checked for going out of round during bolts being pressed out/in. Vtec conversion kit and you should be good to go. The head being priced for 300$ is a very good price. Good chance to upgrade to skunk2 intake manifold or some other aftermarket one.

Imo other than arps you shouldn't touch the engine and invest the money in more quality parts, but that's just me.

Fast, cheap, reliable. Choose 2.

MALICE85

iTrader: (23)

yeah i am looking thru a couple diff. heads right now, and do the vtec conversion and arp head studs, gotta start somewhere...

MALICE85

iTrader: (23)

found a b18c head, no IM or fuel rail, for $350, should be picking up next wednesday, then by end of june:
head studs
blackworks conversion kit
TB, WP & Oil Pump (OEM GSR)

MALICE85

iTrader: (23)

So this is a question.

If I do the B20 Vtec set up before I go boost, how much extra power am I getting?! Because all in all, the whole Conversion is going to cost me about $1000. Is it really worth it??!?!

And when I tune it, do I go Vtec at XXXRPM and then spool at a higher RPM?!?

I have no idea..

D.T.P

iTrader: (3)

1000$ may be tight, well more like impossible.

350$ spend on head, arp head bolts are 160$ (I believe, cannot remember what I paid), water pump/timing belt etc, you're close to 700-750$ plus random things here and there. To top it all off, tune is 500$. Don't even think of running the engine on stock b16/gsr or whatever ecu. Then you go boost and retune again...might aswell do everything at once.

You should see about 170whp with the conversion. And your vtec will engage when it normally does with turbo. All vtec is, is different set of cam lobes, so it will be set to most optimal point, somewhere around 5k rpm. Keep in mind, b20s don't like high rpm, and it often results in spun bearings or premature wear on the bearings. Moreover, the turbo will spool depending on the size you get.

MALICE85

iTrader: (23)

thanks, yeah i hear ya, but the head bolts, timing belt water pump etc is cheap for me, i pay cost plus 10% cz i work at Honda!!! so its comes cheap to me...but yeah i hear you, but 170whp is good cz then with boost ill hit that 220whp no problems...the 170 ur estimating, is including my bolt ons? s2 TB, s2 IM, some kind of exhaust,cold air, etc..

D.T.P

iTrader: (3)

Those mods don't really add much power. Maybe if it was built, then yes, in your case, its not much of a power adder. S2 intake manifold having shorter runners than stock, will give you better numbers up top, yet non down low.

Turbo wise, as long as you don't spin it too fast, keep it under 8k and don't even think of going anything above and you should be just fine. Don't drive it like you stole it, and it will last.

MALICE85

iTrader: (23)

yeah im going to tune only once, because by the time the vtec is done, it will b winter so it wont be on the road, and early next year well boost, so it will just be one tune, which is fine right?